Update .gitignore

🔖 Marlin 2.0.5.5
🔨 PlatformIO 6 compatibility
2023-12-27 15:26:52 -06:00 · 2023-07-20 14:10:45 -05:00 · 2023-07-20 14:10:45 -05:00
2337 changed files with 59835 additions and 204184 deletions
--- a/.editorconfig
+++ b/.editorconfig
@@ -4,10 +4,10 @@ root = true
 [{*.patch,syntax_test_*}]
 trim_trailing_whitespace = false

-[{*.c,*.cpp,*.h,*.ino}]
+[{*.c,*.cpp,*.h}]
 charset = utf-8

-[{*.c,*.cpp,*.h,*.ino,Makefile}]
+[{*.c,*.cpp,*.h,Makefile}]
 trim_trailing_whitespace = true
 insert_final_newline = true
 end_of_line = lf
--- a/.gitattributes
+++ b/.gitattributes
@@ -17,5 +17,3 @@
 *.png binary
 *.jpg binary
 *.fon binary
-*.bin binary
-*.woff binary
--- a/.github/FUNDING.yml
+++ b/.github/FUNDING.yml
@@ -1,3 +1,3 @@
 github: [thinkyhead]
 patreon: thinkyhead
-custom: ["https://www.thinkyhead.com/donate-to-marlin"]
+custom: ["http://www.thinkyhead.com/donate-to-marlin"]
--- a/.github/ISSUE_TEMPLATE/bug_report.md
+++ b/.github/ISSUE_TEMPLATE/bug_report.md
@@ -0,0 +1,43 @@
+---
+name: Bug report
+about: Report a bug in Marlin
+title: "[BUG] (short description)"
+labels: ''
+assignees: ''
+
+---
+
+<!--
+
+Have you read Marlin's Code of Conduct? By filing an Issue, you are expected to comply with it, including treating everyone with respect: https://github.com/MarlinFirmware/Marlin/blob/master/.github/code_of_conduct.md
+
+Do you want to ask a question? Are you looking for support? Please don't post here. Instead please use one of the support links at https://github.com/MarlinFirmware/Marlin/issues/new/choose
+
+Before filing an issue be sure to test the "bugfix" branches to see whether the issue has been resolved.
+
+-->
+
+### Bug Description
+
+<!-- Description of the bug -->
+
+### My Configurations
+
+**Required:** Please include a ZIP file containing your `Configuration.h` and `Configuration_adv.h` files.
+
+### Steps to Reproduce
+
+<!-- Please describe the steps needed to reproduce the issue -->
+
+1. [First Step]
+2. [Second Step]
+3. [and so on...]
+
+**Expected behavior:** [What you expect to happen]
+
+**Actual behavior:** [What actually happens]
+
+#### Additional Information
+
+* Provide pictures or links to videos that clearly demonstrate the issue.
+* See [How Can I Contribute](#how-can-i-contribute) for additional guidelines.
--- a/.github/ISSUE_TEMPLATE/bug_report.yml
+++ b/.github/ISSUE_TEMPLATE/bug_report.yml
@@ -1,157 +0,0 @@
-name: 🪲 Report a bug
-description: Create a bug report to help improve Marlin Firmware
-title: "[BUG] (bug summary)"
-body:
-  - type: markdown
-    attributes:
-      value: >
-        Do you want to ask a question? Are you looking for support? Please use one of the [support links](https://github.com/MarlinFirmware/Marlin/issues/new/choose).
-
-  - type: markdown
-    attributes:
-      value: |
-        **Thank you for reporting a bug in Marlin Firmware!**
-
-        ## Before Reporting a Bug
-
-        - Read and understand Marlin's [Code of Conduct](https://github.com/MarlinFirmware/Marlin/blob/master/.github/code_of_conduct.md). You are expected to comply with it, including treating everyone with respect.
-
-        - Test with the [`bugfix-2.0.x` branch](https://github.com/MarlinFirmware/Marlin/archive/bugfix-2.0.x.zip) to see whether the issue still exists.
-
-        ## Instructions
-
-        Please follow the instructions below. Failure to do so may result in your issue being closed. See [Contributing to Marlin](https://github.com/MarlinFirmware/Marlin/blob/2.0.x/.github/contributing.md) for additional guidelines.
-
-        1. Provide a good title starting with [BUG].
-        2. Fill out all sections of this bug report form.
-        3. Always attach configuration files so we can build and test your setup.
-
-  - type: dropdown
-    attributes:
-      label: Did you test the latest `bugfix-2.0.x` code?
-      description: >-
-        Always try the latest code to make sure the issue you are reporting is not already fixed. To download
-        the latest code just [click this link](https://github.com/MarlinFirmware/Marlin/archive/bugfix-2.0.x.zip).
-      options:
-        - Yes, and the problem still exists.
-        - No, but I will test it now!
-    validations:
-      required: true
-
-  - type: markdown
-    attributes:
-      value: |
-        # Bug Details
-
-  - type: textarea
-    attributes:
-      label: Bug Description
-      description: >-
-        Describe the bug in this section. Tell us what you were trying to do and what
-        happened that you did not expect. Provide a clear and concise description of the
-        problem and include as many details as possible.
-      placeholder: |
-        Marlin doesn't work.
-    validations:
-      required: true
-
-  - type: input
-    attributes:
-      label: Bug Timeline
-      description: Is this a new bug or an old issue? When did it first start?
-
-  - type: textarea
-    attributes:
-      label: Expected behavior
-      description: >-
-        What did you expect to happen?
-      placeholder: I expected it to move left.
-
-  - type: textarea
-    attributes:
-      label: Actual behavior
-      description: What actually happened instead?
-      placeholder: It moved right instead of left.
-
-  - type: textarea
-    attributes:
-      label: Steps to Reproduce
-      description: >-
-        Please describe the steps needed to reproduce the issue.
-      placeholder: |
-        1. [First Step] ...
-        2. [Second Step] ...
-        3. [and so on] ...
-
-  - type: markdown
-    attributes:
-      value: |
-        # Your Setup
-
-  - type: input
-    attributes:
-      label: Version of Marlin Firmware
-      description: "See the About Menu on the LCD or the output of `M115`. NOTE: For older releases we only patch critical bugs."
-    validations:
-      required: true
-
-  - type: input
-    attributes:
-      label: Printer model
-      description: Creality Ender 3, Prusa mini, or Kossel Delta?
-
-  - type: input
-    attributes:
-      label: Electronics
-      description: Stock electronics, upgrade board, or something else?
-
-  - type: input
-    attributes:
-      label: Add-ons
-      description: Please list any hardware add-ons that could be involved.
-
-  - type: dropdown
-    attributes:
-      label: Your Slicer
-      description: Do you use Slic3r, Prusa Slicer, Simplify3D, IdeaMaker...?
-      options:
-        - Slic3r
-        - Simplify3D
-        - Prusa Slicer
-        - IdeaMaker
-        - Cura
-        - Other (explain below)
-
-  - type: dropdown
-    attributes:
-      label: Host Software
-      description: Do you use OctoPrint, Repetier Host, Pronterface...?
-      options:
-        - SD Card (headless)
-        - Repetier Host
-        - OctoPrint
-        - Pronterface
-        - Cura
-        - Same as my slicer
-        - Other (explain below)
-
-  - type: markdown
-    attributes:
-      value: >-
-        ## Other things to include
-
-        Please also be sure to include these items to help with troubleshooting:
-
-          * **A ZIP file** containing your `Configuration.h` and `Configuration_adv.h`.
-            (Please don't paste lengthy configuration text here.)
-          * **Log output** from the host. (`M111 S247` for maximum logging.)
-          * **Images or videos** demonstrating the problem, if it helps to make it clear.
-          * **A G-Code file** that exposes the problem, if not affecting _all_ G-code.
-
-        If you've made any other modifications to the firmware, please describe them in detail in the space provided.
-
-        When pasting formatted text into the box below don't forget to put ` ``` ` (on its own line) before and after to make it readable.
-
-  - type: textarea
-    attributes:
-      label: Additional information & file uploads
--- a/.github/ISSUE_TEMPLATE/config.yml
+++ b/.github/ISSUE_TEMPLATE/config.yml
@@ -1,20 +1,17 @@
 blank_issues_enabled: false
 contact_links:
-  - name: 📖 Marlin Documentation
+  - name: Marlin Documentation
    url: http://marlinfw.org/
    about: Lots of documentation on installing and using Marlin.
-  - name: 👤 MarlinFirmware Facebook group
+  - name: MarlinFirmware Facebook group
    url: https://www.facebook.com/groups/1049718498464482
    about: Please ask and answer questions here.
-  - name: 🕹 Marlin on Discord
+  - name: Marlin on Discord
    url: https://discord.gg/n5NJ59y
    about: Join the Discord server for support and discussion.
-  - name: 🔗 Marlin Discussion Forum
+  - name: Marlin Discussion Forum
    url: http://forums.reprap.org/list.php?415
    about: A searchable web forum hosted by RepRap dot org.
-  - name: 📺 Marlin Videos on YouTube
+  - name: Marlin Videos on YouTube
    url: https://www.youtube.com/results?search_query=marlin+firmware
    about: Tutorials and more from Marlin users all around the world. Great for new users!
-  - name: 💸 Want to donate?
-    url: https://www.thinkyhead.com/donate-to-marlin
-    about: Please take a look at the various options to support Marlin Firmware's development financially!
--- a/.github/ISSUE_TEMPLATE/feature_request.md
+++ b/.github/ISSUE_TEMPLATE/feature_request.md
@@ -0,0 +1,35 @@
+---
+name: Feature request
+about: Request a Feature
+title: "[FR] (feature request title)"
+labels: ''
+assignees: ''
+
+---
+
+<!--
+
+Have you read Marlin's Code of Conduct? By filing an Issue, you are expected to comply with it, including treating everyone with respect: https://github.com/MarlinFirmware/Marlin/blob/master/.github/code_of_conduct.md
+
+Do you want to ask a question? Are you looking for support? Please don't post here. Instead please use one of the support links at https://github.com/MarlinFirmware/Marlin/issues/new/choose
+
+Before filing an issue be sure to test the "bugfix" branches to see whether the issue has been resolved.
+
+-->
+
+### Description
+
+<!-- Description of the requested feature -->
+
+### Feature Workflow
+
+<!-- Please describe the feature's behavior, user interaction, etc. -->
+
+1. [First Action]
+2. [Second Action]
+3. [and so on...]
+
+#### Additional Information
+
+* Provide pictures or links that demonstrate a similar feature or concept.
+* See [How Can I Contribute](#how-can-i-contribute) for additional guidelines.
--- a/.github/ISSUE_TEMPLATE/feature_request.yml
+++ b/.github/ISSUE_TEMPLATE/feature_request.yml
@@ -1,44 +0,0 @@
-name: ✨ Request a feature
-description: Request a new Marlin Firmware feature
-title: "[FR] (feature summary)"
-labels: 'T: Feature Request'
-body:
-  - type: markdown
-    attributes:
-      value: >
-        Do you want to ask a question? Are you looking for support? Please use one of the [support links](https://github.com/MarlinFirmware/Marlin/issues/new/choose).
-
-  - type: markdown
-    attributes:
-      value: >
-        **Thank you for requesting a new Marlin Firmware feature!**
-
-        ## Before Requesting a Feature
-
-        - Read and understand Marlin's [Code of Conduct](https://github.com/MarlinFirmware/Marlin/blob/master/.github/code_of_conduct.md). You are expected to comply with it, including treating everyone with respect.
-
-        - Check the latest [`bugfix-2.0.x` branch](https://github.com/MarlinFirmware/Marlin/archive/bugfix-2.0.x.zip) to see if the feature already exists.
-
-        - Before you proceed with your request, please consider if it is necessary to make it into a firmware feature, or if it may be better suited for a slicer or host feature.
-
-  - type: textarea
-    attributes:
-      label: Is your feature request related to a problem? Please describe.
-      description: A clear description of the problem (e.g., "I need X but Marlin can't do it [...]").
-
-  - type: textarea
-    attributes:
-      label: Are you looking for hardware support?
-      description: Tell us the printer, board, or peripheral that needs support.
-
-  - type: textarea
-    attributes:
-      label: Describe the feature you want
-      description: A clear description of the feature and how you think it should work.
-    validations:
-      required: true
-
-  - type: textarea
-    attributes:
-      label: Additional context
-      description: Add any other context or screenshots about the feature request here.
--- a/.github/contributing.md
+++ b/.github/contributing.md
@@ -34,15 +34,16 @@ This project and everyone participating in it is governed by the [Marlin Code of

 We have a Message Board and a Facebook group where our knowledgable user community can provide helpful advice if you have questions.

-* [Marlin RepRap forum](https://reprap.org/forum/list.php?415)
+* [Marlin RepRap forum](http://forums.reprap.org/list.php?415)
 * [MarlinFirmware on Facebook](https://www.facebook.com/groups/1049718498464482/)

-If chat is more your speed, you can join the MarlinFirmware Discord server:
+If chat is more your speed, you can join the MarlinFirmware Slack team:

-* Use the link https://discord.gg/n5NJ59y to join up as a General User.
-* Even though our Discord is pretty active, it may take a while for community members to respond &mdash; please be patient!
-* Use the `#general` channel for general questions or discussion about Marlin.
-* Other channels exist for certain topics or are limited to Patrons. Check the channel list.
+* Join the Marlin Slack Team
+  * To obtain group access, please [send a request](http://www.thinkyhead.com/contact/9) to @thinkyhead.
+  * Even though Slack is a chat service, sometimes it takes several hours for community members to respond &mdash; please be patient!
+  * Use the `#general` channel for general questions or discussion about Marlin.
+  * Other channels exist for certain topics. Check the channel list.

 ## How Can I Contribute?

@@ -92,7 +93,7 @@ Before creating a suggestion, please check [this list](#before-submitting-a-sugg

 #### Before Submitting a Feature Request

-* **Check the [Marlin website](https://marlinfw.org/)** for tips — you might discover that the feature is already included. Most importantly, check if you're using [the latest version of Marlin](https://github.com/MarlinFirmware/Marlin/releases) and if you can get the desired behavior by changing [Marlin's config settings](https://marlinfw.org/docs/configuration/configuration.html).
+* **Check the [Marlin website](http://marlinfw.org/)** for tips — you might discover that the feature is already included. Most importantly, check if you're using [the latest version of Marlin](https://github.com/MarlinFirmware/Marlin/releases) and if you can get the desired behavior by changing [Marlin's config settings](http://marlinfw.org/docs/configuration/configuration.html).
 * **Perform a [cursory search](https://github.com/MarlinFirmware/Marlin/issues?q=is%3Aissue)** to see if the enhancement has already been suggested. If it has, add a comment to the existing issue instead of opening a new one.

 #### How Do I Submit A (Good) Feature Request?
@@ -116,12 +117,12 @@ Unsure where to begin contributing to Marlin? You can start by looking through t

 ### Pull Requests

-Pull Requests should always be targeted to working branches (e.g., `bugfix-1.1.x` and/or `bugfix-2.0.x`) and never to release branches (e.g., `1.1.x`). If this is your first Pull Request, please read our [Guide to Pull Requests](https://marlinfw.org/docs/development/getting_started_pull_requests.html) and Github's [Pull Request](https://help.github.com/articles/creating-a-pull-request/) documentation.
+Pull Requests should always be targeted to working branches (e.g., `bugfix-1.1.x` and/or `bugfix-2.0.x`) and never to release branches (e.g., `1.1.x`). If this is your first Pull Request, please read our [Guide to Pull Requests](http://marlinfw.org/docs/development/getting_started_pull_requests.html) and Github's [Pull Request](https://help.github.com/articles/creating-a-pull-request/) documentation.

 * Fill in [the required template](pull_request_template.md).
 * Don't include issue numbers in the PR title.
 * Include pictures, diagrams, and links to videos in your Pull Request to demonstrate your changes, if needed.
-* Follow the [Coding Standards](https://marlinfw.org/docs/development/coding_standards.html) posted on our website.
+* Follow the [Coding Standards](http://marlinfw.org/docs/development/coding_standards.html) posted on our website.
 * Document new code with clear and concise comments.
 * End all files with a newline.

@@ -136,7 +137,7 @@ Pull Requests should always be targeted to working branches (e.g., `bugfix-1.1.x

 ### C++ Coding Standards

-* Please read and follow the [Coding Standards](https://marlinfw.org/docs/development/coding_standards.html) posted on our website. Failure to follow these guidelines will delay evaluation and acceptance of Pull Requests.
+* Please read and follow the [Coding Standards](http://marlinfw.org/docs/development/coding_standards.html) posted on our website. Failure to follow these guidelines will delay evaluation and acceptance of Pull Requests.

 ### Documentation

--- a/.github/issue_template.md
+++ b/.github/issue_template.md
@@ -1,35 +1,16 @@
-<!--
+# NO SUPPORT REQUESTS PLEASE

-Have you read Marlin's Code of Conduct? By filing an Issue, you are expected to comply with it, including treating everyone with respect: https://github.com/MarlinFirmware/Marlin/blob/bugfix-2.0.x/.github/code_of_conduct.md
+Support Requests posted here will be automatically closed!

-Do you want to ask a question? Are you looking for support? Please don't post here. Instead use one of the following options:
+This Issue Queue is for Marlin bug reports and development-related issues, and we prefer not to handle user-support questions here. See https://github.com/MarlinFirmware/Marlin/blob/1.1.x/.github/contributing.md#i-dont-want-to-read-this-whole-thing-i-just-have-a-question.

- The Marlin Firmware forum at https://reprap.org/forum/list.php?415
- The MarlinFirmware Facebook Group at https://www.facebook.com/groups/1049718498464482/
- The MarlinFirmware Discord Server at https://discord.gg/n5NJ59y.
+For best results getting help with configuration and troubleshooting, please use the following resources:

-Before filing an issue be sure to test the latest "bugfix" branch to see whether the issue is already addressed.
+- RepRap.org Marlin Forum http://forums.reprap.org/list.php?415
+- Tom's 3D Forums https://discuss.toms3d.org/
+- Facebook Group "Marlin Firmware" https://www.facebook.com/groups/1049718498464482/
+- Facebook Group "Marlin Firmware for 3D Printers" https://www.facebook.com/groups/3Dtechtalk/
+- Marlin Configuration https://www.youtube.com/results?search_query=marlin+configuration on YouTube
+- Marlin Discord server. Join link: https://discord.gg/n5NJ59y

-->
-
-### Description
-
-<!-- Description of the bug or requested feature -->
-
-### Steps to Reproduce
-
-<!-- If this is a Bug Report, please describe the steps needed to reproduce the issue -->
-
-1. [First Step]
-2. [Second Step]
-3. [and so on...]
-
-**Expected behavior:** [What you expect to happen]
-
-**Actual behavior:** [What actually happens]
-
-#### Additional Information
-
-* Include a ZIP file containing your `Configuration.h` and `Configuration_adv.h` files.
-* Provide pictures or links to videos that clearly demonstrate the issue.
-* See [How Can I Contribute](#how-can-i-contribute) for additional guidelines.
+After seeking help from the community, if the consensus points to to a bug in Marlin, then you should post a Bug Report at https://github.com/MarlinFirmware/Marlin/issues/new/choose).
--- a/.github/lock.yml
+++ b/.github/lock.yml
@@ -1,40 +0,0 @@
-#
-# Configuration for Lock Threads - https://github.com/dessant/lock-threads-app
-#
-
-# Number of days of inactivity before a closed issue or pull request is locked
-daysUntilLock: 60
-
-# Skip issues and pull requests created before a given timestamp. Timestamp must
-# follow ISO 8601 (`YYYY-MM-DD`). Set to `false` to disable
-skipCreatedBefore: false
-
-# Issues and pull requests with these labels will be ignored. Set to `[]` to disable
-exemptLabels: [ 'no-locking' ]
-
-# Label to add before locking, such as `outdated`. Set to `false` to disable
-lockLabel: false
-
-# Comment to post before locking. Set to `false` to disable
-lockComment: >
-  This thread has been automatically locked since there has not been
-  any recent activity after it was closed. Please open a new issue for
-  related bugs.
-
-# Assign `resolved` as the reason for locking. Set to `false` to disable
-setLockReason: true
-
-# Limit to only `issues` or `pulls`
-# only: issues
-
-# Optionally, specify configuration settings just for `issues` or `pulls`
-# issues:
-#   exemptLabels:
-#     - help-wanted
-#   lockLabel: outdated
-
-# pulls:
-#   daysUntilLock: 30
-
-# Repository to extend settings from
-# _extends: repo
--- a/.github/pull_request_template.md
+++ b/.github/pull_request_template.md
@@ -1,33 +1,19 @@
-<!--
+### Requirements

-Submitting a Pull Request
-
- Please fill out all sections of this form. You can delete the helpful comments.
- Pull Requests without clear information will take longer and may even be rejected.
- We get a high volume of submissions so please be patient during review.
-
-->
+* Filling out this template is required. Pull Requests without a clear description may be closed at the maintainers' discretion.

 ### Description

 <!--

-Clearly describe the submitted changes with lots of details. Include images where helpful. Initial reviewers may not be familiar with the subject, so be as thorough as possible. You can use MarkDown syntax to improve readability with bullet lists, code blocks, and so on. PREVIEW and fix up formatting before submitting.
+We must be able to understand your proposed change from this description. If we can't understand what the code will do from this description, the Pull Request may be closed at the maintainers' discretion. Keep in mind that the maintainer reviewing this PR may not be familiar with or have worked with the code recently, so please walk us through the concepts.

 -->

-### Requirements
-
-<!-- Does this PR require a specific board, LCD, etc.? -->
-
 ### Benefits

-<!-- What does this PR fix or improve? -->
-
-### Configurations
-
-<!-- Attach Configurations ZIP and any other files needed to test this PR. -->
+<!-- What does this fix or improve? -->

 ### Related Issues

-<!-- Does this PR fix a bug or fulfill a Feature Request? Link related Issues here. -->
+<!-- Whether this fixes a bug or fulfills a feature request, please list any related Issues here. -->
--- a/.github/workflows/check-pr.yml
+++ b/.github/workflows/check-pr.yml
@@ -20,8 +20,9 @@ jobs:
    runs-on: ubuntu-latest

    steps:
-    - uses: superbrothers/close-pull-request@v3
+    - uses: peter-evans/close-pull@v1
      with:
+        delete-branch: false
        comment: >
          Thanks for your contribution! Unfortunately we can't accept PRs directed at release branches. We make patches to the bugfix branches and only later do we push them out as releases.

--- a/.github/workflows/clean-closed.yml
+++ b/.github/workflows/clean-closed.yml
@@ -1,39 +0,0 @@
-#
-# clean-closed.yml
-# Remove obsolete labels when an Issue or PR is closed
-#
-
-name: Clean Closed
-
-on:
-  pull_request:
-    types: [closed]
-  issues:
-    types: [closed]
-
-jobs:
-  remove_label:
-    runs-on: ubuntu-latest
-
-    strategy:
-      matrix:
-        label:
-          - "S: Don't Merge"
-          - "S: Hold for 2.1"
-          - "S: Please Merge"
-          - "S: Please Test"
-          - "help wanted"
-          - "Needs: Discussion"
-          - "Needs: Documentation"
-          - "Needs: More Data"
-          - "Needs: Patch"
-          - "Needs: Testing"
-          - "Needs: Work"
-
-    steps:
-      - uses: actions/checkout@v2
-      - name: Remove Labels
-        uses: actions-ecosystem/action-remove-labels@v1
-        with:
-          github_token: ${{ github.token }}
-          labels: ${{ matrix.label }}
--- a/.github/workflows/close-stale.yml
+++ b/.github/workflows/close-stale.yml
@@ -20,9 +20,8 @@ jobs:
    - uses: actions/stale@v3
      with:
        repo-token: ${{ secrets.GITHUB_TOKEN }}
-        stale-issue-message: 'This issue has had no activity in the last 60 days. Please add a reply if you want to keep this issue active, otherwise it will be automatically closed within 10 days.'
-        days-before-stale: 60
-        days-before-close: 10
+        stale-issue-message: 'This issue is stale because it has been open 30 days with no activity. Remove stale label / comment or this will be closed in 5 days.'
+        days-before-stale: 30
+        days-before-close: 5
        stale-issue-label: 'stale-closing-soon'
-        exempt-all-assignees: true
-        exempt-issue-labels: 'Bug: Confirmed !,T: Feature Request,Needs: Discussion,Needs: Documentation,Needs: More Data,Needs: Patch,Needs: Work,Needs: Testing,help wanted,no-locking'
+        exempt-issue-labels: 'T: Feature Request'
--- a/.github/workflows/lock-closed.yml
+++ b/.github/workflows/lock-closed.yml
@@ -22,7 +22,7 @@ jobs:
        github-token: ${{ github.token }}
        process-only: 'issues'
        issue-lock-inactive-days: '60'
-        issue-exclude-created-before: '2017-07-01T00:00:00Z'
+        issue-exclude-created-before: ''
        issue-exclude-labels: 'no-locking'
        issue-lock-labels: ''
        issue-lock-comment: >
--- a/.github/workflows/test-builds.yml
+++ b/.github/workflows/test-builds.yml
@@ -36,74 +36,56 @@ jobs:
        # Base Environments

        - DUE
-        - DUE_archim
        - esp32
        - linux_native
        - mega2560
-        - at90usb1286_dfu
        - teensy31
        - teensy35
-        - teensy41
        - SAMD51_grandcentral_m4

        # Extended AVR Environments

-        - FYSETC_F6
+        - FYSETC_F6_13
        - mega1280
        - rambo
        - sanguino1284p
        - sanguino644p

-        # STM32F1 (Maple) Environments
+        # Extended STM32 Environments

        - STM32F103RC_btt
        - STM32F103RC_btt_USB
        - STM32F103RE_btt
        - STM32F103RE_btt_USB
        - STM32F103RC_fysetc
-        - STM32F103RC_meeb
        - jgaurora_a5s_a1
        - STM32F103VE_longer
-        - mks_robin
-        - mks_robin_lite
-        - mks_robin_pro
-        - STM32F103RET6_creality
-        - mks_robin_nano35
-
-        # STM32 (ST) Environments
-
-        - STM32F103RC_btt_stm32
        - STM32F407VE_black
-        - STM32F401VE_STEVAL
-        - BIGTREE_BTT002
        - BIGTREE_SKR_PRO
        - BIGTREE_GTR_V1_0
-        - mks_robin_stm32
+        - mks_robin
        - ARMED
        - FYSETC_S6
-        - STM32F070CB_malyan
-        - STM32F070RB_malyan
-        - malyan_M300
-        - FLYF407ZG
-        - rumba32
-        - LERDGEX
-        - LERDGEK
-        - mks_robin_nano35_stm32
-        - NUCLEO_F767ZI
-        - REMRAM_V1
-        - BTT_SKR_SE_BX
-        - chitu_f103

        # Put lengthy tests last

        - LPC1768
        - LPC1769

+        # STM32 with non-STM framework. both broken for now. they should use HAL_STM32 which is working.
+
+        #- STM32F4
+        #- STM32F7
+
        # Non-working environment tests
+
+        #- BIGTREE_BTT002
        #- at90usb1286_cdc
+        #- at90usb1286_dfu
        #- STM32F103CB_malyan
-        #- STM32F103RE
+        #- mks_robin_lite
        #- mks_robin_mini
+        #- mks_robin_nano

    steps:

@@ -115,7 +97,7 @@ jobs:

    - name: Install PlatformIO
      run: |
-        pip install -U https://github.com/platformio/platformio-core/archive/develop.zip
+        pip install -U https://github.com/platformio/platformio-core/archive/master.zip
        platformio update

    - name: Check out the PR
@@ -123,4 +105,9 @@ jobs:

    - name: Run ${{ matrix.test-platform }} Tests
      run: |
-        make tests-single-ci TEST_TARGET=${{ matrix.test-platform }}
+        # Inline tests script
+        [[ "$GITHUB_REPOSITORY" == "MarlinFirmware/Marlin" ]] || exit 0
+        chmod +x buildroot/bin/*
+        chmod +x buildroot/share/tests/*
+        export PATH=./buildroot/bin/:./buildroot/share/tests/:${PATH}
+        run_tests . ${{ matrix.test-platform }}
--- a/.gitignore
+++ b/.gitignore
@@ -1,6 +1,6 @@
 #
 # Marlin 3D Printer Firmware
-# Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
+# Copyright (c) 2023 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
 #
 # Based on Sprinter and grbl.
 # Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
@@ -21,32 +21,21 @@

 # Generated files
 _Version.h
-bdf2u8g
+bdf2u8g.exe
+genpages.exe
+marlin_config.json
+mczip.h
+language*.csv
+out-csv/
+out-language/
+*.gen
+*.sublime-workspace

-#
 # OS
-#
 applet/
-*.DS_Store
+.DS_Store

-#
-# Misc
-#
-*~
-*.orig
-*.rej
-*.bak
-*.idea
-*.s
-*.i
-*.ii
-*.swp
-tags
-
-#
-# C++
-#
-# Compiled Object files
+# Compiled C++ Object files
 *.slo
 *.lo
 *.o
@@ -77,10 +66,7 @@ tags
 *.out
 *.app

-#
-# C
-#
-# Object files
+# Compiled C Object files
 *.o
 *.ko
 *.obj
@@ -137,16 +123,22 @@ __vm/
 vc-fileutils.settings

 # Visual Studio Code
-.vscode
-.vscode/.browse.c_cpp.db*
-.vscode/c_cpp_properties.json
-.vscode/launch.json
-.vscode/*.db
+.vscode/*
+!.vscode/extensions.json

-# cmake
+# Simulation files
+imgui.ini
+eeprom.dat
+spi_flash.bin
+fs.img
+
+# CMake
+buildroot/share/cmake/*
 CMakeLists.txt
+!buildroot/share/cmake/CMakeLists.txt
 src/CMakeLists.txt
 CMakeListsPrivate.txt
+build/

 # CLion
 cmake-build-*
@@ -164,6 +156,15 @@ __pycache__
 # IOLogger logs
 *_log.csv

-# Simulation / Native
-eeprom.dat
-imgui.ini
+# Misc.
+*~
+*.orig
+*.rej
+*.bak
+*.idea
+*.i
+*.ii
+*.swp
+tags
+*.logs
+*.bak
--- a/9
+++ b/9
@@ -3,7 +3,7 @@
                    GNU GENERAL PUBLIC LICENSE
                       Version 3, 29 June 2007

- Copyright (c) 2007 Free Software Foundation, Inc. <https://www.fsf.org/>
+ Copyright (c) 2007 Free Software Foundation, Inc. <http://fsf.org/>
 Everyone is permitted to copy and distribute verbatim copies
 of this license document, but changing it is not allowed.

@@ -647,7 +647,7 @@ the "copyright" line and a pointer to where the full notice is found.
    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License
-    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.

 Also add information on how to contact you by electronic and paper mail.

@@ -666,11 +666,12 @@ might be different; for a GUI interface, you would use an "about box".
  You should also get your employer (if you work as a programmer) or school,
 if any, to sign a "copyright disclaimer" for the program, if necessary.
 For more information on this, and how to apply and follow the GNU GPL, see
-<https://www.gnu.org/licenses/>.
+<http://www.gnu.org/licenses/>.

