Version 2.0.3

More files from errant merge
Merge remote-tracking branch 'upstream/bugfix-2.0.x' into version_203
2020-01-30 19:08:05 -06:00 · 2020-01-30 19:08:01 -06:00 · 2020-01-30 19:07:46 -06:00 · 2020-01-29 23:19:24 -06:00 · 2020-01-29 23:19:24 -06:00 · 2020-01-27 15:41:50 -06:00
1900 changed files with 42892 additions and 115410 deletions
--- a/.editorconfig
+++ b/.editorconfig
@@ -1,19 +0,0 @@
-# editorconfig.org
-root = true
-
-[{*.patch,syntax_test_*}]
-trim_trailing_whitespace = false
-
-[{*.c,*.cpp,*.h}]
-charset = utf-8
-
-[{*.c,*.cpp,*.h,Makefile}]
-trim_trailing_whitespace = true
-insert_final_newline = true
-end_of_line = lf
-indent_style = space
-indent_size = 2
-
-[{*.py,*.conf,*.sublime-project}]
-indent_style = tab
-indent_size = 4
--- 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/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
@@ -1,11 +1,31 @@
-# NO SUPPORT REQUESTS PLEASE
+<!--

-Do you want to ask a question? Are you looking for support? Please don't post here. Support Requests posted here will be automatically closed!
+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

-Instead use one of the following options:
+Do you want to ask a question? Are you looking for support? Please don't post here. Instead please use the Marlin Firmware forum at http://forums.reprap.org/list.php?415 or the Marlin Facebook Group https://www.facebook.com/groups/1049718498464482/ or the Marlin Discord Server https://discord.gg/n5NJ59y.

- 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.
+Before filing an issue be sure to test the 1.1 and/or 2.0 "bugfix" branches to see whether the issue is already addressed.

-Before filing an issue be sure to test the latest "bugfix" branch to see whether the issue is already addressed.
+-->
+
+### 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.
--- a/.github/labeler.yml
+++ b/.github/labeler.yml
@@ -0,0 +1,18 @@
+# Add '@domain/core' label to any change within the 'core' package
+enhancement:
+  - .github
+
+# Add 'test' label to any change to *.spec.js files within the source dir
+"C: Motion":
+  - src/module/motion.*
+  - src/module/planner.*
+  - src/module/stepper.*
+
+"C: G-code Parser":
+  - src/gcode/**
+
+"PR: Configurations":
+  - config/examples/**
+
+"T: 32-Bit & HAL":
+  - src/HAL/**
--- 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
@@ -14,10 +14,6 @@ We must be able to understand your proposed change from this description. If we

 <!-- What does this fix or improve? -->

-### Configurations
-
-<!-- Attach any Configuration.h, Configuration_adv.h, or platformio.ini files needed to compile/test your Pull Request. -->
-
 ### Related Issues

 <!-- Whether this fixes a bug or fulfills a feature request, please list any related Issues here. -->
--- a/.github/workflows/bump-date.yml
+++ b/.github/workflows/bump-date.yml
@@ -11,8 +11,6 @@ on:

 jobs:
  bump_date:
-    name: Bump Distribution Date
-    if: github.repository == 'MarlinFirmware/Marlin'

    runs-on: ubuntu-latest

@@ -26,6 +24,7 @@ jobs:
    - name: Bump Distribution Date
      run: |
        # Inline Bump Script
+        [[ "$GITHUB_REPOSITORY" == "MarlinFirmware/Marlin" ]] || exit 0
        DIST=$( date +"%Y-%m-%d" )
        eval "sed -E -i 's/(#define +STRING_DISTRIBUTION_DATE) .*$/\1 \"$DIST\"/g' Marlin/src/inc/Version.h" && \
        git config user.name "${GITHUB_ACTOR}" && \
--- a/.github/workflows/check-pr.yml
+++ b/.github/workflows/check-pr.yml
@@ -1,9 +1,9 @@
 #
 # check-pr.yml
-# Close PRs directed at release branches
+# Add a comment to the PR if it's directed to a release branch
 #

-name: PR Bad Target
+name: Check PR

 on:
  pull_request:
@@ -13,21 +13,19 @@ on:
    - 2.0.x

 jobs:
-  bad_target:
-    name: PR Bad Target
-    if: github.repository == 'MarlinFirmware/Marlin'
+  check_pr:

    runs-on: ubuntu-latest

    steps:
-    - uses: peter-evans/close-pull@v1
+    - name: Comment on PR
+      uses: unsplash/comment-on-pr@master
+      env:
+        GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
      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.
-
-          Please redo this PR starting with the `bugfix-2.0.x` branch and be careful to target `bugfix-2.0.x` when resubmitting the PR.
-
-          It may help to set your fork's default branch to `bugfix-2.0.x`.
-
-          See [this page](http://marlinfw.org/docs/development/getting_started_pull_requests.html) for full instructions.
+        msg: "<p>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. \
+              Please redo this PR starting with the `bugfix-2.0.x` branch and be careful to target `bugfix-2.0.x` when resubmitting the PR.</p> \
+              <p>It may help to set your fork's default branch to `bugfix-2.0.x`.</p> \
+              <p>See <a href='http://marlinfw.org/docs/development/getting_started_pull_requests.html' target='_blank'>this page</a> for full instructions.</p>"
--- a/.github/workflows/close-stale.yml
+++ b/.github/workflows/close-stale.yml
@@ -1,27 +0,0 @@
-#
-# close-stale.yml
-# Close open issues after a period of inactivity
-#
-
-name: Close Stale Issues
-
-on:
-  schedule:
-  - cron: "22 1 * * *"
-
-jobs:
-  stale:
-    name: Close Stale Issues
-    if: github.repository == 'MarlinFirmware/Marlin'
-
-    runs-on: ubuntu-latest
-
-    steps:
-    - uses: actions/stale@v3
-      with:
-        repo-token: ${{ secrets.GITHUB_TOKEN }}
-        stale-issue-message: 'This issue is stale because it has been open 30 days with no activity. Remove stale label / comment or this will be closed in 5 days.'
-        days-before-stale: 30
-        days-before-close: 5
-        stale-issue-label: 'stale-closing-soon'
-        exempt-issue-labels: 'T: Feature Request'
--- a/.github/workflows/label-pr.yml
+++ b/.github/workflows/label-pr.yml
@@ -0,0 +1,23 @@
+#
+# label-pr.yml
+# Automatically close the PR if it's directed to a release branch
+#
+
+name: Apply Labels
+
+on:
+  pull_request:
+    branches:
+    - bugfix-1.1.x
+    - bugfix-2.0.x
+    - dev-2.1.x
+
+jobs:
+  apply_labels:
+
+    runs-on: ubuntu-latest
+
+    steps:
+    - uses: actions/labeler@v2
+      with:
+        repo-token: "${{ secrets.GITHUB_TOKEN }}"
--- a/.github/workflows/lock-closed.yml
+++ b/.github/workflows/lock-closed.yml
@@ -1,32 +0,0 @@
-#
-# lock-closed.yml
-# Lock closed issues after a period of inactivity
-#
-
-name: Lock Closed Issues
-
-on:
-  schedule:
-    - cron: '0 1/13 * * *'
-
-jobs:
-  lock:
-    name: Lock Closed Issues
-    if: github.repository == 'MarlinFirmware/Marlin'
-
-    runs-on: ubuntu-latest
-
-    steps:
-    - uses: dessant/lock-threads@v2
-      with:
-        github-token: ${{ github.token }}
-        process-only: 'issues'
-        issue-lock-inactive-days: '60'
-        issue-exclude-created-before: ''
-        issue-exclude-labels: 'no-locking'
-        issue-lock-labels: ''
-        issue-lock-comment: >
-          This issue has been automatically locked since there
-          has not been any recent activity after it was closed.
-          Please open a new issue for related bugs.
-        issue-lock-reason: ''
--- a/.github/workflows/test-builds.yml
+++ b/.github/workflows/test-builds.yml
@@ -9,14 +9,7 @@ on:
  pull_request:
    branches:
    - bugfix-2.0.x
-    paths-ignore:
-    - config/**
-    - data/**
-    - docs/**
-    - '**/*.md'
-  push:
-    branches:
-    - bugfix-2.0.x
+    - dev-2.1.x
    paths-ignore:
    - config/**
    - data/**
@@ -25,8 +18,6 @@ on:

 jobs:
  test_builds:
-    name: Run All Tests
-    if: github.repository == 'MarlinFirmware/Marlin'

    runs-on: ubuntu-latest

@@ -38,47 +29,32 @@ jobs:
        - DUE
        - esp32
        - linux_native
-        - mega2560
+        - megaatmega2560
        - teensy31
        - teensy35
-        - SAMD51_grandcentral_m4

        # Extended AVR Environments

        - FYSETC_F6_13
-        - mega1280
+        - megaatmega1280
        - rambo
-        - sanguino1284p
-        - sanguino644p
+        - sanguino_atmega1284p
+        - sanguino_atmega644p

        # Extended STM32 Environments

-        - STM32F103RC_btt
-        - STM32F103RC_btt_USB
-        - STM32F103RE_btt
-        - STM32F103RE_btt_USB
+        - STM32F103RC_bigtree
+        - STM32F103RC_bigtree_USB
+        - STM32F103RE_bigtree
+        - STM32F103RE_bigtree_USB
        - STM32F103RC_fysetc
-        - STM32F103RC_meeb
        - jgaurora_a5s_a1
        - STM32F103VE_longer
        - STM32F407VE_black
-        - STM32F401VE_STEVAL
-        - BIGTREE_BTT002
        - BIGTREE_SKR_PRO
-        - BIGTREE_GTR_V1_0
        - mks_robin
-        - mks_robin_stm32
        - ARMED
        - FYSETC_S6
-        - STM32F070RB_malyan
-        - malyan_M300
-        - mks_robin_lite
-        - FLYF407ZG
-        - rumba32
-        - mks_robin_pro
-        - STM32F103RET6_creality
-        - LERDGEX
-        - mks_robin_nano35

        # Put lengthy tests last

@@ -91,10 +67,15 @@ jobs:
        #- STM32F7

        # Non-working environment tests
+
+        #- BIGTREE_BTT002
        #- at90usb1286_cdc
        #- at90usb1286_dfu
        #- STM32F103CB_malyan
+        #- mks_robin_lite
        #- mks_robin_mini
+        #- mks_robin_nano
+        #- SAMD51_grandcentral_m4

    steps:

@@ -106,7 +87,7 @@ 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
@@ -115,7 +96,8 @@ jobs:
    - name: Run ${{ matrix.test-platform }} Tests
      run: |
        # Inline tests script
+        [[ "$GITHUB_REPOSITORY" == "MarlinFirmware/Marlin" ]] || exit 0
        chmod +x buildroot/bin/*
-        chmod +x buildroot/tests/*
-        export PATH=./buildroot/bin/:./buildroot/tests/:${PATH}
+        chmod +x buildroot/share/tests/*
+        export PATH=./buildroot/bin/:./buildroot/share/tests/:${PATH}
        run_tests . ${{ matrix.test-platform }}
--- a/.github/workflows/unlock-reopened.yml
+++ b/.github/workflows/unlock-reopened.yml
@@ -1,22 +0,0 @@
-#
-# unlock-reopened.yml
-# Unlock an issue whenever it is re-opened
-#
-
-name: "Unlock reopened issue"
-
-on:
-  issues:
-    types: [reopened]
-
-jobs:
-  unlock:
-    name: Unlock Reopened
-    if: github.repository == 'MarlinFirmware/Marlin'
-
-    runs-on: ubuntu-latest
-
-    steps:
-    - uses: OSDKDev/unlock-issues@v1.1
-      with:
-        repo-token: "${{ secrets.GITHUB_TOKEN }}"
--- a/.gitignore
+++ b/.gitignore
@@ -1,6 +1,6 @@
 #
 # Marlin 3D Printer Firmware
-# Copyright (c) 2023 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
+# Copyright (c) 2019 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
 #
 # Based on Sprinter and grbl.
 # Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
@@ -16,26 +16,37 @@
 # 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/>.
 #

-# Generated files
+# Our automatic versioning scheme generates the following file
+# NEVER put it in the repository
 _Version.h
-bdf2u8g.exe
-genpages.exe
-marlin_config.json
-mczip.h
-language*.csv
-out-csv/
-out-language/
-*.gen
-*.sublime-workspace

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

-# Compiled C++ Object files
+#
+# Misc
+#
+*~
+*.orig
+*.rej
+*.bak
+*.idea
+*.s
+*.i
+*.ii
+*.swp
+tags
+
+#
+# C++
+#
+# Compiled Object files
 *.slo
 *.lo
 *.o
@@ -66,7 +77,11 @@ applet/
 *.out
 *.app

-# Compiled C Object files
+
+#
+# C
+#
+# Object files
 *.o
 *.ko
 *.obj
@@ -108,10 +123,30 @@ applet/
 .gcc-flags.json
 /lib/

-# Secure Credentials
-Configuration_Secure.h
+# Workaround for Deviot+platformio quirks
+Marlin/lib
+Marlin/platformio.ini
+Marlin/*/platformio.ini
+Marlin/*/*/platformio.ini
+Marlin/*/*/*/platformio.ini
+Marlin/*/*/*/*/platformio.ini
+Marlin/.travis.yml
+Marlin/*/.travis.yml
+Marlin/*/*/.travis.yml
+Marlin/*/*/*/.travis.yml
+Marlin/*/*/*/*/.travis.yml
+Marlin/.gitignore
+Marlin/*/.gitignore
+Marlin/*/*/.gitignore
+Marlin/*/*/*/.gitignore
+Marlin/*/*/*/*/.gitignore
+Marlin/readme.txt
+Marlin/*/readme.txt
+Marlin/*/*/readme.txt
+Marlin/*/*/*/readme.txt
+Marlin/*/*/*/*/readme.txt