  The GNU General Public License does not permit incorporating your program
 into proprietary programs.  If your program is a subroutine library, you
 may consider it more useful to permit linking proprietary applications with
 the library.  If this is what you want to do, use the GNU Lesser General
 Public License instead of this License.  But first, please read
-<https://www.gnu.org/licenses/why-not-lgpl.html>.
+<http://www.gnu.org/philosophy/why-not-lgpl.html>.
+
--- a/52
+++ b/52
@@ -1,52 +0,0 @@
-help:
-	@echo "Tasks for local development:"
-	@echo "* tests-single-ci:             Run a single test from inside the CI"
-	@echo "* tests-single-local:          Run a single test locally"
-	@echo "* tests-single-local-docker:   Run a single test locally, using docker-compose"
-	@echo "* tests-all-local:             Run all tests locally"
-	@echo "* tests-all-local-docker:      Run all tests locally, using docker-compose"
-	@echo "* setup-local-docker:          Setup local docker-compose"
-	@echo ""
-	@echo "Options for testing:"
-	@echo "  TEST_TARGET          Set when running tests-single-*, to select the"
-	@echo "                       test. If you set it to ALL it will run all "
-	@echo "                       tests, but some of them are broken: use "
-	@echo "                       tests-all-* instead to run only the ones that "
-	@echo "                       run on GitHub CI"
-	@echo "  ONLY_TEST            Limit tests to only those that contain this, or"
-	@echo "                       the index of the test (1-based)"
-	@echo "  VERBOSE_PLATFORMIO   If you want the full PIO output, set any value"
-	@echo "  GIT_RESET_HARD       Used by CI: reset all local changes. WARNING:"
-	@echo "                       THIS WILL UNDO ANY CHANGES YOU'VE MADE!"
-.PHONY: help
-
-tests-single-ci:
-	export GIT_RESET_HARD=true
-	$(MAKE) tests-single-local TEST_TARGET=$(TEST_TARGET)
-.PHONY: tests-single-ci
-
-tests-single-local:
-	@if ! test -n "$(TEST_TARGET)" ; then echo "***ERROR*** Set TEST_TARGET=<your-module> or use make tests-all-local" ; return 1; fi
-	export PATH=./buildroot/bin/:./buildroot/tests/:${PATH} \
-	  && export VERBOSE_PLATFORMIO=$(VERBOSE_PLATFORMIO) \
-	  && run_tests . $(TEST_TARGET) "$(ONLY_TEST)"
-.PHONY: tests-single-local
-
-tests-single-local-docker:
-	@if ! test -n "$(TEST_TARGET)" ; then echo "***ERROR*** Set TEST_TARGET=<your-module> or use make tests-all-local-docker" ; return 1; fi
-	docker-compose run --rm marlin $(MAKE) tests-single-local TEST_TARGET=$(TEST_TARGET) VERBOSE_PLATFORMIO=$(VERBOSE_PLATFORMIO) GIT_RESET_HARD=$(GIT_RESET_HARD) ONLY_TEST="$(ONLY_TEST)"
-.PHONY: tests-single-local-docker
-
-tests-all-local:
-	export PATH=./buildroot/bin/:./buildroot/tests/:${PATH} \
-	  && export VERBOSE_PLATFORMIO=$(VERBOSE_PLATFORMIO) \
-	  && for TEST_TARGET in $$(./get_test_targets.py) ; do echo "Running tests for $$TEST_TARGET" ; run_tests . $$TEST_TARGET ; done
-.PHONY: tests-all-local
-
-tests-all-local-docker:
-	docker-compose run --rm marlin $(MAKE) tests-all-local VERBOSE_PLATFORMIO=$(VERBOSE_PLATFORMIO) GIT_RESET_HARD=$(GIT_RESET_HARD)
-.PHONY: tests-all-local-docker
-
-setup-local-docker:
-	docker-compose build
-.PHONY: setup-local-docker
--- a/Marlin/Configuration.h
+++ b/Marlin/Configuration.h
--- a/Marlin/Configuration_adv.h
+++ b/Marlin/Configuration_adv.h
--- a/Marlin/Makefile
+++ b/Marlin/Makefile
@@ -14,7 +14,7 @@
 # Detailed instructions for using the makefile:
 #
 #  1. Modify the line containing "ARDUINO_INSTALL_DIR" to point to the directory that
-#     contains the Arduino installation (for example, under macOS, this
+#     contains the Arduino installation (for example, under Mac OS X, this
 #     might be /Applications/Arduino.app/Contents/Resources/Java).
 #
 #  2. Modify the line containing "UPLOAD_PORT" to refer to the filename
@@ -22,10 +22,8 @@
 #     (e.g. UPLOAD_PORT = /dev/tty.USB0).  If the exact name of this file
 #     changes, you can use * as a wild card (e.g. UPLOAD_PORT = /dev/tty.usb*).
 #
-#  3. Set the line containing "MCU" to match your board's processor. Set
-#     "PROG_MCU" as the AVR part name corresponding to "MCU". You can use the
-#     following command to get a list of correspondences: `avrdude -c alf -p x`
-#     Older boards are atmega8 based, newer ones like Arduino Mini, Bluetooth
+#  3. Set the line containing "MCU" to match your board's processor.
+#     Older one's are atmega8 based, newer ones like Arduino Mini, Bluetooth
 #     or Diecimila have the atmega168.  If you're using a LilyPad Arduino,
 #     change F_CPU to 8000000. If you are using Gen7 electronics, you
 #     probably need to use 20000000. Either way, you must regenerate
@@ -36,18 +34,18 @@
 #  5. Type "make upload", reset your Arduino board, and press enter to
 #     upload your program to the Arduino board.
 #
-# Note that all settings at the top of this file can be overridden from
+# Note that all settings at the top of this file can be overriden from
 # the command line with, for example, "make HARDWARE_MOTHERBOARD=71"
 #
 # To compile for RAMPS (atmega2560) with Arduino 1.6.9 at root/arduino you would use...
 #
 #   make ARDUINO_VERSION=10609 AVR_TOOLS_PATH=/root/arduino/hardware/tools/avr/bin/ \
-#   HARDWARE_MOTHERBOARD=1200 ARDUINO_INSTALL_DIR=/root/arduino
+#   HARDWARE_MOTHERBOARD=33 ARDUINO_INSTALL_DIR=/root/arduino
 #
 # To compile and upload simply add "upload" to the end of the line...
 #
 #   make ARDUINO_VERSION=10609 AVR_TOOLS_PATH=/root/arduino/hardware/tools/avr/bin/ \
-#   HARDWARE_MOTHERBOARD=1200 ARDUINO_INSTALL_DIR=/root/arduino upload
+#   HARDWARE_MOTHERBOARD=33 ARDUINO_INSTALL_DIR=/root/arduino upload
 #
 # If uploading doesn't work try adding the parameter "AVRDUDE_PROGRAMMER=wiring" or
 # start upload manually (using stk500) like so:
@@ -59,26 +57,7 @@
 #

 # This defines the board to compile for (see boards.h for your board's ID)
-HARDWARE_MOTHERBOARD ?= 1020
-
-ifeq ($(OS),Windows_NT)
-  # Windows
-  ARDUINO_INSTALL_DIR ?= ${HOME}/Arduino
-  ARDUINO_USER_DIR ?= ${HOME}/Arduino
-else
-  UNAME_S := $(shell uname -s)
-  ifeq ($(UNAME_S),Linux)
-    # Linux
-    ARDUINO_INSTALL_DIR ?= /usr/share/arduino
-    ARDUINO_USER_DIR ?= ${HOME}/Arduino
-  endif
-  ifeq ($(UNAME_S),Darwin)
-    # Darwin (macOS)
-    ARDUINO_INSTALL_DIR ?= /Applications/Arduino.app/Contents/Java
-    ARDUINO_USER_DIR ?= ${HOME}/Documents/Arduino
-    AVR_TOOLS_PATH ?= /Applications/Arduino.app/Contents/Java/hardware/tools/avr/bin/
-  endif
-endif
+HARDWARE_MOTHERBOARD ?= 11

 # Arduino source install directory, and version number
 # On most linuxes this will be /usr/share/arduino
@@ -88,44 +67,38 @@ ARDUINO_VERSION      ?= 106
 # The installed Libraries are in the User folder
 ARDUINO_USER_DIR ?= ${HOME}/Arduino

-# You can optionally set a path to the avr-gcc tools.
-# Requires a trailing slash. For example, /usr/local/avr-gcc/bin/
+# You can optionally set a path to the avr-gcc tools. Requires a trailing slash. (ex: /usr/local/avr-gcc/bin)
 AVR_TOOLS_PATH ?=

-# Programmer configuration
+#Programmer configuration
 UPLOAD_RATE        ?= 57600
 AVRDUDE_PROGRAMMER ?= arduino
-# On most linuxes this will be /dev/ttyACM0 or /dev/ttyACM1
+# on most linuxes this will be /dev/ttyACM0 or /dev/ttyACM1
 UPLOAD_PORT        ?= /dev/ttyUSB0

-# Directory used to build files in, contains all the build files, from object
-# files to the final hex file on linux it is best to put an absolute path
-# like /home/username/tmp .
+#Directory used to build files in, contains all the build files, from object files to the final hex file
+#on linux it is best to put an absolute path like /home/username/tmp .
 BUILD_DIR          ?= applet

 # This defines whether Liquid_TWI2 support will be built
 LIQUID_TWI2        ?= 0

-# This defines if Wire is needed
+# this defines if Wire is needed
 WIRE               ?= 0

-# This defines if Tone is needed (i.e SPEAKER is defined in Configuration.h)
-# Disabling this (and SPEAKER) saves approximatively 350 bytes of memory.
-TONE               ?= 1
+# this defines if U8GLIB is needed (may require RELOC_WORKAROUND)
+U8GLIB             ?= 1

-# This defines if U8GLIB is needed (may require RELOC_WORKAROUND)
-U8GLIB             ?= 0
+# this defines whether to include the Trinamic TMCStepper library
+TMC                ?= 1

-# This defines whether to include the Trinamic TMCStepper library
-TMC                ?= 0
-
-# This defines whether to include the AdaFruit NeoPixel library
+# this defines whether to include the AdaFruit NeoPixel library
 NEOPIXEL           ?= 0

 ############
 # Try to automatically determine whether RELOC_WORKAROUND is needed based
 # on GCC versions:
-#   https://www.avrfreaks.net/comment/1789106#comment-1789106
+#   http://www.avrfreaks.net/comment/1789106#comment-1789106

 CC_MAJ:=$(shell $(CC) -dM -E - < /dev/null | grep __GNUC__ | cut -f3 -d\ )
 CC_MIN:=$(shell $(CC) -dM -E - < /dev/null | grep __GNUC_MINOR__ | cut -f3 -d\ )
@@ -197,115 +170,105 @@ else ifeq ($(HARDWARE_MOTHERBOARD),1100)
 else ifeq ($(HARDWARE_MOTHERBOARD),1101)
 # Velleman K8400 Controller (derived from 3Drag Controller)
 else ifeq ($(HARDWARE_MOTHERBOARD),1102)
-# Velleman K8600 Controller (Vertex Nano)
-else ifeq ($(HARDWARE_MOTHERBOARD),1103)
-# Velleman K8800 Controller (Vertex Delta)
-else ifeq ($(HARDWARE_MOTHERBOARD),1104)
 # 2PrintBeta BAM&DICE with STK drivers
-else ifeq ($(HARDWARE_MOTHERBOARD),1105)
+else ifeq ($(HARDWARE_MOTHERBOARD),1103)
 # 2PrintBeta BAM&DICE Due with STK drivers
-else ifeq ($(HARDWARE_MOTHERBOARD),1106)
+else ifeq ($(HARDWARE_MOTHERBOARD),1104)
 # MKS BASE v1.0
-else ifeq ($(HARDWARE_MOTHERBOARD),1107)
+else ifeq ($(HARDWARE_MOTHERBOARD),1105)
 # MKS v1.4 with A4982 stepper drivers
-else ifeq ($(HARDWARE_MOTHERBOARD),1108)
+else ifeq ($(HARDWARE_MOTHERBOARD),1106)
 # MKS v1.5 with Allegro A4982 stepper drivers
-else ifeq ($(HARDWARE_MOTHERBOARD),1109)
+else ifeq ($(HARDWARE_MOTHERBOARD),1107)
 # MKS v1.6 with Allegro A4982 stepper drivers
-else ifeq ($(HARDWARE_MOTHERBOARD),1110)
+else ifeq ($(HARDWARE_MOTHERBOARD),1108)
+
 # MKS BASE 1.0 with Heroic HR4982 stepper drivers
-else ifeq ($(HARDWARE_MOTHERBOARD),1111)
+else ifeq ($(HARDWARE_MOTHERBOARD),1109)
 # MKS GEN v1.3 or 1.4
-else ifeq ($(HARDWARE_MOTHERBOARD),1112)
+else ifeq ($(HARDWARE_MOTHERBOARD),1110)
 # MKS GEN L
-else ifeq ($(HARDWARE_MOTHERBOARD),1113)
-# zrib V2.0 control board (Chinese RAMPS replica)
-else ifeq ($(HARDWARE_MOTHERBOARD),1114)
+else ifeq ($(HARDWARE_MOTHERBOARD),1111)
+# zrib V2.0 control board (Chinese knock off RAMPS replica)
+else ifeq ($(HARDWARE_MOTHERBOARD),1112)
 # BigTreeTech or BIQU KFB2.0
-else ifeq ($(HARDWARE_MOTHERBOARD),1115)
+else ifeq ($(HARDWARE_MOTHERBOARD),1113)
 # Felix 2.0+ Electronics Board (RAMPS like)
-else ifeq ($(HARDWARE_MOTHERBOARD),1116)
+else ifeq ($(HARDWARE_MOTHERBOARD),1114)
 # Invent-A-Part RigidBoard
-else ifeq ($(HARDWARE_MOTHERBOARD),1117)
+else ifeq ($(HARDWARE_MOTHERBOARD),1115)
 # Invent-A-Part RigidBoard V2
-else ifeq ($(HARDWARE_MOTHERBOARD),1118)
+else ifeq ($(HARDWARE_MOTHERBOARD),1116)
 # Sainsmart 2-in-1 board
-else ifeq ($(HARDWARE_MOTHERBOARD),1119)
+else ifeq ($(HARDWARE_MOTHERBOARD),1117)
 # Ultimaker
-else ifeq ($(HARDWARE_MOTHERBOARD),1120)
+else ifeq ($(HARDWARE_MOTHERBOARD),1118)
 # Ultimaker (Older electronics. Pre 1.5.4. This is rare)
-else ifeq ($(HARDWARE_MOTHERBOARD),1121)
-  MCU              ?= atmega1280
-  PROG_MCU         ?= m1280
+else ifeq ($(HARDWARE_MOTHERBOARD),1119)
+  MCU ?= atmega1280

 # Azteeg X3
-else ifeq ($(HARDWARE_MOTHERBOARD),1122)
+else ifeq ($(HARDWARE_MOTHERBOARD),1120)
 # Azteeg X3 Pro
-else ifeq ($(HARDWARE_MOTHERBOARD),1123)
+else ifeq ($(HARDWARE_MOTHERBOARD),1121)
 # Ultimainboard 2.x (Uses TEMP_SENSOR 20)
-else ifeq ($(HARDWARE_MOTHERBOARD),1124)
+else ifeq ($(HARDWARE_MOTHERBOARD),1122)
 # Rumba
-else ifeq ($(HARDWARE_MOTHERBOARD),1125)
+else ifeq ($(HARDWARE_MOTHERBOARD),1123)
 # Raise3D Rumba
-else ifeq ($(HARDWARE_MOTHERBOARD),1126)
+else ifeq ($(HARDWARE_MOTHERBOARD),1124)
 # Rapide Lite RL200 Rumba
-else ifeq ($(HARDWARE_MOTHERBOARD),1127)
+else ifeq ($(HARDWARE_MOTHERBOARD),1125)
 # Formbot T-Rex 2 Plus
-else ifeq ($(HARDWARE_MOTHERBOARD),1128)
+else ifeq ($(HARDWARE_MOTHERBOARD),1126)
 # Formbot T-Rex 3
-else ifeq ($(HARDWARE_MOTHERBOARD),1129)
+else ifeq ($(HARDWARE_MOTHERBOARD),1127)
 # Formbot Raptor
-else ifeq ($(HARDWARE_MOTHERBOARD),1130)
+else ifeq ($(HARDWARE_MOTHERBOARD),1128)
 # Formbot Raptor 2
-else ifeq ($(HARDWARE_MOTHERBOARD),1131)
+else ifeq ($(HARDWARE_MOTHERBOARD),1129)
 # bq ZUM Mega 3D
-else ifeq ($(HARDWARE_MOTHERBOARD),1132)
+else ifeq ($(HARDWARE_MOTHERBOARD),1130)
 # MakeBoard Mini v2.1.2 is a control board sold by MicroMake
-else ifeq ($(HARDWARE_MOTHERBOARD),1133)
+else ifeq ($(HARDWARE_MOTHERBOARD),1131)
 # TriGorilla Anycubic version 1.3 based on RAMPS EFB
-else ifeq ($(HARDWARE_MOTHERBOARD),1134)
+else ifeq ($(HARDWARE_MOTHERBOARD),1132)
 # TriGorilla Anycubic version 1.4 based on RAMPS EFB
-else ifeq ($(HARDWARE_MOTHERBOARD),1135)
+else ifeq ($(HARDWARE_MOTHERBOARD),1133)
 # TriGorilla Anycubic version 1.4 Rev 1.1
-else ifeq ($(HARDWARE_MOTHERBOARD),1136)
+else ifeq ($(HARDWARE_MOTHERBOARD),1134)
 # Creality: Ender-4, CR-8
-else ifeq ($(HARDWARE_MOTHERBOARD),1137)
+else ifeq ($(HARDWARE_MOTHERBOARD),1135)
 # Creality: CR10S, CR20, CR-X
-else ifeq ($(HARDWARE_MOTHERBOARD),1138)
+else ifeq ($(HARDWARE_MOTHERBOARD),1136)
 # Dagoma F5
-else ifeq ($(HARDWARE_MOTHERBOARD),1139)
+else ifeq ($(HARDWARE_MOTHERBOARD),1137)
 # FYSETC F6 1.3
-else ifeq ($(HARDWARE_MOTHERBOARD),1140)
+else ifeq ($(HARDWARE_MOTHERBOARD),1138)
 # FYSETC F6 1.5
-else ifeq ($(HARDWARE_MOTHERBOARD),1141)
+else ifeq ($(HARDWARE_MOTHERBOARD),1139)
 # Duplicator i3 Plus
-else ifeq ($(HARDWARE_MOTHERBOARD),1142)
+else ifeq ($(HARDWARE_MOTHERBOARD),1140)
 # VORON
-else ifeq ($(HARDWARE_MOTHERBOARD),1143)
+else ifeq ($(HARDWARE_MOTHERBOARD),1141)
 # TRONXY V3 1.0
-else ifeq ($(HARDWARE_MOTHERBOARD),1144)
+else ifeq ($(HARDWARE_MOTHERBOARD),1142)
 # Z-Bolt X Series
-else ifeq ($(HARDWARE_MOTHERBOARD),1145)
+else ifeq ($(HARDWARE_MOTHERBOARD),1143)
 # TT OSCAR
-else ifeq ($(HARDWARE_MOTHERBOARD),1146)
+else ifeq ($(HARDWARE_MOTHERBOARD),1144)
 # Overlord/Overlord Pro
-else ifeq ($(HARDWARE_MOTHERBOARD),1147)
+else ifeq ($(HARDWARE_MOTHERBOARD),1145)
 # ADIMLab Gantry v1
-else ifeq ($(HARDWARE_MOTHERBOARD),1148)
+else ifeq ($(HARDWARE_MOTHERBOARD),1146)
 # ADIMLab Gantry v2
-else ifeq ($(HARDWARE_MOTHERBOARD),1149)
+else ifeq ($(HARDWARE_MOTHERBOARD),1147)
 # BIQU Tango V1
-else ifeq ($(HARDWARE_MOTHERBOARD),1150)
+else ifeq ($(HARDWARE_MOTHERBOARD),1148)
 # MKS GEN L V2
-else ifeq ($(HARDWARE_MOTHERBOARD),1151)
-# MKS GEN L V2.1
-else ifeq ($(HARDWARE_MOTHERBOARD),1152)
+else ifeq ($(HARDWARE_MOTHERBOARD),1149)
 # Copymaster 3D
-else ifeq ($(HARDWARE_MOTHERBOARD),1153)
-# Ortur 4
-else ifeq ($(HARDWARE_MOTHERBOARD),1154)
-# Tenlog D3 Hero
-else ifeq ($(HARDWARE_MOTHERBOARD),1155)
+else ifeq ($(HARDWARE_MOTHERBOARD),1150)

 #
 # RAMBo and derivatives
@@ -323,8 +286,6 @@ else ifeq ($(HARDWARE_MOTHERBOARD),1203)
 else ifeq ($(HARDWARE_MOTHERBOARD),1204)
 # abee Scoovo X9H
 else ifeq ($(HARDWARE_MOTHERBOARD),1205)
-# Rambo ThinkerV2
-else ifeq ($(HARDWARE_MOTHERBOARD),1206)

 #
 # Other ATmega1280, ATmega2560
@@ -380,11 +341,9 @@ else ifeq ($(HARDWARE_MOTHERBOARD),1320)
 # Minitronics v1.0/1.1
 else ifeq ($(HARDWARE_MOTHERBOARD),1400)
  MCU              ?= atmega1281
-  PROG_MCU         ?= m1281
 # Silvergate v1.0
 else ifeq ($(HARDWARE_MOTHERBOARD),1401)
  MCU              ?= atmega1281
-  PROG_MCU         ?= m1281

 #
 # Sanguinololu and Derivatives - ATmega644P, ATmega1284P
@@ -394,57 +353,42 @@ else ifeq ($(HARDWARE_MOTHERBOARD),1401)
 else ifeq ($(HARDWARE_MOTHERBOARD),1500)
  HARDWARE_VARIANT ?= Sanguino
  MCU              ?= atmega644p
-  PROG_MCU         ?= m644p
 # Sanguinololu 1.2 and above
 else ifeq ($(HARDWARE_MOTHERBOARD),1501)
  HARDWARE_VARIANT ?= Sanguino
  MCU              ?= atmega644p
-  PROG_MCU         ?= m644p
 # Melzi
 else ifeq ($(HARDWARE_MOTHERBOARD),1502)
  HARDWARE_VARIANT ?= Sanguino
  MCU              ?= atmega644p
-  PROG_MCU         ?= m644p
-# Melzi V2.0
+# Melzi with ATmega1284 (MaKr3d version)
 else ifeq ($(HARDWARE_MOTHERBOARD),1503)
  HARDWARE_VARIANT ?= Sanguino
  MCU              ?= atmega1284p
-  PROG_MCU         ?= m1284p
-# Melzi with ATmega1284 (MaKr3d version)
+# Melzi Creality3D board (for CR-10 etc)
 else ifeq ($(HARDWARE_MOTHERBOARD),1504)
  HARDWARE_VARIANT ?= Sanguino
  MCU              ?= atmega1284p
-  PROG_MCU         ?= m1284p
-# Melzi Creality3D board (for CR-10 etc)
+# Melzi Malyan M150 board
 else ifeq ($(HARDWARE_MOTHERBOARD),1505)
  HARDWARE_VARIANT ?= Sanguino
  MCU              ?= atmega1284p
-  PROG_MCU         ?= m1284p
-# Melzi Malyan M150 board
+# Tronxy X5S
 else ifeq ($(HARDWARE_MOTHERBOARD),1506)
  HARDWARE_VARIANT ?= Sanguino
  MCU              ?= atmega1284p
-  PROG_MCU         ?= m1284p
-# Tronxy X5S
+# STB V1.1
 else ifeq ($(HARDWARE_MOTHERBOARD),1507)
  HARDWARE_VARIANT ?= Sanguino
  MCU              ?= atmega1284p
-  PROG_MCU         ?= m1284p
-# STB V1.1
+# Azteeg X1
 else ifeq ($(HARDWARE_MOTHERBOARD),1508)
  HARDWARE_VARIANT ?= Sanguino
  MCU              ?= atmega1284p
-  PROG_MCU         ?= m1284p
-# Azteeg X1
+# Anet 1.0 (Melzi clone)
 else ifeq ($(HARDWARE_MOTHERBOARD),1509)
  HARDWARE_VARIANT ?= Sanguino
  MCU              ?= atmega1284p
-  PROG_MCU         ?= m1284p
-# Anet 1.0 (Melzi clone)
-else ifeq ($(HARDWARE_MOTHERBOARD),1510)
-  HARDWARE_VARIANT ?= Sanguino
-  MCU              ?= atmega1284p
-  PROG_MCU         ?= m1284p

 #
 # Other ATmega644P, ATmega644, ATmega1284P
@@ -454,61 +398,50 @@ else ifeq ($(HARDWARE_MOTHERBOARD),1510)
 else ifeq ($(HARDWARE_MOTHERBOARD),1600)
  HARDWARE_VARIANT ?= Sanguino
  MCU              ?= atmega644p
-  PROG_MCU         ?= m644p
 # Gen3+
 else ifeq ($(HARDWARE_MOTHERBOARD),1601)
  HARDWARE_VARIANT ?= Sanguino
  MCU              ?= atmega644p
-  PROG_MCU         ?= m644p
 # Gen6
 else ifeq ($(HARDWARE_MOTHERBOARD),1602)
  HARDWARE_VARIANT ?= Gen6
  MCU              ?= atmega644p
-  PROG_MCU         ?= m644p
 # Gen6 deluxe
 else ifeq ($(HARDWARE_MOTHERBOARD),1603)
  HARDWARE_VARIANT ?= Gen6
  MCU              ?= atmega644p
-  PROG_MCU         ?= m644p
 # Gen7 custom (Alfons3 Version)
 else ifeq ($(HARDWARE_MOTHERBOARD),1604)
  HARDWARE_VARIANT ?= Gen7
  MCU              ?= atmega644
-  PROG_MCU         ?= m644
  F_CPU            ?= 20000000
 # Gen7 v1.1, v1.2
 else ifeq ($(HARDWARE_MOTHERBOARD),1605)
  HARDWARE_VARIANT ?= Gen7
  MCU              ?= atmega644p
-  PROG_MCU         ?= m644p
  F_CPU            ?= 20000000
 # Gen7 v1.3
 else ifeq ($(HARDWARE_MOTHERBOARD),1606)
  HARDWARE_VARIANT ?= Gen7
  MCU              ?= atmega644p
-  PROG_MCU         ?= m644p
  F_CPU            ?= 20000000
 # Gen7 v1.4
 else ifeq ($(HARDWARE_MOTHERBOARD),1607)
  HARDWARE_VARIANT ?= Gen7
  MCU              ?= atmega1284p
-  PROG_MCU         ?= m1284p
  F_CPU            ?= 20000000
 # Alpha OMCA board
 else ifeq ($(HARDWARE_MOTHERBOARD),1608)
  HARDWARE_VARIANT ?= SanguinoA
  MCU              ?= atmega644
-  PROG_MCU         ?= m644
 # Final OMCA board
 else ifeq ($(HARDWARE_MOTHERBOARD),1609)
  HARDWARE_VARIANT ?= Sanguino
  MCU              ?= atmega644p
-  PROG_MCU         ?= m644p
 # Sethi 3D_1
 else ifeq ($(HARDWARE_MOTHERBOARD),1610)
  HARDWARE_VARIANT ?= Sanguino
  MCU              ?= atmega644p
-  PROG_MCU         ?= m644p

 #
 # Teensyduino - AT90USB1286, AT90USB1286P
@@ -518,60 +451,51 @@ else ifeq ($(HARDWARE_MOTHERBOARD),1610)
 else ifeq ($(HARDWARE_MOTHERBOARD),1700)
  HARDWARE_VARIANT ?= Teensy
  MCU              ?= at90usb1286
-  PROG_MCU         ?= usb1286
 # Printrboard (AT90USB1286)
 else ifeq ($(HARDWARE_MOTHERBOARD),1701)
  HARDWARE_VARIANT ?= Teensy
  MCU              ?= at90usb1286
-  PROG_MCU         ?= usb1286
 # Printrboard Revision F (AT90USB1286)
 else ifeq ($(HARDWARE_MOTHERBOARD),1702)
  HARDWARE_VARIANT ?= Teensy
  MCU              ?= at90usb1286
-  PROG_MCU         ?= usb1286
 # Brainwave (AT90USB646)
 else ifeq ($(HARDWARE_MOTHERBOARD),1703)
  HARDWARE_VARIANT ?= Teensy
  MCU              ?= at90usb646
-  PROG_MCU         ?= usb646
 # Brainwave Pro (AT90USB1286)
 else ifeq ($(HARDWARE_MOTHERBOARD),1704)
  HARDWARE_VARIANT ?= Teensy
  MCU              ?= at90usb1286
-  PROG_MCU         ?= usb1286
 # SAV Mk-I (AT90USB1286)
 else ifeq ($(HARDWARE_MOTHERBOARD),1705)
  HARDWARE_VARIANT ?= Teensy
  MCU              ?= at90usb1286
-  PROG_MCU         ?= usb1286
 # Teensy++2.0 (AT90USB1286)
 else ifeq ($(HARDWARE_MOTHERBOARD),1706)
  HARDWARE_VARIANT ?= Teensy
  MCU              ?= at90usb1286
-  PROG_MCU         ?= usb1286
 # 5DPrint D8 Driver Board
 else ifeq ($(HARDWARE_MOTHERBOARD),1707)
  HARDWARE_VARIANT ?= Teensy
  MCU              ?= at90usb1286
-  PROG_MCU         ?= usb1286

 # UltiMachine Archim1 (with DRV8825 drivers)
 else ifeq ($(HARDWARE_MOTHERBOARD),3023)
  HARDWARE_VARIANT ?= archim
  MCPU              = cortex-m3
-  F_CPU             = 84000000
+  F_CPU             = 84000000L
  IS_MCU            = 0
 # UltiMachine Archim2 (with TMC2130 drivers)
 else ifeq ($(HARDWARE_MOTHERBOARD),3024)
  HARDWARE_VARIANT ?= archim
  MCPU              = cortex-m3
-  F_CPU             = 84000000
+  F_CPU             = 84000000L
  IS_MCU            = 0
 endif

 # Be sure to regenerate speed_lookuptable.h with create_speed_lookuptable.py
 # if you are setting this to something other than 16MHz
-# Do not put the UL suffix, it's done later on.
 # Set to 16Mhz if not yet set.
 F_CPU ?= 16000000

@@ -581,8 +505,7 @@ IS_MCU ?= 1
 ifeq ($(IS_MCU),1)
  # Set to arduino, ATmega2560 if not yet set.
  HARDWARE_VARIANT ?= arduino
-  MCU              ?= atmega2560
-  PROG_MCU         ?= m2560
+  MCU ?= atmega2560

  TOOL_PREFIX = avr
  MCU_FLAGS   = -mmcu=$(MCU)
@@ -613,36 +536,27 @@ VPATH += $(BUILD_DIR)
 VPATH += $(HARDWARE_SRC)

 ifeq ($(HARDWARE_VARIANT), $(filter $(HARDWARE_VARIANT),arduino Teensy Sanguino))
-  # Old libraries (avr-core 1.6.21 < / Arduino < 1.6.8)
-  VPATH += $(ARDUINO_INSTALL_DIR)/hardware/arduino/avr/libraries/SPI
-  # New libraries (avr-core >= 1.6.21 / Arduino >= 1.6.8)
-  VPATH += $(ARDUINO_INSTALL_DIR)/hardware/arduino/avr/libraries/SPI/src
+VPATH += $(ARDUINO_INSTALL_DIR)/hardware/marlin/avr/libraries/LiquidCrystal/src
+VPATH += $(ARDUINO_INSTALL_DIR)/hardware/marlin/avr/libraries/SPI
 endif

 ifeq ($(IS_MCU),1)
  VPATH += $(ARDUINO_INSTALL_DIR)/hardware/arduino/avr/cores/arduino

-  # Old libraries (avr-core 1.6.21 < / Arduino < 1.6.8)
  VPATH += $(ARDUINO_INSTALL_DIR)/hardware/arduino/avr/libraries/SPI
-  VPATH += $(ARDUINO_INSTALL_DIR)/hardware/arduino/avr/libraries/SoftwareSerial
-  # New libraries (avr-core >= 1.6.21 / Arduino >= 1.6.8)
  VPATH += $(ARDUINO_INSTALL_DIR)/hardware/arduino/avr/libraries/SPI/src
  VPATH += $(ARDUINO_INSTALL_DIR)/hardware/arduino/avr/libraries/SoftwareSerial/src
 endif

 VPATH += $(ARDUINO_INSTALL_DIR)/libraries/LiquidCrystal/src
-
 ifeq ($(LIQUID_TWI2), 1)
-  WIRE   = 1
-  VPATH += $(ARDUINO_INSTALL_DIR)/libraries/LiquidTWI2
+VPATH += $(ARDUINO_INSTALL_DIR)/libraries/Wire
+VPATH += $(ARDUINO_INSTALL_DIR)/libraries/Wire/utility
+VPATH += $(ARDUINO_INSTALL_DIR)/libraries/LiquidTWI2
 endif
 ifeq ($(WIRE), 1)
-  # Old libraries (avr-core 1.6.21 / Arduino < 1.6.8)
-  VPATH += $(ARDUINO_INSTALL_DIR)/hardware/arduino/avr/libraries/Wire
-  VPATH += $(ARDUINO_INSTALL_DIR)/hardware/arduino/avr/libraries/Wire/utility
-  # New libraries (avr-core >= 1.6.21 / Arduino >= 1.6.8)
-  VPATH += $(ARDUINO_INSTALL_DIR)/hardware/arduino/avr/libraries/Wire/src
-  VPATH += $(ARDUINO_INSTALL_DIR)/hardware/arduino/avr/libraries/Wire/src/utility
+VPATH += $(ARDUINO_INSTALL_DIR)/libraries/Wire
+VPATH += $(ARDUINO_INSTALL_DIR)/libraries/Wire/utility
 endif
 ifeq ($(NEOPIXEL), 1)
 VPATH += $(ARDUINO_INSTALL_DIR)/libraries/Adafruit_NeoPixel
@@ -714,23 +628,13 @@ ifeq ($(WIRE), 1)
  LIB_CXXSRC += Wire.cpp
 endif

-ifeq ($(TONE), 1)
-  LIB_CXXSRC += Tone.cpp
-endif
-
 ifeq ($(U8GLIB), 1)
  LIB_CXXSRC += U8glib.cpp
-  LIB_SRC += u8g_ll_api.c u8g_bitmap.c u8g_clip.c u8g_com_null.c u8g_delay.c \
-    u8g_page.c u8g_pb.c u8g_pb16h1.c u8g_rect.c u8g_state.c u8g_font.c \
-    u8g_font_6x13.c u8g_font_04b_03.c u8g_font_5x8.c
+  LIB_SRC += u8g_ll_api.c u8g_bitmap.c u8g_clip.c u8g_com_null.c u8g_delay.c u8g_page.c u8g_pb.c u8g_pb16h1.c u8g_rect.c u8g_state.c u8g_font.c u8g_font_6x13.c u8g_font_04b_03.c u8g_font_5x8.c
 endif

 ifeq ($(TMC), 1)
-  LIB_CXXSRC += TMCStepper.cpp COOLCONF.cpp DRV_STATUS.cpp IHOLD_IRUN.cpp \
-    CHOPCONF.cpp GCONF.cpp PWMCONF.cpp DRV_CONF.cpp DRVCONF.cpp DRVCTRL.cpp \
-    DRVSTATUS.cpp ENCMODE.cpp RAMP_STAT.cpp SGCSCONF.cpp SHORT_CONF.cpp \
-    SMARTEN.cpp SW_MODE.cpp SW_SPI.cpp TMC2130Stepper.cpp TMC2208Stepper.cpp \
-    TMC2209Stepper.cpp TMC2660Stepper.cpp TMC5130Stepper.cpp TMC5160Stepper.cpp
+  LIB_CXXSRC += TMCStepper.cpp COOLCONF.cpp DRV_STATUS.cpp IHOLD_IRUN.cpp CHOPCONF.cpp GCONF.cpp PWMCONF.cpp DRV_CONF.cpp DRVCONF.cpp DRVCTRL.cpp DRVSTATUS.cpp ENCMODE.cpp RAMP_STAT.cpp SGCSCONF.cpp SHORT_CONF.cpp SMARTEN.cpp SW_MODE.cpp SW_SPI.cpp TMC2130Stepper.cpp TMC2208Stepper.cpp TMC2209Stepper.cpp TMC2660Stepper.cpp TMC5130Stepper.cpp TMC5160Stepper.cpp
 endif

 ifeq ($(RELOC_WORKAROUND), 1)
@@ -772,23 +676,17 @@ REMOVE = rm -f
 MV = mv -f

 # Place -D or -U options here
-CDEFS    = -DF_CPU=$(F_CPU)UL ${addprefix -D , $(DEFINES)} -DARDUINO=$(ARDUINO_VERSION)
+CDEFS    = -DF_CPU=$(F_CPU) ${addprefix -D , $(DEFINES)} -DARDUINO=$(ARDUINO_VERSION)
 CXXDEFS  = $(CDEFS)

 ifeq ($(HARDWARE_VARIANT), Teensy)
-  CDEFS      += -DUSB_SERIAL
+  CDEFS  += -DUSB_SERIAL
  LIB_SRC    += usb.c pins_teensy.c
  LIB_CXXSRC += usb_api.cpp

 else ifeq ($(HARDWARE_VARIANT), archim)
-  CDEFS      += -DARDUINO_SAM_ARCHIM -DARDUINO_ARCH_SAM -D__SAM3X8E__
-  CDEFS      += -DUSB_VID=0x27B1 -DUSB_PID=0x0001 -DUSBCON
-  CDEFS      += '-DUSB_MANUFACTURER="UltiMachine"' '-DUSB_PRODUCT_STRING="Archim"'
-
-  LIB_CXXSRC += variant.cpp IPAddress.cpp Reset.cpp RingBuffer.cpp Stream.cpp \
-    UARTClass.cpp  USARTClass.cpp abi.cpp new.cpp watchdog.cpp CDC.cpp \
-    PluggableUSB.cpp USBCore.cpp
-
+  CDEFS      += -DARDUINO_SAM_ARCHIM -DARDUINO_ARCH_SAM -D__SAM3X8E__ -DUSB_VID=0x27b1 -DUSB_PID=0x0001 -DUSBCON '-DUSB_MANUFACTURER="UltiMachine"' '-DUSB_PRODUCT="Archim"'
+  LIB_CXXSRC += variant.cpp IPAddress.cpp Reset.cpp RingBuffer.cpp Stream.cpp UARTClass.cpp  USARTClass.cpp abi.cpp new.cpp watchdog.cpp CDC.cpp PluggableUSB.cpp  USBCore.cpp
  LIB_SRC    += cortex_handlers.c iar_calls_sam3.c syscalls_sam3.c dtostrf.c itoa.c

  ifeq ($(U8GLIB), 1)
@@ -814,20 +712,16 @@ CTUNING = -fsigned-char -funsigned-bitfields -fno-exceptions \
 ifneq ($(HARDWARE_MOTHERBOARD),)
  CTUNING += -DMOTHERBOARD=${HARDWARE_MOTHERBOARD}
 endif
-
 #CEXTRA = -Wa,-adhlns=$(<:.c=.lst)
 CXXEXTRA = -fno-use-cxa-atexit -fno-threadsafe-statics -fno-rtti
 CFLAGS := $(CDEBUG) $(CDEFS) $(CINCS) -O$(OPT) $(CEXTRA)   $(CTUNING) $(CSTANDARD)
 CXXFLAGS :=         $(CDEFS) $(CINCS) -O$(OPT) $(CXXEXTRA) $(CTUNING) $(CXXSTANDARD)
 ASFLAGS :=          $(CDEFS)
 #ASFLAGS = -Wa,-adhlns=$(<:.S=.lst),-gstabs
-
 ifeq ($(HARDWARE_VARIANT), archim)
  LD_PREFIX = -Wl,--gc-sections,-Map,Marlin.ino.map,--cref,--check-sections,--entry=Reset_Handler,--unresolved-symbols=report-all,--warn-common,--warn-section-align
  LD_SUFFIX = $(LDLIBS)
-
-  LDFLAGS   = -lm -T$(LDSCRIPT) -u _sbrk -u link -u _close -u _fstat -u _isatty
-  LDFLAGS  += -u _lseek -u _read -u _write -u _exit -u kill -u _getpid
+  LDFLAGS   = -lm -T$(LDSCRIPT) -u _sbrk -u link -u _close -u _fstat -u _isatty -u _lseek -u _read -u _write -u _exit -u kill -u _getpid
 else
  LD_PREFIX = -Wl,--gc-sections,--relax
  LDFLAGS   = -lm
@@ -843,7 +737,7 @@ else
  AVRDUDE_CONF = $(ARDUINO_INSTALL_DIR)/hardware/tools/avr/etc/avrdude.conf
 endif
 AVRDUDE_FLAGS = -D -C$(AVRDUDE_CONF) \
-  -p$(PROG_MCU) -P$(AVRDUDE_PORT) -c$(AVRDUDE_PROGRAMMER) \
+  -p$(MCU) -P$(AVRDUDE_PORT) -c$(AVRDUDE_PROGRAMMER) \
  -b$(UPLOAD_RATE)

 # Since Marlin 2.0, the source files may be distributed into several
@@ -944,7 +838,7 @@ extcoff: $(TARGET).elf

 .elf.eep:
 	-$(OBJCOPY) -j .eeprom --set-section-flags=.eeprom="alloc,load" \
-	  --change-section-lma .eeprom=0 -O $(FORMAT) $< $@
+    --change-section-lma .eeprom=0 -O $(FORMAT) $< $@

 # Create extended listing file from ELF output file.
 .elf.lss:
@@ -958,7 +852,7 @@ extcoff: $(TARGET).elf

 $(BUILD_DIR)/$(TARGET).elf: $(OBJ) Configuration.h
 	$(Pecho) "  CXX   $@"
-	$P $(CXX) $(LD_PREFIX) $(ALL_CXXFLAGS) -o $@ -L. $(OBJ) $(LDFLAGS) $(LD_SUFFIX)
+	$P $(CC) $(LD_PREFIX) $(ALL_CXXFLAGS) -o $@ -L. $(OBJ) $(LDFLAGS) $(LD_SUFFIX)

 # Object files that were found in "src" will be stored in $(BUILD_DIR)
 # in directories that mirror the structure of "src"
@@ -993,5 +887,5 @@ clean:

 .PHONY: all build elf hex eep lss sym program coff extcoff clean depend sizebefore sizeafter

-# Automatically include the dependency files created by gcc
+# Automaticaly include the dependency files created by gcc
 -include ${patsubst %.o, %.d, ${OBJ}}
--- a/Marlin/Marlin.ino
+++ b/Marlin/Marlin.ino
@@ -1,8 +1,9 @@
-/*==============================================================================
+/*
+================================================================================

  Marlin Firmware

-  (c) 2011-2020 MarlinFirmware
+  (c) 2011-2019 MarlinFirmware
  Portions of Marlin are (c) by their respective authors.
  All code complies with GPLv2 and/or GPLv3

@@ -11,33 +12,30 @@
 Greetings! Thank you for choosing Marlin 2 as your 3D printer firmware.

 To configure Marlin you must edit Configuration.h and Configuration_adv.h
-located in the root 'Marlin' folder. Check our Configurations repository to
-see if there's a more suitable starting-point for your specific hardware.
+located in the root 'Marlin' folder. Check the config/examples folder to see if
+there's a more suitable starting-point for your specific hardware.

 Before diving in, we recommend the following essential links:

 Marlin Firmware Official Website

-  - https://marlinfw.org/
+  - http://marlinfw.org/
    The official Marlin Firmware website contains the most up-to-date
    documentation. Contributions are always welcome!

 Configuration

-  - https://github.com/MarlinFirmware/Configurations
-    Example configurations for several printer models.
-
  - https://www.youtube.com/watch?v=3gwWVFtdg-4
    A good 20-minute overview of Marlin configuration by Tom Sanladerer.
    (Applies to Marlin 1.0.x, so Jerk and Acceleration should be halved.)
    Also... https://www.google.com/search?tbs=vid%3A1&q=configure+marlin

-  - https://marlinfw.org/docs/configuration/configuration.html
+  - http://marlinfw.org/docs/configuration/configuration.html
    Marlin's configuration options are explained in more detail here.

 Getting Help

-  - https://reprap.org/forum/list.php?415
+  - http://forums.reprap.org/list.php?415
    The Marlin Discussion Forum is a great place to get help from other Marlin
    users who may have experienced similar issues to your own.

@@ -47,11 +45,9 @@ Getting Help

 Contributing

-  - https://marlinfw.org/docs/development/contributing.html
+  - http://marlinfw.org/docs/development/contributing.html
    If you'd like to contribute to Marlin, read this first!

-  - https://marlinfw.org/docs/development/coding_standards.html
+  - http://marlinfw.org/docs/development/coding_standards.html
    Before submitting code get to know the Coding Standards.
-
-
------------------------------------------------------------------------------*/
+*/
--- a/Marlin/Version.h
+++ b/Marlin/Version.h
@@ -16,7 +16,7 @@
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 *
 */
 #pragma once
@@ -28,20 +28,20 @@
 /**
 * Marlin release version identifier
 */
-//#define SHORT_BUILD_VERSION "2.0.8.2"
+//#define SHORT_BUILD_VERSION "2.0.5.5"

 /**
 * Verbose version identifier which should contain a reference to the location
 * from where the binary was downloaded or the source code was compiled.
 */
-//#define DETAILED_BUILD_VERSION SHORT_BUILD_VERSION
+//#define DETAILED_BUILD_VERSION SHORT_BUILD_VERSION " (Github)"

 /**
 * The STRING_DISTRIBUTION_DATE represents when the binary file was built,
 * here we define this default string as the date where the latest release
 * version was tagged.
 */
-//#define STRING_DISTRIBUTION_DATE "2021-05-29"
+//#define STRING_DISTRIBUTION_DATE "2023-07-18"

 /**
 * Defines a generic printer name to be output to the LCD after booting Marlin.
@@ -54,7 +54,7 @@
 * has a distinct Github fork— the Source Code URL should just be the main
 * Marlin repository.
 */
-//#define SOURCE_CODE_URL "github.com/MarlinFirmware/Marlin"
+//#define SOURCE_CODE_URL "https://github.com/MarlinFirmware/Marlin"

 /**
 * Default generic printer UUID.
@@ -65,12 +65,12 @@
 * The WEBSITE_URL is the location where users can get more information such as
 * documentation about a specific Marlin release.
 */
-//#define WEBSITE_URL "marlinfw.org"
+//#define WEBSITE_URL "http://marlinfw.org"

 /**
 * Set the vendor info the serial USB interface, if changable
 * Currently only supported by DUE platform
 */
-//#define USB_DEVICE_VENDOR_ID           0x0000
-//#define USB_DEVICE_PRODUCT_ID          0x0000
-//#define USB_DEVICE_MANUFACTURE_NAME    WEBSITE_URL
+//#define  USB_DEVICE_VENDOR_ID           0x0000
+//#define  USB_DEVICE_PRODUCT_ID          0x0000
+//#define  USB_DEVICE_MANUFACTURE_NAME    WEBSITE_URL
--- a/Marlin/lib/readme.txt
+++ b/Marlin/lib/readme.txt
@@ -33,4 +33,4 @@ PlatformIO will find your libraries automatically, configure preprocessor's
 include paths and build them.

 More information about PlatformIO Library Dependency Finder
- https://docs.platformio.org/page/librarymanager/ldf.html
+- http://docs.platformio.org/page/librarymanager/ldf.html
--- a/Marlin/src/HAL/AVR/HAL.cpp
+++ b/Marlin/src/HAL/AVR/HAL.cpp
@@ -16,21 +16,15 @@
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 *
 */
+
 #ifdef __AVR__

 #include "../../inc/MarlinConfig.h"
 #include "HAL.h"

-#ifdef USBCON
-  DefaultSerial1 MSerial0(false, Serial);
-  #ifdef BLUETOOTH
-    BTSerial btSerial(false, bluetoothSerial);
-  #endif
-#endif
-
 // ------------------------
 // Public Variables
 // ------------------------
@@ -58,15 +52,6 @@ void HAL_init() {
  #endif
 }

-void HAL_reboot() {
-  #if ENABLED(USE_WATCHDOG)
-    while (1) { /* run out the watchdog */ }
-  #else
-    void (*resetFunc)() = 0;  // Declare resetFunc() at address 0
-    resetFunc();              // Jump to address 0
-  #endif
-}
-
 #if ENABLED(SDSUPPORT)

  #include "../../sd/SdFatUtil.h"
--- a/Marlin/src/HAL/AVR/HAL.h
+++ b/Marlin/src/HAL/AVR/HAL.h
@@ -14,8 +14,7 @@
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <https://www.gnu.org/licenses/>.
- *
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
 #pragma once

@@ -51,11 +50,7 @@
 // Defines
 // ------------------------

-// AVR PROGMEM extension for sprintf_P
-#define S_FMT "%S"
-
-// AVR PROGMEM extension for string define
-#define PGMSTR(NAM,STR) const char NAM[] PROGMEM = STR
+//#define analogInputToDigitalPin(IO) IO

 #ifndef CRITICAL_SECTION_START
  #define CRITICAL_SECTION_START()  unsigned char _sreg = SREG; cli()
@@ -65,10 +60,16 @@
 #define ENABLE_ISRS()  sei()
 #define DISABLE_ISRS() cli()

+// On AVR this is in math.h?
+//#define square(x) ((x)*(x))
+
 // ------------------------
 // Types
 // ------------------------

+typedef uint16_t hal_timer_t;
+#define HAL_TIMER_TYPE_MAX 0xFFFF
+
 typedef int8_t pin_t;

 #define SHARED_SERVOS HAS_SERVOS
@@ -82,51 +83,43 @@ typedef int8_t pin_t;

 // Serial ports
 #ifdef USBCON
-  #include "../../core/serial_hook.h"
-  typedef ForwardSerial1Class< decltype(Serial) > DefaultSerial1;
-  extern DefaultSerial1 MSerial0;
-  #ifdef BLUETOOTH
-    typedef ForwardSerial1Class< decltype(bluetoothSerial) > BTSerial;
-    extern BTSerial btSerial;
+  #if ENABLED(BLUETOOTH)
+    #define MYSERIAL0 bluetoothSerial
+  #else
+    #define MYSERIAL0 Serial
  #endif
-
-  #define MYSERIAL1 TERN(BLUETOOTH, btSerial, MSerial0)
+  #define NUM_SERIAL 1
 #else
  #if !WITHIN(SERIAL_PORT, -1, 3)
-    #error "SERIAL_PORT must be from 0 to 3, or -1 for USB Serial."
+    #error "SERIAL_PORT must be from -1 to 3. Please update your configuration."
  #endif
-  #define MYSERIAL1 customizedSerial1
+
+  #define MYSERIAL0 customizedSerial1

  #ifdef SERIAL_PORT_2
    #if !WITHIN(SERIAL_PORT_2, -1, 3)
-      #error "SERIAL_PORT_2 must be from 0 to 3, or -1 for USB Serial."
+      #error "SERIAL_PORT_2 must be from -1 to 3. Please update your configuration."
+    #elif SERIAL_PORT_2 == SERIAL_PORT
+      #error "SERIAL_PORT_2 must be different than SERIAL_PORT. Please update your configuration."
    #endif
-    #define MYSERIAL2 customizedSerial2
-  #endif
-
-  #ifdef SERIAL_PORT_3
-    #if !WITHIN(SERIAL_PORT_3, -1, 3)
-      #error "SERIAL_PORT_3 must be from 0 to 3, or -1 for USB Serial."
-    #endif
-    #define MYSERIAL3 customizedSerial3
+    #define MYSERIAL1 customizedSerial2
+    #define NUM_SERIAL 2
+  #else
+    #define NUM_SERIAL 1
  #endif
 #endif

-#ifdef MMU2_SERIAL_PORT
-  #if !WITHIN(MMU2_SERIAL_PORT, -1, 3)
-    #error "MMU2_SERIAL_PORT must be from 0 to 3, or -1 for USB Serial."
+#ifdef DGUS_SERIAL_PORT
+  #if !WITHIN(DGUS_SERIAL_PORT, -1, 3)
+    #error "DGUS_SERIAL_PORT must be from -1 to 3. Please update your configuration."
+  #elif DGUS_SERIAL_PORT == SERIAL_PORT
+    #error "DGUS_SERIAL_PORT must be different than SERIAL_PORT. Please update your configuration."
+  #elif defined(SERIAL_PORT_2) && DGUS_SERIAL_PORT == SERIAL_PORT_2
+    #error "DGUS_SERIAL_PORT must be different than SERIAL_PORT_2. Please update your configuration."
  #endif
-  #define MMU2_SERIAL mmuSerial
-#endif
+  #define DGUS_SERIAL internalDgusSerial

-#ifdef LCD_SERIAL_PORT
-  #if !WITHIN(LCD_SERIAL_PORT, -1, 3)
-    #error "LCD_SERIAL_PORT must be from 0 to 3, or -1 for USB Serial."
-  #endif
-  #define LCD_SERIAL lcdSerial
-  #if HAS_DGUS_LCD
-    #define SERIAL_GET_TX_BUFFER_FREE() LCD_SERIAL.get_tx_buffer_free()
-  #endif
+  #define DGUS_SERIAL_GET_TX_BUFFER_FREE DGUS_SERIAL.get_tx_buffer_free
 #endif

 // ------------------------
@@ -142,18 +135,226 @@ void HAL_init();
 inline void HAL_clear_reset_source() { MCUSR = 0; }
 inline uint8_t HAL_get_reset_source() { return MCUSR; }

-void HAL_reboot();
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wunused-function"
+extern "C" {
+  int freeMemory();
+}
+#pragma GCC diagnostic pop

-#if GCC_VERSION <= 50000
-  #pragma GCC diagnostic push
-  #pragma GCC diagnostic ignored "-Wunused-function"
-#endif
+// timers
+#define HAL_TIMER_RATE          ((F_CPU) / 8)    // i.e., 2MHz or 2.5MHz

-extern "C" int freeMemory();
+#define STEP_TIMER_NUM          1
+#define TEMP_TIMER_NUM          0
+#define PULSE_TIMER_NUM         STEP_TIMER_NUM

-#if GCC_VERSION <= 50000
-  #pragma GCC diagnostic pop
-#endif
+#define TEMP_TIMER_FREQUENCY    ((F_CPU) / 64.0 / 256.0)
+
+#define STEPPER_TIMER_RATE      HAL_TIMER_RATE
+#define STEPPER_TIMER_PRESCALE  8
+#define STEPPER_TIMER_TICKS_PER_US ((STEPPER_TIMER_RATE) / 1000000) // Cannot be of type double
+
+#define PULSE_TIMER_RATE       STEPPER_TIMER_RATE   // frequency of pulse timer
+#define PULSE_TIMER_PRESCALE   STEPPER_TIMER_PRESCALE
+#define PULSE_TIMER_TICKS_PER_US STEPPER_TIMER_TICKS_PER_US
+
+#define ENABLE_STEPPER_DRIVER_INTERRUPT()  SBI(TIMSK1, OCIE1A)
+#define DISABLE_STEPPER_DRIVER_INTERRUPT() CBI(TIMSK1, OCIE1A)
+#define STEPPER_ISR_ENABLED()             TEST(TIMSK1, OCIE1A)
+
+#define ENABLE_TEMPERATURE_INTERRUPT()     SBI(TIMSK0, OCIE0B)
+#define DISABLE_TEMPERATURE_INTERRUPT()    CBI(TIMSK0, OCIE0B)
+#define TEMPERATURE_ISR_ENABLED()         TEST(TIMSK0, OCIE0B)
+
+FORCE_INLINE void HAL_timer_start(const uint8_t timer_num, const uint32_t) {
+  switch (timer_num) {
+    case STEP_TIMER_NUM:
+      // waveform generation = 0100 = CTC
+      SET_WGM(1, CTC_OCRnA);
+
+      // output mode = 00 (disconnected)
+      SET_COMA(1, NORMAL);
+
+      // Set the timer pre-scaler
+      // Generally we use a divider of 8, resulting in a 2MHz timer
+      // frequency on a 16MHz MCU. If you are going to change this, be
+      // sure to regenerate speed_lookuptable.h with
+      // create_speed_lookuptable.py
+      SET_CS(1, PRESCALER_8);  //  CS 2 = 1/8 prescaler
+
+      // Init Stepper ISR to 122 Hz for quick starting
+      // (F_CPU) / (STEPPER_TIMER_PRESCALE) / frequency
+      OCR1A = 0x4000;
+      TCNT1 = 0;
+      break;
+
+    case TEMP_TIMER_NUM:
+      // Use timer0 for temperature measurement
+      // Interleave temperature interrupt with millies interrupt
+      OCR0B = 128;
+      break;
+  }
+}
+
+#define TIMER_OCR_1             OCR1A
+#define TIMER_COUNTER_1         TCNT1
+
+#define TIMER_OCR_0             OCR0A
+#define TIMER_COUNTER_0         TCNT0
+
+#define _CAT(a,V...) a##V
+#define HAL_timer_set_compare(timer, compare) (_CAT(TIMER_OCR_, timer) = compare)
+#define HAL_timer_get_compare(timer) _CAT(TIMER_OCR_, timer)
+#define HAL_timer_get_count(timer) _CAT(TIMER_COUNTER_, timer)
+
+/**
+ * On AVR there is no hardware prioritization and preemption of
+ * interrupts, so this emulates it. The UART has first priority
+ * (otherwise, characters will be lost due to UART overflow).
+ * Then: Stepper, Endstops, Temperature, and -finally- all others.
+ */
+#define HAL_timer_isr_prologue(TIMER_NUM)
+#define HAL_timer_isr_epilogue(TIMER_NUM)
+
+/* 18 cycles maximum latency */
+#define HAL_STEP_TIMER_ISR() \
+extern "C" void TIMER1_COMPA_vect() __attribute__ ((signal, naked, used, externally_visible)); \
+extern "C" void TIMER1_COMPA_vect_bottom() asm ("TIMER1_COMPA_vect_bottom") __attribute__ ((used, externally_visible, noinline)); \
+void TIMER1_COMPA_vect() { \
+  __asm__ __volatile__ ( \
+    A("push r16")                      /* 2 Save R16 */ \
+    A("in r16, __SREG__")              /* 1 Get SREG */ \
+    A("push r16")                      /* 2 Save SREG into stack */ \
+    A("lds r16, %[timsk0]")            /* 2 Load into R0 the Temperature timer Interrupt mask register */ \
+    A("push r16")                      /* 2 Save TIMSK0 into the stack */ \
+    A("andi r16,~%[msk0]")             /* 1 Disable the temperature ISR */ \
+    A("sts %[timsk0], r16")            /* 2 And set the new value */ \
+    A("lds r16, %[timsk1]")            /* 2 Load into R0 the stepper timer Interrupt mask register [TIMSK1] */ \
+    A("andi r16,~%[msk1]")             /* 1 Disable the stepper ISR */ \
+    A("sts %[timsk1], r16")            /* 2 And set the new value */ \
+    A("push r16")                      /* 2 Save TIMSK1 into stack */ \
+    A("in r16, 0x3B")                  /* 1 Get RAMPZ register */ \
+    A("push r16")                      /* 2 Save RAMPZ into stack */ \
+    A("in r16, 0x3C")                  /* 1 Get EIND register */ \
+    A("push r0")                       /* C runtime can modify all the following registers without restoring them */ \
+    A("push r1")                       \
+    A("push r18")                      \
+    A("push r19")                      \
+    A("push r20")                      \
+    A("push r21")                      \
+    A("push r22")                      \
+    A("push r23")                      \
+    A("push r24")                      \
+    A("push r25")                      \
+    A("push r26")                      \
+    A("push r27")                      \
+    A("push r30")                      \
+    A("push r31")                      \
+    A("clr r1")                        /* C runtime expects this register to be 0 */ \
+    A("call TIMER1_COMPA_vect_bottom") /* Call the bottom handler - No inlining allowed, otherwise registers used are not saved */   \
+    A("pop r31")                       \
+    A("pop r30")                       \
+    A("pop r27")                       \
+    A("pop r26")                       \
+    A("pop r25")                       \
+    A("pop r24")                       \
+    A("pop r23")                       \
+    A("pop r22")                       \
+    A("pop r21")                       \
+    A("pop r20")                       \
+    A("pop r19")                       \
+    A("pop r18")                       \
+    A("pop r1")                        \
+    A("pop r0")                        \
+    A("out 0x3C, r16")                 /* 1 Restore EIND register */ \
+    A("pop r16")                       /* 2 Get the original RAMPZ register value */ \
+    A("out 0x3B, r16")                 /* 1 Restore RAMPZ register to its original value */ \
+    A("pop r16")                       /* 2 Get the original TIMSK1 value but with stepper ISR disabled */ \
+    A("ori r16,%[msk1]")               /* 1 Reenable the stepper ISR */ \
+    A("cli")                           /* 1 Disable global interrupts - Reenabling Stepper ISR can reenter amd temperature can reenter, and we want that, if it happens, after this ISR has ended */ \
+    A("sts %[timsk1], r16")            /* 2 And restore the old value - This reenables the stepper ISR */ \
+    A("pop r16")                       /* 2 Get the temperature timer Interrupt mask register [TIMSK0] */ \
+    A("sts %[timsk0], r16")            /* 2 And restore the old value - This reenables the temperature ISR */ \
+    A("pop r16")                       /* 2 Get the old SREG value */ \
+    A("out __SREG__, r16")             /* 1 And restore the SREG value */ \
+    A("pop r16")                       /* 2 Restore R16 value */ \
+    A("reti")                          /* 4 Return from interrupt */ \
+    :                                   \
+    : [timsk0] "i" ((uint16_t)&TIMSK0), \
+      [timsk1] "i" ((uint16_t)&TIMSK1), \
+      [msk0] "M" ((uint8_t)(1<<OCIE0B)),\
+      [msk1] "M" ((uint8_t)(1<<OCIE1A)) \
+    : \
+  ); \
+} \
+void TIMER1_COMPA_vect_bottom()
+
+/* 14 cycles maximum latency */
+#define HAL_TEMP_TIMER_ISR() \
+extern "C" void TIMER0_COMPB_vect() __attribute__ ((signal, naked, used, externally_visible)); \
+extern "C" void TIMER0_COMPB_vect_bottom()  asm ("TIMER0_COMPB_vect_bottom") __attribute__ ((used, externally_visible, noinline)); \
+void TIMER0_COMPB_vect() { \
+  __asm__ __volatile__ ( \
+    A("push r16")                       /* 2 Save R16 */ \
+    A("in r16, __SREG__")               /* 1 Get SREG */ \
+    A("push r16")                       /* 2 Save SREG into stack */ \
+    A("lds r16, %[timsk0]")             /* 2 Load into R0 the Temperature timer Interrupt mask register */ \
+    A("andi r16,~%[msk0]")              /* 1 Disable the temperature ISR */ \
+    A("sts %[timsk0], r16")             /* 2 And set the new value */ \
+    A("sei")                            /* 1 Enable global interrupts - It is safe, as the temperature ISR is disabled, so we cannot reenter it */    \
+    A("push r16")                       /* 2 Save TIMSK0 into stack */ \
+    A("in r16, 0x3B")                   /* 1 Get RAMPZ register */ \
+    A("push r16")                       /* 2 Save RAMPZ into stack */ \
+    A("in r16, 0x3C")                   /* 1 Get EIND register */ \
+    A("push r0")                        /* C runtime can modify all the following registers without restoring them */ \
+    A("push r1")                        \
+    A("push r18")                       \
+    A("push r19")                       \
+    A("push r20")                       \
+    A("push r21")                       \
+    A("push r22")                       \
+    A("push r23")                       \
+    A("push r24")                       \
+    A("push r25")                       \
+    A("push r26")                       \
+    A("push r27")                       \
+    A("push r30")                       \
+    A("push r31")                       \
+    A("clr r1")                         /* C runtime expects this register to be 0 */ \
+    A("call TIMER0_COMPB_vect_bottom")  /* Call the bottom handler - No inlining allowed, otherwise registers used are not saved */   \
+    A("pop r31")                        \
+    A("pop r30")                        \
+    A("pop r27")                        \
+    A("pop r26")                        \
+    A("pop r25")                        \
+    A("pop r24")                        \
+    A("pop r23")                        \
+    A("pop r22")                        \
+    A("pop r21")                        \
+    A("pop r20")                        \
+    A("pop r19")                        \
+    A("pop r18")                        \
+    A("pop r1")                         \
+    A("pop r0")                         \
+    A("out 0x3C, r16")                  /* 1 Restore EIND register */ \
+    A("pop r16")                        /* 2 Get the original RAMPZ register value */ \
+    A("out 0x3B, r16")                  /* 1 Restore RAMPZ register to its original value */ \
+    A("pop r16")                        /* 2 Get the original TIMSK0 value but with temperature ISR disabled */ \
+    A("ori r16,%[msk0]")                /* 1 Enable temperature ISR */ \
+    A("cli")                            /* 1 Disable global interrupts - We must do this, as we will reenable the temperature ISR, and we don't want to reenter this handler until the current one is done */ \
+    A("sts %[timsk0], r16")             /* 2 And restore the old value */ \
+    A("pop r16")                        /* 2 Get the old SREG */ \
+    A("out __SREG__, r16")              /* 1 And restore the SREG value */ \
+    A("pop r16")                        /* 2 Restore R16 */ \
+    A("reti")                           /* 4 Return from interrupt */ \
+    :                                   \
+    : [timsk0] "i"((uint16_t)&TIMSK0),  \
+      [msk0] "M" ((uint8_t)(1<<OCIE0B)) \
+    : \
+  ); \
+} \
+void TIMER0_COMPB_vect_bottom()

 // ADC
 #ifdef DIDR2
@@ -177,7 +378,6 @@ inline void HAL_adc_init() {
  #define HAL_START_ADC(ch) ADCSRB = 0; SET_ADMUX_ADCSRA(ch)
 #endif

-#define HAL_ADC_VREF        5.0
 #define HAL_ADC_RESOLUTION 10
 #define HAL_READ_ADC()  ADC
 #define HAL_ADC_READY() !TEST(ADCSRA, ADSC)
@@ -195,8 +395,6 @@ inline void HAL_adc_init() {
 // AVR compatibility
 #define strtof strtod

-#define HAL_CAN_SET_PWM_FREQ   // This HAL supports PWM Frequency adjustment
-
 /**
 *  set_pwm_frequency
 *  Sets the frequency of the timer corresponding to the provided pin
--- a/Marlin/src/HAL/AVR/HAL_SPI.cpp
+++ b/Marlin/src/HAL/AVR/HAL_SPI.cpp
@@ -16,7 +16,7 @@
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 *
 */

@@ -34,17 +34,17 @@
 #include "../../inc/MarlinConfig.h"

 void spiBegin() {
-  OUT_WRITE(SD_SS_PIN, HIGH);
-  SET_OUTPUT(SD_SCK_PIN);
-  SET_INPUT(SD_MISO_PIN);
-  SET_OUTPUT(SD_MOSI_PIN);
+  OUT_WRITE(SS_PIN, HIGH);
+  SET_OUTPUT(SCK_PIN);
+  SET_INPUT(MISO_PIN);
+  SET_OUTPUT(MOSI_PIN);

  #if DISABLED(SOFTWARE_SPI)
    // SS must be in output mode even it is not chip select
-    //SET_OUTPUT(SD_SS_PIN);
+    //SET_OUTPUT(SS_PIN);
    // set SS high - may be chip select for another SPI device
    //#if SET_SPI_SS_HIGH
-      //WRITE(SD_SS_PIN, HIGH);
+      //WRITE(SS_PIN, HIGH);
    //#endif
    // set a default rate
    spiInit(1);
@@ -88,7 +88,7 @@ void spiBegin() {
  }

  /** SPI read data  */
-  void spiRead(uint8_t *buf, uint16_t nbyte) {
+  void spiRead(uint8_t* buf, uint16_t nbyte) {
    if (nbyte-- == 0) return;
    SPDR = 0xFF;
    for (uint16_t i = 0; i < nbyte; i++) {
@@ -107,7 +107,7 @@ void spiBegin() {
  }

  /** SPI send block  */
-  void spiSendBlock(uint8_t token, const uint8_t *buf) {
+  void spiSendBlock(uint8_t token, const uint8_t* buf) {
    SPDR = token;
    for (uint16_t i = 0; i < 512; i += 2) {
      while (!TEST(SPSR, SPIF)) { /* Intentionally left empty */ }
@@ -195,19 +195,19 @@ void spiBegin() {
    // no interrupts during byte receive - about 8µs
    cli();
    // output pin high - like sending 0xFF
-    WRITE(SD_MOSI_PIN, HIGH);
+    WRITE(MOSI_PIN, HIGH);

    LOOP_L_N(i, 8) {
-      WRITE(SD_SCK_PIN, HIGH);
+      WRITE(SCK_PIN, HIGH);

      nop; // adjust so SCK is nice
      nop;

      data <<= 1;

-      if (READ(SD_MISO_PIN)) data |= 1;
+      if (READ(MISO_PIN)) data |= 1;

-      WRITE(SD_SCK_PIN, LOW);
+      WRITE(SCK_PIN, LOW);
    }

    sei();
@@ -215,7 +215,7 @@ void spiBegin() {
  }

  // Soft SPI read data
-  void spiRead(uint8_t *buf, uint16_t nbyte) {
+  void spiRead(uint8_t* buf, uint16_t nbyte) {
    for (uint16_t i = 0; i < nbyte; i++)
      buf[i] = spiRec();
  }
@@ -225,10 +225,10 @@ void spiBegin() {
    // no interrupts during byte send - about 8µs
    cli();
    LOOP_L_N(i, 8) {
-      WRITE(SD_SCK_PIN, LOW);
-      WRITE(SD_MOSI_PIN, data & 0x80);
+      WRITE(SCK_PIN, LOW);
+      WRITE(MOSI_PIN, data & 0x80);
      data <<= 1;
-      WRITE(SD_SCK_PIN, HIGH);
+      WRITE(SCK_PIN, HIGH);
    }

    nop; // hold SCK high for a few ns
@@ -236,13 +236,13 @@ void spiBegin() {
    nop;
    nop;

-    WRITE(SD_SCK_PIN, LOW);
+    WRITE(SCK_PIN, LOW);

    sei();
  }

  // Soft SPI send block
-  void spiSendBlock(uint8_t token, const uint8_t *buf) {
+  void spiSendBlock(uint8_t token, const uint8_t* buf) {
    spiSend(token);
    for (uint16_t i = 0; i < 512; i++)
      spiSend(buf[i]);
--- a/Marlin/src/HAL/AVR/MarlinSerial.cpp
+++ b/Marlin/src/HAL/AVR/MarlinSerial.cpp
--- a/Marlin/src/HAL/AVR/MarlinSerial.h
+++ b/Marlin/src/HAL/AVR/MarlinSerial.h
@@ -16,7 +16,7 @@
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 *
 */
 #pragma once
@@ -34,7 +34,6 @@
 #include <WString.h>

 #include "../../inc/MarlinConfigPre.h"
-#include "../../core/serial_hook.h"

 #ifndef SERIAL_PORT
  #define SERIAL_PORT 0
@@ -49,11 +48,11 @@

  // These are macros to build serial port register names for the selected SERIAL_PORT (C preprocessor
  // requires two levels of indirection to expand macro values properly)
-  #define SERIAL_REGNAME(registerbase,number,suffix) _SERIAL_REGNAME(registerbase,number,suffix)
+  #define SERIAL_REGNAME(registerbase,number,suffix) SERIAL_REGNAME_INTERNAL(registerbase,number,suffix)
  #if SERIAL_PORT == 0 && (!defined(UBRR0H) || !defined(UDR0)) // use un-numbered registers if necessary
-    #define _SERIAL_REGNAME(registerbase,number,suffix) registerbase##suffix
+    #define SERIAL_REGNAME_INTERNAL(registerbase,number,suffix) registerbase##suffix
  #else
-    #define _SERIAL_REGNAME(registerbase,number,suffix) registerbase##number##suffix
+    #define SERIAL_REGNAME_INTERNAL(registerbase,number,suffix) registerbase##number##suffix
  #endif

  // Registers used by MarlinSerial class (expanded depending on selected serial port)
@@ -136,6 +135,10 @@
    UART_DECL(3);
  #endif

+  #define DEC 10
+  #define HEX 16
+  #define OCT 8
+  #define BIN 2
  #define BYTE 0

  // Templated type selector
@@ -199,30 +202,58 @@
    static FORCE_INLINE void atomic_set_rx_tail(ring_buffer_pos_t value);
    static FORCE_INLINE ring_buffer_pos_t atomic_read_rx_tail();

-  public:
+    public:
+
    FORCE_INLINE static void store_rxd_char();
    FORCE_INLINE static void _tx_udr_empty_irq();

-  public:
-    static void begin(const long);
-    static void end();
-    static int peek();
-    static int read();
-    static void flush();
-    static ring_buffer_pos_t available();
-    static void write(const uint8_t c);
-    static void flushTX();
-    #if HAS_DGUS_LCD
-      static ring_buffer_pos_t get_tx_buffer_free();
-    #endif
+    public:
+      MarlinSerial() {};
+      static void begin(const long);
+      static void end();
+      static int peek();
+      static int read();
+      static void flush();
+      static ring_buffer_pos_t available();
+      static void write(const uint8_t c);
+      static void flushTX();
+      #ifdef DGUS_SERIAL_PORT
+        static ring_buffer_pos_t get_tx_buffer_free();
+      #endif

-    enum { HasEmergencyParser = Cfg::EMERGENCYPARSER };
-    static inline bool emergency_parser_enabled() { return Cfg::EMERGENCYPARSER; }
+      FORCE_INLINE static uint8_t dropped() { return Cfg::DROPPED_RX ? rx_dropped_bytes : 0; }
+      FORCE_INLINE static uint8_t buffer_overruns() { return Cfg::RX_OVERRUNS ? rx_buffer_overruns : 0; }
+      FORCE_INLINE static uint8_t framing_errors() { return Cfg::RX_FRAMING_ERRORS ? rx_framing_errors : 0; }
+      FORCE_INLINE static ring_buffer_pos_t rxMaxEnqueued() { return Cfg::MAX_RX_QUEUED ? rx_max_enqueued : 0; }

-    FORCE_INLINE static uint8_t dropped() { return Cfg::DROPPED_RX ? rx_dropped_bytes : 0; }
-    FORCE_INLINE static uint8_t buffer_overruns() { return Cfg::RX_OVERRUNS ? rx_buffer_overruns : 0; }
-    FORCE_INLINE static uint8_t framing_errors() { return Cfg::RX_FRAMING_ERRORS ? rx_framing_errors : 0; }
-    FORCE_INLINE static ring_buffer_pos_t rxMaxEnqueued() { return Cfg::MAX_RX_QUEUED ? rx_max_enqueued : 0; }
+      FORCE_INLINE static void write(const char* str) { while (*str) write(*str++); }
+      FORCE_INLINE static void write(const uint8_t* buffer, size_t size) { while (size--) write(*buffer++); }
+      FORCE_INLINE static void print(const String& s) { for (int i = 0; i < (int)s.length(); i++) write(s[i]); }
+      FORCE_INLINE static void print(const char* str) { write(str); }
+
+      static void print(char, int = BYTE);
+      static void print(unsigned char, int = BYTE);
+      static void print(int, int = DEC);
+      static void print(unsigned int, int = DEC);
+      static void print(long, int = DEC);
+      static void print(unsigned long, int = DEC);
+      static void print(double, int = 2);
+
+      static void println(const String& s);
+      static void println(const char[]);
+      static void println(char, int = BYTE);
+      static void println(unsigned char, int = BYTE);
+      static void println(int, int = DEC);
+      static void println(unsigned int, int = DEC);
+      static void println(long, int = DEC);
+      static void println(unsigned long, int = DEC);
+      static void println(double, int = 2);
+      static void println();
+      operator bool() { return true; }
+
+    private:
+      static void printNumber(unsigned long, const uint8_t);
+      static void printFloat(double, uint8_t);
  };

  template <uint8_t serial>
@@ -237,61 +268,51 @@
    static constexpr bool RX_FRAMING_ERRORS = ENABLED(SERIAL_STATS_RX_FRAMING_ERRORS);
    static constexpr bool MAX_RX_QUEUED     = ENABLED(SERIAL_STATS_MAX_RX_QUEUED);
  };
-
-  typedef Serial1Class< MarlinSerial< MarlinSerialCfg<SERIAL_PORT> > > MSerialT1;
-  extern MSerialT1 customizedSerial1;
+  extern MarlinSerial<MarlinSerialCfg<SERIAL_PORT>> customizedSerial1;