-# Visual Studio
+#Visual Studio
 *.sln
 *.vcxproj
 *.vcxproj.user
@@ -122,49 +157,27 @@ __vm/
 .vs/
 vc-fileutils.settings

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

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

-# CLion
+#CLion
 cmake-build-*

-# Eclipse
+#Eclipse
 .project
 .cproject
 .pydevproject
 .settings
 .classpath

-# Python
+#Python
 __pycache__
-
-# IOLogger logs
-*_log.csv
-
-# Misc.
-*~
-*.orig
-*.rej
-*.bak
-*.idea
-*.i
-*.ii
-*.swp
-tags
-*.logs
-*.bak
--- a/.vscode/extensions.json
+++ b/.vscode/extensions.json
@@ -1,10 +0,0 @@
-{
-    // See http://go.microsoft.com/fwlink/?LinkId=827846
-    // for the documentation about the extensions.json format
-    "recommendations": [
-        "platformio.platformio-ide"
-    ],
-    "unwantedRecommendations": [
-        "ms-vscode.cpptools-extension-pack"
-    ]
-}
--- 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/Marlin/Configuration.h
+++ b/Marlin/Configuration.h
@@ -1,6 +1,6 @@
 /**
 * Marlin 3D Printer Firmware
- * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
+ * Copyright (c) 2019 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
 *
 * Based on Sprinter and grbl.
 * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
@@ -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
@@ -36,7 +36,7 @@
 * Advanced settings can be found in Configuration_adv.h
 *
 */
-#define CONFIGURATION_H_VERSION 020006
+#define CONFIGURATION_H_VERSION 020000

 //===========================================================================
 //============================= Getting Started =============================
@@ -45,13 +45,13 @@
 /**
 * Here are some standard links for getting your machine calibrated:
 *
- * https://reprap.org/wiki/Calibration
- * https://youtu.be/wAL9d7FgInk
+ * http://reprap.org/wiki/Calibration
+ * http://youtu.be/wAL9d7FgInk
 * http://calculator.josefprusa.cz
- * https://reprap.org/wiki/Triffid_Hunter%27s_Calibration_Guide
- * https://www.thingiverse.com/thing:5573
+ * http://reprap.org/wiki/Triffid_Hunter%27s_Calibration_Guide
+ * http://www.thingiverse.com/thing:5573
 * https://sites.google.com/site/repraplogphase/calibration-of-your-reprap
- * https://www.thingiverse.com/thing:298812
+ * http://www.thingiverse.com/thing:298812
 */

 //===========================================================================
@@ -99,7 +99,6 @@
 /**
 * Select the serial port on the board to use for communication with the host.
 * This allows the connection of wireless adapters (for instance) to non-default port pins.
- * Serial port -1 is the USB emulated serial port, if available.
 * Note: The first serial port (-1 or 0) will always be used by the Arduino bootloader.
 *
 * :[-1, 0, 1, 2, 3, 4, 5, 6, 7]
@@ -108,6 +107,9 @@

 /**
 * Select a secondary serial port on the board to use for communication with the host.
+ * This allows the connection of wireless adapters (for instance) to non-default port pins.
+ * Serial port -1 is the USB emulated serial port, if available.
+ *
 * :[-1, 0, 1, 2, 3, 4, 5, 6, 7]
 */
 //#define SERIAL_PORT_2 -1
@@ -135,28 +137,21 @@
 //#define CUSTOM_MACHINE_NAME "3D Printer"

 // Printer's unique ID, used by some programs to differentiate between machines.
-// Choose your own or use a service like https://www.uuidgenerator.net/version4
+// Choose your own or use a service like http://www.uuidgenerator.net/version4
 //#define MACHINE_UUID "00000000-0000-0000-0000-000000000000"

 // @section extruder

 // This defines the number of extruders
-// :[0, 1, 2, 3, 4, 5, 6, 7, 8]
+// :[1, 2, 3, 4, 5, 6, 7, 8]
 #define EXTRUDERS 1

 // Generally expected filament diameter (1.75, 2.85, 3.0, ...). Used for Volumetric, Filament Width Sensor, etc.
-#define DEFAULT_NOMINAL_FILAMENT_DIA 1.75
+#define DEFAULT_NOMINAL_FILAMENT_DIA 3.0

 // For Cyclops or any "multi-extruder" that shares a single nozzle.
 //#define SINGLENOZZLE

-// Save and restore temperature and fan speed on tool-change.
-// Set standby for the unselected tool with M104/106/109 T...
-#if ENABLED(SINGLENOZZLE)
-  //#define SINGLENOZZLE_STANDBY_TEMP
-  //#define SINGLENOZZLE_STANDBY_FAN
-#endif
-
 /**
 * Průša MK2 Single Nozzle Multi-Material Multiplexer, and variants.
 *
@@ -177,7 +172,7 @@
 #endif

 /**
- * Průša Multi-Material Unit v2
+ * Prusa Multi-Material Unit v2
 *
 * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
 * Requires EXTRUDERS = 5
@@ -235,8 +230,8 @@

  #elif ENABLED(MAGNETIC_PARKING_EXTRUDER)

-    #define MPE_FAST_SPEED      9000      // (mm/min) Speed for travel before last distance point
-    #define MPE_SLOW_SPEED      4500      // (mm/min) Speed for last distance travel to park and couple
+    #define MPE_FAST_SPEED      9000      // (mm/m) Speed for travel before last distance point
+    #define MPE_SLOW_SPEED      4500      // (mm/m) Speed for last distance travel to park and couple
    #define MPE_TRAVEL_DISTANCE   10      // (mm) Last distance point
    #define MPE_COMPENSATION       0      // Offset Compensation -1 , 0 , 1 (multiplier) only for coupling

@@ -284,8 +279,8 @@
    #if ENABLED(PRIME_BEFORE_REMOVE)
      #define SWITCHING_TOOLHEAD_PRIME_MM           20  // (mm)   Extruder prime length
      #define SWITCHING_TOOLHEAD_RETRACT_MM         10  // (mm)   Retract after priming length
-      #define SWITCHING_TOOLHEAD_PRIME_FEEDRATE    300  // (mm/min) Extruder prime feedrate
-      #define SWITCHING_TOOLHEAD_RETRACT_FEEDRATE 2400  // (mm/min) Extruder retract feedrate
+      #define SWITCHING_TOOLHEAD_PRIME_FEEDRATE    300  // (mm/m) Extruder prime feedrate
+      #define SWITCHING_TOOLHEAD_RETRACT_FEEDRATE 2400  // (mm/m) Extruder retract feedrate
    #endif
  #elif ENABLED(ELECTROMAGNETIC_SWITCHING_TOOLHEAD)
    #define SWITCHING_TOOLHEAD_Z_HOP          2         // (mm) Z raise for switching
@@ -330,10 +325,10 @@
 //#define PSU_NAME "Power Supply"

 #if ENABLED(PSU_CONTROL)
-  #define PSU_ACTIVE_STATE LOW      // Set 'LOW' for ATX, 'HIGH' for X-Box
+  #define PSU_ACTIVE_HIGH false     // Set 'false' for ATX, 'true' for X-Box

  //#define PSU_DEFAULT_OFF         // Keep power off until enabled directly with M80
-  //#define PSU_POWERUP_DELAY 250   // (ms) Delay for the PSU to warm up to full power
+  //#define PSU_POWERUP_DELAY 100   // (ms) Delay for the PSU to warm up to full power

  //#define AUTO_POWER_CONTROL      // Enable automatic control of the PS_ON pin
  #if ENABLED(AUTO_POWER_CONTROL)
@@ -368,12 +363,10 @@
 *   331 : (3.3V scaled thermistor 1 table for MEGA)
 *   332 : (3.3V scaled thermistor 1 table for DUE)
 *     2 : 200k thermistor - ATC Semitec 204GT-2 (4.7k pullup)
- *   202 : 200k thermistor - Copymaster 3D
 *     3 : Mendel-parts thermistor (4.7k pullup)
 *     4 : 10k thermistor !! do not use it for a hotend. It gives bad resolution at high temp. !!
- *     5 : 100K thermistor - ATC Semitec 104GT-2/104NT-4-R025H42G (Used in ParCan, J-Head, and E3D) (4.7k pullup)
+ *     5 : 100K thermistor - ATC Semitec 104GT-2/104NT-4-R025H42G (Used in ParCan & J-Head) (4.7k pullup)
 *   501 : 100K Zonestar (Tronxy X3A) Thermistor
- *   502 : 100K Zonestar Thermistor used by hot bed in Zonestar Průša P802M
 *   512 : 100k RPW-Ultra hotend thermistor (4.7k pullup)
 *     6 : 100k EPCOS - Not as accurate as table 1 (created using a fluke thermocouple) (4.7k pullup)
 *     7 : 100k Honeywell thermistor 135-104LAG-J01 (4.7k pullup)
@@ -381,15 +374,13 @@
 *     8 : 100k 0603 SMD Vishay NTCS0603E3104FXT (4.7k pullup)
 *     9 : 100k GE Sensing AL03006-58.2K-97-G1 (4.7k pullup)
 *    10 : 100k RS thermistor 198-961 (4.7k pullup)
- *    11 : 100k beta 3950 1% thermistor (Used in Keenovo AC silicone mats and most Wanhao i3 machines) (4.7k pullup)
+ *    11 : 100k beta 3950 1% thermistor (4.7k pullup)
 *    12 : 100k 0603 SMD Vishay NTCS0603E3104FXT (4.7k pullup) (calibrated for Makibox hot bed)
 *    13 : 100k Hisens 3950  1% up to 300°C for hotend "Simple ONE " & "Hotend "All In ONE"
 *    15 : 100k thermistor calibration for JGAurora A5 hotend
 *    18 : ATC Semitec 204GT-2 (4.7k pullup) Dagoma.Fr - MKS_Base_DKU001327
 *    20 : Pt100 with circuit in the Ultimainboard V2.x with 5v excitation (AVR)
 *    21 : Pt100 with circuit in the Ultimainboard V2.x with 3.3v excitation (STM32 \ LPC176x....)
- *    22 : 100k (hotend) with 4.7k pullup to 3.3V and 220R to analog input (as in GTM32 Pro vB)
- *    23 : 100k (bed) with 4.7k pullup to 3.3v and 220R to analog input (as in GTM32 Pro vB)
 *   201 : Pt100 with circuit in Overlord, similar to Ultimainboard V2.x
 *    60 : 100k Maker's Tool Works Kapton Bed Thermistor beta=3950
 *    61 : 100k Formbot / Vivedino 3950 350C thermistor 4.7k pullup
@@ -405,7 +396,7 @@
 *    52 : 200k thermistor - ATC Semitec 204GT-2 (1k pullup)
 *    55 : 100k thermistor - ATC Semitec 104GT-2 (Used in ParCan & J-Head) (1k pullup)
 *
- *  1047 : Pt1000 with 4k7 pullup (E3D)
+ *  1047 : Pt1000 with 4k7 pullup
 *  1010 : Pt1000 with 1k pullup (non standard)
 *   147 : Pt100 with 4k7 pullup
 *   110 : Pt100 with 1k pullup (non standard)
@@ -473,19 +464,23 @@
 //===========================================================================
 //============================= PID Settings ================================
 //===========================================================================
-// PID Tuning Guide here: https://reprap.org/wiki/PID_Tuning
+// PID Tuning Guide here: http://reprap.org/wiki/PID_Tuning

 // Comment the following line to disable PID and enable bang-bang.
 #define PIDTEMP
 #define BANG_MAX 255     // Limits current to nozzle while in bang-bang mode; 255=full current
 #define PID_MAX BANG_MAX // Limits current to nozzle while PID is active (see PID_FUNCTIONAL_RANGE below); 255=full current
 #define PID_K1 0.95      // Smoothing factor within any PID loop
-
 #if ENABLED(PIDTEMP)
  //#define PID_EDIT_MENU         // Add PID editing to the "Advanced Settings" menu. (~700 bytes of PROGMEM)
  //#define PID_AUTOTUNE_MENU     // Add PID auto-tuning to the "Advanced Settings" menu. (~250 bytes of PROGMEM)
+  //#define PID_DEBUG             // Sends debug data to the serial port.
+  //#define PID_OPENLOOP 1        // Puts PID in open loop. M104/M140 sets the output power from 0 to PID_MAX
+  //#define SLOW_PWM_HEATERS      // PWM with very low frequency (roughly 0.125Hz=8s) and minimum state time of approximately 1s useful for heaters driven by a relay
  //#define PID_PARAMS_PER_HOTEND // Uses separate PID parameters for each extruder (useful for mismatched extruders)
                                  // Set/get with gcode: M301 E[extruder number, 0-2]
+  #define PID_FUNCTIONAL_RANGE 10 // If the temperature difference between the target temperature and the actual temperature
+                                  // is more than PID_FUNCTIONAL_RANGE then the PID will be shut off and the heater will be set to min/max.