  #ifdef SERIAL_PORT_2
-    typedef Serial1Class< MarlinSerial< MarlinSerialCfg<SERIAL_PORT_2> > > MSerialT2;
-    extern MSerialT2 customizedSerial2;
-  #endif

-  #ifdef SERIAL_PORT_3
-    typedef Serial1Class< MarlinSerial< MarlinSerialCfg<SERIAL_PORT_3> > > MSerialT3;
-    extern MSerialT3 customizedSerial3;
+    extern MarlinSerial<MarlinSerialCfg<SERIAL_PORT_2>> customizedSerial2;
+
  #endif

 #endif // !USBCON

-#ifdef MMU2_SERIAL_PORT
+#ifdef INTERNAL_SERIAL_PORT
  template <uint8_t serial>
-  struct MMU2SerialCfg {
+  struct MarlinInternalSerialCfg {
    static constexpr int PORT               = serial;
    static constexpr unsigned int RX_SIZE   = 32;
    static constexpr unsigned int TX_SIZE   = 32;
    static constexpr bool XONOFF            = false;
    static constexpr bool EMERGENCYPARSER   = false;
    static constexpr bool DROPPED_RX        = false;
+    static constexpr bool RX_OVERRUNS       = false;
    static constexpr bool RX_FRAMING_ERRORS = false;
    static constexpr bool MAX_RX_QUEUED     = false;
-    static constexpr bool RX_OVERRUNS       = false;
  };

-  typedef Serial1Class< MarlinSerial< MMU2SerialCfg<MMU2_SERIAL_PORT> > > MSerialMMU2;
-  extern MSerialMMU2 mmuSerial;
+  extern MarlinSerial<MarlinInternalSerialCfg<INTERNAL_SERIAL_PORT>> internalSerial;
 #endif

-#ifdef LCD_SERIAL_PORT
-
+#ifdef DGUS_SERIAL_PORT
  template <uint8_t serial>
-  struct LCDSerialCfg {
+  struct MarlinInternalSerialCfg {
    static constexpr int PORT               = serial;
-    static constexpr unsigned int RX_SIZE   = TERN(HAS_DGUS_LCD, DGUS_RX_BUFFER_SIZE,  64);
-    static constexpr unsigned int TX_SIZE   = TERN(HAS_DGUS_LCD, DGUS_TX_BUFFER_SIZE, 128);
+    static constexpr unsigned int RX_SIZE   = 128;
+    static constexpr unsigned int TX_SIZE   = 48;
    static constexpr bool XONOFF            = false;
-    static constexpr bool EMERGENCYPARSER   = ENABLED(EMERGENCY_PARSER);
+    static constexpr bool EMERGENCYPARSER   = false;
    static constexpr bool DROPPED_RX        = false;
+    static constexpr bool RX_OVERRUNS       = HAS_DGUS_LCD && ENABLED(DGUS_SERIAL_STATS_RX_BUFFER_OVERRUNS);
    static constexpr bool RX_FRAMING_ERRORS = false;
    static constexpr bool MAX_RX_QUEUED     = false;
-    static constexpr bool RX_OVERRUNS       = BOTH(HAS_DGUS_LCD, SERIAL_STATS_RX_BUFFER_OVERRUNS);
  };

-  typedef Serial1Class< MarlinSerial< LCDSerialCfg<LCD_SERIAL_PORT> > > MSerialLCD;
-  extern MSerialLCD lcdSerial;
+  extern MarlinSerial<MarlinInternalSerialCfg<DGUS_SERIAL_PORT>> internalDgusSerial;
 #endif

 // Use the UART for Bluetooth in AT90USB configurations
 #if defined(USBCON) && ENABLED(BLUETOOTH)
-  typedef Serial1Class<HardwareSerial> MSerialBT;
-  extern MSerialBT bluetoothSerial;
+  extern HardwareSerial bluetoothSerial;
 #endif
--- a/Marlin/src/HAL/AVR/Servo.cpp
+++ b/Marlin/src/HAL/AVR/Servo.cpp
@@ -16,7 +16,7 @@
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 *
 */

@@ -48,6 +48,7 @@
 * readMicroseconds()    - Get the last-written servo pulse width in microseconds.
 * attached()            - Return true if a servo is attached.
 * detach()              - Stop an attached servo from pulsing its i/o pin.
+ *
 */

 #ifdef __AVR__
@@ -58,6 +59,7 @@

 #include <avr/interrupt.h>

+#include "../shared/Marduino.h"
 #include "../shared/servo.h"
 #include "../shared/servo_private.h"

--- a/Marlin/src/HAL/AVR/ServoTimers.h
+++ b/Marlin/src/HAL/AVR/ServoTimers.h
@@ -16,7 +16,7 @@
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 *
 */
 #pragma once
@@ -59,12 +59,10 @@
 // Say which 16 bit timers can be used and in what order
 #if defined(__AVR_ATmega1280__) || defined(__AVR_ATmega2560__)
  //#define _useTimer1
+  #define _useTimer3
  #define _useTimer4
-  #if NUM_SERVOS > SERVOS_PER_TIMER
-    #define _useTimer3
-    #if !HAS_MOTOR_CURRENT_PWM && SERVOS > 2 * SERVOS_PER_TIMER
-      #define _useTimer5 // Timer 5 is used for motor current PWM and can't be used for servos.
-    #endif
+  #if !HAS_MOTOR_CURRENT_PWM
+    #define _useTimer5 // Timer 5 is used for motor current PWM and can't be used for servos.
  #endif
 #elif defined(__AVR_ATmega32U4__)
  #define _useTimer3
--- a/Marlin/src/HAL/AVR/eeprom.cpp
+++ b/Marlin/src/HAL/AVR/eeprom.cpp
@@ -16,7 +16,7 @@
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 *
 */
 #ifdef __AVR__
@@ -25,28 +25,19 @@

 #if EITHER(EEPROM_SETTINGS, SD_FIRMWARE_UPDATE)

-/**
- * PersistentStore for Arduino-style EEPROM interface
- * with implementations supplied by the framework.
- */
-
 #include "../shared/eeprom_api.h"

-#ifndef MARLIN_EEPROM_SIZE
-  #define MARLIN_EEPROM_SIZE size_t(E2END + 1)
-#endif
-size_t PersistentStore::capacity()    { return MARLIN_EEPROM_SIZE; }
-bool PersistentStore::access_start()  { return true; }
+bool PersistentStore::access_start() { return true; }
 bool PersistentStore::access_finish() { return true; }

 bool PersistentStore::write_data(int &pos, const uint8_t *value, size_t size, uint16_t *crc) {
-  uint16_t written = 0;
  while (size--) {
    uint8_t * const p = (uint8_t * const)pos;
    uint8_t v = *value;
-    if (v != eeprom_read_byte(p)) { // EEPROM has only ~100,000 write cycles, so only write bytes that have changed!
+    // EEPROM has only ~100,000 write cycles,
+    // so only write bytes that have changed!
+    if (v != eeprom_read_byte(p)) {
      eeprom_write_byte(p, v);
-      if (++written & 0x7F) delay(2); else safe_delay(2); // Avoid triggering watchdog during long EEPROM writes
      if (eeprom_read_byte(p) != v) {
        SERIAL_ECHO_MSG(STR_ERR_EEPROM_WRITE);
        return true;
@@ -55,11 +46,11 @@ bool PersistentStore::write_data(int &pos, const uint8_t *value, size_t size, ui
    crc16(crc, &v, 1);
    pos++;
    value++;
-  }
+  };
  return false;
 }

-bool PersistentStore::read_data(int &pos, uint8_t *value, size_t size, uint16_t *crc, const bool writing/*=true*/) {
+bool PersistentStore::read_data(int &pos, uint8_t* value, size_t size, uint16_t *crc, const bool writing/*=true*/) {
  do {
    uint8_t c = eeprom_read_byte((uint8_t*)pos);
    if (writing) *value = c;
@@ -70,5 +61,7 @@ bool PersistentStore::read_data(int &pos, uint8_t *value, size_t size, uint16_t
  return false;  // always assume success for AVR's
 }

+size_t PersistentStore::capacity() { return E2END + 1; }
+
 #endif // EEPROM_SETTINGS || SD_FIRMWARE_UPDATE
 #endif // __AVR__
--- a/Marlin/src/HAL/AVR/endstop_interrupts.h
+++ b/Marlin/src/HAL/AVR/endstop_interrupts.h
@@ -16,7 +16,7 @@
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 *
 */
 #pragma once
@@ -124,7 +124,7 @@ void setup_endstop_interrupts() {
    #if (digitalPinToInterrupt(X_MAX_PIN) != NOT_AN_INTERRUPT)
      _ATTACH(X_MAX_PIN);
    #else
-      static_assert(digitalPinHasPCICR(X_MAX_PIN), "X_MAX_PIN is not interrupt-capable. Disable ENDSTOP_INTERRUPTS_FEATURE to continue.");
+      static_assert(digitalPinHasPCICR(X_MAX_PIN), "X_MAX_PIN is not interrupt-capable");
      pciSetup(X_MAX_PIN);
    #endif
  #endif
@@ -132,7 +132,7 @@ void setup_endstop_interrupts() {
    #if (digitalPinToInterrupt(X_MIN_PIN) != NOT_AN_INTERRUPT)
      _ATTACH(X_MIN_PIN);
    #else
-      static_assert(digitalPinHasPCICR(X_MIN_PIN), "X_MIN_PIN is not interrupt-capable. Disable ENDSTOP_INTERRUPTS_FEATURE to continue.");
+      static_assert(digitalPinHasPCICR(X_MIN_PIN), "X_MIN_PIN is not interrupt-capable");
      pciSetup(X_MIN_PIN);
    #endif
  #endif
@@ -140,7 +140,7 @@ void setup_endstop_interrupts() {
    #if (digitalPinToInterrupt(Y_MAX_PIN) != NOT_AN_INTERRUPT)
      _ATTACH(Y_MAX_PIN);
    #else
-      static_assert(digitalPinHasPCICR(Y_MAX_PIN), "Y_MAX_PIN is not interrupt-capable. Disable ENDSTOP_INTERRUPTS_FEATURE to continue.");
+      static_assert(digitalPinHasPCICR(Y_MAX_PIN), "Y_MAX_PIN is not interrupt-capable");
      pciSetup(Y_MAX_PIN);
    #endif
  #endif
@@ -148,7 +148,7 @@ void setup_endstop_interrupts() {
    #if (digitalPinToInterrupt(Y_MIN_PIN) != NOT_AN_INTERRUPT)
      _ATTACH(Y_MIN_PIN);
    #else
-      static_assert(digitalPinHasPCICR(Y_MIN_PIN), "Y_MIN_PIN is not interrupt-capable. Disable ENDSTOP_INTERRUPTS_FEATURE to continue.");
+      static_assert(digitalPinHasPCICR(Y_MIN_PIN), "Y_MIN_PIN is not interrupt-capable");
      pciSetup(Y_MIN_PIN);
    #endif
  #endif
@@ -156,7 +156,7 @@ void setup_endstop_interrupts() {
    #if (digitalPinToInterrupt(Z_MAX_PIN) != NOT_AN_INTERRUPT)
      _ATTACH(Z_MAX_PIN);
    #else
-      static_assert(digitalPinHasPCICR(Z_MAX_PIN), "Z_MAX_PIN is not interrupt-capable. Disable ENDSTOP_INTERRUPTS_FEATURE to continue.");
+      static_assert(digitalPinHasPCICR(Z_MAX_PIN), "Z_MAX_PIN is not interrupt-capable");
      pciSetup(Z_MAX_PIN);
    #endif
  #endif
@@ -164,7 +164,7 @@ void setup_endstop_interrupts() {
    #if (digitalPinToInterrupt(Z_MIN_PIN) != NOT_AN_INTERRUPT)
      _ATTACH(Z_MIN_PIN);
    #else
-      static_assert(digitalPinHasPCICR(Z_MIN_PIN), "Z_MIN_PIN is not interrupt-capable. Disable ENDSTOP_INTERRUPTS_FEATURE to continue.");
+      static_assert(digitalPinHasPCICR(Z_MIN_PIN), "Z_MIN_PIN is not interrupt-capable");
      pciSetup(Z_MIN_PIN);
    #endif
  #endif
@@ -172,7 +172,7 @@ void setup_endstop_interrupts() {
    #if (digitalPinToInterrupt(X2_MAX_PIN) != NOT_AN_INTERRUPT)
      _ATTACH(X2_MAX_PIN);
    #else
-      static_assert(digitalPinHasPCICR(X2_MAX_PIN), "X2_MAX_PIN is not interrupt-capable. Disable ENDSTOP_INTERRUPTS_FEATURE to continue.");
+      static_assert(digitalPinHasPCICR(X2_MAX_PIN), "X2_MAX_PIN is not interrupt-capable");
      pciSetup(X2_MAX_PIN);
    #endif
  #endif
@@ -180,7 +180,7 @@ void setup_endstop_interrupts() {
    #if (digitalPinToInterrupt(X2_MIN_PIN) != NOT_AN_INTERRUPT)
      _ATTACH(X2_MIN_PIN);
    #else
-      static_assert(digitalPinHasPCICR(X2_MIN_PIN), "X2_MIN_PIN is not interrupt-capable. Disable ENDSTOP_INTERRUPTS_FEATURE to continue.");
+      static_assert(digitalPinHasPCICR(X2_MIN_PIN), "X2_MIN_PIN is not interrupt-capable");
      pciSetup(X2_MIN_PIN);
    #endif
  #endif
@@ -188,7 +188,7 @@ void setup_endstop_interrupts() {
    #if (digitalPinToInterrupt(Y2_MAX_PIN) != NOT_AN_INTERRUPT)
      _ATTACH(Y2_MAX_PIN);
    #else
-      static_assert(digitalPinHasPCICR(Y2_MAX_PIN), "Y2_MAX_PIN is not interrupt-capable. Disable ENDSTOP_INTERRUPTS_FEATURE to continue.");
+      static_assert(digitalPinHasPCICR(Y2_MAX_PIN), "Y2_MAX_PIN is not interrupt-capable");
      pciSetup(Y2_MAX_PIN);
    #endif
  #endif
@@ -196,7 +196,7 @@ void setup_endstop_interrupts() {
    #if (digitalPinToInterrupt(Y2_MIN_PIN) != NOT_AN_INTERRUPT)
      _ATTACH(Y2_MIN_PIN);
    #else
-      static_assert(digitalPinHasPCICR(Y2_MIN_PIN), "Y2_MIN_PIN is not interrupt-capable. Disable ENDSTOP_INTERRUPTS_FEATURE to continue.");
+      static_assert(digitalPinHasPCICR(Y2_MIN_PIN), "Y2_MIN_PIN is not interrupt-capable");
      pciSetup(Y2_MIN_PIN);
    #endif
  #endif
@@ -204,7 +204,7 @@ void setup_endstop_interrupts() {
    #if (digitalPinToInterrupt(Z2_MAX_PIN) != NOT_AN_INTERRUPT)
      _ATTACH(Z2_MAX_PIN);
    #else
-      static_assert(digitalPinHasPCICR(Z2_MAX_PIN), "Z2_MAX_PIN is not interrupt-capable. Disable ENDSTOP_INTERRUPTS_FEATURE to continue.");
+      static_assert(digitalPinHasPCICR(Z2_MAX_PIN), "Z2_MAX_PIN is not interrupt-capable");
      pciSetup(Z2_MAX_PIN);
    #endif
  #endif
@@ -212,7 +212,7 @@ void setup_endstop_interrupts() {
    #if (digitalPinToInterrupt(Z2_MIN_PIN) != NOT_AN_INTERRUPT)
      _ATTACH(Z2_MIN_PIN);
    #else
-      static_assert(digitalPinHasPCICR(Z2_MIN_PIN), "Z2_MIN_PIN is not interrupt-capable. Disable ENDSTOP_INTERRUPTS_FEATURE to continue.");
+      static_assert(digitalPinHasPCICR(Z2_MIN_PIN), "Z2_MIN_PIN is not interrupt-capable");
      pciSetup(Z2_MIN_PIN);
    #endif
  #endif
@@ -220,7 +220,7 @@ void setup_endstop_interrupts() {
    #if (digitalPinToInterrupt(Z3_MAX_PIN) != NOT_AN_INTERRUPT)
      _ATTACH(Z3_MAX_PIN);
    #else
-      static_assert(digitalPinHasPCICR(Z3_MAX_PIN), "Z3_MAX_PIN is not interrupt-capable. Disable ENDSTOP_INTERRUPTS_FEATURE to continue.");
+      static_assert(digitalPinHasPCICR(Z3_MAX_PIN), "Z3_MAX_PIN is not interrupt-capable");
      pciSetup(Z3_MAX_PIN);
    #endif
  #endif
@@ -228,7 +228,7 @@ void setup_endstop_interrupts() {
    #if (digitalPinToInterrupt(Z3_MIN_PIN) != NOT_AN_INTERRUPT)
      _ATTACH(Z3_MIN_PIN);
    #else
-      static_assert(digitalPinHasPCICR(Z3_MIN_PIN), "Z3_MIN_PIN is not interrupt-capable. Disable ENDSTOP_INTERRUPTS_FEATURE to continue.");
+      static_assert(digitalPinHasPCICR(Z3_MIN_PIN), "Z3_MIN_PIN is not interrupt-capable");
      pciSetup(Z3_MIN_PIN);
    #endif
  #endif
@@ -236,7 +236,7 @@ void setup_endstop_interrupts() {
    #if (digitalPinToInterrupt(Z4_MAX_PIN) != NOT_AN_INTERRUPT)
      _ATTACH(Z4_MAX_PIN);
    #else
-      static_assert(digitalPinHasPCICR(Z4_MAX_PIN), "Z4_MAX_PIN is not interrupt-capable. Disable ENDSTOP_INTERRUPTS_FEATURE to continue.");
+      static_assert(digitalPinHasPCICR(Z4_MAX_PIN), "Z4_MAX_PIN is not interrupt-capable");
      pciSetup(Z4_MAX_PIN);
    #endif
  #endif
@@ -244,7 +244,7 @@ void setup_endstop_interrupts() {
    #if (digitalPinToInterrupt(Z4_MIN_PIN) != NOT_AN_INTERRUPT)
      _ATTACH(Z4_MIN_PIN);
    #else
-      static_assert(digitalPinHasPCICR(Z4_MIN_PIN), "Z4_MIN_PIN is not interrupt-capable. Disable ENDSTOP_INTERRUPTS_FEATURE to continue.");
+      static_assert(digitalPinHasPCICR(Z4_MIN_PIN), "Z4_MIN_PIN is not interrupt-capable");
      pciSetup(Z4_MIN_PIN);
    #endif
  #endif
@@ -252,7 +252,7 @@ void setup_endstop_interrupts() {
    #if (digitalPinToInterrupt(Z_MIN_PROBE_PIN) != NOT_AN_INTERRUPT)
      _ATTACH(Z_MIN_PROBE_PIN);
    #else
-      static_assert(digitalPinHasPCICR(Z_MIN_PROBE_PIN), "Z_MIN_PROBE_PIN is not interrupt-capable. Disable ENDSTOP_INTERRUPTS_FEATURE to continue.");
+      static_assert(digitalPinHasPCICR(Z_MIN_PROBE_PIN), "Z_MIN_PROBE_PIN is not interrupt-capable");
      pciSetup(Z_MIN_PROBE_PIN);
    #endif
  #endif
--- a/Marlin/src/HAL/AVR/fast_pwm.cpp
+++ b/Marlin/src/HAL/AVR/fast_pwm.cpp
@@ -16,14 +16,14 @@
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 *
 */
 #ifdef __AVR__

 #include "../../inc/MarlinConfigPre.h"

-#if NEEDS_HARDWARE_PWM // Specific meta-flag for features that mandate PWM
+#if ENABLED(FAST_PWM_FAN) || SPINDLE_LASER_PWM

 #include "HAL.h"

@@ -185,8 +185,8 @@ void set_pwm_frequency(const pin_t pin, int f_desired) {
        res_temp_phase_correct = rtf / 2;
      }

-      LIMIT(res_temp_fast, 1U, size);
-      LIMIT(res_temp_phase_correct, 1U, size);
+      LIMIT(res_temp_fast, 1u, size);
+      LIMIT(res_temp_phase_correct, 1u, size);
      // Calculate frequencies of test prescaler and resolution values
      const int f_temp_fast = (F_CPU) / (prescaler[i] * (1 + res_temp_fast)),
                f_temp_phase_correct = (F_CPU) / (2 * prescaler[i] * res_temp_phase_correct),
@@ -274,9 +274,9 @@ void set_pwm_duty(const pin_t pin, const uint16_t v, const uint16_t v_size/*=255
    else
      top = *timer.ICRn; // top = ICRn

-    _SET_OCRnQ(timer.OCRnQ, timer.q, v * float(top) / float(v_size)); // Scale 8/16-bit v to top value
+    _SET_OCRnQ(timer.OCRnQ, timer.q, v * float(top / v_size)); // Scale 8/16-bit v to top value
  }
 }

-#endif // NEEDS_HARDWARE_PWM
+#endif // FAST_PWM_FAN || SPINDLE_LASER_PWM
 #endif // __AVR__
--- a/Marlin/src/HAL/AVR/fastio.cpp
+++ b/Marlin/src/HAL/AVR/fastio.cpp
@@ -16,7 +16,7 @@
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 *
 */

@@ -234,55 +234,5 @@ uint8_t extDigitalRead(const int8_t pin) {
  }
 }

-#if 0
-/**
- * Set Timer 5 PWM frequency in Hz, from 3.8Hz up to ~16MHz
- * with a minimum resolution of 100 steps.
- *
- * DC values -1.0 to 1.0. Negative duty cycle inverts the pulse.
- */
-uint16_t set_pwm_frequency_hz(const_float_t hz, const float dca, const float dcb, const float dcc) {
-  float count = 0;
-  if (hz > 0 && (dca || dcb || dcc)) {
-    count = float(F_CPU) / hz;            // 1x prescaler, TOP for 16MHz base freq.
-    uint16_t prescaler;                   // Range of 30.5Hz (65535) 64.5KHz (>31)
-
-         if (count >= 255. * 256.) { prescaler = 1024; SET_CS(5, PRESCALER_1024); }
-    else if (count >= 255. * 64.)  { prescaler = 256;  SET_CS(5,  PRESCALER_256); }
-    else if (count >= 255. * 8.)   { prescaler = 64;   SET_CS(5,   PRESCALER_64); }
-    else if (count >= 255.)        { prescaler = 8;    SET_CS(5,    PRESCALER_8); }
-    else                           { prescaler = 1;    SET_CS(5,    PRESCALER_1); }
-
-    count /= float(prescaler);
-    const float pwm_top = round(count);   // Get the rounded count
-
-    ICR5 = (uint16_t)pwm_top - 1;         // Subtract 1 for TOP
-    OCR5A = pwm_top * ABS(dca);          // Update and scale DCs
-    OCR5B = pwm_top * ABS(dcb);
-    OCR5C = pwm_top * ABS(dcc);
-    _SET_COM(5, A, dca ? (dca < 0 ? COM_SET_CLEAR : COM_CLEAR_SET) : COM_NORMAL); // Set compare modes
-    _SET_COM(5, B, dcb ? (dcb < 0 ? COM_SET_CLEAR : COM_CLEAR_SET) : COM_NORMAL);
-    _SET_COM(5, C, dcc ? (dcc < 0 ? COM_SET_CLEAR : COM_CLEAR_SET) : COM_NORMAL);
-
-    SET_WGM(5, FAST_PWM_ICRn);            // Fast PWM with ICR5 as TOP
-
-    //SERIAL_ECHOLNPGM("Timer 5 Settings:");
-    //SERIAL_ECHOLNPAIR("  Prescaler=", prescaler);
-    //SERIAL_ECHOLNPAIR("        TOP=", ICR5);
-    //SERIAL_ECHOLNPAIR("      OCR5A=", OCR5A);
-    //SERIAL_ECHOLNPAIR("      OCR5B=", OCR5B);
-    //SERIAL_ECHOLNPAIR("      OCR5C=", OCR5C);
-  }
-  else {
-    // Restore the default for Timer 5
-    SET_WGM(5, PWM_PC_8);                 // PWM 8-bit (Phase Correct)
-    SET_COMS(5, NORMAL, NORMAL, NORMAL);  // Do nothing
-    SET_CS(5, PRESCALER_64);              // 16MHz / 64 = 250KHz
-    OCR5A = OCR5B = OCR5C = 0;
-  }
-  return round(count);
-}
-#endif
-
 #endif // FASTIO_EXT_START
 #endif // __AVR__
--- a/Marlin/src/HAL/AVR/fastio.h
+++ b/Marlin/src/HAL/AVR/fastio.h
@@ -16,7 +16,7 @@
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 *
 */
 #pragma once
@@ -29,17 +29,11 @@

 #include <avr/io.h>

-#if defined(__AVR_AT90USB1287__) || defined(__AVR_AT90USB1286__) || defined(__AVR_AT90USB1286P__) || defined(__AVR_AT90USB646__) || defined(__AVR_AT90USB646P__) || defined(__AVR_AT90USB647__)
-  #define AVR_AT90USB1286_FAMILY 1
-#elif defined(__AVR_ATmega644__) || defined(__AVR_ATmega644P__) || defined(__AVR_ATmega644PA__) || defined(__AVR_ATmega1284P__)
-  #define AVR_ATmega1284_FAMILY 1
-#elif defined(__AVR_ATmega1280__) || defined(__AVR_ATmega2560__)
-  #define AVR_ATmega2560_FAMILY 1
-#elif defined(__AVR_ATmega1281__) || defined(__AVR_ATmega2561__)
-  #define AVR_ATmega2561_FAMILY 1
-#elif defined(__AVR_ATmega168__) || defined(__AVR_ATmega328__) || defined(__AVR_ATmega328P__)
-  #define AVR_ATmega328_FAMILY 1
-#endif
+#define AVR_AT90USB1286_FAMILY (defined(__AVR_AT90USB1287__) || defined(__AVR_AT90USB1286__) || defined(__AVR_AT90USB1286P__) || defined(__AVR_AT90USB646__) || defined(__AVR_AT90USB646P__) || defined(__AVR_AT90USB647__))
+#define AVR_ATmega1284_FAMILY (defined(__AVR_ATmega644__) || defined(__AVR_ATmega644P__) || defined(__AVR_ATmega644PA__) || defined(__AVR_ATmega1284P__))
+#define AVR_ATmega2560_FAMILY (defined(__AVR_ATmega1280__) || defined(__AVR_ATmega2560__))
+#define AVR_ATmega2561_FAMILY (defined(__AVR_ATmega1281__) || defined(__AVR_ATmega2561__))
+#define AVR_ATmega328_FAMILY (defined(__AVR_ATmega168__) || defined(__AVR_ATmega328__) || defined(__AVR_ATmega328P__))

 /**
 * Include Ports and Functions
@@ -63,7 +57,7 @@
 *
 * Now you can simply SET_OUTPUT(PIN); WRITE(PIN, HIGH); WRITE(PIN, LOW);
 *
- * Why double up on these macros? see https://gcc.gnu.org/onlinedocs/cpp/Stringification.html
+ * Why double up on these macros? see http://gcc.gnu.org/onlinedocs/cpp/Stringification.html
 */

 #define _READ(IO)             TEST(DIO ## IO ## _RPORT, DIO ## IO ## _PIN)
@@ -285,7 +279,7 @@ enum ClockSource2 : char {
 */

 // Determine which harware PWMs are already in use
-#define _PWM_CHK_FAN_B(P) (P == E0_AUTO_FAN_PIN || P == E1_AUTO_FAN_PIN || P == E2_AUTO_FAN_PIN || P == E3_AUTO_FAN_PIN || P == E4_AUTO_FAN_PIN || P == E5_AUTO_FAN_PIN || P == E6_AUTO_FAN_PIN || P == E7_AUTO_FAN_PIN || P == CHAMBER_AUTO_FAN_PIN || P == COOLER_AUTO_FAN_PIN)
+#define _PWM_CHK_FAN_B(P) (P == E0_AUTO_FAN_PIN || P == E1_AUTO_FAN_PIN || P == E2_AUTO_FAN_PIN || P == E3_AUTO_FAN_PIN || P == E4_AUTO_FAN_PIN || P == E5_AUTO_FAN_PIN || P == E6_AUTO_FAN_PIN || P == E7_AUTO_FAN_PIN || P == CHAMBER_AUTO_FAN_PIN)
 #if PIN_EXISTS(CONTROLLER_FAN)
  #define PWM_CHK_FAN_B(P) (_PWM_CHK_FAN_B(P) || P == CONTROLLER_FAN_PIN)
 #else
--- a/Marlin/src/HAL/AVR/fastio/fastio_1280.h
+++ b/Marlin/src/HAL/AVR/fastio/fastio_1280.h
@@ -16,7 +16,7 @@
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 *
 */
 #pragma once
--- a/Marlin/src/HAL/AVR/fastio/fastio_1281.h
+++ b/Marlin/src/HAL/AVR/fastio/fastio_1281.h
@@ -16,7 +16,7 @@
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 *
 */
 #pragma once
--- a/Marlin/src/HAL/AVR/fastio/fastio_168.h
+++ b/Marlin/src/HAL/AVR/fastio/fastio_168.h
@@ -16,7 +16,7 @@
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 *
 */
 #pragma once
--- a/Marlin/src/HAL/AVR/fastio/fastio_644.h
+++ b/Marlin/src/HAL/AVR/fastio/fastio_644.h
@@ -16,7 +16,7 @@
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 *
 */
 #pragma once
--- a/Marlin/src/HAL/AVR/fastio/fastio_AT90USB.h
+++ b/Marlin/src/HAL/AVR/fastio/fastio_AT90USB.h
@@ -16,7 +16,7 @@
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 *
 */
 #pragma once
--- a/Marlin/src/HAL/AVR/inc/Conditionals_LCD.h
+++ b/Marlin/src/HAL/AVR/inc/Conditionals_LCD.h
@@ -16,11 +16,7 @@
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 *
 */
 #pragma once
-
-#if HAS_SPI_TFT || HAS_FSMC_TFT
-  #error "Sorry! TFT displays are not available for HAL/AVR."
-#endif
--- a/Marlin/src/HAL/AVR/inc/Conditionals_adv.h
+++ b/Marlin/src/HAL/AVR/inc/Conditionals_adv.h
@@ -16,7 +16,7 @@
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 *
 */
 #pragma once
--- a/Marlin/src/HAL/AVR/inc/Conditionals_post.h
+++ b/Marlin/src/HAL/AVR/inc/Conditionals_post.h
@@ -16,7 +16,7 @@
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 *
 */
 #pragma once
--- a/Marlin/src/HAL/AVR/inc/SanityCheck.h
+++ b/Marlin/src/HAL/AVR/inc/SanityCheck.h
@@ -16,7 +16,7 @@
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 *
 */
 #pragma once
@@ -25,6 +25,16 @@
 * Test AVR-specific configuration values for errors at compile-time.
 */

+/**
+ * Digipot requirement
+ */
+ #if ENABLED(DIGIPOT_MCP4018)
+  #if !defined(DIGIPOTS_I2C_SDA_X) || !defined(DIGIPOTS_I2C_SDA_Y) || !defined(DIGIPOTS_I2C_SDA_Z) \
+    || !defined(DIGIPOTS_I2C_SDA_E0) || !defined(DIGIPOTS_I2C_SDA_E1)
+      #error "DIGIPOT_MCP4018 requires DIGIPOTS_I2C_SDA_* pins to be defined."
+  #endif
+#endif
+
 /**
 * Checks for FAST PWM
 */
@@ -36,30 +46,20 @@
 * Sanity checks for Spindle / Laser PWM
 */
 #if ENABLED(SPINDLE_LASER_PWM)
-  #include "../ServoTimers.h"   // Needed to check timer availability (_useTimer3)
  #if SPINDLE_LASER_PWM_PIN == 4 || WITHIN(SPINDLE_LASER_PWM_PIN, 11, 13)
    #error "Counter/Timer for SPINDLE_LASER_PWM_PIN is used by a system interrupt."
-  #elif NUM_SERVOS > 0 && defined(_useTimer3) && (WITHIN(SPINDLE_LASER_PWM_PIN, 2, 3) || SPINDLE_LASER_PWM_PIN == 5)
+  #elif NUM_SERVOS > 0 && (WITHIN(SPINDLE_LASER_PWM_PIN, 2, 3) || SPINDLE_LASER_PWM_PIN == 5)
    #error "Counter/Timer for SPINDLE_LASER_PWM_PIN is used by the servo system."
  #endif
-#elif defined(SPINDLE_LASER_FREQUENCY)
-  #error "SPINDLE_LASER_FREQUENCY requires SPINDLE_LASER_PWM."
 #endif

 /**
 * The Trinamic library includes SoftwareSerial.h, leading to a compile error.
 */
-#if BOTH(HAS_TRINAMIC_CONFIG, ENDSTOP_INTERRUPTS_FEATURE)
+#if HAS_TRINAMIC_CONFIG && ENABLED(ENDSTOP_INTERRUPTS_FEATURE)
  #error "TMCStepper includes SoftwareSerial.h which is incompatible with ENDSTOP_INTERRUPTS_FEATURE. Disable ENDSTOP_INTERRUPTS_FEATURE to continue."
 #endif

-#if BOTH(HAS_TMC_SW_SERIAL, MONITOR_DRIVER_STATUS)
+#if HAS_TMC_SW_SERIAL && ENABLED(MONITOR_DRIVER_STATUS)
  #error "MONITOR_DRIVER_STATUS causes performance issues when used with SoftwareSerial-connected drivers. Disable MONITOR_DRIVER_STATUS or use hardware serial to continue."
 #endif
-
-/**
- * Postmortem debugging
- */
-#if ENABLED(POSTMORTEM_DEBUGGING)
-  #error "POSTMORTEM_DEBUGGING is not supported on AVR boards."
-#endif
--- a/Marlin/src/HAL/AVR/math.h
+++ b/Marlin/src/HAL/AVR/math.h
@@ -16,7 +16,7 @@
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 *
 */
 #pragma once
--- a/Marlin/src/HAL/AVR/pinsDebug.h
+++ b/Marlin/src/HAL/AVR/pinsDebug.h
@@ -13,7 +13,7 @@
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 *
 */
 #pragma once
@@ -26,9 +26,7 @@

 #define NUMBER_PINS_TOTAL NUM_DIGITAL_PINS

-#if MB(BQ_ZUM_MEGA_3D, MIGHTYBOARD_REVE, MINIRAMBO, SCOOVO_X9H, TRIGORILLA_14)
-  #define AVR_ATmega2560_FAMILY_PLUS_70 1
-#endif
+#define AVR_ATmega2560_FAMILY_PLUS_70 MB(BQ_ZUM_MEGA_3D, MIGHTYBOARD_REVE, MINIRAMBO, SCOOVO_X9H)

 #if AVR_AT90USB1286_FAMILY

@@ -38,7 +36,7 @@
  // portModeRegister takes a different argument
  #define digitalPinToTimer_DEBUG(p) digitalPinToTimer(p)
  #define digitalPinToBitMask_DEBUG(p) digitalPinToBitMask(p)
-  #define digitalPinToPort_DEBUG(p) digitalPinToPort(p)
+  #define digitalPinToPort_DEBUG(p) digitalPinToPort_Teensy(p)
  #define GET_PINMODE(pin) (*portModeRegister(pin) & digitalPinToBitMask_DEBUG(pin))

 #elif AVR_ATmega2560_FAMILY_PLUS_70   // So we can access/display all the pins on boards using more than 70
@@ -235,8 +233,8 @@ static void print_is_also_tied() { SERIAL_ECHOPGM(" is also tied to this pin");

 inline void com_print(const uint8_t N, const uint8_t Z) {
  const uint8_t *TCCRA = (uint8_t*)TCCR_A(N);
-  SERIAL_ECHOPAIR("    COM", AS_CHAR('0' + N));
-  SERIAL_CHAR(Z);
+  SERIAL_ECHOPGM("    COM");
+  SERIAL_CHAR('0' + N, Z);
  SERIAL_ECHOPAIR(": ", int((*TCCRA >> (6 - Z * 2)) & 0x03));
 }

@@ -247,8 +245,8 @@ void timer_prefix(uint8_t T, char L, uint8_t N) {  // T - timer    L - pwm  N -
  uint8_t WGM = (((*TCCRB & _BV(WGM_2)) >> 1) | (*TCCRA & (_BV(WGM_0) | _BV(WGM_1))));
  if (N == 4) WGM |= ((*TCCRB & _BV(WGM_3)) >> 1);

-  SERIAL_ECHOPAIR("    TIMER", AS_CHAR(T + '0'));
-  SERIAL_CHAR(L);
+  SERIAL_ECHOPGM("    TIMER");
+  SERIAL_CHAR(T + '0', L);
  SERIAL_ECHO_SP(3);

  if (N == 3) {
@@ -262,11 +260,19 @@ void timer_prefix(uint8_t T, char L, uint8_t N) {  // T - timer    L - pwm  N -
  SERIAL_ECHOPAIR("    WGM: ", WGM);
  com_print(T,L);
  SERIAL_ECHOPAIR("    CS: ", (*TCCRB & (_BV(CS_0) | _BV(CS_1) | _BV(CS_2)) ));
-  SERIAL_ECHOPAIR("    TCCR", AS_CHAR(T + '0'), "A: ", *TCCRA);
-  SERIAL_ECHOPAIR("    TCCR", AS_CHAR(T + '0'), "B: ", *TCCRB);
+
+  SERIAL_ECHOPGM("    TCCR");
+  SERIAL_CHAR(T + '0');
+  SERIAL_ECHOPAIR("A: ", *TCCRA);
+
+  SERIAL_ECHOPGM("    TCCR");
+  SERIAL_CHAR(T + '0');
+  SERIAL_ECHOPAIR("B: ", *TCCRB);

  const uint8_t *TMSK = (uint8_t*)TIMSK(T);
-  SERIAL_ECHOPAIR("    TIMSK", AS_CHAR(T + '0'), ": ", *TMSK);
+  SERIAL_ECHOPGM("    TIMSK");
+  SERIAL_CHAR(T + '0');
+  SERIAL_ECHOPAIR(": ", *TMSK);

  const uint8_t OCIE = L - 'A' + 1;
  if (N == 3) { if (WGM == 0 || WGM == 2 || WGM ==  4 || WGM ==  6) err_is_counter(); }
--- a/Marlin/src/HAL/AVR/pinsDebug_Teensyduino.h
+++ b/Marlin/src/HAL/AVR/pinsDebug_Teensyduino.h
@@ -13,7 +13,7 @@
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 *
 */
 #pragma once
--- a/Marlin/src/HAL/AVR/pinsDebug_plus_70.h
+++ b/Marlin/src/HAL/AVR/pinsDebug_plus_70.h
@@ -13,7 +13,7 @@
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 *
 */
 #pragma once
@@ -22,12 +22,15 @@
 * Structures for 2560 family boards that use more than 70 pins
 */

-#if MB(BQ_ZUM_MEGA_3D, MINIRAMBO, SCOOVO_X9H, TRIGORILLA_14)
-  #undef NUM_DIGITAL_PINS
+#undef NUM_DIGITAL_PINS
+#if MB(BQ_ZUM_MEGA_3D)
  #define NUM_DIGITAL_PINS            85
 #elif MB(MIGHTYBOARD_REVE)
-  #undef NUM_DIGITAL_PINS
  #define NUM_DIGITAL_PINS            80
+#elif MB(MINIRAMBO)
+  #define NUM_DIGITAL_PINS            85
+#elif MB(SCOOVO_X9H)
+  #define NUM_DIGITAL_PINS            85
 #endif

 #define PA 1
--- a/Marlin/src/HAL/AVR/spi_pins.h
+++ b/Marlin/src/HAL/AVR/spi_pins.h
@@ -16,7 +16,7 @@
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 *
 */
 #pragma once
@@ -51,15 +51,15 @@
  #define AVR_SS_PIN   16
 #endif

-#ifndef SD_SCK_PIN
-  #define SD_SCK_PIN  AVR_SCK_PIN
+#ifndef SCK_PIN
+  #define SCK_PIN  AVR_SCK_PIN
 #endif
-#ifndef SD_MISO_PIN
-  #define SD_MISO_PIN AVR_MISO_PIN
+#ifndef MISO_PIN
+  #define MISO_PIN AVR_MISO_PIN
 #endif
-#ifndef SD_MOSI_PIN
-  #define SD_MOSI_PIN AVR_MOSI_PIN
+#ifndef MOSI_PIN
+  #define MOSI_PIN AVR_MOSI_PIN
 #endif
-#ifndef SD_SS_PIN
-  #define SD_SS_PIN   AVR_SS_PIN
+#ifndef SS_PIN
+  #define SS_PIN   AVR_SS_PIN
 #endif
--- a/Marlin/src/HAL/AVR/timers.h
+++ b/Marlin/src/HAL/AVR/timers.h
@@ -1,260 +0,0 @@
-/**
- * Marlin 3D Printer Firmware
- * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
- * Copyright (c) 2016 Bob Cousins bobcousins42@googlemail.com
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <https://www.gnu.org/licenses/>.
- *
- */
-#pragma once
-
-#include <stdint.h>
-
-// ------------------------
-// Types
-// ------------------------
-
-typedef uint16_t hal_timer_t;
-#define HAL_TIMER_TYPE_MAX 0xFFFF
-
-// ------------------------
-// Defines
-// ------------------------
-
-#define HAL_TIMER_RATE          ((F_CPU) / 8)    // i.e., 2MHz or 2.5MHz
-
-#ifndef STEP_TIMER_NUM
-  #define STEP_TIMER_NUM        1
-#endif
-#ifndef PULSE_TIMER_NUM
-  #define PULSE_TIMER_NUM       STEP_TIMER_NUM
-#endif
-#ifndef TEMP_TIMER_NUM
-  #define TEMP_TIMER_NUM        0
-#endif
-
-#define TEMP_TIMER_FREQUENCY    ((F_CPU) / 64.0 / 256.0)
-
-#define STEPPER_TIMER_RATE      HAL_TIMER_RATE
-#define STEPPER_TIMER_PRESCALE  8
-#define STEPPER_TIMER_TICKS_PER_US ((STEPPER_TIMER_RATE) / 1000000) // Cannot be of type double
-
-#define PULSE_TIMER_RATE       STEPPER_TIMER_RATE   // frequency of pulse timer
-#define PULSE_TIMER_PRESCALE   STEPPER_TIMER_PRESCALE
-#define PULSE_TIMER_TICKS_PER_US STEPPER_TIMER_TICKS_PER_US
-
-#define ENABLE_STEPPER_DRIVER_INTERRUPT()  SBI(TIMSK1, OCIE1A)
-#define DISABLE_STEPPER_DRIVER_INTERRUPT() CBI(TIMSK1, OCIE1A)
-#define STEPPER_ISR_ENABLED()             TEST(TIMSK1, OCIE1A)
-
-#define ENABLE_TEMPERATURE_INTERRUPT()     SBI(TIMSK0, OCIE0B)
-#define DISABLE_TEMPERATURE_INTERRUPT()    CBI(TIMSK0, OCIE0B)
-#define TEMPERATURE_ISR_ENABLED()         TEST(TIMSK0, OCIE0B)
-
-FORCE_INLINE void HAL_timer_start(const uint8_t timer_num, const uint32_t) {
-  switch (timer_num) {
-    case STEP_TIMER_NUM:
-      // waveform generation = 0100 = CTC
-      SET_WGM(1, CTC_OCRnA);
-
-      // output mode = 00 (disconnected)
-      SET_COMA(1, NORMAL);
-
-      // Set the timer pre-scaler
-      // Generally we use a divider of 8, resulting in a 2MHz timer
-      // frequency on a 16MHz MCU. If you are going to change this, be
-      // sure to regenerate speed_lookuptable.h with
-      // create_speed_lookuptable.py
-      SET_CS(1, PRESCALER_8);  //  CS 2 = 1/8 prescaler
-
-      // Init Stepper ISR to 122 Hz for quick starting
-      // (F_CPU) / (STEPPER_TIMER_PRESCALE) / frequency
-      OCR1A = 0x4000;
-      TCNT1 = 0;
-      break;
-
-    case TEMP_TIMER_NUM:
-      // Use timer0 for temperature measurement
-      // Interleave temperature interrupt with millies interrupt
-      OCR0B = 128;
-      break;
-  }
-}
-
-#define TIMER_OCR_1             OCR1A
-#define TIMER_COUNTER_1         TCNT1
-
-#define TIMER_OCR_0             OCR0A
-#define TIMER_COUNTER_0         TCNT0
-
-#define _CAT(a,V...) a##V
-#define HAL_timer_set_compare(timer, compare) (_CAT(TIMER_OCR_, timer) = compare)
-#define HAL_timer_get_compare(timer) _CAT(TIMER_OCR_, timer)
-#define HAL_timer_get_count(timer) _CAT(TIMER_COUNTER_, timer)
-
-/**
- * On AVR there is no hardware prioritization and preemption of
- * interrupts, so this emulates it. The UART has first priority
- * (otherwise, characters will be lost due to UART overflow).
- * Then: Stepper, Endstops, Temperature, and -finally- all others.
- */
-#define HAL_timer_isr_prologue(TIMER_NUM)
-#define HAL_timer_isr_epilogue(TIMER_NUM)
-
-/* 18 cycles maximum latency */
-#ifndef HAL_STEP_TIMER_ISR
-
-#define HAL_STEP_TIMER_ISR() \
-extern "C" void TIMER1_COMPA_vect() __attribute__ ((signal, naked, used, externally_visible)); \
-extern "C" void TIMER1_COMPA_vect_bottom() asm ("TIMER1_COMPA_vect_bottom") __attribute__ ((used, externally_visible, noinline)); \
-void TIMER1_COMPA_vect() { \
-  __asm__ __volatile__ ( \
-    A("push r16")                      /* 2 Save R16 */ \
-    A("in r16, __SREG__")              /* 1 Get SREG */ \
-    A("push r16")                      /* 2 Save SREG into stack */ \
-    A("lds r16, %[timsk0]")            /* 2 Load into R0 the Temperature timer Interrupt mask register */ \
-    A("push r16")                      /* 2 Save TIMSK0 into the stack */ \
-    A("andi r16,~%[msk0]")             /* 1 Disable the temperature ISR */ \
-    A("sts %[timsk0], r16")            /* 2 And set the new value */ \
-    A("lds r16, %[timsk1]")            /* 2 Load into R0 the stepper timer Interrupt mask register [TIMSK1] */ \
-    A("andi r16,~%[msk1]")             /* 1 Disable the stepper ISR */ \
-    A("sts %[timsk1], r16")            /* 2 And set the new value */ \
-    A("push r16")                      /* 2 Save TIMSK1 into stack */ \
-    A("in r16, 0x3B")                  /* 1 Get RAMPZ register */ \
-    A("push r16")                      /* 2 Save RAMPZ into stack */ \
-    A("in r16, 0x3C")                  /* 1 Get EIND register */ \
-    A("push r0")                       /* C runtime can modify all the following registers without restoring them */ \
-    A("push r1")                       \
-    A("push r18")                      \
-    A("push r19")                      \
-    A("push r20")                      \
-    A("push r21")                      \
-    A("push r22")                      \
-    A("push r23")                      \
-    A("push r24")                      \
-    A("push r25")                      \
-    A("push r26")                      \
-    A("push r27")                      \
-    A("push r30")                      \
-    A("push r31")                      \
-    A("clr r1")                        /* C runtime expects this register to be 0 */ \
-    A("call TIMER1_COMPA_vect_bottom") /* Call the bottom handler - No inlining allowed, otherwise registers used are not saved */   \
-    A("pop r31")                       \
-    A("pop r30")                       \
-    A("pop r27")                       \
-    A("pop r26")                       \
-    A("pop r25")                       \
-    A("pop r24")                       \
-    A("pop r23")                       \
-    A("pop r22")                       \
-    A("pop r21")                       \
-    A("pop r20")                       \
-    A("pop r19")                       \
-    A("pop r18")                       \
-    A("pop r1")                        \
-    A("pop r0")                        \
-    A("out 0x3C, r16")                 /* 1 Restore EIND register */ \
-    A("pop r16")                       /* 2 Get the original RAMPZ register value */ \
-    A("out 0x3B, r16")                 /* 1 Restore RAMPZ register to its original value */ \
-    A("pop r16")                       /* 2 Get the original TIMSK1 value but with stepper ISR disabled */ \
-    A("ori r16,%[msk1]")               /* 1 Reenable the stepper ISR */ \
-    A("cli")                           /* 1 Disable global interrupts - Reenabling Stepper ISR can reenter amd temperature can reenter, and we want that, if it happens, after this ISR has ended */ \
-    A("sts %[timsk1], r16")            /* 2 And restore the old value - This reenables the stepper ISR */ \
-    A("pop r16")                       /* 2 Get the temperature timer Interrupt mask register [TIMSK0] */ \
-    A("sts %[timsk0], r16")            /* 2 And restore the old value - This reenables the temperature ISR */ \
-    A("pop r16")                       /* 2 Get the old SREG value */ \
-    A("out __SREG__, r16")             /* 1 And restore the SREG value */ \
-    A("pop r16")                       /* 2 Restore R16 value */ \
-    A("reti")                          /* 4 Return from interrupt */ \
-    :                                   \
-    : [timsk0] "i" ((uint16_t)&TIMSK0), \
-      [timsk1] "i" ((uint16_t)&TIMSK1), \
-      [msk0] "M" ((uint8_t)(1<<OCIE0B)),\
-      [msk1] "M" ((uint8_t)(1<<OCIE1A)) \
-    : \
-  ); \
-} \
-void TIMER1_COMPA_vect_bottom()
-
-#endif // HAL_STEP_TIMER_ISR
-
-#ifndef HAL_TEMP_TIMER_ISR
-
-/* 14 cycles maximum latency */
-#define HAL_TEMP_TIMER_ISR() \
-extern "C" void TIMER0_COMPB_vect() __attribute__ ((signal, naked, used, externally_visible)); \
-extern "C" void TIMER0_COMPB_vect_bottom()  asm ("TIMER0_COMPB_vect_bottom") __attribute__ ((used, externally_visible, noinline)); \
-void TIMER0_COMPB_vect() { \
-  __asm__ __volatile__ ( \
-    A("push r16")                       /* 2 Save R16 */ \
-    A("in r16, __SREG__")               /* 1 Get SREG */ \
-    A("push r16")                       /* 2 Save SREG into stack */ \
-    A("lds r16, %[timsk0]")             /* 2 Load into R0 the Temperature timer Interrupt mask register */ \
-    A("andi r16,~%[msk0]")              /* 1 Disable the temperature ISR */ \
-    A("sts %[timsk0], r16")             /* 2 And set the new value */ \
-    A("sei")                            /* 1 Enable global interrupts - It is safe, as the temperature ISR is disabled, so we cannot reenter it */    \
-    A("push r16")                       /* 2 Save TIMSK0 into stack */ \
-    A("in r16, 0x3B")                   /* 1 Get RAMPZ register */ \
-    A("push r16")                       /* 2 Save RAMPZ into stack */ \
-    A("in r16, 0x3C")                   /* 1 Get EIND register */ \
-    A("push r0")                        /* C runtime can modify all the following registers without restoring them */ \
-    A("push r1")                        \
-    A("push r18")                       \
-    A("push r19")                       \
-    A("push r20")                       \
-    A("push r21")                       \
-    A("push r22")                       \
-    A("push r23")                       \
-    A("push r24")                       \
-    A("push r25")                       \
-    A("push r26")                       \
-    A("push r27")                       \
-    A("push r30")                       \
-    A("push r31")                       \
-    A("clr r1")                         /* C runtime expects this register to be 0 */ \
-    A("call TIMER0_COMPB_vect_bottom")  /* Call the bottom handler - No inlining allowed, otherwise registers used are not saved */   \
-    A("pop r31")                        \
-    A("pop r30")                        \
-    A("pop r27")                        \
-    A("pop r26")                        \
-    A("pop r25")                        \
-    A("pop r24")                        \
-    A("pop r23")                        \
-    A("pop r22")                        \
-    A("pop r21")                        \
-    A("pop r20")                        \
-    A("pop r19")                        \
-    A("pop r18")                        \
-    A("pop r1")                         \
-    A("pop r0")                         \
-    A("out 0x3C, r16")                  /* 1 Restore EIND register */ \
-    A("pop r16")                        /* 2 Get the original RAMPZ register value */ \
-    A("out 0x3B, r16")                  /* 1 Restore RAMPZ register to its original value */ \
-    A("pop r16")                        /* 2 Get the original TIMSK0 value but with temperature ISR disabled */ \
-    A("ori r16,%[msk0]")                /* 1 Enable temperature ISR */ \
-    A("cli")                            /* 1 Disable global interrupts - We must do this, as we will reenable the temperature ISR, and we don't want to reenter this handler until the current one is done */ \
-    A("sts %[timsk0], r16")             /* 2 And restore the old value */ \
-    A("pop r16")                        /* 2 Get the old SREG */ \
-    A("out __SREG__, r16")              /* 1 And restore the SREG value */ \
-    A("pop r16")                        /* 2 Restore R16 */ \
-    A("reti")                           /* 4 Return from interrupt */ \
-    :                                   \
-    : [timsk0] "i"((uint16_t)&TIMSK0),  \
-      [msk0] "M" ((uint8_t)(1<<OCIE0B)) \
-    : \
-  ); \
-} \
-void TIMER0_COMPB_vect_bottom()
-
-#endif // HAL_TEMP_TIMER_ISR
--- a/Marlin/src/HAL/AVR/u8g_com_HAL_AVR_sw_spi.cpp
+++ b/Marlin/src/HAL/AVR/u8g_com_HAL_AVR_sw_spi.cpp
@@ -16,7 +16,7 @@
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 *
 */

@@ -57,7 +57,7 @@

 #include "../../inc/MarlinConfigPre.h"

-#if HAS_MARLINUI_U8GLIB
+#if HAS_GRAPHICAL_LCD

 #include "../shared/Marduino.h"
 #include "../shared/Delay.h"
@@ -189,5 +189,5 @@ uint8_t u8g_com_HAL_AVR_sw_sp_fn(u8g_t *u8g, uint8_t msg, uint8_t arg_val, void
  return 1;
 }

-#endif // HAS_MARLINUI_U8GLIB
+#endif // HAS_GRAPHICAL_LCD
 #endif // ARDUINO_ARCH_SAM
--- a/Marlin/src/HAL/AVR/watchdog.cpp
+++ b/Marlin/src/HAL/AVR/watchdog.cpp
@@ -16,9 +16,10 @@
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 *
 */
+
 #ifdef __AVR__

 #include "../../inc/MarlinConfig.h"
--- a/Marlin/src/HAL/AVR/watchdog.h
+++ b/Marlin/src/HAL/AVR/watchdog.h
@@ -16,7 +16,7 @@
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 *
 */
 #pragma once
--- a/Marlin/src/HAL/DUE/DebugMonitor.cpp
+++ b/Marlin/src/HAL/DUE/DebugMonitor.cpp
@@ -0,0 +1,343 @@
+/**
+ * Marlin 3D Printer Firmware
+ * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
+ *
+ * Based on Sprinter and grbl.
+ * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+#ifdef ARDUINO_ARCH_SAM
+
+#include "../../core/macros.h"
+#include "../../core/serial.h"
+
+#include "../shared/backtrace/unwinder.h"
+#include "../shared/backtrace/unwmemaccess.h"
+
+#include <stdarg.h>
+
+// Debug monitor that dumps to the Programming port all status when
+// an exception or WDT timeout happens - And then resets the board
+
+// All the Monitor routines must run with interrupts disabled and
+// under an ISR execution context. That is why we cannot reuse the
+// Serial interrupt routines or any C runtime, as we don't know the
+// state we are when running them
+
+// A SW memory barrier, to ensure GCC does not overoptimize loops
+#define sw_barrier() __asm__ volatile("": : :"memory");
+
+// (re)initialize UART0 as a monitor output to 250000,n,8,1
+static void TXBegin() {
+
+  // Disable UART interrupt in NVIC
+  NVIC_DisableIRQ( UART_IRQn );
+
+  // We NEED memory barriers to ensure Interrupts are actually disabled!
+  // ( https://dzone.com/articles/nvic-disabling-interrupts-on-arm-cortex-m-and-the )
+  __DSB();
+  __ISB();
+
+  // Disable clock
+  pmc_disable_periph_clk( ID_UART );
+
+  // Configure PMC
+  pmc_enable_periph_clk( ID_UART );
+
+  // Disable PDC channel
+  UART->UART_PTCR = UART_PTCR_RXTDIS | UART_PTCR_TXTDIS;
+
+  // Reset and disable receiver and transmitter
+  UART->UART_CR = UART_CR_RSTRX | UART_CR_RSTTX | UART_CR_RXDIS | UART_CR_TXDIS;
+
+  // Configure mode: 8bit, No parity, 1 bit stop
+  UART->UART_MR = UART_MR_CHMODE_NORMAL | US_MR_CHRL_8_BIT | US_MR_NBSTOP_1_BIT | UART_MR_PAR_NO;
+
+  // Configure baudrate (asynchronous, no oversampling) to BAUDRATE bauds
+  UART->UART_BRGR = (SystemCoreClock / (BAUDRATE << 4));
+
+  // Enable receiver and transmitter
+  UART->UART_CR = UART_CR_RXEN | UART_CR_TXEN;
+}
+
+// Send character through UART with no interrupts
+static void TX(char c) {
+  while (!(UART->UART_SR & UART_SR_TXRDY)) { WDT_Restart(WDT); sw_barrier(); };
+  UART->UART_THR = c;
+}
+
+// Send String through UART
+static void TX(const char* s) {
+  while (*s) TX(*s++);
+}
+
+static void TXDigit(uint32_t d) {
+  if (d < 10) TX((char)(d+'0'));
+  else if (d < 16) TX((char)(d+'A'-10));
+  else TX('?');
+}
+
+// Send Hex number thru UART
+static void TXHex(uint32_t v) {
+  TX("0x");
+  for (uint8_t i = 0; i < 8; i++, v <<= 4)
+    TXDigit((v >> 28) & 0xF);
+}
+
+// Send Decimal number thru UART
+static void TXDec(uint32_t v) {
+  if (!v) {
+    TX('0');
+    return;
+  }
+
+  char nbrs[14];
+  char *p = &nbrs[0];
+  while (v != 0) {
+    *p++ = '0' + (v % 10);
+    v /= 10;
+  }
+  do {
+    p--;
+    TX(*p);
+  } while (p != &nbrs[0]);
+}
+
+// Dump a backtrace entry
+static bool UnwReportOut(void* ctx, const UnwReport* bte) {
+  int* p = (int*)ctx;
+
+  (*p)++;
+  TX('#'); TXDec(*p); TX(" : ");
+  TX(bte->name?bte->name:"unknown"); TX('@'); TXHex(bte->function);
+  TX('+'); TXDec(bte->address - bte->function);
+  TX(" PC:");TXHex(bte->address); TX('\n');
+  return true;
+}
+
+#ifdef UNW_DEBUG
+  void UnwPrintf(const char* format, ...) {
+    char dest[256];
+    va_list argptr;
+    va_start(argptr, format);
+    vsprintf(dest, format, argptr);
+    va_end(argptr);
+    TX(&dest[0]);
+  }
+#endif
+
+/* Table of function pointers for passing to the unwinder */
+static const UnwindCallbacks UnwCallbacks = {
+  UnwReportOut,
+  UnwReadW,
+  UnwReadH,
+  UnwReadB
+  #ifdef UNW_DEBUG
+   , UnwPrintf
+  #endif
+};
+
+/**
+ * HardFaultHandler_C:
+ * This is called from the HardFault_HandlerAsm with a pointer the Fault stack
+ * as the parameter. We can then read the values from the stack and place them
+ * into local variables for ease of reading.
+ * We then read the various Fault Status and Address Registers to help decode
+ * cause of the fault.
+ * The function ends with a BKPT instruction to force control back into the debugger
+ */
+extern "C"
+void HardFault_HandlerC(unsigned long *sp, unsigned long lr, unsigned long cause) {
+
+  static const char* causestr[] = {
+    "NMI","Hard","Mem","Bus","Usage","Debug","WDT","RSTC"
+  };
+
+  UnwindFrame btf;
+
+  // Dump report to the Programming port (interrupts are DISABLED)
+  TXBegin();
+  TX("\n\n## Software Fault detected ##\n");
+  TX("Cause: "); TX(causestr[cause]); TX('\n');
+
+  TX("R0   : "); TXHex(((unsigned long)sp[0])); TX('\n');
+  TX("R1   : "); TXHex(((unsigned long)sp[1])); TX('\n');
+  TX("R2   : "); TXHex(((unsigned long)sp[2])); TX('\n');
+  TX("R3   : "); TXHex(((unsigned long)sp[3])); TX('\n');
+  TX("R12  : "); TXHex(((unsigned long)sp[4])); TX('\n');
+  TX("LR   : "); TXHex(((unsigned long)sp[5])); TX('\n');
+  TX("PC   : "); TXHex(((unsigned long)sp[6])); TX('\n');
+  TX("PSR  : "); TXHex(((unsigned long)sp[7])); TX('\n');
+
+  // Configurable Fault Status Register
+  // Consists of MMSR, BFSR and UFSR
+  TX("CFSR : "); TXHex((*((volatile unsigned long *)(0xE000ED28)))); TX('\n');
+
+  // Hard Fault Status Register
+  TX("HFSR : "); TXHex((*((volatile unsigned long *)(0xE000ED2C)))); TX('\n');
+
+  // Debug Fault Status Register
+  TX("DFSR : "); TXHex((*((volatile unsigned long *)(0xE000ED30)))); TX('\n');
+
+  // Auxiliary Fault Status Register
+  TX("AFSR : "); TXHex((*((volatile unsigned long *)(0xE000ED3C)))); TX('\n');
+
+  // Read the Fault Address Registers. These may not contain valid values.
+  // Check BFARVALID/MMARVALID to see if they are valid values
+  // MemManage Fault Address Register
+  TX("MMAR : "); TXHex((*((volatile unsigned long *)(0xE000ED34)))); TX('\n');
+
+  // Bus Fault Address Register
+  TX("BFAR : "); TXHex((*((volatile unsigned long *)(0xE000ED38)))); TX('\n');
+
+  TX("ExcLR: "); TXHex(lr); TX('\n');
+  TX("ExcSP: "); TXHex((unsigned long)sp); TX('\n');
+
+  btf.sp = ((unsigned long)sp) + 8*4; // The original stack pointer
+  btf.fp = btf.sp;
+  btf.lr = ((unsigned long)sp[5]);
+  btf.pc = ((unsigned long)sp[6]) | 1; // Force Thumb, as CORTEX only support it
+
+  // Perform a backtrace
+  TX("\nBacktrace:\n\n");
+  int ctr = 0;
+  UnwindStart(&btf, &UnwCallbacks, &ctr);
+
+  // Disable all NVIC interrupts
+  NVIC->ICER[0] = 0xFFFFFFFF;
+  NVIC->ICER[1] = 0xFFFFFFFF;
+
+  // Relocate VTOR table to default position
+  SCB->VTOR = 0;
+
+  // Disable USB
+  otg_disable();
+
+  // Restart watchdog
+  WDT_Restart(WDT);
+
+  // Reset controller
+  NVIC_SystemReset();
+  for (;;) WDT_Restart(WDT);
+}
+
+__attribute__((naked)) void NMI_Handler() {
+  __asm__ __volatile__ (
+    ".syntax unified" "\n\t"
+    A("tst lr, #4")
+    A("ite eq")
+    A("mrseq r0, msp")
+    A("mrsne r0, psp")
+    A("mov r1,lr")
+    A("mov r2,#0")
+    A("b HardFault_HandlerC")
+  );
+}
+
+__attribute__((naked)) void HardFault_Handler() {
+  __asm__ __volatile__ (
+    ".syntax unified" "\n\t"
+    A("tst lr, #4")
+    A("ite eq")
+    A("mrseq r0, msp")
+    A("mrsne r0, psp")
+    A("mov r1,lr")
+    A("mov r2,#1")
+    A("b HardFault_HandlerC")
+  );
+}
+
+__attribute__((naked)) void MemManage_Handler() {
+  __asm__ __volatile__ (
+    ".syntax unified" "\n\t"
+    A("tst lr, #4")
+    A("ite eq")
+    A("mrseq r0, msp")
+    A("mrsne r0, psp")
+    A("mov r1,lr")
+    A("mov r2,#2")
+    A("b HardFault_HandlerC")
+  );
+}
+
+__attribute__((naked)) void BusFault_Handler() {
+  __asm__ __volatile__ (
+    ".syntax unified" "\n\t"
+    A("tst lr, #4")
+    A("ite eq")
+    A("mrseq r0, msp")
+    A("mrsne r0, psp")
+    A("mov r1,lr")
+    A("mov r2,#3")
+    A("b HardFault_HandlerC")
+  );
+}
+
+__attribute__((naked)) void UsageFault_Handler() {
+  __asm__ __volatile__ (
+    ".syntax unified" "\n\t"
+    A("tst lr, #4")
+    A("ite eq")
+    A("mrseq r0, msp")
+    A("mrsne r0, psp")
+    A("mov r1,lr")
+    A("mov r2,#4")
+    A("b HardFault_HandlerC")
+  );
+}
+
+__attribute__((naked)) void DebugMon_Handler() {
+  __asm__ __volatile__ (
+    ".syntax unified" "\n\t"
+    A("tst lr, #4")
+    A("ite eq")
+    A("mrseq r0, msp")
+    A("mrsne r0, psp")
+    A("mov r1,lr")
+    A("mov r2,#5")
+    A("b HardFault_HandlerC")
+  );
+}
+
+/* This is NOT an exception, it is an interrupt handler - Nevertheless, the framing is the same */
+__attribute__((naked)) void WDT_Handler() {
+  __asm__ __volatile__ (
+    ".syntax unified" "\n\t"
+    A("tst lr, #4")
+    A("ite eq")
+    A("mrseq r0, msp")
+    A("mrsne r0, psp")
+    A("mov r1,lr")
+    A("mov r2,#6")
+    A("b HardFault_HandlerC")
+  );
+}
+
+__attribute__((naked)) void RSTC_Handler() {
+  __asm__ __volatile__ (
+    ".syntax unified" "\n\t"
+    A("tst lr, #4")
+    A("ite eq")
+    A("mrseq r0, msp")
+    A("mrsne r0, psp")
+    A("mov r1,lr")
+    A("mov r2,#7")
+    A("b HardFault_HandlerC")
+  );
+}
+
+#endif // ARDUINO_ARCH_SAM
--- a/Marlin/src/HAL/DUE/EepromEmulation.cpp
+++ b/Marlin/src/HAL/DUE/EepromEmulation.cpp
@@ -1,10 +1,9 @@
 /**
 * Marlin 3D Printer Firmware
- *
 * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
- * Copyright (c) 2016 Bob Cousins bobcousins42@googlemail.com
- * Copyright (c) 2015-2016 Nico Tonnhofer wurstnase.reprap@gmail.com
- * Copyright (c) 2016 Victor Perez victor_pv@hotmail.com
+ *
+ * Based on Sprinter and grbl.
+ * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
@@ -17,14 +16,9 @@
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 *
 */
-#ifdef ARDUINO_ARCH_SAM
-
-#include "../../inc/MarlinConfig.h"
-
-#if ENABLED(FLASH_EEPROM_EMULATION)

 /* EEPROM emulation over flash with reduced wear
 *
@@ -53,14 +47,22 @@
 * per page. We can't emulate EE endurance with FLASH for all
 * bytes, but we can emulate endurance for a given percent of
 * bytes.
+ *
 */

-//#define EE_EMU_DEBUG
+#ifdef ARDUINO_ARCH_SAM
+
+#include "../../inc/MarlinConfig.h"
+
+#if ENABLED(FLASH_EEPROM_EMULATION)
+
+#include "../shared/Marduino.h"
+#include "../shared/eeprom_api.h"

 #define EEPROMSize     4096
 #define PagesPerGroup   128
 #define GroupCount        2
-#define PageSize        256U
+#define PageSize        256u

 /* Flash storage */
 typedef struct FLASH_SECTOR {
@@ -132,18 +134,15 @@ static uint8_t buffer[256] = {0},   // The RAM buffer to accumulate writes
               curPage = 0,         // Current FLASH page inside the group
               curGroup = 0xFF;     // Current FLASH group

-#define DEBUG_OUT ENABLED(EE_EMU_DEBUG)
-#include "../../core/debug_out.h"
+//#define EE_EMU_DEBUG
+#ifdef EE_EMU_DEBUG
+  static void ee_Dump(int page,const void* data) {

-static void ee_Dump(const int page, const void *data) {
-
-  #ifdef EE_EMU_DEBUG
-
-    const uint8_t *c = (const uint8_t*) data;
+    const uint8_t* c = (const uint8_t*) data;
    char buffer[80];

    sprintf_P(buffer, PSTR("Page: %d (0x%04x)\n"), page, page);
-    DEBUG_ECHO(buffer);
+    SERIAL_ECHO(buffer);

    char* p = &buffer[0];
    for (int i = 0; i< PageSize; ++i) {
@@ -153,16 +152,12 @@ static void ee_Dump(const int page, const void *data) {
      if ((i & 0xF) == 0xF) {
        *p++ = '\n';
        *p = 0;
-        DEBUG_ECHO(buffer);
+        SERIAL_ECHO(buffer);
        p = &buffer[0];
      }
    }
-
-  #else
-    UNUSED(page);
-    UNUSED(data);
-  #endif
-}
+  }
+#endif

 /* Flash Writing Protection Key */
 #define FWP_KEY    0x5Au
@@ -175,16 +170,17 @@ static void ee_Dump(const int page, const void *data) {
  #define EEFC_ERROR_FLAGS  (EEFC_FSR_FLOCKE | EEFC_FSR_FCMDE)
 #endif

+
 /**
 * Writes the contents of the specified page (no previous erase)
 * @param page    (page #)
 * @param data    (pointer to the data buffer)
 */
 __attribute__ ((long_call, section (".ramfunc")))
-static bool ee_PageWrite(uint16_t page, const void *data) {
+static bool ee_PageWrite(uint16_t page,const void* data) {

  uint16_t i;
-  uint32_t addrflash = uint32_t(getFlashStorage(page));
+  uint32_t addrflash = ((uint32_t)getFlashStorage(page));

  // Read the flash contents
  uint32_t pageContents[PageSize>>2];
@@ -199,11 +195,13 @@ static bool ee_PageWrite(uint16_t page, const void *data) {
  for (i = 0; i <PageSize >> 2; i++)
    pageContents[i] = (((uint32_t*)data)[i]) | (~(pageContents[i] ^ ((uint32_t*)data)[i]));

-  DEBUG_ECHO_START();
-  DEBUG_ECHOLNPAIR("EEPROM PageWrite   ", page);
-  DEBUG_ECHOLNPAIR(" in FLASH address ", (uint32_t)addrflash);
-  DEBUG_ECHOLNPAIR(" base address     ", (uint32_t)getFlashStorage(0));
-  DEBUG_FLUSH();
+  #ifdef EE_EMU_DEBUG
+    SERIAL_ECHO_START();
+    SERIAL_ECHOLNPAIR("EEPROM PageWrite   ", page);
+    SERIAL_ECHOLNPAIR(" in FLASH address ", (uint32_t)addrflash);
+    SERIAL_ECHOLNPAIR(" base address     ", (uint32_t)getFlashStorage(0));
+    SERIAL_FLUSH();
+  #endif

  // Get the page relative to the start of the EFC controller, and the EFC controller to use
  Efc *efc;
@@ -245,8 +243,10 @@ static bool ee_PageWrite(uint16_t page, const void *data) {
    // Reenable interrupts
    __enable_irq();

-    DEBUG_ECHO_START();
-    DEBUG_ECHOLNPAIR("EEPROM Unlock failure for page ", page);
+    #ifdef EE_EMU_DEBUG
+      SERIAL_ECHO_START();
+      SERIAL_ECHOLNPAIR("EEPROM Unlock failure for page ", page);
+    #endif
    return false;
  }