  // If you are using a pre-configured hotend then you can use one of the value sets by uncommenting it

@@ -554,14 +549,6 @@
  // FIND YOUR OWN: "M303 E-1 C8 S90" to run autotune on the bed at 90 degreesC for 8 cycles.
 #endif // PIDTEMPBED

-#if EITHER(PIDTEMP, PIDTEMPBED)
-  //#define PID_DEBUG             // Sends debug data to the serial port. Use 'M303 D' to toggle activation.
-  //#define PID_OPENLOOP          // Puts PID in open loop. M104/M140 sets the output power from 0 to PID_MAX
-  //#define SLOW_PWM_HEATERS      // PWM with very low frequency (roughly 0.125Hz=8s) and minimum state time of approximately 1s useful for heaters driven by a relay
-  #define PID_FUNCTIONAL_RANGE 10 // If the temperature difference between the target temperature and the actual temperature
-                                  // is more than PID_FUNCTIONAL_RANGE then the PID will be shut off and the heater will be set to min/max.
-#endif
-
 // @section extruder

 /**
@@ -711,7 +698,7 @@
 * Enable if your probe or endstops falsely trigger due to noise.
 *
 * - Higher values may affect repeatability or accuracy of some bed probes.
- * - To fix noise install a 100nF ceramic capacitor in parallel with the switch.
+ * - To fix noise install a 100nF ceramic capacitor inline with the switch.
 * - This feature is not required for common micro-switches mounted on PCBs
 *   based on the Makerbot design, which already have the 100nF capacitor.
 *
@@ -719,9 +706,6 @@
 */
 //#define ENDSTOP_NOISE_THRESHOLD 2

-// Check for stuck or disconnected endstops during homing moves.
-//#define DETECT_BROKEN_ENDSTOP
-
 //=============================================================================
 //============================== Movement Settings ============================
 //=============================================================================
@@ -800,8 +784,6 @@
  #define DEFAULT_YJERK 10.0
  #define DEFAULT_ZJERK  0.3

-  //#define TRAVEL_EXTRA_XYJERK 0.0     // Additional jerk allowance for all travel moves
-
  //#define LIMITED_JERK_EDITING        // Limit edit via M205 or LCD to DEFAULT_aJERK * 2
  #if ENABLED(LIMITED_JERK_EDITING)
    #define MAX_JERK_EDIT_VALUES { 20, 20, 0.6, 10 } // ...or, set your own edit limits
@@ -815,12 +797,10 @@
 *
 * See:
 *   https://reprap.org/forum/read.php?1,739819
- *   https://blog.kyneticcnc.com/2018/10/computing-junction-deviation-for-marlin.html
+ *   http://blog.kyneticcnc.com/2018/10/computing-junction-deviation-for-marlin.html
 */
 #if DISABLED(CLASSIC_JERK)
  #define JUNCTION_DEVIATION_MM 0.013 // (mm) Distance from real junction edge
-  #define JD_HANDLE_SMALL_SEGMENTS    // Use curvature estimation instead of just the junction angle
-                                      // for small segments (< 1mm) with large junction angles (> 135°).
 #endif

 /**
@@ -839,19 +819,16 @@
 // @section probes

 //
-// See https://marlinfw.org/docs/configuration/probes.html
+// See http://marlinfw.org/docs/configuration/probes.html
 //

 /**
- * Enable this option for a probe connected to the Z-MIN pin.
- * The probe replaces the Z-MIN endstop and is used for Z homing.
- * (Automatically enables USE_PROBE_FOR_Z_HOMING.)
+ * Z_MIN_PROBE_USES_Z_MIN_ENDSTOP_PIN
+ *
+ * Enable this option for a probe connected to the Z Min endstop pin.
 */
 #define Z_MIN_PROBE_USES_Z_MIN_ENDSTOP_PIN

-// Force the use of the probe for Z-axis homing
-//#define USE_PROBE_FOR_Z_HOMING
-
 /**
 * Z_MIN_PROBE_PIN
 *
@@ -908,11 +885,6 @@
 */
 //#define BLTOUCH

-/**
- * Pressure sensor with a BLTouch-like interface
- */
-//#define CREALITY_TOUCH
-
 /**
 * Touch-MI Probe by hotends.fr
 *
@@ -951,61 +923,43 @@
  #define SMART_EFFECTOR_MOD_PIN  -1  // Connect a GPIO pin to the Smart Effector MOD pin
 #endif

-/**
- * Use StallGuard2 to probe the bed with the nozzle.
- * Requires stallGuard-capable Trinamic stepper drivers.
- * CAUTION: This can damage machines with Z lead screws.
- *          Take extreme care when setting up this feature.
- */
-//#define SENSORLESS_PROBING
-
 //
 // For Z_PROBE_ALLEN_KEY see the Delta example configurations.
 //

 /**
- * Nozzle-to-Probe offsets { X, Y, Z }
+ * Z Probe to nozzle (X,Y) offset, relative to (0, 0).
 *
- * - Use a caliper or ruler to measure the distance from the tip of
- *   the Nozzle to the center-point of the Probe in the X and Y axes.
- * - For the Z offset use your best known value and adjust at runtime.
- * - Probe Offsets can be tuned at runtime with 'M851', LCD menus, babystepping, etc.
+ * In the following example the X and Y offsets are both positive:
 *
- * Assuming the typical work area orientation:
- *  - Probe to RIGHT of the Nozzle has a Positive X offset
- *  - Probe to LEFT  of the Nozzle has a Negative X offset
- *  - Probe in BACK  of the Nozzle has a Positive Y offset
- *  - Probe in FRONT of the Nozzle has a Negative Y offset
- *
- * Some examples:
- *   #define NOZZLE_TO_PROBE_OFFSET { 10, 10, -1 }   // Example "1"
- *   #define NOZZLE_TO_PROBE_OFFSET {-10,  5, -1 }   // Example "2"
- *   #define NOZZLE_TO_PROBE_OFFSET {  5, -5, -1 }   // Example "3"
- *   #define NOZZLE_TO_PROBE_OFFSET {-15,-10, -1 }   // Example "4"
+ *   #define NOZZLE_TO_PROBE_OFFSET { 10, 10, 0 }
 *
 *     +-- BACK ---+
- *     |    [+]    |
- *   L |        1  | R <-- Example "1" (right+,  back+)
- *   E |  2        | I <-- Example "2" ( left-,  back+)
- *   F |[-]  N  [+]| G <-- Nozzle
- *   T |       3   | H <-- Example "3" (right+, front-)
- *     | 4         | T <-- Example "4" ( left-, front-)
- *     |    [-]    |
+ *     |           |
+ *   L |    (+) P  | R <-- probe (20,20)
+ *   E |           | I
+ *   F | (-) N (+) | G <-- nozzle (10,10)
+ *   T |           | H
+ *     |    (-)    | T
+ *     |           |
 *     O-- FRONT --+
+ *   (0,0)
+ *
+ * Specify a Probe position as { X, Y, Z }
 */
 #define NOZZLE_TO_PROBE_OFFSET { 10, 10, 0 }

 // Most probes should stay away from the edges of the bed, but
 // with NOZZLE_AS_PROBE this can be negative for a wider probing area.
-#define PROBING_MARGIN 10
+#define MIN_PROBE_EDGE 10

-// X and Y axis travel speed (mm/min) between probes
-#define XY_PROBE_SPEED (133*60)
+// X and Y axis travel speed (mm/m) between probes
+#define XY_PROBE_SPEED 8000

-// Feedrate (mm/min) for the first approach when double-probing (MULTIPLE_PROBING == 2)
+// Feedrate (mm/m) for the first approach when double-probing (MULTIPLE_PROBING == 2)
 #define Z_PROBE_SPEED_FAST HOMING_FEEDRATE_Z

-// Feedrate (mm/min) for the "accurate" probe of each point
+// Feedrate (mm/m) for the "accurate" probe of each point
 #define Z_PROBE_SPEED_SLOW (Z_PROBE_SPEED_FAST / 2)

 /**
@@ -1076,18 +1030,18 @@
 #define Z_ENABLE_ON 0
 #define E_ENABLE_ON 0 // For all extruders

-// Disable axis steppers immediately when they're not being stepped.
+// Disables axis stepper immediately when it's not being used.
 // WARNING: When motors turn off there is a chance of losing position accuracy!
 #define DISABLE_X false
 #define DISABLE_Y false
 #define DISABLE_Z false

-// Turn off the display blinking that warns about possible accuracy reduction
+// Warn on display about possibly reduced accuracy
 //#define DISABLE_REDUCED_ACCURACY_WARNING

 // @section extruder

-#define DISABLE_E false             // Disable the extruder when not stepping
+#define DISABLE_E false             // For all extruders
 #define DISABLE_INACTIVE_EXTRUDER   // Keep only the active extruder enabled

 // @section machine
@@ -1111,14 +1065,12 @@

 // @section homing

-//#define NO_MOTION_BEFORE_HOMING // Inhibit movement until all axes have been homed
+//#define NO_MOTION_BEFORE_HOMING  // Inhibit movement until all axes have been homed

-//#define UNKNOWN_Z_NO_RAISE      // Don't raise Z (lower the bed) if Z is "unknown." For beds that fall when Z is powered off.
+//#define UNKNOWN_Z_NO_RAISE // Don't raise Z (lower the bed) if Z is "unknown." For beds that fall when Z is powered off.

-//#define Z_HOMING_HEIGHT  4      // (mm) Minimal Z height before homing (G28) for Z clearance above the bed, clamps, ...
-                                  // Be sure to have this much clearance over your Z_MAX_POS to prevent grinding.
-
-//#define Z_AFTER_HOMING  10      // (mm) Height to move to after homing Z
+//#define Z_HOMING_HEIGHT 4  // (mm) Minimal Z height before homing (G28) for Z clearance above the bed, clamps, ...
+                             // Be sure you have this distance over your Z_MAX_POS in case.

 // Direction of endstops when homing; 1=MAX, -1=MIN
 // :[-1,1]
@@ -1175,14 +1127,14 @@
 *
 * RAMPS-based boards use SERVO3_PIN for the first runout sensor.
 * For other boards you may need to define FIL_RUNOUT_PIN, FIL_RUNOUT2_PIN, etc.
+ * By default the firmware assumes HIGH=FILAMENT PRESENT.
 */
 //#define FILAMENT_RUNOUT_SENSOR
 #if ENABLED(FILAMENT_RUNOUT_SENSOR)
-  #define FIL_RUNOUT_ENABLED_DEFAULT true // Enable the sensor on startup. Override with M412 followed by M500.
-  #define NUM_RUNOUT_SENSORS   1          // Number of sensors, up to one per extruder. Define a FIL_RUNOUT#_PIN for each.
-  #define FIL_RUNOUT_STATE     LOW        // Pin state indicating that filament is NOT present.
-  #define FIL_RUNOUT_PULLUP               // Use internal pullup for filament runout pins.
-  //#define FIL_RUNOUT_PULLDOWN           // Use internal pulldown for filament runout pins.
+  #define NUM_RUNOUT_SENSORS   1     // Number of sensors, up to one per extruder. Define a FIL_RUNOUT#_PIN for each.
+  #define FIL_RUNOUT_INVERTING false // Set to true to invert the logic of the sensor.
+  #define FIL_RUNOUT_PULLUP          // Use internal pullup for filament runout pins.
+  //#define FIL_RUNOUT_PULLDOWN      // Use internal pulldown for filament runout pins.

  // Set one or more commands to execute on filament runout.
  // (After 'M412 H' Marlin will ask the host to handle the process.)
@@ -1280,7 +1232,6 @@
    #define MESH_TEST_HOTEND_TEMP  205    // (°C) Default nozzle temperature for the G26 Mesh Validation Tool.
    #define MESH_TEST_BED_TEMP      60    // (°C) Default bed temperature for the G26 Mesh Validation Tool.
    #define G26_XY_FEEDRATE         20    // (mm/s) Feedrate for XY Moves for the G26 Mesh Validation Tool.
-    #define G26_RETRACT_MULTIPLIER   1.0  // G26 Q (retraction) used by default between mesh test elements.
  #endif

 #endif
@@ -1360,10 +1311,10 @@
 //#define LEVEL_BED_CORNERS

 #if ENABLED(LEVEL_BED_CORNERS)
-  #define LEVEL_CORNERS_INSET_LFRB { 30, 30, 30, 30 } // (mm) Left, Front, Right, Back insets
-  #define LEVEL_CORNERS_HEIGHT      0.0   // (mm) Z height of nozzle at leveling points
-  #define LEVEL_CORNERS_Z_HOP       4.0   // (mm) Z height of nozzle between leveling points
-  //#define LEVEL_CENTER_TOO              // Move to the center after the last corner
+  #define LEVEL_CORNERS_INSET 30    // (mm) An inset for corner leveling
+  #define LEVEL_CORNERS_Z_HOP  4.0  // (mm) Move nozzle up before moving between corners
+  #define LEVEL_CORNERS_HEIGHT 0.0  // (mm) Z height of nozzle at leveling points
+  //#define LEVEL_CENTER_TOO        // Move to the center after the last corner
 #endif

 /**
@@ -1372,6 +1323,7 @@
 */
 //#define Z_PROBE_END_SCRIPT "G1 Z10 F12000\nG1 X15 Y330\nG1 Z0.5\nG1 Z10"

+
 // @section homing

 // The center of the bed is at (X=0, Y=0)
@@ -1389,17 +1341,17 @@
 //
 // - Allow Z homing only after X and Y homing AND stepper drivers still enabled.
 // - If stepper drivers time out, it will need X and Y homing again before Z homing.
-// - Move the Z probe (or nozzle) to a defined XY point before Z Homing.
+// - Move the Z probe (or nozzle) to a defined XY point before Z Homing when homing all axes (G28).
 // - Prevent Z homing when the Z probe is outside bed area.
 //
 //#define Z_SAFE_HOMING