@@ -270,9 +270,10 @@ static bool ee_PageWrite(uint16_t page, const void *data) {
    // Reenable interrupts
    __enable_irq();

-    DEBUG_ECHO_START();
-    DEBUG_ECHOLNPAIR("EEPROM Write failure for page ", page);
-
+    #ifdef EE_EMU_DEBUG
+      SERIAL_ECHO_START();
+      SERIAL_ECHOLNPAIR("EEPROM Write failure for page ", page);
+    #endif
    return false;
  }

@@ -286,15 +287,15 @@ static bool ee_PageWrite(uint16_t page, const void *data) {
  if (memcmp(getFlashStorage(page),data,PageSize)) {

    #ifdef EE_EMU_DEBUG
-      DEBUG_ECHO_START();
-      DEBUG_ECHOLNPAIR("EEPROM Verify Write failure for page ", page);
+      SERIAL_ECHO_START();
+      SERIAL_ECHOLNPAIR("EEPROM Verify Write failure for page ", page);

-      ee_Dump( page, (uint32_t *)addrflash);
-      ee_Dump(-page, data);
+      ee_Dump( page,(uint32_t *) addrflash);
+      ee_Dump(-page,data);

      // Calculate count of changed bits
-      uint32_t *p1 = (uint32_t*)addrflash;
-      uint32_t *p2 = (uint32_t*)data;
+      uint32_t* p1 = (uint32_t*)addrflash;
+      uint32_t* p2 = (uint32_t*)data;
      int count = 0;
      for (i =0; i<PageSize >> 2; i++) {
        if (p1[i] != p2[i]) {
@@ -306,7 +307,7 @@ static bool ee_PageWrite(uint16_t page, const void *data) {
          }
        }
      }
-      DEBUG_ECHOLNPAIR("--> Differing bits: ", count);
+      SERIAL_ECHOLNPAIR("--> Differing bits: ", count);
    #endif

    return false;
@@ -323,13 +324,15 @@ __attribute__ ((long_call, section (".ramfunc")))
 static bool ee_PageErase(uint16_t page) {

  uint16_t i;
-  uint32_t addrflash = uint32_t(getFlashStorage(page));
+  uint32_t addrflash = ((uint32_t)getFlashStorage(page));

-  DEBUG_ECHO_START();
-  DEBUG_ECHOLNPAIR("EEPROM PageErase  ", page);
-  DEBUG_ECHOLNPAIR(" in FLASH address ", (uint32_t)addrflash);
-  DEBUG_ECHOLNPAIR(" base address     ", (uint32_t)getFlashStorage(0));
-  DEBUG_FLUSH();
+  #ifdef EE_EMU_DEBUG
+    SERIAL_ECHO_START();
+    SERIAL_ECHOLNPAIR("EEPROM PageErase  ", page);
+    SERIAL_ECHOLNPAIR(" in FLASH address ", (uint32_t)addrflash);
+    SERIAL_ECHOLNPAIR(" base address     ", (uint32_t)getFlashStorage(0));
+    SERIAL_FLUSH();
+  #endif

  // Get the page relative to the start of the EFC controller, and the EFC controller to use
  Efc *efc;
@@ -370,9 +373,10 @@ static bool ee_PageErase(uint16_t page) {
    // Reenable interrupts
    __enable_irq();

-    DEBUG_ECHO_START();
-    DEBUG_ECHOLNPAIR("EEPROM Unlock failure for page ",page);
-
+    #ifdef EE_EMU_DEBUG
+      SERIAL_ECHO_START();
+      SERIAL_ECHOLNPAIR("EEPROM Unlock failure for page ",page);
+    #endif
    return false;
  }

@@ -394,9 +398,10 @@ static bool ee_PageErase(uint16_t page) {
    // Reenable interrupts
    __enable_irq();

-    DEBUG_ECHO_START();
-    DEBUG_ECHOLNPAIR("EEPROM Erase failure for page ",page);
-
+    #ifdef EE_EMU_DEBUG
+      SERIAL_ECHO_START();
+      SERIAL_ECHOLNPAIR("EEPROM Erase failure for page ",page);
+    #endif
    return false;
  }

@@ -410,17 +415,20 @@ static bool ee_PageErase(uint16_t page) {
  uint32_t * aligned_src = (uint32_t *) addrflash;
  for (i = 0; i < PageSize >> 2; i++) {
    if (*aligned_src++ != 0xFFFFFFFF) {
-      DEBUG_ECHO_START();
-      DEBUG_ECHOLNPAIR("EEPROM Verify Erase failure for page ",page);
-      ee_Dump(page, (uint32_t *)addrflash);
+
+      #ifdef EE_EMU_DEBUG
+        SERIAL_ECHO_START();
+        SERIAL_ECHOLNPAIR("EEPROM Verify Erase failure for page ",page);
+
+        ee_Dump( page,(uint32_t *) addrflash);
+      #endif
      return false;
    }
  }

  return true;
 }
-
-static uint8_t ee_Read(uint32_t address, bool excludeRAMBuffer=false) {
+static uint8_t ee_Read(uint32_t address, bool excludeRAMBuffer = false) {

  uint32_t baddr;
  uint32_t blen;
@@ -470,7 +478,7 @@ static uint8_t ee_Read(uint32_t address, bool excludeRAMBuffer=false) {
  for (int page = curPage - 1; page >= 0; --page) {

    // Get a pointer to the flash page
-    uint8_t *pflash = (uint8_t*)getFlashStorage(page + curGroup * PagesPerGroup);
+    uint8_t* pflash = (uint8_t*)getFlashStorage(page + curGroup * PagesPerGroup);

    uint16_t i = 0;
    while (i <= (PageSize - 4)) { /* (PageSize - 4) because otherwise, there is not enough room for data and headers */
@@ -503,7 +511,7 @@ static uint8_t ee_Read(uint32_t address, bool excludeRAMBuffer=false) {
  return 0xFF;
 }

-static uint32_t ee_GetAddrRange(uint32_t address, bool excludeRAMBuffer=false) {
+static uint32_t ee_GetAddrRange(uint32_t address, bool excludeRAMBuffer = false) {
  uint32_t baddr,
           blen,
           nextAddr = 0xFFFF,
@@ -550,7 +558,7 @@ static uint32_t ee_GetAddrRange(uint32_t address, bool excludeRAMBuffer=false) {
  for (int page = curPage - 1; page >= 0; --page) {

    // Get a pointer to the flash page
-    uint8_t *pflash = (uint8_t*)getFlashStorage(page + curGroup * PagesPerGroup);
+    uint8_t* pflash = (uint8_t*)getFlashStorage(page + curGroup * PagesPerGroup);

    uint16_t i = 0;
    while (i <= (PageSize - 4)) { /* (PageSize - 4) because otherwise, there is not enough room for data and headers */
@@ -589,17 +597,17 @@ static uint32_t ee_GetAddrRange(uint32_t address, bool excludeRAMBuffer=false) {
 }

 static bool ee_IsPageClean(int page) {
-  uint32_t *pflash = (uint32_t*) getFlashStorage(page);
+  uint32_t* pflash = (uint32_t*) getFlashStorage(page);
  for (uint16_t i = 0; i < (PageSize >> 2); ++i)
    if (*pflash++ != 0xFFFFFFFF) return false;
  return true;
 }

-static bool ee_Flush(uint32_t overrideAddress = 0xFFFFFFFF, uint8_t overrideData=0xFF) {
+static bool ee_Flush(uint32_t overrideAddress = 0xFFFFFFFF, uint8_t overrideData = 0xFF) {

  // Check if RAM buffer has something to be written
  bool isEmpty = true;
-  uint32_t *p = (uint32_t*) &buffer[0];
+  uint32_t* p = (uint32_t*) &buffer[0];
  for (uint16_t j = 0; j < (PageSize >> 2); j++) {
    if (*p++ != 0xFFFFFFFF) {
      isEmpty = false;
@@ -921,9 +929,11 @@ static void ee_Init() {
  // If all groups seem to be used, default to first group
  if (curGroup >= GroupCount) curGroup = 0;

-  DEBUG_ECHO_START();
-  DEBUG_ECHOLNPAIR("EEPROM Current Group: ",curGroup);
-  DEBUG_FLUSH();
+  #ifdef EE_EMU_DEBUG
+    SERIAL_ECHO_START();
+    SERIAL_ECHOLNPAIR("EEPROM Current Group: ",curGroup);
+    SERIAL_FLUSH();
+  #endif

  // Now, validate that all the other group pages are empty
  for (int grp = 0; grp < GroupCount; grp++) {
@@ -931,9 +941,11 @@ static void ee_Init() {

    for (int page = 0; page < PagesPerGroup; page++) {
      if (!ee_IsPageClean(grp * PagesPerGroup + page)) {
-        DEBUG_ECHO_START();
-        DEBUG_ECHOLNPAIR("EEPROM Page ", page, " not clean on group ", grp);
-        DEBUG_FLUSH();
+        #ifdef EE_EMU_DEBUG
+          SERIAL_ECHO_START();
+          SERIAL_ECHOLNPAIR("EEPROM Page ", page, " not clean on group ", grp);
+          SERIAL_FLUSH();
+        #endif
        ee_PageErase(grp * PagesPerGroup + page);
      }
    }
@@ -943,68 +955,66 @@ static void ee_Init() {
  // and also validate that all the other ones are clean
  for (curPage = 0; curPage < PagesPerGroup; curPage++) {
    if (ee_IsPageClean(curGroup * PagesPerGroup + curPage)) {
-      ee_Dump(curGroup * PagesPerGroup + curPage, getFlashStorage(curGroup * PagesPerGroup + curPage));
+      #ifdef EE_EMU_DEBUG
+        ee_Dump(curGroup * PagesPerGroup + curPage, getFlashStorage(curGroup * PagesPerGroup + curPage));
+      #endif
      break;
    }
  }

-  DEBUG_ECHO_START();
-  DEBUG_ECHOLNPAIR("EEPROM Active page: ", curPage);
-  DEBUG_FLUSH();
+  #ifdef EE_EMU_DEBUG
+    SERIAL_ECHO_START();
+    SERIAL_ECHOLNPAIR("EEPROM Active page: ", curPage);
+    SERIAL_FLUSH();
+  #endif

  // Make sure the pages following the first clean one are also clean
  for (int page = curPage + 1; page < PagesPerGroup; page++) {
    if (!ee_IsPageClean(curGroup * PagesPerGroup + page)) {
-      DEBUG_ECHO_START();
-      DEBUG_ECHOLNPAIR("EEPROM Page ", page, " not clean on active group ", curGroup);
-      DEBUG_FLUSH();
-      ee_Dump(curGroup * PagesPerGroup + page, getFlashStorage(curGroup * PagesPerGroup + page));
+      #ifdef EE_EMU_DEBUG
+        SERIAL_ECHO_START();
+        SERIAL_ECHOLNPAIR("EEPROM Page ", page, " not clean on active group ", curGroup);
+        SERIAL_FLUSH();
+        ee_Dump(curGroup * PagesPerGroup + page, getFlashStorage(curGroup * PagesPerGroup + page));
+      #endif
      ee_PageErase(curGroup * PagesPerGroup + page);
    }
  }
 }

-/* PersistentStore -----------------------------------------------------------*/
-
-#include "../shared/eeprom_api.h"
-
-#ifndef MARLIN_EEPROM_SIZE
-  #define MARLIN_EEPROM_SIZE 0x1000 // 4KB
-#endif
-size_t PersistentStore::capacity()    { return MARLIN_EEPROM_SIZE; }
-bool PersistentStore::access_start()  { ee_Init();  return true; }
-bool PersistentStore::access_finish() { ee_Flush(); return true; }
-
-bool PersistentStore::write_data(int &pos, const uint8_t *value, size_t size, uint16_t *crc) {
-  uint16_t written = 0;
-  while (size--) {
-    uint8_t * const p = (uint8_t * const)pos;
-    uint8_t v = *value;
-    if (v != ee_Read(uint32_t(p))) { // EEPROM has only ~100,000 write cycles, so only write bytes that have changed!
-      ee_Write(uint32_t(p), v);
-      if (++written & 0x7F) delay(2); else safe_delay(2); // Avoid triggering watchdog during long EEPROM writes
-      if (ee_Read(uint32_t(p)) != v) {
-        SERIAL_ECHO_MSG(STR_ERR_EEPROM_WRITE);
-        return true;
-      }
-    }
-    crc16(crc, &v, 1);
-    pos++;
-    value++;
-  }
-  return false;
+uint8_t eeprom_read_byte(uint8_t* addr) {
+  ee_Init();
+  return ee_Read((uint32_t)addr);
 }

-bool PersistentStore::read_data(int &pos, uint8_t *value, size_t size, uint16_t *crc, const bool writing/*=true*/) {
-  do {
-    uint8_t c = ee_Read(uint32_t(pos));
-    if (writing) *value = c;
-    crc16(crc, &c, 1);
-    pos++;
-    value++;
-  } while (--size);
-  return false;
+void eeprom_write_byte(uint8_t* addr, uint8_t value) {
+  ee_Init();
+  ee_Write((uint32_t)addr, value);
+}
+
+void eeprom_update_block(const void* __src, void* __dst, size_t __n) {
+  uint8_t* dst = (uint8_t*)__dst;
+  const uint8_t* src = (const uint8_t*)__src;
+  while (__n--) {
+    eeprom_write_byte(dst, *src);
+    ++dst;
+    ++src;
+  }
+}
+
+void eeprom_read_block(void* __dst, const void* __src, size_t __n) {
+  uint8_t* dst = (uint8_t*)__dst;
+  uint8_t* src = (uint8_t*)__src;
+  while (__n--) {
+    *dst = eeprom_read_byte(src);
+    ++dst;
+    ++src;
+  }
+}
+
+void eeprom_flush() {
+  ee_Flush();
 }

 #endif // FLASH_EEPROM_EMULATION
-#endif // ARDUINO_ARCH_SAM
+#endif // ARDUINO_ARCH_AVR
--- a/Marlin/src/HAL/DUE/HAL.cpp
+++ b/Marlin/src/HAL/DUE/HAL.cpp
@@ -14,12 +14,13 @@
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <https://www.gnu.org/licenses/>.
- *
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */

 /**
- * HAL for Arduino Due and compatible (SAM3X8E)
+ * Description: HAL for Arduino Due and compatible (SAM3X8E)
+ *
+ * For ARDUINO_ARCH_SAM
 */

 #ifdef ARDUINO_ARCH_SAM
@@ -40,8 +41,6 @@ uint16_t HAL_adc_result;
 // Public functions
 // ------------------------

-TERN_(POSTMORTEM_DEBUGGING, extern void install_min_serial());
-
 // HAL initialization task
 void HAL_init() {
  // Initialize the USB stack
@@ -49,7 +48,6 @@ void HAL_init() {
    OUT_WRITE(SDSS, HIGH);  // Try to set SDSS inactive before any other SPI users start up
  #endif
  usb_task_init();
-  TERN_(POSTMORTEM_DEBUGGING, install_min_serial()); // Install the min serial handler
 }

 // HAL idle task
@@ -77,8 +75,6 @@ uint8_t HAL_get_reset_source() {
  }
 }

-void HAL_reboot() { rstc_start_software_reset(RSTC); }
-
 void _delay_ms(const int delay_ms) {
  // Todo: port for Due?
  delay(delay_ms);
@@ -107,18 +103,4 @@ uint16_t HAL_adc_get_result() {
  return HAL_adc_result;
 }

-// Forward the default serial ports
-#if USING_HW_SERIAL0
-  DefaultSerial1 MSerial0(false, Serial);
-#endif
-#if USING_HW_SERIAL1
-  DefaultSerial2 MSerial1(false, Serial1);
-#endif
-#if USING_HW_SERIAL2
-  DefaultSerial3 MSerial2(false, Serial2);
-#endif
-#if USING_HW_SERIAL3
-  DefaultSerial4 MSerial3(false, Serial3);
-#endif
-
 #endif // ARDUINO_ARCH_SAM
--- a/Marlin/src/HAL/DUE/HAL.h
+++ b/Marlin/src/HAL/DUE/HAL.h
@@ -16,81 +16,81 @@
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 *
 */
 #pragma once

 /**
- * HAL for Arduino Due and compatible (SAM3X8E)
+ * Description: HAL for Arduino Due and compatible (SAM3X8E)
+ *
+ * For ARDUINO_ARCH_SAM
 */

 #define CPU_32_BIT

 #include "../shared/Marduino.h"
-#include "../shared/eeprom_if.h"
 #include "../shared/math_32bit.h"
 #include "../shared/HAL_SPI.h"
 #include "fastio.h"
 #include "watchdog.h"
+#include "timers.h"

 #include <stdint.h>

-#include "../../core/serial_hook.h"
-
-typedef ForwardSerial1Class< decltype(Serial) > DefaultSerial1;
-typedef ForwardSerial1Class< decltype(Serial1) > DefaultSerial2;
-typedef ForwardSerial1Class< decltype(Serial2) > DefaultSerial3;
-typedef ForwardSerial1Class< decltype(Serial3) > DefaultSerial4;
-extern DefaultSerial1 MSerial0;
-extern DefaultSerial2 MSerial1;
-extern DefaultSerial3 MSerial2;
-extern DefaultSerial4 MSerial3;
-
-#define _MSERIAL(X) MSerial##X
-#define MSERIAL(X) _MSERIAL(X)
-
+// Define MYSERIAL0/1 before MarlinSerial includes!
 #if SERIAL_PORT == -1 || ENABLED(EMERGENCY_PARSER)
-  #define MYSERIAL1 customizedSerial1
-#elif WITHIN(SERIAL_PORT, 0, 3)
-  #define MYSERIAL1 MSERIAL(SERIAL_PORT)
+  #define MYSERIAL0 customizedSerial1
+#elif SERIAL_PORT == 0
+  #define MYSERIAL0 Serial
+#elif SERIAL_PORT == 1
+  #define MYSERIAL0 Serial1
+#elif SERIAL_PORT == 2
+  #define MYSERIAL0 Serial2
+#elif SERIAL_PORT == 3
+  #define MYSERIAL0 Serial3
 #else
-  #error "The required SERIAL_PORT must be from 0 to 3, or -1 for USB Serial."
+  #error "The required SERIAL_PORT must be from -1 to 3. Please update your configuration."
 #endif

 #ifdef SERIAL_PORT_2
-  #if SERIAL_PORT_2 == -1 || ENABLED(EMERGENCY_PARSER)
-    #define MYSERIAL2 customizedSerial2
-  #elif WITHIN(SERIAL_PORT_2, 0, 3)
-    #define MYSERIAL2 MSERIAL(SERIAL_PORT_2)
+  #if SERIAL_PORT_2 == SERIAL_PORT
+    #error "SERIAL_PORT_2 must be different from SERIAL_PORT. Please update your configuration."
+  #elif SERIAL_PORT_2 == -1 || ENABLED(EMERGENCY_PARSER)
+    #define MYSERIAL1 customizedSerial2
+  #elif SERIAL_PORT_2 == 0
+    #define MYSERIAL1 Serial
+  #elif SERIAL_PORT_2 == 1
+    #define MYSERIAL1 Serial1
+  #elif SERIAL_PORT_2 == 2
+    #define MYSERIAL1 Serial2
+  #elif SERIAL_PORT_2 == 3
+    #define MYSERIAL1 Serial3
  #else
-    #error "SERIAL_PORT_2 must be from 0 to 3, or -1 for USB Serial."
+    #error "SERIAL_PORT_2 must be from -1 to 3. Please update your configuration."
  #endif
+  #define NUM_SERIAL 2
+#else
+  #define NUM_SERIAL 1
 #endif

-#ifdef SERIAL_PORT_3
-  #if SERIAL_PORT_3 == -1 || ENABLED(EMERGENCY_PARSER)
-    #define MYSERIAL3 customizedSerial3
-  #elif WITHIN(SERIAL_PORT_3, 0, 3)
-    #define MYSERIAL3 MSERIAL(SERIAL_PORT_3)
+#ifdef DGUS_SERIAL_PORT
+  #if DGUS_SERIAL_PORT == SERIAL_PORT
+    #error "DGUS_SERIAL_PORT must be different from SERIAL_PORT. Please update your configuration."
+  #elif defined(SERIAL_PORT_2) && DGUS_SERIAL_PORT == SERIAL_PORT_2
+    #error "DGUS_SERIAL_PORT must be different than SERIAL_PORT_2. Please update your configuration."
+  #elif DGUS_SERIAL_PORT == -1
+    #define DGUS_SERIAL internalDgusSerial
+  #elif DGUS_SERIAL_PORT == 0
+    #define DGUS_SERIAL Serial
+  #elif DGUS_SERIAL_PORT == 1
+    #define DGUS_SERIAL Serial1
+  #elif DGUS_SERIAL_PORT == 2
+    #define DGUS_SERIAL Serial2
+  #elif DGUS_SERIAL_PORT == 3
+    #define DGUS_SERIAL Serial3
  #else
-    #error "SERIAL_PORT_3 must be from 0 to 3, or -1 for USB Serial."
-  #endif
-#endif
-
-#ifdef MMU2_SERIAL_PORT
-  #if WITHIN(MMU2_SERIAL_PORT, 0, 3)
-    #define MMU2_SERIAL MSERIAL(MMU2_SERIAL_PORT)
-  #else
-    #error "MMU2_SERIAL_PORT must be from 0 to 3."
-  #endif
-#endif
-
-#ifdef LCD_SERIAL_PORT
-  #if WITHIN(LCD_SERIAL_PORT, 0, 3)
-    #define LCD_SERIAL MSERIAL(LCD_SERIAL_PORT)
-  #else
-    #error "LCD_SERIAL_PORT must be from 0 to 3."
+    #error "DGUS_SERIAL_PORT must be from -1 to 3. Please update your configuration."
  #endif
 #endif

@@ -100,6 +100,16 @@ extern DefaultSerial4 MSerial3;
 // On AVR this is in math.h?
 #define square(x) ((x)*(x))

+#ifndef strncpy_P
+  #define strncpy_P(dest, src, num) strncpy((dest), (src), (num))
+#endif
+
+// Fix bug in pgm_read_ptr
+#undef pgm_read_ptr
+#define pgm_read_ptr(addr) (*((void**)(addr)))
+#undef pgm_read_word
+#define pgm_read_word(addr) (*((uint16_t*)(addr)))
+
 typedef int8_t pin_t;

 #define SHARED_SERVOS HAS_SERVOS
@@ -120,7 +130,13 @@ void sei();                     // Enable interrupts
 void HAL_clear_reset_source();  // clear reset reason
 uint8_t HAL_get_reset_source(); // get reset reason

-void HAL_reboot();
+//
+// EEPROM
+//
+void eeprom_write_byte(uint8_t *pos, unsigned char value);
+uint8_t eeprom_read_byte(uint8_t *pos);
+void eeprom_read_block (void *__dst, const void *__src, size_t __n);
+void eeprom_update_block (const void *__src, void *__dst, size_t __n);

 //
 // ADC
@@ -128,16 +144,15 @@ void HAL_reboot();
 extern uint16_t HAL_adc_result;     // result of last ADC conversion

 #ifndef analogInputToDigitalPin
-  #define analogInputToDigitalPin(p) ((p < 12U) ? (p) + 54U : -1)
+  #define analogInputToDigitalPin(p) ((p < 12u) ? (p) + 54u : -1)
 #endif

 #define HAL_ANALOG_SELECT(ch)

 inline void HAL_adc_init() {}//todo

-#define HAL_ADC_VREF         3.3
-#define HAL_ADC_RESOLUTION  10
 #define HAL_START_ADC(ch)   HAL_adc_start_conversion(ch)
+#define HAL_ADC_RESOLUTION  10
 #define HAL_READ_ADC()      HAL_adc_result
 #define HAL_ADC_READY()     true

@@ -168,16 +183,10 @@ void HAL_init();
 //
 void _delay_ms(const int delay);

-#if GCC_VERSION <= 50000
-  #pragma GCC diagnostic push
-  #pragma GCC diagnostic ignored "-Wunused-function"
-#endif
-
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wunused-function"
 int freeMemory();
-
-#if GCC_VERSION <= 50000
-  #pragma GCC diagnostic pop
-#endif
+#pragma GCC diagnostic pop

 #ifdef __cplusplus
  extern "C" {
--- a/Marlin/src/HAL/DUE/HAL_MinSerial.cpp
+++ b/Marlin/src/HAL/DUE/HAL_MinSerial.cpp
@@ -1,91 +0,0 @@
-/**
- * Marlin 3D Printer Firmware
- * Copyright (c) 2021 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
- *
- * Based on Sprinter and grbl.
- * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <https://www.gnu.org/licenses/>.
- *
- */
-#ifdef ARDUINO_ARCH_SAM
-
-#include "../../inc/MarlinConfigPre.h"
-
-#if ENABLED(POSTMORTEM_DEBUGGING)
-
-#include "../shared/HAL_MinSerial.h"
-
-#include <stdarg.h>
-
-static void TXBegin() {
-  // Disable UART interrupt in NVIC
-  NVIC_DisableIRQ( UART_IRQn );
-
-  // We NEED memory barriers to ensure Interrupts are actually disabled!
-  // ( https://dzone.com/articles/nvic-disabling-interrupts-on-arm-cortex-m-and-the )
-  __DSB();
-  __ISB();
-
-  // Disable clock
-  pmc_disable_periph_clk( ID_UART );
-
-  // Configure PMC
-  pmc_enable_periph_clk( ID_UART );
-
-  // Disable PDC channel
-  UART->UART_PTCR = UART_PTCR_RXTDIS | UART_PTCR_TXTDIS;
-
-  // Reset and disable receiver and transmitter
-  UART->UART_CR = UART_CR_RSTRX | UART_CR_RSTTX | UART_CR_RXDIS | UART_CR_TXDIS;
-
-  // Configure mode: 8bit, No parity, 1 bit stop
-  UART->UART_MR = UART_MR_CHMODE_NORMAL | US_MR_CHRL_8_BIT | US_MR_NBSTOP_1_BIT | UART_MR_PAR_NO;
-
-  // Configure baudrate (asynchronous, no oversampling) to BAUDRATE bauds
-  UART->UART_BRGR = (SystemCoreClock / (BAUDRATE << 4));
-
-  // Enable receiver and transmitter
-  UART->UART_CR = UART_CR_RXEN | UART_CR_TXEN;
-}
-
-// A SW memory barrier, to ensure GCC does not overoptimize loops
-#define sw_barrier() __asm__ volatile("": : :"memory");
-static void TX(char c) {
-  while (!(UART->UART_SR & UART_SR_TXRDY)) { WDT_Restart(WDT); sw_barrier(); };
-  UART->UART_THR = c;
-}
-
-void install_min_serial() {
-  HAL_min_serial_init = &TXBegin;
-  HAL_min_serial_out = &TX;
-}
-
-#if DISABLED(DYNAMIC_VECTORTABLE)
-extern "C" {
-  __attribute__((naked)) void JumpHandler_ASM() {
-    __asm__ __volatile__ (
-      "b CommonHandler_ASM\n"
-    );
-  }
-  void __attribute__((naked, alias("JumpHandler_ASM"))) HardFault_Handler();
-  void __attribute__((naked, alias("JumpHandler_ASM"))) BusFault_Handler();
-  void __attribute__((naked, alias("JumpHandler_ASM"))) UsageFault_Handler();
-  void __attribute__((naked, alias("JumpHandler_ASM"))) MemManage_Handler();
-  void __attribute__((naked, alias("JumpHandler_ASM"))) NMI_Handler();
-}
-#endif
-
-#endif // POSTMORTEM_DEBUGGING
-#endif // ARDUINO_ARCH_SAM
--- a/Marlin/src/HAL/DUE/HAL_SPI.cpp
+++ b/Marlin/src/HAL/DUE/HAL_SPI.cpp
@@ -16,7 +16,7 @@
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 *
 */

@@ -30,7 +30,7 @@
 */

 /**
- * HAL for Arduino Due and compatible (SAM3X8E)
+ * Description: HAL for Arduino Due and compatible (SAM3X8E)
 *
 * For ARDUINO_ARCH_SAM
 */
@@ -56,8 +56,8 @@
  #pragma GCC optimize (3)

  typedef uint8_t (*pfnSpiTransfer)(uint8_t b);
-  typedef void    (*pfnSpiRxBlock)(uint8_t *buf, uint32_t nbyte);
-  typedef void    (*pfnSpiTxBlock)(const uint8_t *buf, uint32_t nbyte);
+  typedef void    (*pfnSpiRxBlock)(uint8_t* buf, uint32_t nbyte);
+  typedef void    (*pfnSpiTxBlock)(const uint8_t* buf, uint32_t nbyte);

  /* ---------------- Macros to be able to access definitions from asm */
  #define _PORT(IO) DIO ##  IO ## _WPORT
@@ -69,10 +69,10 @@

  // run at ~8 .. ~10Mhz - Tx version (Rx data discarded)
  static uint8_t spiTransferTx0(uint8_t bout) { // using Mode 0
-    uint32_t MOSI_PORT_PLUS30 = ((uint32_t) PORT(SD_MOSI_PIN)) + 0x30;  /* SODR of port */
-    uint32_t MOSI_MASK = PIN_MASK(SD_MOSI_PIN);
-    uint32_t SCK_PORT_PLUS30 = ((uint32_t) PORT(SD_SCK_PIN)) + 0x30;    /* SODR of port */
-    uint32_t SCK_MASK = PIN_MASK(SD_SCK_PIN);
+    uint32_t MOSI_PORT_PLUS30 = ((uint32_t) PORT(MOSI_PIN)) + 0x30;  /* SODR of port */
+    uint32_t MOSI_MASK = PIN_MASK(MOSI_PIN);
+    uint32_t SCK_PORT_PLUS30 = ((uint32_t) PORT(SCK_PIN)) + 0x30;    /* SODR of port */
+    uint32_t SCK_MASK = PIN_MASK(SCK_PIN);
    uint32_t idx = 0;

    /* Negate bout, as the assembler requires a negated value */
@@ -154,9 +154,9 @@
  static uint8_t spiTransferRx0(uint8_t) { // using Mode 0
    uint32_t bin = 0;
    uint32_t work = 0;
-    uint32_t BITBAND_MISO_PORT = BITBAND_ADDRESS( ((uint32_t)PORT(SD_MISO_PIN))+0x3C, PIN_SHIFT(SD_MISO_PIN));  /* PDSR of port in bitband area */
-    uint32_t SCK_PORT_PLUS30 = ((uint32_t) PORT(SD_SCK_PIN)) + 0x30;    /* SODR of port */
-    uint32_t SCK_MASK = PIN_MASK(SD_SCK_PIN);
+    uint32_t BITBAND_MISO_PORT = BITBAND_ADDRESS( ((uint32_t)PORT(MISO_PIN))+0x3C, PIN_SHIFT(MISO_PIN));  /* PDSR of port in bitband area */
+    uint32_t SCK_PORT_PLUS30 = ((uint32_t) PORT(SCK_PIN)) + 0x30;    /* SODR of port */
+    uint32_t SCK_MASK = PIN_MASK(SCK_PIN);

    /* The software SPI routine */
    __asm__ __volatile__(
@@ -225,36 +225,36 @@
  static uint8_t spiTransfer1(uint8_t b) { // using Mode 0
    int bits = 8;
    do {
-      WRITE(SD_MOSI_PIN, b & 0x80);
+      WRITE(MOSI_PIN, b & 0x80);
      b <<= 1;        // little setup time

-      WRITE(SD_SCK_PIN, HIGH);
+      WRITE(SCK_PIN, HIGH);
      DELAY_NS(125);  // 10 cycles @ 84mhz

-      b |= (READ(SD_MISO_PIN) != 0);
+      b |= (READ(MISO_PIN) != 0);

-      WRITE(SD_SCK_PIN, LOW);
+      WRITE(SCK_PIN, LOW);
      DELAY_NS(125);  // 10 cycles @ 84mhz
    } while (--bits);
    return b;
  }

  // all the others
-  static uint32_t spiDelayCyclesX4 = 4 * (F_CPU) / 1000000; // 4µs => 125khz
+  static uint32_t spiDelayCyclesX4 = (F_CPU) / 1000000; // 4µs => 125khz

  static uint8_t spiTransferX(uint8_t b) { // using Mode 0
    int bits = 8;
    do {
-      WRITE(SD_MOSI_PIN, b & 0x80);
+      WRITE(MOSI_PIN, b & 0x80);
      b <<= 1; // little setup time

-      WRITE(SD_SCK_PIN, HIGH);
-      DELAY_CYCLES(spiDelayCyclesX4);
+      WRITE(SCK_PIN, HIGH);
+      __delay_4cycles(spiDelayCyclesX4);

-      b |= (READ(SD_MISO_PIN) != 0);
+      b |= (READ(MISO_PIN) != 0);

-      WRITE(SD_SCK_PIN, LOW);
-      DELAY_CYCLES(spiDelayCyclesX4);
+      WRITE(SCK_PIN, LOW);
+      __delay_4cycles(spiDelayCyclesX4);
    } while (--bits);
    return b;
  }
@@ -270,11 +270,11 @@
  static pfnSpiTransfer spiTransferTx = (pfnSpiTransfer)spiTransferX;

  // Block transfers run at ~8 .. ~10Mhz - Tx version (Rx data discarded)
-  static void spiTxBlock0(const uint8_t *ptr, uint32_t todo) {
-    uint32_t MOSI_PORT_PLUS30 = ((uint32_t) PORT(SD_MOSI_PIN)) + 0x30;  /* SODR of port */
-    uint32_t MOSI_MASK = PIN_MASK(SD_MOSI_PIN);
-    uint32_t SCK_PORT_PLUS30 = ((uint32_t) PORT(SD_SCK_PIN)) + 0x30;    /* SODR of port */
-    uint32_t SCK_MASK = PIN_MASK(SD_SCK_PIN);
+  static void spiTxBlock0(const uint8_t* ptr, uint32_t todo) {
+    uint32_t MOSI_PORT_PLUS30 = ((uint32_t) PORT(MOSI_PIN)) + 0x30;  /* SODR of port */
+    uint32_t MOSI_MASK = PIN_MASK(MOSI_PIN);
+    uint32_t SCK_PORT_PLUS30 = ((uint32_t) PORT(SCK_PIN)) + 0x30;    /* SODR of port */
+    uint32_t SCK_MASK = PIN_MASK(SCK_PIN);
    uint32_t work = 0;
    uint32_t txval = 0;

@@ -349,12 +349,12 @@
    );
  }

-  static void spiRxBlock0(uint8_t *ptr, uint32_t todo) {
+  static void spiRxBlock0(uint8_t* ptr, uint32_t todo) {
    uint32_t bin = 0;
    uint32_t work = 0;
-    uint32_t BITBAND_MISO_PORT = BITBAND_ADDRESS( ((uint32_t)PORT(SD_MISO_PIN))+0x3C, PIN_SHIFT(SD_MISO_PIN));  /* PDSR of port in bitband area */
-    uint32_t SCK_PORT_PLUS30 = ((uint32_t) PORT(SD_SCK_PIN)) + 0x30;    /* SODR of port */
-    uint32_t SCK_MASK = PIN_MASK(SD_SCK_PIN);
+    uint32_t BITBAND_MISO_PORT = BITBAND_ADDRESS( ((uint32_t)PORT(MISO_PIN))+0x3C, PIN_SHIFT(MISO_PIN));  /* PDSR of port in bitband area */
+    uint32_t SCK_PORT_PLUS30 = ((uint32_t) PORT(SCK_PIN)) + 0x30;    /* SODR of port */
+    uint32_t SCK_MASK = PIN_MASK(SCK_PIN);

    /* The software SPI routine */
    __asm__ __volatile__(
@@ -425,13 +425,13 @@
    );
  }

-  static void spiTxBlockX(const uint8_t *buf, uint32_t todo) {
+  static void spiTxBlockX(const uint8_t* buf, uint32_t todo) {
    do {
      (void)spiTransferTx(*buf++);
    } while (--todo);
  }