 #if ENABLED(Z_SAFE_HOMING)
-  #define Z_SAFE_HOMING_X_POINT X_CENTER  // X point for Z homing
-  #define Z_SAFE_HOMING_Y_POINT Y_CENTER  // Y point for Z homing
+  #define Z_SAFE_HOMING_X_POINT ((X_BED_SIZE) / 2)    // X point for Z homing when homing all axes (G28).
+  #define Z_SAFE_HOMING_Y_POINT ((Y_BED_SIZE) / 2)    // Y point for Z homing when homing all axes (G28).
 #endif

-// Homing speeds (mm/min)
+// Homing speeds (mm/m)
 #define HOMING_FEEDRATE_XY (50*60)
 #define HOMING_FEEDRATE_Z  (4*60)

@@ -1481,7 +1433,6 @@
 //#define EEPROM_SETTINGS     // Persistent storage with M500 and M501
 //#define DISABLE_M503        // Saves ~2700 bytes of PROGMEM. Disable for release!
 #define EEPROM_CHITCHAT       // Give feedback on EEPROM commands. Disable to save PROGMEM.
-#define EEPROM_BOOT_SILENT    // Keep M503 quiet and only give errors during first load
 #if ENABLED(EEPROM_SETTINGS)
  //#define EEPROM_AUTO_INIT  // Init EEPROM automatically on any errors.
 #endif
@@ -1535,11 +1486,8 @@
 #if ENABLED(NOZZLE_PARK_FEATURE)
  // Specify a park position as { X, Y, Z_raise }
  #define NOZZLE_PARK_POINT { (X_MIN_POS + 10), (Y_MAX_POS - 10), 20 }
-  //#define NOZZLE_PARK_X_ONLY          // X move only is required to park
-  //#define NOZZLE_PARK_Y_ONLY          // Y move only is required to park
-  #define NOZZLE_PARK_Z_RAISE_MIN   2   // (mm) Always raise Z by at least this distance
  #define NOZZLE_PARK_XY_FEEDRATE 100   // (mm/s) X and Y axes feedrate (also used for delta Z axis)
-  #define NOZZLE_PARK_Z_FEEDRATE    5   // (mm/s) Z axis feedrate (not used for delta printers)
+  #define NOZZLE_PARK_Z_FEEDRATE 5      // (mm/s) Z axis feedrate (not used for delta printers)
 #endif

 /**
@@ -1604,15 +1552,8 @@
  // Move the nozzle to the initial position after cleaning
  #define NOZZLE_CLEAN_GOBACK

-  // For a purge/clean station that's always at the gantry height (thus no Z move)
+  // Enable for a purge/clean station that's always at the gantry height (thus no Z move)
  //#define NOZZLE_CLEAN_NO_Z
-
-  // For a purge/clean station mounted on the X axis
-  //#define NOZZLE_CLEAN_NO_Y
-
-  // Explicit wipe G-code script applies to a G12 with no arguments.
-  //#define WIPE_SEQUENCE_COMMANDS "G1 X-17 Y25 Z10 F4000\nG1 Z1\nM114\nG1 X-17 Y25\nG1 X-17 Y95\nG1 X-17 Y25\nG1 X-17 Y95\nG1 X-17 Y25\nG1 X-17 Y95\nG1 X-17 Y25\nG1 X-17 Y95\nG1 X-17 Y25\nG1 X-17 Y95\nG1 X-17 Y25\nG1 X-17 Y95\nG1 Z15\nM400\nG0 X-10.0 Y-9.0"
-
 #endif

 /**
@@ -1646,37 +1587,6 @@
 */
 //#define PRINTCOUNTER

-/**
- * Password
- *
- * Set a numerical password for the printer which can be requested:
- *
- *  - When the printer boots up
- *  - Upon opening the 'Print from Media' Menu
- *  - When SD printing is completed or aborted
- *
- * The following G-codes can be used:
- *
- *  M510 - Lock Printer. Blocks all commands except M511.
- *  M511 - Unlock Printer.
- *  M512 - Set, Change and Remove Password.
- *
- * If you forget the password and get locked out you'll need to re-flash
- * the firmware with the feature disabled, reset EEPROM, and (optionally)
- * re-flash the firmware again with this feature enabled.
- */
-//#define PASSWORD_FEATURE
-#if ENABLED(PASSWORD_FEATURE)
-  #define PASSWORD_LENGTH 4                 // (#) Number of digits (1-9). 3 or 4 is recommended
-  #define PASSWORD_ON_STARTUP
-  #define PASSWORD_UNLOCK_GCODE             // Unlock with the M511 P<password> command. Disable to prevent brute-force attack.
-  #define PASSWORD_CHANGE_GCODE             // Change the password with M512 P<old> S<new>.
-  //#define PASSWORD_ON_SD_PRINT_MENU       // This does not prevent gcodes from running
-  //#define PASSWORD_AFTER_SD_PRINT_END
-  //#define PASSWORD_AFTER_SD_PRINT_ABORT
-  //#include "Configuration_Secure.h"       // External file with PASSWORD_DEFAULT_VALUE
-#endif
-
 //=============================================================================
 //============================= LCD and SD support ============================
 //=============================================================================
@@ -1688,10 +1598,10 @@
 *
 * Select the language to display on the LCD. These languages are available:
 *
- *   en, an, bg, ca, cz, da, de, el, el_gr, es, eu, fi, fr, gl, hr, hu, it,
- *   jp_kana, ko_KR, nl, pl, pt, pt_br, ro, ru, sk, tr, uk, vi, zh_CN, zh_TW, test
+ *   en, an, bg, ca, cz, da, de, el, el_gr, es, eu, fi, fr, gl, hr, it, jp_kana,
+ *   ko_KR, nl, pl, pt, pt_br, ru, sk, tr, uk, vi, zh_CN, zh_TW, test
 *
- * :{ 'en':'English', 'an':'Aragonese', 'bg':'Bulgarian', 'ca':'Catalan', 'cz':'Czech', 'da':'Danish', 'de':'German', 'el':'Greek', 'el_gr':'Greek (Greece)', 'es':'Spanish', 'eu':'Basque-Euskera', 'fi':'Finnish', 'fr':'French', 'gl':'Galician', 'hr':'Croatian', 'hu':'Hungarian', 'it':'Italian', 'jp_kana':'Japanese', 'ko_KR':'Korean (South Korea)', 'nl':'Dutch', 'pl':'Polish', 'pt':'Portuguese', 'pt_br':'Portuguese (Brazilian)', 'ro':'Romanian', 'ru':'Russian', 'sk':'Slovak', 'tr':'Turkish', 'uk':'Ukrainian', 'vi':'Vietnamese', 'zh_CN':'Chinese (Simplified)', 'zh_TW':'Chinese (Traditional)', 'test':'TEST' }
+ * :{ 'en':'English', 'an':'Aragonese', 'bg':'Bulgarian', 'ca':'Catalan', 'cz':'Czech', 'da':'Danish', 'de':'German', 'el':'Greek', 'el_gr':'Greek (Greece)', 'es':'Spanish', 'eu':'Basque-Euskera', 'fi':'Finnish', 'fr':'French', 'gl':'Galician', 'hr':'Croatian', 'it':'Italian', 'jp_kana':'Japanese', 'ko_KR':'Korean (South Korea)', 'nl':'Dutch', 'pl':'Polish', 'pt':'Portuguese', 'pt_br':'Portuguese (Brazilian)', 'ru':'Russian', 'sk':'Slovak', 'tr':'Turkish', 'uk':'Ukrainian', 'vi':'Vietnamese', 'zh_CN':'Chinese (Simplified)', 'zh_TW':'Chinese (Traditional)', 'test':'TEST' }
 */
 #define LCD_LANGUAGE en

@@ -1713,16 +1623,16 @@
 *  - Click the controller to view the LCD menu
 *  - The LCD will display Japanese, Western, or Cyrillic text
 *
- * See https://marlinfw.org/docs/development/lcd_language.html
+ * See http://marlinfw.org/docs/development/lcd_language.html
 *
 * :['JAPANESE', 'WESTERN', 'CYRILLIC']
 */
 #define DISPLAY_CHARSET_HD44780 JAPANESE

 /**
- * Info Screen Style (0:Classic, 1:Průša)
+ * Info Screen Style (0:Classic, 1:Prusa)
 *
- * :[0:'Classic', 1:'Průša']
+ * :[0:'Classic', 1:'Prusa']
 */
 #define LCD_INFO_SCREEN_STYLE 0

@@ -1840,7 +1750,7 @@

 //
 // RepRapDiscount Smart Controller.
-// https://reprap.org/wiki/RepRapDiscount_Smart_Controller
+// http://reprap.org/wiki/RepRapDiscount_Smart_Controller
 //
 // Note: Usually sold with a white PCB.
 //
@@ -1864,13 +1774,13 @@

 //
 // PanelOne from T3P3 (via RAMPS 1.4 AUX2/AUX3)
-// https://reprap.org/wiki/PanelOne
+// http://reprap.org/wiki/PanelOne
 //
 //#define PANEL_ONE

 //
 // GADGETS3D G3D LCD/SD Controller
-// https://reprap.org/wiki/RAMPS_1.3/1.4_GADGETS3D_Shield_with_Panel
+// http://reprap.org/wiki/RAMPS_1.3/1.4_GADGETS3D_Shield_with_Panel
 //
 // Note: Usually sold with a blue PCB.
 //
@@ -1957,7 +1867,7 @@

 //
 // 2-wire Non-latching LCD SR from https://goo.gl/aJJ4sH
-// LCD configuration: https://reprap.org/wiki/SAV_3D_LCD
+// LCD configuration: http://reprap.org/wiki/SAV_3D_LCD
 //
 //#define SAV_3DLCD

@@ -1979,12 +1889,10 @@
 // IMPORTANT: The U8glib library is required for Graphical Display!
 //            https://github.com/olikraus/U8glib_Arduino
 //
-// NOTE: If the LCD is unresponsive you may need to reverse the plugs.
-//

 //
 // RepRapDiscount FULL GRAPHIC Smart Controller
-// https://reprap.org/wiki/RepRapDiscount_Full_Graphic_Smart_Controller
+// http://reprap.org/wiki/RepRapDiscount_Full_Graphic_Smart_Controller
 //
 //#define REPRAP_DISCOUNT_FULL_GRAPHIC_SMART_CONTROLLER

@@ -1997,20 +1905,20 @@
 //
 // Activate one of these if you have a Panucatt Devices
 // Viki 2.0 or mini Viki with Graphic LCD
-// https://www.panucatt.com
+// http://panucatt.com
 //
 //#define VIKI2
 //#define miniVIKI

 //
 // MakerLab Mini Panel with graphic
-// controller and SD support - https://reprap.org/wiki/Mini_panel
+// controller and SD support - http://reprap.org/wiki/Mini_panel
 //
 //#define MINIPANEL

 //
 // MaKr3d Makr-Panel with graphic controller and SD support.
-// https://reprap.org/wiki/MaKr3d_MaKrPanel
+// http://reprap.org/wiki/MaKr3d_MaKrPanel
 //
 //#define MAKRPANEL

@@ -2049,12 +1957,6 @@
 //
 //#define MKS_MINI_12864

-//
-// MKS LCD12864A/B with graphic controller and SD support. Follows MKS_MINI_12864 pinout.
-// https://www.aliexpress.com/item/33018110072.html
-//
-//#define MKS_LCD12864
-
 //
 // FYSETC variant of the MINI12864 graphic controller with SD support
 // https://wiki.fysetc.com/Mini12864_Panel/
@@ -2062,7 +1964,7 @@
 //#define FYSETC_MINI_12864_X_X    // Type C/D/E/F. No tunable RGB Backlight by default
 //#define FYSETC_MINI_12864_1_2    // Type C/D/E/F. Simple RGB Backlight (always on)
 //#define FYSETC_MINI_12864_2_0    // Type A/B. Discreet RGB Backlight
-//#define FYSETC_MINI_12864_2_1    // Type A/B. NeoPixel RGB Backlight
+//#define FYSETC_MINI_12864_2_1    // Type A/B. Neopixel RGB Backlight
 //#define FYSETC_GENERIC_12864_1_1 // Larger display with basic ON/OFF backlight.

 //
@@ -2096,7 +1998,7 @@

 //
 // Silvergate GLCD controller
-// https://github.com/android444/Silvergate
+// http://github.com/android444/Silvergate
 //
 //#define SILVER_GATE_GLCD_CONTROLLER

@@ -2124,21 +2026,14 @@
 //#define OLED_PANEL_TINYBOY2

 //
-// MKS OLED 1.3" 128×64 FULL GRAPHICS CONTROLLER
-// https://reprap.org/wiki/MKS_12864OLED
+// MKS OLED 1.3" 128 × 64 FULL GRAPHICS CONTROLLER
+// http://reprap.org/wiki/MKS_12864OLED
 //
 // Tiny, but very sharp OLED display
 //
 //#define MKS_12864OLED          // Uses the SH1106 controller (default)
 //#define MKS_12864OLED_SSD1306  // Uses the SSD1306 controller

-//
-// Zonestar OLED 128×64 FULL GRAPHICS CONTROLLER
-//
-//#define ZONESTAR_12864LCD           // Graphical (DOGM) with ST7920 controller
-//#define ZONESTAR_12864OLED          // 1.3" OLED with SH1106 controller (default)
-//#define ZONESTAR_12864OLED_SSD1306  // 0.96" OLED with SSD1306 controller
-
 //
 // Einstart S OLED SSD1306
 //
@@ -2149,26 +2044,19 @@
 //
 //#define OVERLORD_OLED

-//
-// FYSETC OLED 2.42" 128×64 FULL GRAPHICS CONTROLLER with WS2812 RGB
-// Where to find : https://www.aliexpress.com/item/4000345255731.html
-//#define FYSETC_242_OLED_12864   // Uses the SSD1309 controller
-
 //=============================================================================
 //========================== Extensible UI Displays ===========================
 //=============================================================================

 //
 // DGUS Touch Display with DWIN OS. (Choose one.)
-// ORIGIN : https://www.aliexpress.com/item/32993409517.html
-// FYSETC : https://www.aliexpress.com/item/32961471929.html
 //
 //#define DGUS_LCD_UI_ORIGIN
 //#define DGUS_LCD_UI_FYSETC
 //#define DGUS_LCD_UI_HIPRECY

 //
-// Touch-screen LCD for Malyan M200/M300 printers
+// Touch-screen LCD for Malyan M200 printers
 //
 //#define MALYAN_LCD

@@ -2178,96 +2066,42 @@
 //
 //#define TOUCH_UI_FTDI_EVE

-//
-// Touch-screen LCD for Anycubic printers
-//
-//#define ANYCUBIC_LCD_I3MEGA
-//#define ANYCUBIC_LCD_CHIRON
-#if EITHER(ANYCUBIC_LCD_I3MEGA, ANYCUBIC_LCD_CHIRON)
-  #define ANYCUBIC_LCD_SERIAL_PORT 3
-  //#define ANYCUBIC_LCD_DEBUG
-#endif
-
 //
 // Third-party or vendor-customized controller interfaces.
 // Sources should be installed in 'src/lcd/extensible_ui'.
 //
 //#define EXTENSIBLE_UI

-#if ENABLED(EXTENSIBLE_UI)
-  //#define EXTUI_LOCAL_BEEPER // Enables use of local Beeper pin with external display
-#endif
-
 //=============================================================================
 //=============================== Graphical TFTs ==============================
 //=============================================================================

-//
-// TFT display with optional touch screen
-// Color Marlin UI with standard menu system
-//
-//#define TFT_320x240
-//#define TFT_320x240_SPI
-//#define TFT_480x320
-//#define TFT_480x320_SPI
-
-//
-// Skip autodetect and force specific TFT driver
-// Mandatory for SPI screens with no MISO line
-// Available drivers are: ST7735, ST7789, ST7796, R61505, ILI9328, ILI9341, ILI9488
-//
-//#define TFT_DRIVER AUTO
-
-//
-// SPI display (MKS Robin Nano V2.0, MKS Gen L V2.0)
-// Upscaled 128x64 Marlin UI
-//
-//#define SPI_GRAPHICAL_TFT
-
 //
 // FSMC display (MKS Robin, Alfawise U20, JGAurora A5S, REXYZ A1, etc.)
-// Upscaled 128x64 Marlin UI
 //
 //#define FSMC_GRAPHICAL_TFT

-//
-// TFT LVGL UI
-//
-// Using default MKS icons and fonts from: https://git.io/JJvzK
-// Just copy the 'assets' folder from the build directory to the
-// root of your SD card, together with the compiled firmware.
-//
-//#define TFT_LVGL_UI_FSMC  // Robin nano v1.2 uses FSMC
-//#define TFT_LVGL_UI_SPI   // Robin nano v2.0 uses SPI
-
 //=============================================================================
 //============================  Other Controllers  ============================
 //=============================================================================

-//
-// Ender-3 v2 OEM display. A DWIN display with Rotary Encoder.
-//
-//#define DWIN_CREALITY_LCD
-
 //
 // ADS7843/XPT2046 ADC Touchscreen such as ILI9341 2.8
 //
-//#define TOUCH_SCREEN
-#if ENABLED(TOUCH_SCREEN)
+//#define TOUCH_BUTTONS
+#if ENABLED(TOUCH_BUTTONS)
  #define BUTTON_DELAY_EDIT  50 // (ms) Button repeat delay for edit screens
  #define BUTTON_DELAY_MENU 250 // (ms) Button repeat delay for menus

-  #define TOUCH_SCREEN_CALIBRATION
-
-  //#define XPT2046_X_CALIBRATION 12316
-  //#define XPT2046_Y_CALIBRATION -8981
-  //#define XPT2046_X_OFFSET        -43
-  //#define XPT2046_Y_OFFSET        257
+  #define XPT2046_X_CALIBRATION   12316
+  #define XPT2046_Y_CALIBRATION  -8981
+  #define XPT2046_X_OFFSET       -43
+  #define XPT2046_Y_OFFSET        257
 #endif

 //
 // RepRapWorld REPRAPWORLD_KEYPAD v1.1
-// https://reprapworld.com/products/electronics/ramps/keypad_v1_0_fully_assembled/
+// http://reprapworld.com/?products_details&products_id=202&cPath=1591_1626
 //
 //#define REPRAPWORLD_KEYPAD
 //#define REPRAPWORLD_KEYPAD_MOVE_STEP 10.0 // (mm) Distance to move per key-press
@@ -2278,10 +2112,6 @@

 // @section extras

-// Set number of user-controlled fans. Disable to use all board-defined fans.
-// :[1,2,3,4,5,6,7,8]
-//#define NUM_M106_FANS 1
-
 // Increase the FAN PWM frequency. Removes the PWM noise but increases heating in the FET/Arduino
 //#define FAST_PWM_FAN

@@ -2308,7 +2138,7 @@
 // then the BLUE led is on. Otherwise the RED led is on. (1C hysteresis)
 //#define TEMP_STAT_LEDS

-// SkeinForge sends the wrong arc G-codes when using Arc Point as fillet procedure
+// SkeinForge sends the wrong arc g-codes when using Arc Point as fillet procedure
 //#define SF_ARC_FIX

 // Support for the BariCUDA Paste Extruder
@@ -2321,6 +2151,7 @@
 //#define PCA9632

 // Support for PCA9533 PWM LED driver
+// https://github.com/mikeshub/SailfishRGB_LED
 //#define PCA9533

 /**
@@ -2332,13 +2163,13 @@
 * Adds the M150 command to set the LED (or LED strip) color.
 * If pins are PWM capable (e.g., 4, 5, 6, 11) then a range of
 * luminance values can be set from 0 to 255.
- * For NeoPixel LED an overall brightness parameter is also available.
+ * For Neopixel LED an overall brightness parameter is also available.
 *
 * *** CAUTION ***
 *  LED Strips require a MOSFET Chip between PWM lines and LEDs,
 *  as the Arduino cannot handle the current the LEDs will require.
 *  Failure to follow this precaution can destroy your Arduino!
- *  NOTE: A separate 5V power supply is required! The NeoPixel LED needs
+ *  NOTE: A separate 5V power supply is required! The Neopixel LED needs
 *  more current than the Arduino 5V linear regulator can produce.
 * *** CAUTION ***
 *
@@ -2355,29 +2186,19 @@
  //#define RGB_LED_W_PIN -1
 #endif

-// Support for Adafruit NeoPixel LED driver
+// Support for Adafruit Neopixel LED driver
 //#define NEOPIXEL_LED
 #if ENABLED(NEOPIXEL_LED)
  #define NEOPIXEL_TYPE   NEO_GRBW // NEO_GRBW / NEO_GRB - four/three channel driver type (defined in Adafruit_NeoPixel.h)
  #define NEOPIXEL_PIN     4       // LED driving pin
  //#define NEOPIXEL2_TYPE NEOPIXEL_TYPE
  //#define NEOPIXEL2_PIN    5
-  #define NEOPIXEL_PIXELS 30       // Number of LEDs in the strip. (Longest strip when NEOPIXEL2_SEPARATE is disabled.)
+  #define NEOPIXEL_PIXELS 30       // Number of LEDs in the strip, larger of 2 strips if 2 neopixel strips are used
  #define NEOPIXEL_IS_SEQUENTIAL   // Sequential display for temperature change - LED by LED. Disable to change all LEDs at once.
  #define NEOPIXEL_BRIGHTNESS 127  // Initial brightness (0-255)
  //#define NEOPIXEL_STARTUP_TEST  // Cycle through colors at startup

-  // Support for second Adafruit NeoPixel LED driver controlled with M150 S1 ...
-  //#define NEOPIXEL2_SEPARATE
-  #if ENABLED(NEOPIXEL2_SEPARATE)
-    #define NEOPIXEL2_PIXELS      15  // Number of LEDs in the second strip
-    #define NEOPIXEL2_BRIGHTNESS 127  // Initial brightness (0-255)
-    #define NEOPIXEL2_STARTUP_TEST    // Cycle through colors at startup
-  #else
-    //#define NEOPIXEL2_INSERIES      // Default behavior is NeoPixel 2 in parallel
-  #endif
-
-  // Use a single NeoPixel LED for static (background) lighting
+  // Use a single Neopixel LED for static (background) lighting
  //#define NEOPIXEL_BKGD_LED_INDEX  0               // Index of the LED to use
  //#define NEOPIXEL_BKGD_COLOR { 255, 255, 255, 0 } // R, G, B, W
 #endif
--- 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
@@ -98,7 +98,7 @@ 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 $(CC) -dM -E - < /dev/null | grep __GNUC_MINOR__ | cut -f3 -d\ )
@@ -170,110 +170,98 @@ else ifeq ($(HARDWARE_MOTHERBOARD),1100)
 else ifeq ($(HARDWARE_MOTHERBOARD),1101)
 # Velleman K8400 Controller (derived from 3Drag Controller)
 else ifeq ($(HARDWARE_MOTHERBOARD),1102)
-# Velleman K8600 Controller (derived from 3Drag Controller)
-else ifeq ($(HARDWARE_MOTHERBOARD),1103)
 # 2PrintBeta BAM&DICE with STK drivers
-else ifeq ($(HARDWARE_MOTHERBOARD),1104)
+else ifeq ($(HARDWARE_MOTHERBOARD),1103)
 # 2PrintBeta BAM&DICE Due with STK drivers
-else ifeq ($(HARDWARE_MOTHERBOARD),1105)
+else ifeq ($(HARDWARE_MOTHERBOARD),1104)
 # MKS BASE v1.0
-else ifeq ($(HARDWARE_MOTHERBOARD),1106)
+else ifeq ($(HARDWARE_MOTHERBOARD),1105)
 # MKS v1.4 with A4982 stepper drivers
-else ifeq ($(HARDWARE_MOTHERBOARD),1107)
+else ifeq ($(HARDWARE_MOTHERBOARD),1106)
 # MKS v1.5 with Allegro A4982 stepper drivers
-else ifeq ($(HARDWARE_MOTHERBOARD),1108)
-# MKS v1.6 with Allegro A4982 stepper drivers
-else ifeq ($(HARDWARE_MOTHERBOARD),1109)
+else ifeq ($(HARDWARE_MOTHERBOARD),1107)
 # MKS BASE 1.0 with Heroic HR4982 stepper drivers
-else ifeq ($(HARDWARE_MOTHERBOARD),1110)
+else ifeq ($(HARDWARE_MOTHERBOARD),1108)
 # MKS GEN v1.3 or 1.4
-else ifeq ($(HARDWARE_MOTHERBOARD),1111)
+else ifeq ($(HARDWARE_MOTHERBOARD),1109)
 # MKS GEN L
-else ifeq ($(HARDWARE_MOTHERBOARD),1112)
+else ifeq ($(HARDWARE_MOTHERBOARD),1110)
 # zrib V2.0 control board (Chinese knock off RAMPS replica)
-else ifeq ($(HARDWARE_MOTHERBOARD),1113)
+else ifeq ($(HARDWARE_MOTHERBOARD),1111)
 # BigTreeTech or BIQU KFB2.0
-else ifeq ($(HARDWARE_MOTHERBOARD),1114)
+else ifeq ($(HARDWARE_MOTHERBOARD),1112)
 # Felix 2.0+ Electronics Board (RAMPS like)
-else ifeq ($(HARDWARE_MOTHERBOARD),1115)
+else ifeq ($(HARDWARE_MOTHERBOARD),1113)
 # Invent-A-Part RigidBoard
-else ifeq ($(HARDWARE_MOTHERBOARD),1116)
+else ifeq ($(HARDWARE_MOTHERBOARD),1114)
 # Invent-A-Part RigidBoard V2
-else ifeq ($(HARDWARE_MOTHERBOARD),1117)
+else ifeq ($(HARDWARE_MOTHERBOARD),1115)
 # Sainsmart 2-in-1 board
-else ifeq ($(HARDWARE_MOTHERBOARD),1118)
+else ifeq ($(HARDWARE_MOTHERBOARD),1116)
 # Ultimaker
-else ifeq ($(HARDWARE_MOTHERBOARD),1119)
+else ifeq ($(HARDWARE_MOTHERBOARD),1117)
 # Ultimaker (Older electronics. Pre 1.5.4. This is rare)
-else ifeq ($(HARDWARE_MOTHERBOARD),1120)
+else ifeq ($(HARDWARE_MOTHERBOARD),1118)
  MCU ?= atmega1280