-  static void spiRxBlockX(uint8_t *buf, uint32_t todo) {
+  static void spiRxBlockX(uint8_t* buf, uint32_t todo) {
    do {
      *buf++ = spiTransferRx(0xFF);
    } while (--todo);
@@ -442,31 +442,31 @@
  static pfnSpiRxBlock spiRxBlock = (pfnSpiRxBlock)spiRxBlockX;

  #if MB(ALLIGATOR)
-    #define _SS_WRITE(S) WRITE(SD_SS_PIN, S)
+    #define _SS_WRITE(S) WRITE(SS_PIN, S)
  #else
    #define _SS_WRITE(S) NOOP
  #endif

  void spiBegin() {
-    SET_OUTPUT(SD_SS_PIN);
+    SET_OUTPUT(SS_PIN);
    _SS_WRITE(HIGH);
-    SET_OUTPUT(SD_SCK_PIN);
-    SET_INPUT(SD_MISO_PIN);
-    SET_OUTPUT(SD_MOSI_PIN);
+    SET_OUTPUT(SCK_PIN);
+    SET_INPUT(MISO_PIN);
+    SET_OUTPUT(MOSI_PIN);
  }

  uint8_t spiRec() {
    _SS_WRITE(LOW);
-    WRITE(SD_MOSI_PIN, HIGH); // Output 1s 1
+    WRITE(MOSI_PIN, HIGH); // Output 1s 1
    uint8_t b = spiTransferRx(0xFF);
    _SS_WRITE(HIGH);
    return b;
  }

-  void spiRead(uint8_t *buf, uint16_t nbyte) {
+  void spiRead(uint8_t* buf, uint16_t nbyte) {
    if (nbyte) {
      _SS_WRITE(LOW);
-      WRITE(SD_MOSI_PIN, HIGH); // Output 1s 1
+      WRITE(MOSI_PIN, HIGH); // Output 1s 1
      spiRxBlock(buf, nbyte);
      _SS_WRITE(HIGH);
    }
@@ -478,7 +478,7 @@
    _SS_WRITE(HIGH);
  }

-  void spiSendBlock(uint8_t token, const uint8_t *buf) {
+  void spiSendBlock(uint8_t token, const uint8_t* buf) {
    _SS_WRITE(LOW);
    (void)spiTransferTx(token);
    spiTxBlock(buf, 512);
@@ -510,7 +510,7 @@
        spiRxBlock = (pfnSpiRxBlock)spiRxBlockX;
        break;
      default:
-        spiDelayCyclesX4 = ((F_CPU) / 1000000) >> (6 - spiRate) << 2; // spiRate of 2 gives the maximum error with current CPU
+        spiDelayCyclesX4 = ((F_CPU) / 1000000) >> (6 - spiRate);
        spiTransferTx = (pfnSpiTransfer)spiTransferX;
        spiTransferRx = (pfnSpiTransfer)spiTransferX;
        spiTxBlock = (pfnSpiTxBlock)spiTxBlockX;
@@ -519,8 +519,8 @@
    }

    _SS_WRITE(HIGH);
-    WRITE(SD_MOSI_PIN, HIGH);
-    WRITE(SD_SCK_PIN, LOW);
+    WRITE(MOSI_PIN, HIGH);
+    WRITE(SCK_PIN, LOW);
  }

  /** Begin SPI transaction, set clock, bit order, data mode */
@@ -575,27 +575,27 @@

      // Configure SPI pins
      PIO_Configure(
-         g_APinDescription[SD_SCK_PIN].pPort,
-         g_APinDescription[SD_SCK_PIN].ulPinType,
-         g_APinDescription[SD_SCK_PIN].ulPin,
-         g_APinDescription[SD_SCK_PIN].ulPinConfiguration);
+         g_APinDescription[SCK_PIN].pPort,
+         g_APinDescription[SCK_PIN].ulPinType,
+         g_APinDescription[SCK_PIN].ulPin,
+         g_APinDescription[SCK_PIN].ulPinConfiguration);
      PIO_Configure(
-         g_APinDescription[SD_MOSI_PIN].pPort,
-         g_APinDescription[SD_MOSI_PIN].ulPinType,
-         g_APinDescription[SD_MOSI_PIN].ulPin,
-         g_APinDescription[SD_MOSI_PIN].ulPinConfiguration);
+         g_APinDescription[MOSI_PIN].pPort,
+         g_APinDescription[MOSI_PIN].ulPinType,
+         g_APinDescription[MOSI_PIN].ulPin,
+         g_APinDescription[MOSI_PIN].ulPinConfiguration);
      PIO_Configure(
-         g_APinDescription[SD_MISO_PIN].pPort,
-         g_APinDescription[SD_MISO_PIN].ulPinType,
-         g_APinDescription[SD_MISO_PIN].ulPin,
-         g_APinDescription[SD_MISO_PIN].ulPinConfiguration);
+         g_APinDescription[MISO_PIN].pPort,
+         g_APinDescription[MISO_PIN].ulPinType,
+         g_APinDescription[MISO_PIN].ulPin,
+         g_APinDescription[MISO_PIN].ulPinConfiguration);

      // set master mode, peripheral select, fault detection
      SPI_Configure(SPI0, ID_SPI0, SPI_MR_MSTR | SPI_MR_MODFDIS | SPI_MR_PS);
      SPI_Enable(SPI0);

      SET_OUTPUT(DAC0_SYNC);
-      #if HAS_MULTI_EXTRUDER
+      #if EXTRUDERS > 1
        SET_OUTPUT(DAC1_SYNC);
        WRITE(DAC1_SYNC, HIGH);
      #endif
@@ -606,7 +606,7 @@
      WRITE(SPI_EEPROM1_CS, HIGH);
      WRITE(SPI_EEPROM2_CS, HIGH);
      WRITE(SPI_FLASH_CS, HIGH);
-      WRITE(SD_SS_PIN, HIGH);
+      WRITE(SS_PIN, HIGH);

      OUT_WRITE(SDSS, LOW);

@@ -645,7 +645,7 @@
    }

    // Read from SPI into buffer
-    void spiRead(uint8_t *buf, uint16_t nbyte) {
+    void spiRead(uint8_t* buf, uint16_t nbyte) {
      if (!nbyte) return;
      --nbyte;
      for (int i = 0; i < nbyte; i++) {
@@ -668,7 +668,7 @@
      //DELAY_US(1U);
    }

-    void spiSend(const uint8_t *buf, size_t nbyte) {
+    void spiSend(const uint8_t* buf, size_t nbyte) {
      if (!nbyte) return;
      --nbyte;
      for (size_t i = 0; i < nbyte; i++) {
@@ -689,7 +689,7 @@
      FLUSH_RX();
    }

-    void spiSend(uint32_t chan, const uint8_t *buf, size_t nbyte) {
+    void spiSend(uint32_t chan, const uint8_t* buf, size_t nbyte) {
      if (!nbyte) return;
      --nbyte;
      for (size_t i = 0; i < nbyte; i++) {
@@ -702,7 +702,7 @@
    }

    // Write from buffer to SPI
-    void spiSendBlock(uint8_t token, const uint8_t *buf) {
+    void spiSendBlock(uint8_t token, const uint8_t* buf) {
      SPI0->SPI_TDR = (uint32_t)token | SPI_PCS(SPI_CHAN);
      WHILE_TX(0);
      //WHILE_RX(0);
@@ -759,6 +759,7 @@
     *
     *  All of the above can be avoided by defining FORCE_SOFT_SPI to force the
     *  display to use software SPI.
+     *
     */

    void spiInit(uint8_t spiRate=6) {  // Default to slowest rate if not specified)
@@ -801,19 +802,19 @@

    uint8_t spiRec() { return (uint8_t)spiTransfer(0xFF); }

-    void spiRead(uint8_t *buf, uint16_t nbyte) {
+    void spiRead(uint8_t* buf, uint16_t nbyte) {
      for (int i = 0; i < nbyte; i++)
        buf[i] = spiTransfer(0xFF);
    }

    void spiSend(uint8_t data) { spiTransfer(data); }

-    void spiSend(const uint8_t *buf, size_t nbyte) {
+    void spiSend(const uint8_t* buf, size_t nbyte) {
      for (uint16_t i = 0; i < nbyte; i++)
        spiTransfer(buf[i]);
    }

-    void spiSendBlock(uint8_t token, const uint8_t *buf) {
+    void spiSendBlock(uint8_t token, const uint8_t* buf) {
      spiTransfer(token);
      for (uint16_t i = 0; i < 512; i++)
        spiTransfer(buf[i]);
--- a/Marlin/src/HAL/DUE/InterruptVectors.cpp
+++ b/Marlin/src/HAL/DUE/InterruptVectors.cpp
@@ -16,7 +16,7 @@
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 *
 */

--- a/Marlin/src/HAL/DUE/InterruptVectors.h
+++ b/Marlin/src/HAL/DUE/InterruptVectors.h
@@ -16,7 +16,7 @@
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 *
 */
 #pragma once
--- a/Marlin/src/HAL/DUE/MarlinSerial.cpp
+++ b/Marlin/src/HAL/DUE/MarlinSerial.cpp
@@ -16,7 +16,7 @@
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 *
 */

@@ -382,7 +382,7 @@ void MarlinSerial<Cfg>::flush() {
 }

 template<typename Cfg>
-size_t MarlinSerial<Cfg>::write(const uint8_t c) {
+void MarlinSerial<Cfg>::write(const uint8_t c) {
  _written = true;

  if (Cfg::TX_SIZE == 0) {
@@ -400,7 +400,7 @@ size_t MarlinSerial<Cfg>::write(const uint8_t c) {
    // XOFF char at the RX isr, but it is properly handled there
    if (!(HWUART->UART_IMR & UART_IMR_TXRDY) && (HWUART->UART_SR & UART_SR_TXRDY)) {
      HWUART->UART_THR = c;
-      return 1;
+      return;
    }

    const uint8_t i = (tx_buffer.head + 1) & (Cfg::TX_SIZE - 1);
@@ -428,7 +428,6 @@ size_t MarlinSerial<Cfg>::write(const uint8_t c) {
    // Enable TX isr - Non atomic, but it will eventually enable TX isr
    HWUART->UART_IER = UART_IER_TXRDY;
  }
-  return 1;
 }

 template<typename Cfg>
@@ -474,21 +473,169 @@ void MarlinSerial<Cfg>::flushTX() {
  }
 }

+/**
+ * Imports from print.h
+ */
+
+template<typename Cfg>
+void MarlinSerial<Cfg>::print(char c, int base) {
+  print((long)c, base);
+}
+
+template<typename Cfg>
+void MarlinSerial<Cfg>::print(unsigned char b, int base) {
+  print((unsigned long)b, base);
+}
+
+template<typename Cfg>
+void MarlinSerial<Cfg>::print(int n, int base) {
+  print((long)n, base);
+}
+
+template<typename Cfg>
+void MarlinSerial<Cfg>::print(unsigned int n, int base) {
+  print((unsigned long)n, base);
+}
+
+template<typename Cfg>
+void MarlinSerial<Cfg>::print(long n, int base) {
+  if (base == 0) write(n);
+  else if (base == 10) {
+    if (n < 0) { print('-'); n = -n; }
+    printNumber(n, 10);
+  }
+  else
+    printNumber(n, base);
+}
+
+template<typename Cfg>
+void MarlinSerial<Cfg>::print(unsigned long n, int base) {
+  if (base == 0) write(n);
+  else printNumber(n, base);
+}
+
+template<typename Cfg>
+void MarlinSerial<Cfg>::print(double n, int digits) {
+  printFloat(n, digits);
+}
+
+template<typename Cfg>
+void MarlinSerial<Cfg>::println() {
+  print('\r');
+  print('\n');
+}
+
+template<typename Cfg>
+void MarlinSerial<Cfg>::println(const String& s) {
+  print(s);
+  println();
+}
+
+template<typename Cfg>
+void MarlinSerial<Cfg>::println(const char c[]) {
+  print(c);
+  println();
+}
+
+template<typename Cfg>
+void MarlinSerial<Cfg>::println(char c, int base) {
+  print(c, base);
+  println();
+}
+
+template<typename Cfg>
+void MarlinSerial<Cfg>::println(unsigned char b, int base) {
+  print(b, base);
+  println();
+}
+
+template<typename Cfg>
+void MarlinSerial<Cfg>::println(int n, int base) {
+  print(n, base);
+  println();
+}
+
+template<typename Cfg>
+void MarlinSerial<Cfg>::println(unsigned int n, int base) {
+  print(n, base);
+  println();
+}
+
+template<typename Cfg>
+void MarlinSerial<Cfg>::println(long n, int base) {
+  print(n, base);
+  println();
+}
+
+template<typename Cfg>
+void MarlinSerial<Cfg>::println(unsigned long n, int base) {
+  print(n, base);
+  println();
+}
+
+template<typename Cfg>
+void MarlinSerial<Cfg>::println(double n, int digits) {
+  print(n, digits);
+  println();
+}
+
+// Private Methods
+template<typename Cfg>
+void MarlinSerial<Cfg>::printNumber(unsigned long n, uint8_t base) {
+  if (n) {
+    unsigned char buf[8 * sizeof(long)]; // Enough space for base 2
+    int8_t i = 0;
+    while (n) {
+      buf[i++] = n % base;
+      n /= base;
+    }
+    while (i--)
+      print((char)(buf[i] + (buf[i] < 10 ? '0' : 'A' - 10)));
+  }
+  else
+    print('0');
+}
+
+template<typename Cfg>
+void MarlinSerial<Cfg>::printFloat(double number, uint8_t digits) {
+  // Handle negative numbers
+  if (number < 0.0) {
+    print('-');
+    number = -number;
+  }
+
+  // Round correctly so that print(1.999, 2) prints as "2.00"
+  double rounding = 0.5;
+  LOOP_L_N(i, digits) rounding *= 0.1;
+  number += rounding;
+
+  // Extract the integer part of the number and print it
+  unsigned long int_part = (unsigned long)number;
+  double remainder = number - (double)int_part;
+  print(int_part);
+
+  // Print the decimal point, but only if there are digits beyond
+  if (digits) {
+    print('.');
+    // Extract digits from the remainder one at a time
+    while (digits--) {
+      remainder *= 10.0;
+      int toPrint = int(remainder);
+      print(toPrint);
+      remainder -= toPrint;
+    }
+  }
+}

 // If not using the USB port as serial port
-#if defined(SERIAL_PORT) && SERIAL_PORT >= 0
-  template class MarlinSerial< MarlinSerialCfg<SERIAL_PORT> >;
-  MSerialT1 customizedSerial1(MarlinSerialCfg<SERIAL_PORT>::EMERGENCYPARSER);
+#if SERIAL_PORT >= 0
+  template class MarlinSerial<MarlinSerialCfg<SERIAL_PORT>>;      // Define
+  MarlinSerial<MarlinSerialCfg<SERIAL_PORT>> customizedSerial1;   // Instantiate
 #endif

 #if defined(SERIAL_PORT_2) && SERIAL_PORT_2 >= 0
-  template class MarlinSerial< MarlinSerialCfg<SERIAL_PORT_2> >;
-  MSerialT2 customizedSerial2(MarlinSerialCfg<SERIAL_PORT_2>::EMERGENCYPARSER);
-#endif
-
-#if defined(SERIAL_PORT_3) && SERIAL_PORT_3 >= 0
-  template class MarlinSerial< MarlinSerialCfg<SERIAL_PORT_3> >;
-  MSerialT3 customizedSerial3(MarlinSerialCfg<SERIAL_PORT_3>::EMERGENCYPARSER);
+  template class MarlinSerial<MarlinSerialCfg<SERIAL_PORT_2>>;    // Define
+  MarlinSerial<MarlinSerialCfg<SERIAL_PORT_2>> customizedSerial2; // Instantiate
 #endif

 #endif // ARDUINO_ARCH_SAM
--- a/Marlin/src/HAL/DUE/MarlinSerial.h
+++ b/Marlin/src/HAL/DUE/MarlinSerial.h
@@ -16,7 +16,7 @@
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 *
 */
 #pragma once
@@ -30,7 +30,11 @@
 #include <WString.h>

 #include "../../inc/MarlinConfigPre.h"
-#include "../../core/serial_hook.h"
+
+#define DEC 10
+#define HEX 16
+#define OCT 8
+#define BIN 2

 // Define constants and variables for buffering incoming serial data.  We're
 // using a ring buffer (I think), in which rx_buffer_head is the index of the
@@ -115,15 +119,42 @@ public:
  static int read();
  static void flush();
  static ring_buffer_pos_t available();
-  static size_t write(const uint8_t c);
+  static void write(const uint8_t c);
  static void flushTX();

-  static inline bool emergency_parser_enabled() { return Cfg::EMERGENCYPARSER; }
-
  FORCE_INLINE static uint8_t dropped() { return Cfg::DROPPED_RX ? rx_dropped_bytes : 0; }
  FORCE_INLINE static uint8_t buffer_overruns() { return Cfg::RX_OVERRUNS ? rx_buffer_overruns : 0; }
  FORCE_INLINE static uint8_t framing_errors() { return Cfg::RX_FRAMING_ERRORS ? rx_framing_errors : 0; }
  FORCE_INLINE static ring_buffer_pos_t rxMaxEnqueued() { return Cfg::MAX_RX_QUEUED ? rx_max_enqueued : 0; }
+
+  FORCE_INLINE static void write(const char* str) { while (*str) write(*str++); }
+  FORCE_INLINE static void write(const uint8_t* buffer, size_t size) { while (size--) write(*buffer++); }
+  FORCE_INLINE static void print(const String& s) { for (int i = 0; i < (int)s.length(); i++) write(s[i]); }
+  FORCE_INLINE static void print(const char* str) { write(str); }
+
+  static void print(char, int = 0);
+  static void print(unsigned char, int = 0);
+  static void print(int, int = DEC);
+  static void print(unsigned int, int = DEC);
+  static void print(long, int = DEC);
+  static void print(unsigned long, int = DEC);
+  static void print(double, int = 2);
+
+  static void println(const String& s);
+  static void println(const char[]);
+  static void println(char, int = 0);
+  static void println(unsigned char, int = 0);
+  static void println(int, int = DEC);
+  static void println(unsigned int, int = DEC);
+  static void println(long, int = DEC);
+  static void println(unsigned long, int = DEC);
+  static void println(double, int = 2);
+  static void println();
+  operator bool() { return true; }
+
+private:
+  static void printNumber(unsigned long, const uint8_t);
+  static void printFloat(double, uint8_t);
 };

 // Serial port configuration
@@ -140,17 +171,10 @@ struct MarlinSerialCfg {
  static constexpr bool MAX_RX_QUEUED     = ENABLED(SERIAL_STATS_MAX_RX_QUEUED);
 };

-#if defined(SERIAL_PORT) && SERIAL_PORT >= 0
-  typedef Serial1Class< MarlinSerial< MarlinSerialCfg<SERIAL_PORT> > > MSerialT1;
-  extern MSerialT1 customizedSerial1;
+#if SERIAL_PORT >= 0
+  extern MarlinSerial<MarlinSerialCfg<SERIAL_PORT>> customizedSerial1;
 #endif

 #if defined(SERIAL_PORT_2) && SERIAL_PORT_2 >= 0
-  typedef Serial1Class< MarlinSerial< MarlinSerialCfg<SERIAL_PORT_2> > > MSerialT2;
-  extern MSerialT2 customizedSerial2;
-#endif
-
-#if defined(SERIAL_PORT_3) && SERIAL_PORT_3 >= 0
-  typedef Serial1Class< MarlinSerial< MarlinSerialCfg<SERIAL_PORT_3> > > MSerialT3;
-  extern MSerialT3 customizedSerial3;
+  extern MarlinSerial<MarlinSerialCfg<SERIAL_PORT_2>> customizedSerial2;
 #endif
--- a/Marlin/src/HAL/DUE/MarlinSerialUSB.cpp
+++ b/Marlin/src/HAL/DUE/MarlinSerialUSB.cpp
@@ -16,16 +16,16 @@
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 *
 */
-#ifdef ARDUINO_ARCH_SAM

 /**
 * MarlinSerial_Due.cpp - Hardware serial library for Arduino DUE
 * Copyright (c) 2017 Eduardo José Tagle. All right reserved
 * Based on MarlinSerial for AVR, copyright (c) 2006 Nicholas Zambetti.  All right reserved.
 */
+#ifdef ARDUINO_ARCH_SAM

 #include "../../inc/MarlinConfig.h"

@@ -33,6 +33,10 @@

 #include "MarlinSerialUSB.h"

+#if ENABLED(EMERGENCY_PARSER)
+  #include "../../feature/e_parser.h"
+#endif
+
 // Imports from Atmel USB Stack/CDC implementation
 extern "C" {
  bool usb_task_cdc_isenabled();
@@ -46,6 +50,10 @@ extern "C" {
 // Pending character
 static int pending_char = -1;

+#if ENABLED(EMERGENCY_PARSER)
+  static EmergencyParser::State emergency_state; // = EP_RESET
+#endif
+
 // Public Methods
 void MarlinSerialUSB::begin(const long) {}

@@ -65,7 +73,9 @@ int MarlinSerialUSB::peek() {

  pending_char = udi_cdc_getc();

-  TERN_(EMERGENCY_PARSER, emergency_parser.update(static_cast<MSerialT1*>(this)->emergency_state, (char)pending_char));
+  #if ENABLED(EMERGENCY_PARSER)
+    emergency_parser.update(emergency_state, (char)pending_char);
+  #endif

  return pending_char;
 }
@@ -87,27 +97,31 @@ int MarlinSerialUSB::read() {

  int c = udi_cdc_getc();

-  TERN_(EMERGENCY_PARSER, emergency_parser.update(static_cast<MSerialT1*>(this)->emergency_state, (char)c));
+  #if ENABLED(EMERGENCY_PARSER)
+    emergency_parser.update(emergency_state, (char)c);
+  #endif

  return c;
 }

-int MarlinSerialUSB::available() {
-  if (pending_char > 0) return pending_char;
-  return pending_char == 0 ||
-    // or USB CDC enumerated and configured on the PC side and some bytes where sent to us */
-    (usb_task_cdc_isenabled() && udi_cdc_is_rx_ready());
+bool MarlinSerialUSB::available() {
+    /* If Pending chars */
+  return pending_char >= 0 ||
+    /* or USB CDC enumerated and configured on the PC side and some
+       bytes where sent to us */
+      (usb_task_cdc_isenabled() && udi_cdc_is_rx_ready());
 }

 void MarlinSerialUSB::flush() { }
+void MarlinSerialUSB::flushTX() { }

-size_t MarlinSerialUSB::write(const uint8_t c) {
+void MarlinSerialUSB::write(const uint8_t c) {

  /* Do not even bother sending anything if USB CDC is not enumerated
     or not configured on the PC side or there is no program on the PC
     listening to our messages */
  if (!usb_task_cdc_isenabled() || !usb_task_cdc_dtr_active())
-    return 0;
+    return;

  /* Wait until the PC has read the pending to be sent data */
  while (usb_task_cdc_isenabled() &&
@@ -119,23 +133,161 @@ size_t MarlinSerialUSB::write(const uint8_t c) {
     or not configured on the PC side or there is no program on the PC
     listening to our messages at this point */
  if (!usb_task_cdc_isenabled() || !usb_task_cdc_dtr_active())
-    return 0;
+    return;

  // Fifo full
  //  udi_cdc_signal_overrun();
  udi_cdc_putc(c);
-  return 1;
+}
+
+/**
+ * Imports from print.h
+ */
+
+void MarlinSerialUSB::print(char c, int base) {
+  print((long)c, base);
+}
+
+void MarlinSerialUSB::print(unsigned char b, int base) {
+  print((unsigned long)b, base);
+}
+
+void MarlinSerialUSB::print(int n, int base) {
+  print((long)n, base);
+}
+
+void MarlinSerialUSB::print(unsigned int n, int base) {
+  print((unsigned long)n, base);
+}
+
+void MarlinSerialUSB::print(long n, int base) {
+  if (base == 0)
+    write(n);
+  else if (base == 10) {
+    if (n < 0) {
+      print('-');
+      n = -n;
+    }
+    printNumber(n, 10);
+  }
+  else
+    printNumber(n, base);
+}
+
+void MarlinSerialUSB::print(unsigned long n, int base) {
+  if (base == 0) write(n);
+  else printNumber(n, base);
+}
+
+void MarlinSerialUSB::print(double n, int digits) {
+  printFloat(n, digits);
+}
+
+void MarlinSerialUSB::println() {
+  print('\r');
+  print('\n');
+}
+
+void MarlinSerialUSB::println(const String& s) {
+  print(s);
+  println();
+}
+
+void MarlinSerialUSB::println(const char c[]) {
+  print(c);
+  println();
+}
+
+void MarlinSerialUSB::println(char c, int base) {
+  print(c, base);
+  println();
+}
+
+void MarlinSerialUSB::println(unsigned char b, int base) {
+  print(b, base);
+  println();
+}
+
+void MarlinSerialUSB::println(int n, int base) {
+  print(n, base);
+  println();
+}
+
+void MarlinSerialUSB::println(unsigned int n, int base) {
+  print(n, base);
+  println();
+}
+
+void MarlinSerialUSB::println(long n, int base) {
+  print(n, base);
+  println();
+}
+
+void MarlinSerialUSB::println(unsigned long n, int base) {
+  print(n, base);
+  println();
+}
+
+void MarlinSerialUSB::println(double n, int digits) {
+  print(n, digits);
+  println();
+}
+
+// Private Methods
+
+void MarlinSerialUSB::printNumber(unsigned long n, uint8_t base) {
+  if (n) {
+    unsigned char buf[8 * sizeof(long)]; // Enough space for base 2
+    int8_t i = 0;
+    while (n) {
+      buf[i++] = n % base;
+      n /= base;
+    }
+    while (i--)
+      print((char)(buf[i] + (buf[i] < 10 ? '0' : 'A' - 10)));
+  }
+  else
+    print('0');
+}
+
+void MarlinSerialUSB::printFloat(double number, uint8_t digits) {
+  // Handle negative numbers
+  if (number < 0.0) {
+    print('-');
+    number = -number;
+  }
+
+  // Round correctly so that print(1.999, 2) prints as "2.00"
+  double rounding = 0.5;
+  LOOP_L_N(i, digits)
+    rounding *= 0.1;
+
+  number += rounding;
+
+  // Extract the integer part of the number and print it
+  unsigned long int_part = (unsigned long)number;
+  double remainder = number - (double)int_part;
+  print(int_part);
+
+  // Print the decimal point, but only if there are digits beyond
+  if (digits) {
+    print('.');
+    // Extract digits from the remainder one at a time
+    while (digits--) {
+      remainder *= 10.0;
+      int toPrint = int(remainder);
+      print(toPrint);
+      remainder -= toPrint;
+    }
+  }
 }

 // Preinstantiate
 #if SERIAL_PORT == -1
-  MSerialT1 customizedSerial1(TERN0(EMERGENCY_PARSER, true));
+  MarlinSerialUSB customizedSerial1;
 #endif
 #if SERIAL_PORT_2 == -1
-  MSerialT2 customizedSerial2(TERN0(EMERGENCY_PARSER, true));
-#endif
-#if SERIAL_PORT_3 == -1
-  MSerialT3 customizedSerial3(TERN0(EMERGENCY_PARSER, true));
+  MarlinSerialUSB customizedSerial2;
 #endif

 #endif // HAS_USB_SERIAL
--- a/Marlin/src/HAL/DUE/MarlinSerialUSB.h
+++ b/Marlin/src/HAL/DUE/MarlinSerialUSB.h
@@ -16,7 +16,7 @@
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 *
 */
 #pragma once
@@ -27,39 +27,73 @@
 */

 #include "../../inc/MarlinConfig.h"
-#include "../../core/serial_hook.h"
+
+#if HAS_USB_SERIAL

 #include <WString.h>

-struct MarlinSerialUSB {
-  void begin(const long);
-  void end();
-  int peek();
-  int read();
-  void flush();
-  int available();
-  size_t write(const uint8_t c);
+#define DEC 10
+#define HEX 16
+#define OCT 8
+#define BIN 2
+
+class MarlinSerialUSB {
+
+public:
+  MarlinSerialUSB() {};
+  static void begin(const long);
+  static void end();
+  static int peek();
+  static int read();
+  static void flush();
+  static void flushTX();
+  static bool available();
+  static void write(const uint8_t c);

  #if ENABLED(SERIAL_STATS_DROPPED_RX)
-    FORCE_INLINE uint32_t dropped() { return 0; }
+    FORCE_INLINE static uint32_t dropped() { return 0; }
  #endif

  #if ENABLED(SERIAL_STATS_MAX_RX_QUEUED)
-    FORCE_INLINE int rxMaxEnqueued() { return 0; }
+    FORCE_INLINE static int rxMaxEnqueued() { return 0; }
  #endif
+
+  FORCE_INLINE static void write(const char* str) { while (*str) write(*str++); }
+  FORCE_INLINE static void write(const uint8_t* buffer, size_t size) { while (size--) write(*buffer++); }
+  FORCE_INLINE static void print(const String& s) { for (int i = 0; i < (int)s.length(); i++) write(s[i]); }
+  FORCE_INLINE static void print(const char* str) { write(str); }
+
+  static void print(char, int = 0);
+  static void print(unsigned char, int = 0);
+  static void print(int, int = DEC);
+  static void print(unsigned int, int = DEC);
+  static void print(long, int = DEC);
+  static void print(unsigned long, int = DEC);
+  static void print(double, int = 2);
+
+  static void println(const String& s);
+  static void println(const char[]);
+  static void println(char, int = 0);
+  static void println(unsigned char, int = 0);
+  static void println(int, int = DEC);
+  static void println(unsigned int, int = DEC);
+  static void println(long, int = DEC);
+  static void println(unsigned long, int = DEC);
+  static void println(double, int = 2);
+  static void println();
+  operator bool() { return true; }
+
+private:
+  static void printNumber(unsigned long, const uint8_t);
+  static void printFloat(double, uint8_t);
 };

 #if SERIAL_PORT == -1
-  typedef Serial1Class<MarlinSerialUSB> MSerialT1;
-  extern MSerialT1 customizedSerial1;
+  extern MarlinSerialUSB customizedSerial1;
 #endif

 #if SERIAL_PORT_2 == -1
-  typedef Serial1Class<MarlinSerialUSB> MSerialT2;
-  extern MSerialT2 customizedSerial2;
+  extern MarlinSerialUSB customizedSerial2;
 #endif

-#if SERIAL_PORT_3 == -1
-  typedef Serial1Class<MarlinSerialUSB> MSerialT3;
-  extern MSerialT3 customizedSerial3;
-#endif
+#endif // HAS_USB_SERIAL
--- a/Marlin/src/HAL/DUE/Servo.cpp
+++ b/Marlin/src/HAL/DUE/Servo.cpp
@@ -16,7 +16,7 @@
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 *
 */

@@ -44,6 +44,7 @@

 #if HAS_SERVOS

+#include "../shared/Marduino.h"
 #include "../shared/servo.h"
 #include "../shared/servo_private.h"

--- a/Marlin/src/HAL/DUE/Tone.cpp
+++ b/Marlin/src/HAL/DUE/Tone.cpp
@@ -18,19 +18,20 @@
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 *
 */

 /**
 * Description: Tone function for Arduino Due and compatible (SAM3X8E)
- * Derived from https://forum.arduino.cc/index.php?topic=136500.msg2903012#msg2903012
+ * Derived from http://forum.arduino.cc/index.php?topic=136500.msg2903012#msg2903012
 */

 #ifdef ARDUINO_ARCH_SAM

 #include "../../inc/MarlinConfig.h"
 #include "HAL.h"
+#include "timers.h"

 static pin_t tone_pin;
 volatile static int32_t toggles;
--- a/Marlin/src/HAL/DUE/dogm/u8g_com_HAL_DUE_shared_hw_spi.cpp
+++ b/Marlin/src/HAL/DUE/dogm/u8g_com_HAL_DUE_shared_hw_spi.cpp
@@ -16,7 +16,7 @@
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 *
 */

@@ -52,23 +52,25 @@
 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
 */

 #ifdef __SAM3X8E__

 #include "../../../inc/MarlinConfigPre.h"

-#if HAS_MARLINUI_U8GLIB
+#if HAS_GRAPHICAL_LCD

 #include <U8glib.h>

 #include "../../../MarlinCore.h"

-#ifndef LCD_SPI_SPEED
-  #define LCD_SPI_SPEED SPI_QUARTER_SPEED
-#endif
+void spiBegin();
+void spiInit(uint8_t spiRate);
+void spiSend(uint8_t b);
+void spiSend(const uint8_t* buf, size_t n);

-#include "../../shared/HAL_SPI.h"
+#include "../../shared/Marduino.h"
 #include "../fastio.h"

 void u8g_SetPIOutput_DUE_hw_spi(u8g_t *u8g, uint8_t pin_index) {
@@ -99,7 +101,11 @@ uint8_t u8g_com_HAL_DUE_shared_hw_spi_fn(u8g_t *u8g, uint8_t msg, uint8_t arg_va

      spiBegin();

-      spiInit(LCD_SPI_SPEED);
+      #ifndef SPI_SPEED
+        #define SPI_SPEED SPI_FULL_SPEED  // use same SPI speed as SD card
+      #endif
+      spiInit(2);
+
      break;

    case U8G_COM_MSG_ADDRESS:                     /* define cmd (arg_val = 0) or data mode (arg_val = 1) */
@@ -139,6 +145,6 @@ uint8_t u8g_com_HAL_DUE_shared_hw_spi_fn(u8g_t *u8g, uint8_t msg, uint8_t arg_va
  return 1;
 }

-#endif // HAS_MARLINUI_U8GLIB
+#endif // HAS_GRAPHICAL_LCD

-#endif // __SAM3X8E__
+#endif //__SAM3X8E__
--- a/Marlin/src/HAL/DUE/dogm/u8g_com_HAL_DUE_st7920_sw_spi.cpp
+++ b/Marlin/src/HAL/DUE/dogm/u8g_com_HAL_DUE_st7920_sw_spi.cpp
@@ -16,7 +16,7 @@
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 *
 */

@@ -59,7 +59,6 @@

 #if ENABLED(U8GLIB_ST7920)

-#include "../../../inc/MarlinConfig.h"
 #include "../../shared/Delay.h"

 #include <U8glib.h>
@@ -146,7 +145,7 @@ uint8_t u8g_com_HAL_DUE_ST7920_sw_spi_fn(u8g_t *u8g, uint8_t msg, uint8_t arg_va
 }

 #if ENABLED(LIGHTWEIGHT_UI)
-  #include "../../../lcd/marlinui.h"
+  #include "../../../lcd/ultralcd.h"
  #include "../../shared/HAL_ST7920.h"

  #define ST7920_CS_PIN LCD_PINS_RS
--- a/Marlin/src/HAL/DUE/dogm/u8g_com_HAL_DUE_sw_spi.cpp
+++ b/Marlin/src/HAL/DUE/dogm/u8g_com_HAL_DUE_sw_spi.cpp
@@ -16,7 +16,7 @@
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 *
 */

@@ -57,7 +57,10 @@

 #include "../../../inc/MarlinConfigPre.h"

-#if HAS_MARLINUI_U8GLIB && DISABLED(U8GLIB_ST7920)
+#if HAS_GRAPHICAL_LCD && DISABLED(U8GLIB_ST7920)
+
+#undef SPI_SPEED
+#define SPI_SPEED 2  // About 2 MHz

 #include "u8g_com_HAL_DUE_sw_spi_shared.h"

@@ -141,5 +144,5 @@ uint8_t u8g_com_HAL_DUE_sw_spi_fn(u8g_t *u8g, uint8_t msg, uint8_t arg_val, void
  return 1;
 }

-#endif // HAS_MARLINUI_U8GLIB && !U8GLIB_ST7920
+#endif // HAS_GRAPHICAL_LCD && !U8GLIB_ST7920
 #endif // ARDUINO_ARCH_SAM
--- a/Marlin/src/HAL/DUE/dogm/u8g_com_HAL_DUE_sw_spi_shared.cpp
+++ b/Marlin/src/HAL/DUE/dogm/u8g_com_HAL_DUE_sw_spi_shared.cpp
@@ -16,7 +16,7 @@
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 *
 */