 # Azteeg X3
-else ifeq ($(HARDWARE_MOTHERBOARD),1121)
+else ifeq ($(HARDWARE_MOTHERBOARD),1119)
 # Azteeg X3 Pro
-else ifeq ($(HARDWARE_MOTHERBOARD),1122)
+else ifeq ($(HARDWARE_MOTHERBOARD),1120)
 # Ultimainboard 2.x (Uses TEMP_SENSOR 20)
-else ifeq ($(HARDWARE_MOTHERBOARD),1123)
+else ifeq ($(HARDWARE_MOTHERBOARD),1121)
 # Rumba
-else ifeq ($(HARDWARE_MOTHERBOARD),1124)
+else ifeq ($(HARDWARE_MOTHERBOARD),1122)
 # Raise3D Rumba
-else ifeq ($(HARDWARE_MOTHERBOARD),1125)
+else ifeq ($(HARDWARE_MOTHERBOARD),1123)
 # Rapide Lite RL200 Rumba
-else ifeq ($(HARDWARE_MOTHERBOARD),1126)
+else ifeq ($(HARDWARE_MOTHERBOARD),1124)
 # Formbot T-Rex 2 Plus
-else ifeq ($(HARDWARE_MOTHERBOARD),1127)
+else ifeq ($(HARDWARE_MOTHERBOARD),1125)
 # Formbot T-Rex 3
-else ifeq ($(HARDWARE_MOTHERBOARD),1128)
+else ifeq ($(HARDWARE_MOTHERBOARD),1126)
 # Formbot Raptor
-else ifeq ($(HARDWARE_MOTHERBOARD),1129)
+else ifeq ($(HARDWARE_MOTHERBOARD),1127)
 # Formbot Raptor 2
-else ifeq ($(HARDWARE_MOTHERBOARD),1130)
+else ifeq ($(HARDWARE_MOTHERBOARD),1128)
 # bq ZUM Mega 3D
-else ifeq ($(HARDWARE_MOTHERBOARD),1131)
+else ifeq ($(HARDWARE_MOTHERBOARD),1129)
 # MakeBoard Mini v2.1.2 is a control board sold by MicroMake
-else ifeq ($(HARDWARE_MOTHERBOARD),1132)
+else ifeq ($(HARDWARE_MOTHERBOARD),1130)
 # TriGorilla Anycubic version 1.3 based on RAMPS EFB
-else ifeq ($(HARDWARE_MOTHERBOARD),1133)
+else ifeq ($(HARDWARE_MOTHERBOARD),1131)
 # TriGorilla Anycubic version 1.4 based on RAMPS EFB
-else ifeq ($(HARDWARE_MOTHERBOARD),1134)
+else ifeq ($(HARDWARE_MOTHERBOARD),1132)
 # TriGorilla Anycubic version 1.4 Rev 1.1
-else ifeq ($(HARDWARE_MOTHERBOARD),1135)
+else ifeq ($(HARDWARE_MOTHERBOARD),1133)
 # Creality: Ender-4, CR-8
-else ifeq ($(HARDWARE_MOTHERBOARD),1136)
+else ifeq ($(HARDWARE_MOTHERBOARD),1134)
 # Creality: CR10S, CR20, CR-X
-else ifeq ($(HARDWARE_MOTHERBOARD),1137)
+else ifeq ($(HARDWARE_MOTHERBOARD),1135)
 # Dagoma F5
-else ifeq ($(HARDWARE_MOTHERBOARD),1138)
-# FYSETC F6 1.3
-else ifeq ($(HARDWARE_MOTHERBOARD),1139)
-# FYSETC F6 1.5
-else ifeq ($(HARDWARE_MOTHERBOARD),1140)
+else ifeq ($(HARDWARE_MOTHERBOARD),1136)
+# FYSETC F6
+else ifeq ($(HARDWARE_MOTHERBOARD),1137)
 # Duplicator i3 Plus
-else ifeq ($(HARDWARE_MOTHERBOARD),1141)
+else ifeq ($(HARDWARE_MOTHERBOARD),1138)
 # VORON
-else ifeq ($(HARDWARE_MOTHERBOARD),1142)
+else ifeq ($(HARDWARE_MOTHERBOARD),1139)
 # TRONXY V3 1.0
-else ifeq ($(HARDWARE_MOTHERBOARD),1143)
+else ifeq ($(HARDWARE_MOTHERBOARD),1140)
 # Z-Bolt X Series
-else ifeq ($(HARDWARE_MOTHERBOARD),1144)
+else ifeq ($(HARDWARE_MOTHERBOARD),1141)
 # TT OSCAR
-else ifeq ($(HARDWARE_MOTHERBOARD),1145)
+else ifeq ($(HARDWARE_MOTHERBOARD),1142)
 # Overlord/Overlord Pro
-else ifeq ($(HARDWARE_MOTHERBOARD),1146)
+else ifeq ($(HARDWARE_MOTHERBOARD),1143)
 # ADIMLab Gantry v1
-else ifeq ($(HARDWARE_MOTHERBOARD),1147)
+else ifeq ($(HARDWARE_MOTHERBOARD),1144)
 # ADIMLab Gantry v2
-else ifeq ($(HARDWARE_MOTHERBOARD),1148)
+else ifeq ($(HARDWARE_MOTHERBOARD),1145)
 # BIQU Tango V1
-else ifeq ($(HARDWARE_MOTHERBOARD),1149)
+else ifeq ($(HARDWARE_MOTHERBOARD),1146)
 # MKS GEN L V2
-else ifeq ($(HARDWARE_MOTHERBOARD),1150)
-# Copymaster 3D
-else ifeq ($(HARDWARE_MOTHERBOARD),1151)
-# Ortur 4
-else ifeq ($(HARDWARE_MOTHERBOARD),1152)
-# Tenlog D3 Hero
-else ifeq ($(HARDWARE_MOTHERBOARD),1153)
+else ifeq ($(HARDWARE_MOTHERBOARD),1147)

 #
 # RAMBo and derivatives
@@ -366,36 +354,32 @@ else ifeq ($(HARDWARE_MOTHERBOARD),1501)
 else ifeq ($(HARDWARE_MOTHERBOARD),1502)
  HARDWARE_VARIANT ?= Sanguino
  MCU              ?= atmega644p
-# Melzi V2.0
+# Melzi with ATmega1284 (MaKr3d version)
 else ifeq ($(HARDWARE_MOTHERBOARD),1503)
  HARDWARE_VARIANT ?= Sanguino
  MCU              ?= atmega1284p
-# Melzi with ATmega1284 (MaKr3d version)
+# Melzi Creality3D board (for CR-10 etc)
 else ifeq ($(HARDWARE_MOTHERBOARD),1504)
  HARDWARE_VARIANT ?= Sanguino
  MCU              ?= atmega1284p
-# Melzi Creality3D board (for CR-10 etc)
+# Melzi Malyan M150 board
 else ifeq ($(HARDWARE_MOTHERBOARD),1505)
  HARDWARE_VARIANT ?= Sanguino
  MCU              ?= atmega1284p
-# Melzi Malyan M150 board
+# Tronxy X5S
 else ifeq ($(HARDWARE_MOTHERBOARD),1506)
  HARDWARE_VARIANT ?= Sanguino
  MCU              ?= atmega1284p
-# Tronxy X5S
+# STB V1.1
 else ifeq ($(HARDWARE_MOTHERBOARD),1507)
  HARDWARE_VARIANT ?= Sanguino
  MCU              ?= atmega1284p
-# STB V1.1
+# Azteeg X1
 else ifeq ($(HARDWARE_MOTHERBOARD),1508)
  HARDWARE_VARIANT ?= Sanguino
  MCU              ?= atmega1284p
-# Azteeg X1
-else ifeq ($(HARDWARE_MOTHERBOARD),1509)
-  HARDWARE_VARIANT ?= Sanguino
-  MCU              ?= atmega1284p
 # Anet 1.0 (Melzi clone)
-else ifeq ($(HARDWARE_MOTHERBOARD),1510)
+else ifeq ($(HARDWARE_MOTHERBOARD),1509)
  HARDWARE_VARIANT ?= Sanguino
  MCU              ?= atmega1284p

@@ -695,7 +679,7 @@ ifeq ($(HARDWARE_VARIANT), Teensy)

 else ifeq ($(HARDWARE_VARIANT), archim)
  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_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)
--- 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
@@ -1,6 +1,6 @@
 /**
 * Marlin 3D Printer Firmware
- * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
+ * Copyright (c) 2019 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
 *
 * Based on Sprinter and grbl.
 * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
@@ -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 "2.0.6.2"
+//#define SHORT_BUILD_VERSION "2.0.3"

 /**
 * 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 "2023-07-18"
+//#define STRING_DISTRIBUTION_DATE "2020-01-31"

 /**
 * Defines a generic printer name to be output to the LCD after booting Marlin.
@@ -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 "https://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.h
+++ b/Marlin/src/HAL/AVR/HAL.h
@@ -1,213 +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 "../shared/Marduino.h"
-#include "../shared/HAL_SPI.h"
-#include "fastio.h"
-#include "watchdog.h"
-#include "math.h"
-
-#ifdef USBCON
-  #include <HardwareSerial.h>
-#else
-  #define HardwareSerial_h // Hack to prevent HardwareSerial.h header inclusion
-  #include "MarlinSerial.h"
-#endif
-
-#include <stdint.h>
-#include <util/delay.h>
-#include <avr/eeprom.h>
-#include <avr/pgmspace.h>
-#include <avr/interrupt.h>
-#include <avr/io.h>
-
-#ifndef pgm_read_ptr
-  // Compatibility for avr-libc 1.8.0-4.1 included with Ubuntu for
-  // Windows Subsystem for Linux on Windows 10 as of 10/18/2019
-  #define pgm_read_ptr_far(address_long) (void*)__ELPM_word((uint32_t)(address_long))
-  #define pgm_read_ptr_near(address_short) (void*)__LPM_word((uint16_t)(address_short))
-  #define pgm_read_ptr(address_short) pgm_read_ptr_near(address_short)
-#endif
-
-// ------------------------
-// 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
-
-#ifndef CRITICAL_SECTION_START
-  #define CRITICAL_SECTION_START()  unsigned char _sreg = SREG; cli()
-  #define CRITICAL_SECTION_END()    SREG = _sreg
-#endif
-#define ISRS_ENABLED() TEST(SREG, SREG_I)
-#define ENABLE_ISRS()  sei()
-#define DISABLE_ISRS() cli()
-
-// ------------------------
-// Types
-// ------------------------
-
-typedef int8_t pin_t;
-
-#define SHARED_SERVOS HAS_SERVOS
-#define HAL_SERVO_LIB Servo
-
-// ------------------------
-// Public Variables
-// ------------------------
-
-//extern uint8_t MCUSR;
-
-// Serial ports
-#ifdef USBCON
-  #if ENABLED(BLUETOOTH)
-    #define MYSERIAL0 bluetoothSerial
-  #else
-    #define MYSERIAL0 Serial
-  #endif
-  #define NUM_SERIAL 1
-#else
-  #if !WITHIN(SERIAL_PORT, -1, 3)
-    #error "SERIAL_PORT must be from -1 to 3. Please update your configuration."
-  #endif
-
-  #define MYSERIAL0 customizedSerial1
-
-  #ifdef SERIAL_PORT_2
-    #if !WITHIN(SERIAL_PORT_2, -1, 3)
-      #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 MYSERIAL1 customizedSerial2
-    #define NUM_SERIAL 2
-  #else
-    #define NUM_SERIAL 1
-  #endif
-#endif
-
-#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 DGUS_SERIAL internalDgusSerial
-
-  #define DGUS_SERIAL_GET_TX_BUFFER_FREE DGUS_SERIAL.get_tx_buffer_free
-#endif
-
-#ifdef ANYCUBIC_LCD_SERIAL_PORT
-  #if !WITHIN(ANYCUBIC_LCD_SERIAL_PORT, -1, 3)
-    #error "ANYCUBIC_LCD_SERIAL_PORT must be from -1 to 3. Please update your configuration."
-  #elif ANYCUBIC_LCD_SERIAL_PORT == SERIAL_PORT
-    #error "ANYCUBIC_LCD_SERIAL_PORT must be different than SERIAL_PORT. Please update your configuration."
-  #elif defined(SERIAL_PORT_2) && ANYCUBIC_LCD_SERIAL_PORT == SERIAL_PORT_2
-    #error "ANYCUBIC_LCD_SERIAL_PORT must be different than SERIAL_PORT_2. Please update your configuration."
-  #endif
-  #define ANYCUBIC_LCD_SERIAL anycubicLcdSerial
-#endif
-
-// ------------------------
-// Public functions
-// ------------------------
-
-void HAL_init();
-
-//void cli();
-
-//void _delay_ms(const int delay);
-
-inline void HAL_clear_reset_source() { MCUSR = 0; }
-inline uint8_t HAL_get_reset_source() { return MCUSR; }
-
-#pragma GCC diagnostic push
-#pragma GCC diagnostic ignored "-Wunused-function"
-extern "C" {
-  int freeMemory();
-}
-#pragma GCC diagnostic pop
-
-// ADC
-#ifdef DIDR2
-  #define HAL_ANALOG_SELECT(ind) do{ if (ind < 8) SBI(DIDR0, ind); else SBI(DIDR2, ind & 0x07); }while(0)
-#else
-  #define HAL_ANALOG_SELECT(ind) SBI(DIDR0, ind);
-#endif
-
-inline void HAL_adc_init() {
-  ADCSRA = _BV(ADEN) | _BV(ADSC) | _BV(ADIF) | 0x07;
-  DIDR0 = 0;
-  #ifdef DIDR2
-    DIDR2 = 0;
-  #endif
-}
-
-#define SET_ADMUX_ADCSRA(ch) ADMUX = _BV(REFS0) | (ch & 0x07); SBI(ADCSRA, ADSC)
-#ifdef MUX5
-  #define HAL_START_ADC(ch) if (ch > 7) ADCSRB = _BV(MUX5); else ADCSRB = 0; SET_ADMUX_ADCSRA(ch)
-#else
-  #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)
-
-#define GET_PIN_MAP_PIN(index) index
-#define GET_PIN_MAP_INDEX(pin) pin
-#define PARSED_PIN_INDEX(code, dval) parser.intval(code, dval)
-
-#define HAL_SENSITIVE_PINS 0, 1
-
-#ifdef __AVR_AT90USB1286__
-  #define JTAG_DISABLE() do{ MCUCR = 0x80; MCUCR = 0x80; }while(0)
-#endif
-
-// 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
- *  as close as possible to the provided desired frequency. Internally
- *  calculates the required waveform generation mode, prescaler and
- *  resolution values required and sets the timer registers accordingly.
- *  NOTE that the frequency is applied to all pins on the timer (Ex OC3A, OC3B and OC3B)
- *  NOTE that there are limitations, particularly if using TIMER2. (see Configuration_adv.h -> FAST FAN PWM Settings)
- */
-void set_pwm_frequency(const pin_t pin, int f_desired);
-
-/**
- * set_pwm_duty
- *  Sets the PWM duty cycle of the provided pin to the provided value
- *  Optionally allows inverting the duty cycle [default = false]
- *  Optionally allows changing the maximum size of the provided value to enable finer PWM duty control [default = 255]
- */
-void set_pwm_duty(const pin_t pin, const uint16_t v, const uint16_t v_size=255, const bool invert=false);
--- a/Marlin/src/HAL/AVR/inc/Conditionals_LCD.h
+++ b/Marlin/src/HAL/AVR/inc/Conditionals_LCD.h
@@ -1,26 +0,0 @@
-/**
- * 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 <https://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/DUE/fastio/G2_PWM.cpp
+++ b/Marlin/src/HAL/DUE/fastio/G2_PWM.cpp
@@ -1,206 +0,0 @@
-/**
- * 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 <https://www.gnu.org/licenses/>.
- *
- */
-
-/**
- * The PWM module is only used to generate interrupts at specified times. It
- * is NOT used to directly toggle pins. The ISR writes to the pin assigned to
- * that interrupt.
- *
- * All PWMs use the same repetition rate.  The G2 needs about 10KHz min in order to
- * not have obvious ripple on the Vref signals.
- *
- * The data structures are setup to minimize the computation done by the ISR which
- * minimizes ISR execution time.  Execution times are 0.8 to 1.1 microseconds.
- *
- * FIve PWM interrupt sources are used.  Channel 0 sets the base period.  All Vref
- * signals are set active when this counter overflows and resets to zero.  The compare
- * values in channels 1-4 are set to give the desired duty cycle for that Vref pin.
- * When counter 0 matches the compare value then that channel generates an interrupt.
- * The ISR checks the source of the interrupt and sets the corresponding pin inactive.
- *
- * Some jitter in the Vref signal is OK so the interrupt priority is left at its default value.
- */
-
-#include "../../../inc/MarlinConfig.h"
-
-#if MB(PRINTRBOARD_G2)
-
-#include "G2_PWM.h"
-
-#if PIN_EXISTS(MOTOR_CURRENT_PWM_X)
-  #define G2_PWM_X 1
-#else
-  #define G2_PWM_X 0
-#endif
-#if PIN_EXISTS(MOTOR_CURRENT_PWM_Y)
-  #define G2_PWM_Y 1
-#else
-  #define G2_PWM_Y 0
-#endif
-#if PIN_EXISTS(MOTOR_CURRENT_PWM_Z)
-  #define G2_PWM_Z 1
-#else
-  #define G2_PWM_Z 0
-#endif
-#if PIN_EXISTS(MOTOR_CURRENT_PWM_E)
-  #define G2_PWM_E 1
-#else
-  #define G2_PWM_E 0
-#endif
-#define G2_MASK_X(V) (G2_PWM_X * (V))
-#define G2_MASK_Y(V) (G2_PWM_Y * (V))
-#define G2_MASK_Z(V) (G2_PWM_Z * (V))
-#define G2_MASK_E(V) (G2_PWM_E * (V))
-
-volatile uint32_t *SODR_A = &PIOA->PIO_SODR,
-                  *SODR_B = &PIOB->PIO_SODR,
-                  *CODR_A = &PIOA->PIO_CODR,
-                  *CODR_B = &PIOB->PIO_CODR;
-
-PWM_map ISR_table[NUM_PWMS] = PWM_MAP_INIT;
-
-void Stepper::digipot_init() {
-
-  #if PIN_EXISTS(MOTOR_CURRENT_PWM_X)
-    OUT_WRITE(MOTOR_CURRENT_PWM_X_PIN, 0);  // init pins
-  #endif
-  #if PIN_EXISTS(MOTOR_CURRENT_PWM_Y)
-    OUT_WRITE(MOTOR_CURRENT_PWM_Y_PIN, 0);
-  #endif
-  #if G2_PWM_Z
-    OUT_WRITE(MOTOR_CURRENT_PWM_Z_PIN, 0);
-  #endif
-  #if G2_PWM_E
-    OUT_WRITE(MOTOR_CURRENT_PWM_E_PIN, 0);
-  #endif
-
-  #define WPKEY          (0x50574D << 8) // “PWM” in ASCII
-  #define WPCMD_DIS_SW   0  // command to disable Write Protect SW
-  #define WPRG_ALL       (PWM_WPCR_WPRG0 | PWM_WPCR_WPRG1 | PWM_WPCR_WPRG2 | PWM_WPCR_WPRG3 | PWM_WPCR_WPRG4 | PWM_WPCR_WPRG5)  // all Write Protect Groups
-
-  #define PWM_CLOCK_F    F_CPU / 1000000UL   // set clock to 1MHz
-
-  PMC->PMC_PCER1 = PMC_PCER1_PID36;                       // enable PWM controller clock (disabled on power up)
-
-  PWM->PWM_WPCR = WPKEY | WPRG_ALL | WPCMD_DIS_SW;        // enable setting of all PWM registers
-  PWM->PWM_CLK = PWM_CLOCK_F;                             // enable CLK_A and set it to 1MHz, leave CLK_B disabled
-  PWM->PWM_CH_NUM[0].PWM_CMR = 0b1011;                    // set channel 0 to Clock A input & to left aligned
-  if (G2_PWM_X) PWM->PWM_CH_NUM[1].PWM_CMR = 0b1011;      // set channel 1 to Clock A input & to left aligned
-  if (G2_PWM_Y) PWM->PWM_CH_NUM[2].PWM_CMR = 0b1011;      // set channel 2 to Clock A input & to left aligned
-  if (G2_PWM_Z) PWM->PWM_CH_NUM[3].PWM_CMR = 0b1011;      // set channel 3 to Clock A input & to left aligned
-  if (G2_PWM_E) PWM->PWM_CH_NUM[4].PWM_CMR = 0b1011;      // set channel 4 to Clock A input & to left aligned
-
-  PWM->PWM_CH_NUM[0].PWM_CPRD = PWM_PERIOD_US;            // set channel 0 Period
-
-  PWM->PWM_IER2 = PWM_IER1_CHID0;                         // generate interrupt when counter0 overflows
-  PWM->PWM_IER2 = PWM_IER2_CMPM0
-    | G2_MASK_X(PWM_IER2_CMPM1)
-    | G2_MASK_Y(PWM_IER2_CMPM2)
-    | G2_MASK_Z(PWM_IER2_CMPM3)
-    | G2_MASK_E(PWM_IER2_CMPM4)
-  ; // generate interrupt on compare event
-
-  if (G2_PWM_X) PWM->PWM_CMP[1].PWM_CMPV = 0x010000000LL | G2_VREF_COUNT(G2_VREF(motor_current_setting[0])); // interrupt when counter0 == CMPV - used to set Motor 1 PWM inactive
-  if (G2_PWM_Y) PWM->PWM_CMP[2].PWM_CMPV = 0x010000000LL | G2_VREF_COUNT(G2_VREF(motor_current_setting[0])); // interrupt when counter0 == CMPV - used to set Motor 2 PWM inactive
-  if (G2_PWM_Z) PWM->PWM_CMP[3].PWM_CMPV = 0x010000000LL | G2_VREF_COUNT(G2_VREF(motor_current_setting[1])); // interrupt when counter0 == CMPV - used to set Motor 3 PWM inactive
-  if (G2_PWM_E) PWM->PWM_CMP[4].PWM_CMPV = 0x010000000LL | G2_VREF_COUNT(G2_VREF(motor_current_setting[2])); // interrupt when counter0 == CMPV - used to set Motor 4 PWM inactive
-
-  if (G2_PWM_X) PWM->PWM_CMP[1].PWM_CMPM = 0x0001;  // enable compare event
-  if (G2_PWM_Y) PWM->PWM_CMP[2].PWM_CMPM = 0x0001;  // enable compare event
-  if (G2_PWM_Z) PWM->PWM_CMP[3].PWM_CMPM = 0x0001;  // enable compare event
-  if (G2_PWM_E) PWM->PWM_CMP[4].PWM_CMPM = 0x0001;  // enable compare event
-
-  PWM->PWM_SCM = PWM_SCM_UPDM_MODE0 | PWM_SCM_SYNC0
-    | G2_MASK_X(PWM_SCM_SYNC1)
-    | G2_MASK_Y(PWM_SCM_SYNC2)
-    | G2_MASK_Z(PWM_SCM_SYNC3)
-    | G2_MASK_E(PWM_SCM_SYNC4)
-  ; // sync 1-4 with 0, use mode 0 for updates
-
-  PWM->PWM_ENA = PWM_ENA_CHID0
-    | G2_MASK_X(PWM_ENA_CHID1)
-    | G2_MASK_Y(PWM_ENA_CHID2)
-    | G2_MASK_Z(PWM_ENA_CHID3)
-    | G2_MASK_E(PWM_ENA_CHID4)
-  ; // enable channels used by G2
-
-  PWM->PWM_IER1 = PWM_IER1_CHID0
-    | G2_MASK_X(PWM_IER1_CHID1)
-    | G2_MASK_Y(PWM_IER1_CHID2)
-    | G2_MASK_Z(PWM_IER1_CHID3)
-    | G2_MASK_E(PWM_IER1_CHID4)
-  ; // enable interrupts for channels used by G2
-
-  NVIC_EnableIRQ(PWM_IRQn);     // Enable interrupt handler
-  NVIC_SetPriority(PWM_IRQn, NVIC_EncodePriority(0, 10, 0));  // normal priority for PWM module (can stand some jitter on the Vref signals)
-}
-
-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
-
-  switch (driver) {
-    case 0:
-      if (G2_PWM_X) PWM->PWM_CMP[1].PWM_CMPVUPD = 0x010000000LL | G2_VREF_COUNT(G2_VREF(current));    // update X & Y
-      if (G2_PWM_Y) PWM->PWM_CMP[2].PWM_CMPVUPD = 0x010000000LL | G2_VREF_COUNT(G2_VREF(current));
-      if (G2_PWM_X) PWM->PWM_CMP[1].PWM_CMPMUPD = 0x0001;  // enable compare event
-      if (G2_PWM_Y) PWM->PWM_CMP[2].PWM_CMPMUPD = 0x0001;  // enable compare event
-      if (G2_PWM_X || G2_PWM_Y) PWM->PWM_SCUC = PWM_SCUC_UPDULOCK; // tell the PWM controller to update the values on the next cycle
-      break;
-    case 1:
-      if (G2_PWM_Z) {
-        PWM->PWM_CMP[3].PWM_CMPVUPD = 0x010000000LL | G2_VREF_COUNT(G2_VREF(current));    // update Z
-        PWM->PWM_CMP[3].PWM_CMPMUPD = 0x0001;  // enable compare event
-        PWM->PWM_SCUC = PWM_SCUC_UPDULOCK; // tell the PWM controller to update the values on the next cycle
-      }
-      break;
-    default:
-      if (G2_PWM_E) {
-        PWM->PWM_CMP[4].PWM_CMPVUPD = 0x010000000LL | G2_VREF_COUNT(G2_VREF(current));    // update E
-        PWM->PWM_CMP[4].PWM_CMPMUPD = 0x0001;  // enable compare event
-        PWM->PWM_SCUC = PWM_SCUC_UPDULOCK; // tell the PWM controller to update the values on the next cycle
-      }
-      break;
-  }
-}
-
-volatile uint32_t PWM_ISR1_STATUS, PWM_ISR2_STATUS;
-
-void PWM_Handler() {
-  PWM_ISR1_STATUS = PWM->PWM_ISR1;
-  PWM_ISR2_STATUS = PWM->PWM_ISR2;
-  if (PWM_ISR1_STATUS & PWM_IER1_CHID0) {                                                         // CHAN_0 interrupt
-    if (G2_PWM_X) *ISR_table[0].set_register = ISR_table[0].write_mask;                           // set X to active
-    if (G2_PWM_Y) *ISR_table[1].set_register = ISR_table[1].write_mask;                           // set Y to active
-    if (G2_PWM_Z) *ISR_table[2].set_register = ISR_table[2].write_mask;                           // set Z to active
-    if (G2_PWM_E) *ISR_table[3].set_register = ISR_table[3].write_mask;                           // set E to active
-  }
-  else {
-    if (G2_PWM_X && (PWM_ISR2_STATUS & PWM_IER2_CMPM1)) *ISR_table[0].clr_register = ISR_table[0].write_mask; // set X to inactive
-    if (G2_PWM_Y && (PWM_ISR2_STATUS & PWM_IER2_CMPM2)) *ISR_table[1].clr_register = ISR_table[1].write_mask; // set Y to inactive
-    if (G2_PWM_Z && (PWM_ISR2_STATUS & PWM_IER2_CMPM3)) *ISR_table[2].clr_register = ISR_table[2].write_mask; // set Z to inactive
-    if (G2_PWM_E && (PWM_ISR2_STATUS & PWM_IER2_CMPM4)) *ISR_table[3].clr_register = ISR_table[3].write_mask; // set E to inactive
-  }
-  return;
-}
-
-#endif // PRINTRBOARD_G2
--- a/Marlin/src/HAL/DUE/inc/Conditionals_LCD.h
+++ b/Marlin/src/HAL/DUE/inc/Conditionals_LCD.h
@@ -1,26 +0,0 @@
-/**
- * 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 <https://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_post.h
+++ b/Marlin/src/HAL/DUE/inc/Conditionals_post.h
@@ -1,28 +0,0 @@
-/**
- * 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 <https://www.gnu.org/licenses/>.
- *
- */
-#pragma once
-
-#if USE_FALLBACK_EEPROM
-  #define FLASH_EEPROM_EMULATION
-#elif EITHER(I2C_EEPROM, SPI_EEPROM)
-  #define USE_SHARED_EEPROM 1
-#endif
--- 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"
-	)
--- a/Marlin/src/HAL/ESP32/inc/Conditionals_LCD.h
+++ b/Marlin/src/HAL/ESP32/inc/Conditionals_LCD.h
@@ -1,26 +0,0 @@
-/**
- * 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 <https://www.gnu.org/licenses/>.
- *
- */
-#pragma once
-
-#if HAS_SPI_TFT || HAS_FSMC_TFT
-  #error "Sorry! TFT displays are not available for HAL/ESP32."
-#endif
--- a/Marlin/src/HAL/HAL.h
+++ b/Marlin/src/HAL/HAL.h
@@ -1,6 +1,6 @@
 /**
 * Marlin 3D Printer Firmware
- * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
+ * Copyright (c) 2019 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
 *
 * Based on Sprinter and grbl.
 * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
@@ -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
@@ -27,20 +27,8 @@