@@ -57,9 +57,8 @@

 #include "../../../inc/MarlinConfigPre.h"

-#if HAS_MARLINUI_U8GLIB
+#if HAS_GRAPHICAL_LCD

-#include "../../../inc/MarlinConfig.h"
 #include "../../shared/Delay.h"

 #include <U8glib.h>
@@ -109,5 +108,5 @@ void u8g_spiSend_sw_DUE_mode_3(uint8_t val) { // 3.5MHz
  }
 }

-#endif // HAS_MARLINUI_U8GLIB
+#endif // HAS_GRAPHICAL_LCD
 #endif // ARDUINO_ARCH_SAM
--- a/Marlin/src/HAL/DUE/dogm/u8g_com_HAL_DUE_sw_spi_shared.h
+++ b/Marlin/src/HAL/DUE/dogm/u8g_com_HAL_DUE_sw_spi_shared.h
@@ -16,7 +16,7 @@
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 *
 */
 #pragma once
--- a/Marlin/src/HAL/DUE/eeprom_wired.cpp
+++ b/Marlin/src/HAL/DUE/eeprom_wired.cpp
@@ -17,38 +17,42 @@
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 *
 */
 #ifdef ARDUINO_ARCH_SAM

+#include "../../inc/MarlinConfigPre.h"
+
+#if ENABLED(EEPROM_SETTINGS)
+
 #include "../../inc/MarlinConfig.h"
-
-#if USE_WIRED_EEPROM
-
-/**
- * PersistentStore for Arduino-style EEPROM interface
- * with simple implementations supplied by Marlin.
- */
-
-#include "../shared/eeprom_if.h"
 #include "../shared/eeprom_api.h"

-#ifndef MARLIN_EEPROM_SIZE
-  #error "MARLIN_EEPROM_SIZE is required for I2C / SPI EEPROM."
+#if !defined(E2END) && ENABLED(FLASH_EEPROM_EMULATION)
+  #define E2END 0xFFF // Default to Flash emulated EEPROM size (EepromEmulation_Due.cpp)
 #endif
-size_t PersistentStore::capacity()    { return MARLIN_EEPROM_SIZE; }
-bool PersistentStore::access_start()  { eeprom_init(); return true; }
-bool PersistentStore::access_finish() { return true; }
+
+extern void eeprom_flush();
+
+bool PersistentStore::access_start() { return true; }
+
+bool PersistentStore::access_finish() {
+  #if ENABLED(FLASH_EEPROM_EMULATION)
+    eeprom_flush();
+  #endif
+  return true;
+}

 bool PersistentStore::write_data(int &pos, const uint8_t *value, size_t size, uint16_t *crc) {
-  uint16_t written = 0;
  while (size--) {
    uint8_t * const p = (uint8_t * const)pos;
    uint8_t v = *value;
-    if (v != eeprom_read_byte(p)) { // EEPROM has only ~100,000 write cycles, so only write bytes that have changed!
+    // EEPROM has only ~100,000 write cycles,
+    // so only write bytes that have changed!
+    if (v != eeprom_read_byte(p)) {
      eeprom_write_byte(p, v);
-      if (++written & 0x7F) delay(2); else safe_delay(2); // Avoid triggering watchdog during long EEPROM writes
+      delay(2);
      if (eeprom_read_byte(p) != v) {
        SERIAL_ECHO_MSG(STR_ERR_EEPROM_WRITE);
        return true;
@@ -57,11 +61,11 @@ bool PersistentStore::write_data(int &pos, const uint8_t *value, size_t size, ui
    crc16(crc, &v, 1);
    pos++;
    value++;
-  }
+  };
  return false;
 }

-bool PersistentStore::read_data(int &pos, uint8_t *value, size_t size, uint16_t *crc, const bool writing/*=true*/) {
+bool PersistentStore::read_data(int &pos, uint8_t* value, size_t size, uint16_t *crc, const bool writing/*=true*/) {
  do {
    uint8_t c = eeprom_read_byte((uint8_t*)pos);
    if (writing) *value = c;
@@ -72,5 +76,7 @@ bool PersistentStore::read_data(int &pos, uint8_t *value, size_t size, uint16_t
  return false;
 }

-#endif // USE_WIRED_EEPROM
+size_t PersistentStore::capacity() { return E2END + 1; }
+
+#endif // EEPROM_SETTINGS
 #endif // ARDUINO_ARCH_SAM
--- a/Marlin/src/HAL/DUE/endstop_interrupts.h
+++ b/Marlin/src/HAL/DUE/endstop_interrupts.h
@@ -16,7 +16,7 @@
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 *
 */
 #pragma once
@@ -47,21 +47,43 @@ void endstop_ISR() { endstops.update(); }

 void setup_endstop_interrupts() {
  #define _ATTACH(P) attachInterrupt(digitalPinToInterrupt(P), endstop_ISR, CHANGE)
-  TERN_(HAS_X_MAX, _ATTACH(X_MAX_PIN));
-  TERN_(HAS_X_MIN, _ATTACH(X_MIN_PIN));
-  TERN_(HAS_Y_MAX, _ATTACH(Y_MAX_PIN));
-  TERN_(HAS_Y_MIN, _ATTACH(Y_MIN_PIN));
-  TERN_(HAS_Z_MAX, _ATTACH(Z_MAX_PIN));
-  TERN_(HAS_Z_MIN, _ATTACH(Z_MIN_PIN));
-  TERN_(HAS_X2_MAX, _ATTACH(X2_MAX_PIN));
-  TERN_(HAS_X2_MIN, _ATTACH(X2_MIN_PIN));
-  TERN_(HAS_Y2_MAX, _ATTACH(Y2_MAX_PIN));
-  TERN_(HAS_Y2_MIN, _ATTACH(Y2_MIN_PIN));
-  TERN_(HAS_Z2_MAX, _ATTACH(Z2_MAX_PIN));
-  TERN_(HAS_Z2_MIN, _ATTACH(Z2_MIN_PIN));
-  TERN_(HAS_Z3_MAX, _ATTACH(Z3_MAX_PIN));
-  TERN_(HAS_Z3_MIN, _ATTACH(Z3_MIN_PIN));
-  TERN_(HAS_Z4_MAX, _ATTACH(Z4_MAX_PIN));
-  TERN_(HAS_Z4_MIN, _ATTACH(Z4_MIN_PIN));
-  TERN_(HAS_Z_MIN_PROBE_PIN, _ATTACH(Z_MIN_PROBE_PIN));
+  #if HAS_X_MAX
+    _ATTACH(X_MAX_PIN);
+  #endif
+  #if HAS_X_MIN
+    _ATTACH(X_MIN_PIN);
+  #endif
+  #if HAS_Y_MAX
+    _ATTACH(Y_MAX_PIN);
+  #endif
+  #if HAS_Y_MIN
+    _ATTACH(Y_MIN_PIN);
+  #endif
+  #if HAS_Z_MAX
+    _ATTACH(Z_MAX_PIN);
+  #endif
+  #if HAS_Z_MIN
+     _ATTACH(Z_MIN_PIN);
+  #endif
+  #if HAS_Z2_MAX
+    _ATTACH(Z2_MAX_PIN);
+  #endif
+  #if HAS_Z2_MIN
+    _ATTACH(Z2_MIN_PIN);
+  #endif
+  #if HAS_Z3_MAX
+    _ATTACH(Z3_MAX_PIN);
+  #endif
+  #if HAS_Z3_MIN
+    _ATTACH(Z3_MIN_PIN);
+  #endif
+  #if HAS_Z4_MAX
+    _ATTACH(Z4_MAX_PIN);
+  #endif
+  #if HAS_Z4_MIN
+    _ATTACH(Z4_MIN_PIN);
+  #endif
+  #if HAS_Z_MIN_PROBE_PIN
+    _ATTACH(Z_MIN_PROBE_PIN);
+  #endif
 }
--- a/Marlin/src/HAL/DUE/fastio.h
+++ b/Marlin/src/HAL/DUE/fastio.h
@@ -16,7 +16,7 @@
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 *
 */
 #pragma once
@@ -33,7 +33,7 @@
 * For ARDUINO_ARCH_SAM
 * Note the code here was specifically crafted by disassembling what GCC produces
 * out of it, so GCC is able to optimize it out as much as possible to the least
- * amount of instructions. Be very careful if you modify them, as "clean code"
+ * amount of instructions. Be very carefull if you modify them, as "clean code"
 * leads to less efficient compiled code!!
 */

@@ -50,7 +50,7 @@
 #define PWM_PIN(P)              WITHIN(P, 2, 13)

 #ifndef MASK
-  #define MASK(PIN) _BV(PIN)
+  #define MASK(PIN) (1 << PIN)
 #endif

 /**
@@ -58,7 +58,7 @@
 *
 * Now you can simply SET_OUTPUT(STEP); WRITE(STEP, HIGH); WRITE(STEP, LOW);
 *
- * Why double up on these macros? see https://gcc.gnu.org/onlinedocs/cpp/Stringification.html
+ * Why double up on these macros? see http://gcc.gnu.org/onlinedocs/cpp/Stringification.html
 */

 // Read a pin
@@ -163,9 +163,6 @@
 #define SET_INPUT(IO)        _SET_INPUT(IO)
 // Set pin as input with pullup (wrapper)
 #define SET_INPUT_PULLUP(IO) do{ _SET_INPUT(IO); _PULLUP(IO, HIGH); }while(0)
-// Set pin as input with pulldown (substitution)
-#define SET_INPUT_PULLDOWN   SET_INPUT
-
 // Set pin as output (wrapper) -  reads the pin and sets the output to that value
 #define SET_OUTPUT(IO)       _SET_OUTPUT(IO)
 // Set pin as PWM
@@ -177,7 +174,7 @@
 #define IS_OUTPUT(IO)        ((digitalPinToPort(IO)->PIO_OSR & digitalPinToBitMask(IO)) != 0)

 // Shorthand
-#define OUT_WRITE(IO,V)      do{ SET_OUTPUT(IO); WRITE(IO,V); }while(0)
+#define OUT_WRITE(IO,V)       { SET_OUTPUT(IO); WRITE(IO,V); }

 // digitalRead/Write wrappers
 #define extDigitalRead(IO)    digitalRead(IO)
@@ -480,7 +477,7 @@
 #define DIO91_PIN 15
 #define DIO91_WPORT PIOB

-#ifdef ARDUINO_SAM_ARCHIM
+#if ARDUINO_SAM_ARCHIM

  #define DIO92_PIN 11
  #define DIO92_WPORT PIOC
--- a/Marlin/src/HAL/DUE/fastio/G2_PWM.cpp
+++ b/Marlin/src/HAL/DUE/fastio/G2_PWM.cpp
@@ -16,7 +16,7 @@
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 *
 */

@@ -154,7 +154,7 @@ void Stepper::digipot_init() {
  NVIC_SetPriority(PWM_IRQn, NVIC_EncodePriority(0, 10, 0));  // normal priority for PWM module (can stand some jitter on the Vref signals)
 }

-void Stepper::set_digipot_current(const uint8_t driver, const int16_t current) {
+void Stepper::digipot_current(const uint8_t driver, const int16_t current) {

  if (!(PWM->PWM_CH_NUM[0].PWM_CPRD == PWM_PERIOD_US)) digipot_init();  // Init PWM system if needed

--- a/Marlin/src/HAL/DUE/fastio/G2_PWM.h
+++ b/Marlin/src/HAL/DUE/fastio/G2_PWM.h
@@ -16,7 +16,7 @@
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 *
 */
 #pragma once
--- a/Marlin/src/HAL/DUE/fastio/G2_pins.h
+++ b/Marlin/src/HAL/DUE/fastio/G2_pins.h
@@ -16,7 +16,7 @@
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 *
 */
 #pragma once
--- a/Marlin/src/HAL/DUE/inc/Conditionals_LCD.h
+++ b/Marlin/src/HAL/DUE/inc/Conditionals_LCD.h
@@ -16,11 +16,7 @@
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 *
 */
 #pragma once
-
-#if HAS_SPI_TFT || HAS_FSMC_TFT
-  #error "Sorry! TFT displays are not available for HAL/DUE."
-#endif
--- a/Marlin/src/HAL/DUE/inc/Conditionals_adv.h
+++ b/Marlin/src/HAL/DUE/inc/Conditionals_adv.h
@@ -16,7 +16,7 @@
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 *
 */
 #pragma once
--- a/Marlin/src/HAL/DUE/inc/Conditionals_post.h
+++ b/Marlin/src/HAL/DUE/inc/Conditionals_post.h
@@ -16,13 +16,13 @@
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 *
 */
 #pragma once

 #if USE_FALLBACK_EEPROM
+  #undef SRAM_EEPROM_EMULATION
+  #undef SDCARD_EEPROM_EMULATION
  #define FLASH_EEPROM_EMULATION
-#elif EITHER(I2C_EEPROM, SPI_EEPROM)
-  #define USE_SHARED_EEPROM 1
 #endif
--- a/Marlin/src/HAL/DUE/inc/SanityCheck.h
+++ b/Marlin/src/HAL/DUE/inc/SanityCheck.h
@@ -16,7 +16,7 @@
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 *
 */
 #pragma once
@@ -40,7 +40,7 @@
 * Usually the hardware SPI pins are only available to the LCD. This makes the DUE hard SPI used at the same time
 * as the TMC2130 soft SPI the most common setup.
 */
-#define _IS_HW_SPI(P) (defined(TMC_SW_##P) && (TMC_SW_##P == SD_MOSI_PIN || TMC_SW_##P == SD_MISO_PIN || TMC_SW_##P == SD_SCK_PIN))
+#define _IS_HW_SPI(P) (defined(TMC_SW_##P) && (TMC_SW_##P == MOSI_PIN || TMC_SW_##P == MISO_PIN || TMC_SW_##P == SCK_PIN))

 #if ENABLED(SDSUPPORT) && HAS_DRIVER(TMC2130)
  #if ENABLED(TMC_USE_SW_SPI)
@@ -52,10 +52,10 @@
  #endif
 #endif

-#if ENABLED(FAST_PWM_FAN) || SPINDLE_LASER_FREQUENCY
-  #error "Features requiring Hardware PWM (FAST_PWM_FAN, SPINDLE_LASER_FREQUENCY) are not yet supported on DUE."
+#if ENABLED(FAST_PWM_FAN)
+  #error "FAST_PWM_FAN is not yet implemented for this platform."
 #endif

 #if HAS_TMC_SW_SERIAL
-  #error "TMC220x Software Serial is not supported on the DUE platform."
+  #error "TMC220x Software Serial is not supported on this platform."
 #endif
--- a/Marlin/src/HAL/DUE/pinsDebug.h
+++ b/Marlin/src/HAL/DUE/pinsDebug.h
@@ -13,7 +13,7 @@
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 *
 */

@@ -179,4 +179,5 @@ void pwm_details(int32_t pin) {
 * ----------------+--------
 *  ID             |  PB11
 *  VBOF           |  PB10
+ *
 */
--- a/Marlin/src/HAL/DUE/spi_pins.h
+++ b/Marlin/src/HAL/DUE/spi_pins.h
@@ -16,7 +16,7 @@
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 *
 */
 #pragma once
@@ -43,22 +43,22 @@
    #define SPI_PIN         87
    #define SPI_CHAN         1
  #endif
-  #define SD_SCK_PIN        76
-  #define SD_MISO_PIN       74
-  #define SD_MOSI_PIN       75
+  #define SCK_PIN           76
+  #define MISO_PIN          74
+  #define MOSI_PIN          75
 #else
  // defaults
  #define DUE_SOFTWARE_SPI
-  #ifndef SD_SCK_PIN
-    #define SD_SCK_PIN      52
+  #ifndef SCK_PIN
+    #define SCK_PIN           52
  #endif
-  #ifndef SD_MISO_PIN
-    #define SD_MISO_PIN     50
+  #ifndef MISO_PIN
+    #define MISO_PIN          50
  #endif
-  #ifndef SD_MOSI_PIN
-    #define SD_MOSI_PIN     51
+  #ifndef MOSI_PIN
+    #define MOSI_PIN          51
  #endif
 #endif

 /* A.28, A.29, B.21, C.26, C.29 */
-#define SD_SS_PIN         SDSS
+#define SS_PIN            SDSS
--- a/Marlin/src/HAL/DUE/timers.cpp
+++ b/Marlin/src/HAL/DUE/timers.cpp
@@ -16,12 +16,14 @@
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 *
 */

 /**
- * HAL Timers for Arduino Due and compatible (SAM3X8E)
+ * Description: HAL for Arduino Due and compatible (SAM3X8E)
+ *
+ * For ARDUINO_ARCH_SAM
 */

 #ifdef ARDUINO_ARCH_SAM
@@ -32,6 +34,8 @@
 #include "../../inc/MarlinConfig.h"
 #include "HAL.h"

+#include "timers.h"
+
 // ------------------------
 // Local defines
 // ------------------------
@@ -121,7 +125,7 @@ void HAL_timer_disable_interrupt(const uint8_t timer_num) {

 // missing from CMSIS: Check if interrupt is enabled or not
 static bool NVIC_GetEnabledIRQ(IRQn_Type IRQn) {
-  return TEST(NVIC->ISER[uint32_t(IRQn) >> 5], uint32_t(IRQn) & 0x1F);
+  return (NVIC->ISER[(uint32_t)(IRQn) >> 5] & (1 << ((uint32_t)(IRQn) & 0x1F))) != 0;
 }

 bool HAL_timer_interrupt_enabled(const uint8_t timer_num) {
--- a/Marlin/src/HAL/DUE/timers.h
+++ b/Marlin/src/HAL/DUE/timers.h
@@ -15,13 +15,15 @@
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 *
 */
 #pragma once

 /**
- * HAL Timers for Arduino Due and compatible (SAM3X8E)
+ * HAL for Arduino Due and compatible (SAM3X8E)
+ *
+ * For ARDUINO_ARCH_SAM
 */

 #include <stdint.h>
@@ -38,17 +40,11 @@ typedef uint32_t hal_timer_t;
 #define HAL_TIMER_RATE         ((F_CPU) / 2)    // frequency of timers peripherals

 #ifndef STEP_TIMER_NUM
-  #define STEP_TIMER_NUM        2  // Timer Index for Stepper
-#endif
-#ifndef PULSE_TIMER_NUM
-  #define PULSE_TIMER_NUM       STEP_TIMER_NUM
-#endif
-#ifndef TEMP_TIMER_NUM
-  #define TEMP_TIMER_NUM        4  // Timer Index for Temperature
-#endif
-#ifndef TONE_TIMER_NUM
-  #define TONE_TIMER_NUM        6  // index of timer to use for beeper tones
+#define STEP_TIMER_NUM 2  // index of timer to use for stepper
 #endif
+#define TEMP_TIMER_NUM 4  // index of timer to use for temperature
+#define PULSE_TIMER_NUM STEP_TIMER_NUM
+#define TONE_TIMER_NUM 6  // index of timer to use for beeper tones

 #define TEMP_TIMER_FREQUENCY   1000 // temperature interrupt frequency

@@ -70,12 +66,8 @@ typedef uint32_t hal_timer_t;
 #ifndef HAL_STEP_TIMER_ISR
  #define HAL_STEP_TIMER_ISR() void TC2_Handler()
 #endif
-#ifndef HAL_TEMP_TIMER_ISR
-  #define HAL_TEMP_TIMER_ISR() void TC4_Handler()
-#endif
-#ifndef HAL_TONE_TIMER_ISR
-  #define HAL_TONE_TIMER_ISR() void TC6_Handler()
-#endif
+#define HAL_TEMP_TIMER_ISR()  void TC4_Handler()
+#define HAL_TONE_TIMER_ISR()  void TC6_Handler()

 // ------------------------
 // Types
--- a/Marlin/src/HAL/DUE/upload_extra_script.py
+++ b/Marlin/src/HAL/DUE/upload_extra_script.py
@@ -1,18 +0,0 @@
-#
-# Set upload_command
-#
-#  Windows: bossac.exe
-#  Other: leave unchanged
-#
-
-import platform
-current_OS = platform.system()
-
-if current_OS == 'Windows':
-
-	Import("env")
-
-	# Use bossac.exe on Windows
-	env.Replace(
-	    UPLOADCMD="bossac --info --unlock --write --verify --reset --erase -U false --boot $SOURCE"
-	)
--- a/Marlin/src/HAL/DUE/usb/arduino_due_x.h
+++ b/Marlin/src/HAL/DUE/usb/arduino_due_x.h
@@ -43,7 +43,7 @@
 #pragma once

 /**
- * Support and FAQ: visit <a href="https://www.atmel.com/design-support/">Atmel Support</a>
+ * Support and FAQ: visit <a href="http://www.atmel.com/design-support/">Atmel Support</a>
 */

 /**
@@ -93,5 +93,5 @@
 #define USB_VBOF_GPIO               (PIO_PB10_IDX)
 #define USB_VBOF_FLAGS              (PIO_PERIPH_A | PIO_DEFAULT)
 /*! Active level of the USB_VBOF output pin. */
-#define USB_VBOF_ACTIVE_STATE       LOW
+#define USB_VBOF_ACTIVE_LEVEL       LOW
 /* ------------------------------------------------------------------------ */
--- a/Marlin/src/HAL/DUE/usb/compiler.h
+++ b/Marlin/src/HAL/DUE/usb/compiler.h
@@ -41,7 +41,7 @@
 *
 */
 /*
- * Support and FAQ: visit <a href="https://www.atmel.com/design-support/">Atmel Support</a>
+ * Support and FAQ: visit <a href="http://www.atmel.com/design-support/">Atmel Support</a>
 */

 #ifndef UTILS_COMPILER_H
@@ -173,11 +173,11 @@
 #   define __always_inline   __forceinline
 #elif (defined __GNUC__)
 #ifdef __always_inline
-# undef __always_inline
+#	undef __always_inline
 #endif
-# define __always_inline   inline __attribute__((__always_inline__))
+#	define __always_inline   inline __attribute__((__always_inline__))
 #elif (defined __ICCARM__)
-# define __always_inline   _Pragma("inline=forced")
+#	define __always_inline   _Pragma("inline=forced")
 #endif

 /**
@@ -188,11 +188,11 @@
 * heuristics and not inline the function.
 */
 #ifdef __CC_ARM
-# define __no_inline   __attribute__((noinline))
+#   define __no_inline   __attribute__((noinline))
 #elif (defined __GNUC__)
-# define __no_inline   __attribute__((__noinline__))
+#	define __no_inline   __attribute__((__noinline__))
 #elif (defined __ICCARM__)
-# define __no_inline   _Pragma("inline=never")
+#	define __no_inline   _Pragma("inline=never")
 #endif

 /*! \brief This macro is used to test fatal errors.
@@ -211,9 +211,9 @@
 #  else
 #undef TEST_SUITE_DEFINE_ASSERT_MACRO
 #    define Assert(expr) \
-  {\
-    if (!(expr)) while (true);\
-  }
+	{\
+		if (!(expr)) while (true);\
+	}
 #  endif
 #else
 #  define Assert(expr) ((void) 0)
@@ -609,37 +609,37 @@ typedef struct
 #   define clz(u)              ((u) ? __CLZ(u) : 32)
 #else
 #   define clz(u)              (((u) == 0)          ? 32 : \
-                                ((u) & (1UL << 31)) ?  0 : \
-                                ((u) & (1UL << 30)) ?  1 : \
-                                ((u) & (1UL << 29)) ?  2 : \
-                                ((u) & (1UL << 28)) ?  3 : \
-                                ((u) & (1UL << 27)) ?  4 : \
-                                ((u) & (1UL << 26)) ?  5 : \
-                                ((u) & (1UL << 25)) ?  6 : \
-                                ((u) & (1UL << 24)) ?  7 : \
-                                ((u) & (1UL << 23)) ?  8 : \
-                                ((u) & (1UL << 22)) ?  9 : \
-                                ((u) & (1UL << 21)) ? 10 : \
-                                ((u) & (1UL << 20)) ? 11 : \
-                                ((u) & (1UL << 19)) ? 12 : \
-                                ((u) & (1UL << 18)) ? 13 : \
-                                ((u) & (1UL << 17)) ? 14 : \
-                                ((u) & (1UL << 16)) ? 15 : \
-                                ((u) & (1UL << 15)) ? 16 : \
-                                ((u) & (1UL << 14)) ? 17 : \
-                                ((u) & (1UL << 13)) ? 18 : \
-                                ((u) & (1UL << 12)) ? 19 : \
-                                ((u) & (1UL << 11)) ? 20 : \
-                                ((u) & (1UL << 10)) ? 21 : \
-                                ((u) & (1UL <<  9)) ? 22 : \
-                                ((u) & (1UL <<  8)) ? 23 : \
-                                ((u) & (1UL <<  7)) ? 24 : \
-                                ((u) & (1UL <<  6)) ? 25 : \
-                                ((u) & (1UL <<  5)) ? 26 : \
-                                ((u) & (1UL <<  4)) ? 27 : \
-                                ((u) & (1UL <<  3)) ? 28 : \
-                                ((u) & (1UL <<  2)) ? 29 : \
-                                ((u) & (1UL <<  1)) ? 30 : \
+                                ((u) & (1ul << 31)) ?  0 : \
+                                ((u) & (1ul << 30)) ?  1 : \
+                                ((u) & (1ul << 29)) ?  2 : \
+                                ((u) & (1ul << 28)) ?  3 : \
+                                ((u) & (1ul << 27)) ?  4 : \
+                                ((u) & (1ul << 26)) ?  5 : \
+                                ((u) & (1ul << 25)) ?  6 : \
+                                ((u) & (1ul << 24)) ?  7 : \
+                                ((u) & (1ul << 23)) ?  8 : \
+                                ((u) & (1ul << 22)) ?  9 : \
+                                ((u) & (1ul << 21)) ? 10 : \
+                                ((u) & (1ul << 20)) ? 11 : \
+                                ((u) & (1ul << 19)) ? 12 : \
+                                ((u) & (1ul << 18)) ? 13 : \
+                                ((u) & (1ul << 17)) ? 14 : \
+                                ((u) & (1ul << 16)) ? 15 : \
+                                ((u) & (1ul << 15)) ? 16 : \
+                                ((u) & (1ul << 14)) ? 17 : \
+                                ((u) & (1ul << 13)) ? 18 : \
+                                ((u) & (1ul << 12)) ? 19 : \
+                                ((u) & (1ul << 11)) ? 20 : \
+                                ((u) & (1ul << 10)) ? 21 : \
+                                ((u) & (1ul <<  9)) ? 22 : \
+                                ((u) & (1ul <<  8)) ? 23 : \
+                                ((u) & (1ul <<  7)) ? 24 : \
+                                ((u) & (1ul <<  6)) ? 25 : \
+                                ((u) & (1ul <<  5)) ? 26 : \
+                                ((u) & (1ul <<  4)) ? 27 : \
+                                ((u) & (1ul <<  3)) ? 28 : \
+                                ((u) & (1ul <<  2)) ? 29 : \
+                                ((u) & (1ul <<  1)) ? 30 : \
                                31)
 #endif
 #endif
@@ -654,38 +654,38 @@ typedef struct
 #if (defined __GNUC__) || (defined __CC_ARM)
 #   define ctz(u)              ((u) ? __builtin_ctz(u) : 32)
 #else
-#   define ctz(u)              ((u) & (1UL <<  0) ?  0 : \
-                                (u) & (1UL <<  1) ?  1 : \
-                                (u) & (1UL <<  2) ?  2 : \
-                                (u) & (1UL <<  3) ?  3 : \
-                                (u) & (1UL <<  4) ?  4 : \
-                                (u) & (1UL <<  5) ?  5 : \
-                                (u) & (1UL <<  6) ?  6 : \
-                                (u) & (1UL <<  7) ?  7 : \
-                                (u) & (1UL <<  8) ?  8 : \
-                                (u) & (1UL <<  9) ?  9 : \
-                                (u) & (1UL << 10) ? 10 : \
-                                (u) & (1UL << 11) ? 11 : \
-                                (u) & (1UL << 12) ? 12 : \
-                                (u) & (1UL << 13) ? 13 : \
-                                (u) & (1UL << 14) ? 14 : \
-                                (u) & (1UL << 15) ? 15 : \
-                                (u) & (1UL << 16) ? 16 : \
-                                (u) & (1UL << 17) ? 17 : \
-                                (u) & (1UL << 18) ? 18 : \
-                                (u) & (1UL << 19) ? 19 : \
-                                (u) & (1UL << 20) ? 20 : \
-                                (u) & (1UL << 21) ? 21 : \
-                                (u) & (1UL << 22) ? 22 : \
-                                (u) & (1UL << 23) ? 23 : \
-                                (u) & (1UL << 24) ? 24 : \
-                                (u) & (1UL << 25) ? 25 : \
-                                (u) & (1UL << 26) ? 26 : \
-                                (u) & (1UL << 27) ? 27 : \
-                                (u) & (1UL << 28) ? 28 : \
-                                (u) & (1UL << 29) ? 29 : \
-                                (u) & (1UL << 30) ? 30 : \
-                                (u) & (1UL << 31) ? 31 : \
+#   define ctz(u)              ((u) & (1ul <<  0) ?  0 : \
+                                (u) & (1ul <<  1) ?  1 : \
+                                (u) & (1ul <<  2) ?  2 : \
+                                (u) & (1ul <<  3) ?  3 : \
+                                (u) & (1ul <<  4) ?  4 : \
+                                (u) & (1ul <<  5) ?  5 : \
+                                (u) & (1ul <<  6) ?  6 : \
+                                (u) & (1ul <<  7) ?  7 : \
+                                (u) & (1ul <<  8) ?  8 : \
+                                (u) & (1ul <<  9) ?  9 : \
+                                (u) & (1ul << 10) ? 10 : \
+                                (u) & (1ul << 11) ? 11 : \
+                                (u) & (1ul << 12) ? 12 : \
+                                (u) & (1ul << 13) ? 13 : \
+                                (u) & (1ul << 14) ? 14 : \
+                                (u) & (1ul << 15) ? 15 : \
+                                (u) & (1ul << 16) ? 16 : \
+                                (u) & (1ul << 17) ? 17 : \
+                                (u) & (1ul << 18) ? 18 : \
+                                (u) & (1ul << 19) ? 19 : \
+                                (u) & (1ul << 20) ? 20 : \
+                                (u) & (1ul << 21) ? 21 : \
+                                (u) & (1ul << 22) ? 22 : \
+                                (u) & (1ul << 23) ? 23 : \
+                                (u) & (1ul << 24) ? 24 : \
+                                (u) & (1ul << 25) ? 25 : \
+                                (u) & (1ul << 26) ? 26 : \
+                                (u) & (1ul << 27) ? 27 : \
+                                (u) & (1ul << 28) ? 28 : \
+                                (u) & (1ul << 29) ? 29 : \
+                                (u) & (1ul << 30) ? 30 : \
+                                (u) & (1ul << 31) ? 31 : \
                                32)
 #endif
 #endif
@@ -1106,16 +1106,17 @@ static inline uint16_t convert_byte_array_to_16_bit(uint8_t *data)
 /* Converts a 8 Byte array into a 32-Bit value */
 static inline uint32_t convert_byte_array_to_32_bit(uint8_t *data)
 {
-  union
-  {
-    uint32_t u32;
-    uint8_t u8[8];
-  }long_addr;
-  uint8_t index;
-  for (index = 0; index < 4; index++) {
-    long_addr.u8[index] = *data++;
-  }
-  return long_addr.u32;
+	union
+	{
+		uint32_t u32;
+		uint8_t u8[8];
+	}long_addr;
+	uint8_t index;
+	for (index = 0; index < 4; index++)
+	{
+		long_addr.u8[index] = *data++;
+	}
+	return long_addr.u32;
 }

 /**
--- a/Marlin/src/HAL/DUE/usb/conf_access.h
+++ b/Marlin/src/HAL/DUE/usb/conf_access.h
@@ -41,7 +41,7 @@
 *
 */
 /*
- * Support and FAQ: visit <a href="https://www.atmel.com/design-support/">Atmel Support</a>
+ * Support and FAQ: visit <a href="http://www.atmel.com/design-support/">Atmel Support</a>
 */

 #ifndef _CONF_ACCESS_H_
--- a/Marlin/src/HAL/DUE/usb/conf_clock.h
+++ b/Marlin/src/HAL/DUE/usb/conf_clock.h
@@ -41,7 +41,7 @@
 *
 */
 /*
- * Support and FAQ: visit <a href="https://www.atmel.com/design-support/">Atmel Support</a>
+ * Support and FAQ: visit <a href="http://www.atmel.com/design-support/">Atmel Support</a>
 */

 #ifndef CONF_CLOCK_H_INCLUDED
--- a/Marlin/src/HAL/DUE/usb/conf_usb.h
+++ b/Marlin/src/HAL/DUE/usb/conf_usb.h
@@ -41,7 +41,7 @@
 *
 */
 /*
- * Support and FAQ: visit <a href="https://www.atmel.com/design-support/">Atmel Support</a>
+ * Support and FAQ: visit <a href="http://www.atmel.com/design-support/">Atmel Support</a>
 */

 #ifndef _CONF_USB_H_
@@ -78,6 +78,10 @@
 //! To define a Full speed device
 //#define USB_DEVICE_FULL_SPEED

+#if MB(ARCHIM1)
+  #define USB_DEVICE_FULL_SPEED
+#endif
+
 //! To authorize the High speed
 #ifndef USB_DEVICE_FULL_SPEED
  #if (UC3A3||UC3A4)
--- a/Marlin/src/HAL/DUE/usb/ctrl_access.c
+++ b/Marlin/src/HAL/DUE/usb/ctrl_access.c
@@ -53,7 +53,7 @@
 *
 ******************************************************************************/
 /*
- * Support and FAQ: visit <a href="https://www.atmel.com/design-support/">Atmel Support</a>
+ * Support and FAQ: visit <a href="http://www.atmel.com/design-support/">Atmel Support</a>
 */

 #ifdef ARDUINO_ARCH_SAM
--- a/Marlin/src/HAL/DUE/usb/ctrl_access.h
+++ b/Marlin/src/HAL/DUE/usb/ctrl_access.h
@@ -53,7 +53,7 @@
 *
 ******************************************************************************/
 /*
- * Support and FAQ: visit <a href="https://www.atmel.com/design-support/">Atmel Support</a>
+ * Support and FAQ: visit <a href="http://www.atmel.com/design-support/">Atmel Support</a>
 */


--- a/Marlin/src/HAL/DUE/usb/genclk.h
+++ b/Marlin/src/HAL/DUE/usb/genclk.h
@@ -41,7 +41,7 @@
 *
 */
 /*
- * Support and FAQ: visit <a href="https://www.atmel.com/design-support/">Atmel Support</a>
+ * Support and FAQ: visit <a href="http://www.atmel.com/design-support/">Atmel Support</a>
 */

 #ifndef CHIP_GENCLK_H_INCLUDED
--- a/Marlin/src/HAL/DUE/usb/mrepeat.h
+++ b/Marlin/src/HAL/DUE/usb/mrepeat.h
@@ -41,7 +41,7 @@
 *
 */
 /*
- * Support and FAQ: visit <a href="https://www.atmel.com/design-support/">Atmel Support</a>
+ * Support and FAQ: visit <a href="http://www.atmel.com/design-support/">Atmel Support</a>
 */

 #ifndef _MREPEAT_H_
--- a/Marlin/src/HAL/DUE/usb/osc.h
+++ b/Marlin/src/HAL/DUE/usb/osc.h
@@ -41,7 +41,7 @@
 *
 */
 /*
- * Support and FAQ: visit <a href="https://www.atmel.com/design-support/">Atmel Support</a>
+ * Support and FAQ: visit <a href="http://www.atmel.com/design-support/">Atmel Support</a>
 */

 #ifndef CHIP_OSC_H_INCLUDED
--- a/Show More
+++ b/Show More
Author	SHA1	Message	Date
Scott Lahteine	30245b47ad	Update .gitignore	2023-12-27 15:26:52 -06:00
Scott Lahteine	88e43c1ba3	🔖 Marlin 2.0.5.5	2023-07-20 14:10:45 -05:00
Scott Lahteine	49bab19bb5	🔨 PlatformIO 6 compatibility	2023-07-20 14:10:45 -05:00