 #define HAL_ADC_RANGE _BV(HAL_ADC_RESOLUTION)

-#ifndef I2C_ADDRESS
-  #define I2C_ADDRESS(A) (A)
-#endif
-
-// Needed for AVR sprintf_P PROGMEM extension
-#ifndef S_FMT
-  #define S_FMT "%s"
-#endif
-
-// String helper
-#ifndef PGMSTR
-  #define PGMSTR(NAM,STR) const char NAM[] = STR
-#endif
-
 inline void watchdog_refresh() {
-  TERN_(USE_WATCHDOG, HAL_watchdog_refresh());
+  #if ENABLED(USE_WATCHDOG)
+    HAL_watchdog_refresh();
+  #endif
 }
--- a/Marlin/src/HAL/HAL_AVR/HAL.cpp
+++ b/Marlin/src/HAL/HAL_AVR/HAL.cpp
@@ -1,6 +1,6 @@
 /**
 * Marlin 3D Printer Firmware
- * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
+ * Copyright (c) 2019 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
 *
 * Based on Sprinter and grbl.
 * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
@@ -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/HAL_AVR/HAL.h
+++ b/Marlin/src/HAL/HAL_AVR/HAL.h
@@ -1,6 +1,6 @@
 /**
 * Marlin 3D Printer Firmware
- * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
+ * Copyright (c) 2019 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
@@ -14,11 +14,54 @@
 * 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

+#include "../shared/Marduino.h"
+#include "../shared/HAL_SPI.h"
+#include "fastio.h"
+#include "watchdog.h"
+#include "math.h"
+
+#ifdef USBCON
+  #include <HardwareSerial.h>
+#else
+  #define HardwareSerial_h // Hack to prevent HardwareSerial.h header inclusion
+  #include "MarlinSerial.h"
+#endif
+
 #include <stdint.h>
+#include <util/delay.h>
+#include <avr/eeprom.h>
+#include <avr/pgmspace.h>
+#include <avr/interrupt.h>
+#include <avr/io.h>
+
+#ifndef pgm_read_ptr
+  // Compatibility for avr-libc 1.8.0-4.1 included with Ubuntu for
+  // Windows Subsystem for Linux on Windows 10 as of 10/18/2019
+  #define pgm_read_ptr_far(address_long) (void*)__ELPM_word((uint32_t)(address_long))
+  #define pgm_read_ptr_near(address_short) (void*)__LPM_word((uint16_t)(address_short))
+  #define pgm_read_ptr(address_short) pgm_read_ptr_near(address_short)
+#endif
+
+// ------------------------
+// Defines
+// ------------------------
+
+//#define analogInputToDigitalPin(IO) IO
+
+#ifndef CRITICAL_SECTION_START
+  #define CRITICAL_SECTION_START  unsigned char _sreg = SREG; cli()
+  #define CRITICAL_SECTION_END    SREG = _sreg
+#endif
+#define ISRS_ENABLED() TEST(SREG, SREG_I)
+#define ENABLE_ISRS()  sei()
+#define DISABLE_ISRS() cli()
+
+// On AVR this is in math.h?
+//#define square(x) ((x)*(x))

 // ------------------------
 // Types
@@ -27,21 +70,84 @@
 typedef uint16_t hal_timer_t;
 #define HAL_TIMER_TYPE_MAX 0xFFFF

+typedef int8_t pin_t;
+
+#define SHARED_SERVOS HAS_SERVOS
+#define HAL_SERVO_LIB Servo
+
 // ------------------------
-// Defines
+// Public Variables
 // ------------------------

+//extern uint8_t MCUSR;
+
+// Serial ports
+#ifdef USBCON
+  #if ENABLED(BLUETOOTH)
+    #define MYSERIAL0 bluetoothSerial
+  #else
+    #define MYSERIAL0 Serial
+  #endif
+  #define NUM_SERIAL 1
+#else
+  #if !WITHIN(SERIAL_PORT, -1, 3)
+    #error "SERIAL_PORT must be from -1 to 3. Please update your configuration."
+  #endif
+
+  #define MYSERIAL0 customizedSerial1
+
+  #ifdef SERIAL_PORT_2
+    #if !WITHIN(SERIAL_PORT_2, -1, 3)
+      #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 MYSERIAL1 customizedSerial2
+    #define NUM_SERIAL 2
+  #else
+    #define NUM_SERIAL 1
+  #endif
+#endif
+
+#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 DGUS_SERIAL internalDgusSerial
+
+  #define DGUS_SERIAL_GET_TX_BUFFER_FREE DGUS_SERIAL.get_tx_buffer_free
+#endif
+
+// ------------------------
+// Public functions
+// ------------------------
+
+void HAL_init();
+
+//void cli();
+
+//void _delay_ms(const int delay);
+
+inline void HAL_clear_reset_source() { MCUSR = 0; }
+inline uint8_t HAL_get_reset_source() { return MCUSR; }
+
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wunused-function"
+extern "C" {
+  int freeMemory();
+}
+#pragma GCC diagnostic pop
+
+// timers
 #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 STEP_TIMER_NUM          1
+#define TEMP_TIMER_NUM          0
+#define PULSE_TIMER_NUM         STEP_TIMER_NUM

 #define TEMP_TIMER_FREQUENCY    ((F_CPU) / 64.0 / 256.0)

@@ -112,8 +218,6 @@ FORCE_INLINE void HAL_timer_start(const uint8_t timer_num, const uint32_t) {
 #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)); \
@@ -186,10 +290,6 @@ void TIMER1_COMPA_vect() { \
 } \
 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)); \
@@ -256,4 +356,60 @@ void TIMER0_COMPB_vect() { \
 } \
 void TIMER0_COMPB_vect_bottom()

-#endif // HAL_TEMP_TIMER_ISR
+// ADC
+#ifdef DIDR2
+  #define HAL_ANALOG_SELECT(ind) do{ if (ind < 8) SBI(DIDR0, ind); else SBI(DIDR2, ind & 0x07); }while(0)
+#else
+  #define HAL_ANALOG_SELECT(ind) SBI(DIDR0, ind);
+#endif
+
+inline void HAL_adc_init() {
+  ADCSRA = _BV(ADEN) | _BV(ADSC) | _BV(ADIF) | 0x07;
+  DIDR0 = 0;
+  #ifdef DIDR2
+    DIDR2 = 0;
+  #endif
+}
+
+#define SET_ADMUX_ADCSRA(ch) ADMUX = _BV(REFS0) | (ch & 0x07); SBI(ADCSRA, ADSC)
+#ifdef MUX5
+  #define HAL_START_ADC(ch) if (ch > 7) ADCSRB = _BV(MUX5); else ADCSRB = 0; SET_ADMUX_ADCSRA(ch)
+#else
+  #define HAL_START_ADC(ch) ADCSRB = 0; SET_ADMUX_ADCSRA(ch)
+#endif
+
+#define HAL_ADC_RESOLUTION 10
+#define HAL_READ_ADC()  ADC
+#define HAL_ADC_READY() !TEST(ADCSRA, ADSC)
+
+#define GET_PIN_MAP_PIN(index) index
+#define GET_PIN_MAP_INDEX(pin) pin
+#define PARSED_PIN_INDEX(code, dval) parser.intval(code, dval)
+
+#define HAL_SENSITIVE_PINS 0, 1
+
+#ifdef __AVR_AT90USB1286__
+  #define JTAG_DISABLE() do{ MCUCR = 0x80; MCUCR = 0x80; }while(0)
+#endif
+
+// AVR compatibility
+#define strtof strtod
+
+/**
+ *  set_pwm_frequency
+ *  Sets the frequency of the timer corresponding to the provided pin
+ *  as close as possible to the provided desired frequency. Internally
+ *  calculates the required waveform generation mode, prescaler and
+ *  resolution values required and sets the timer registers accordingly.
+ *  NOTE that the frequency is applied to all pins on the timer (Ex OC3A, OC3B and OC3B)
+ *  NOTE that there are limitations, particularly if using TIMER2. (see Configuration_adv.h -> FAST FAN PWM Settings)
+ */
+void set_pwm_frequency(const pin_t pin, int f_desired);
+
+/**
+ * set_pwm_duty
+ *  Sets the PWM duty cycle of the provided pin to the provided value
+ *  Optionally allows inverting the duty cycle [default = false]
+ *  Optionally allows changing the maximum size of the provided value to enable finer PWM duty control [default = 255]
+ */
+void set_pwm_duty(const pin_t pin, const uint16_t v, const uint16_t v_size=255, const bool invert=false);
--- a/Marlin/src/HAL/HAL_AVR/HAL_SPI.cpp
+++ b/Marlin/src/HAL/HAL_AVR/HAL_SPI.cpp
@@ -1,6 +1,6 @@
 /**
 * Marlin 3D Printer Firmware
- * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
+ * Copyright (c) 2019 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
 *
 * Based on Sprinter and grbl.
 * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
@@ -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/>.
 *
 */

@@ -197,7 +197,7 @@ void spiBegin() {
    // output pin high - like sending 0xFF
    WRITE(MOSI_PIN, HIGH);

-    LOOP_L_N(i, 8) {
+    for (uint8_t i = 0; i < 8; i++) {
      WRITE(SCK_PIN, HIGH);

      nop; // adjust so SCK is nice
@@ -224,7 +224,7 @@ void spiBegin() {
  void spiSend(uint8_t data) {
    // no interrupts during byte send - about 8µs
    cli();
-    LOOP_L_N(i, 8) {
+    for (uint8_t i = 0; i < 8; i++) {
      WRITE(SCK_PIN, LOW);
      WRITE(MOSI_PIN, data & 0x80);
      data <<= 1;
--- a/Marlin/src/HAL/HAL_AVR/MarlinSerial.cpp
+++ b/Marlin/src/HAL/HAL_AVR/MarlinSerial.cpp
@@ -1,6 +1,6 @@
 /**
 * Marlin 3D Printer Firmware
- * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
+ * Copyright (c) 2019 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
 *
 * Based on Sprinter and grbl.
 * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
@@ -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/>.
 *
 */

@@ -43,10 +43,6 @@
  #include "MarlinSerial.h"
  #include "../../MarlinCore.h"

-  #if ENABLED(DIRECT_STEPPING)
-    #include "../../feature/direct_stepping.h"
-  #endif
-
  template<typename Cfg> typename MarlinSerial<Cfg>::ring_buffer_r MarlinSerial<Cfg>::rx_buffer = { 0, 0, { 0 } };
  template<typename Cfg> typename MarlinSerial<Cfg>::ring_buffer_t MarlinSerial<Cfg>::tx_buffer = { 0 };
  template<typename Cfg> bool     MarlinSerial<Cfg>::_written = false;
@@ -59,7 +55,7 @@
  // A SW memory barrier, to ensure GCC does not overoptimize loops
  #define sw_barrier() asm volatile("": : :"memory");

-  #include "../../feature/e_parser.h"
+  #include "../../feature/emergency_parser.h"

  // "Atomically" read the RX head index value without disabling interrupts:
  // This MUST be called with RX interrupts enabled, and CAN'T be called
@@ -135,18 +131,6 @@

    static EmergencyParser::State emergency_state; // = EP_RESET

-    // This must read the R_UCSRA register before reading the received byte to detect error causes
-    if (Cfg::DROPPED_RX && B_DOR && !++rx_dropped_bytes) --rx_dropped_bytes;
-    if (Cfg::RX_OVERRUNS && B_DOR && !++rx_buffer_overruns) --rx_buffer_overruns;
-    if (Cfg::RX_FRAMING_ERRORS && B_FE && !++rx_framing_errors) --rx_framing_errors;
-
-    // Read the character from the USART
-    uint8_t c = R_UDR;
-
-    #if ENABLED(DIRECT_STEPPING)
-      if (page_manager.maybe_store_rxd_char(c)) return;
-    #endif
-
    // Get the tail - Nothing can alter its value while this ISR is executing, but there's
    // a chance that this ISR interrupted the main process while it was updating the index.
    // The backup mechanism ensures the correct value is always returned.
@@ -158,6 +142,14 @@
    // Get the next element
    ring_buffer_pos_t i = (ring_buffer_pos_t)(h + 1) & (ring_buffer_pos_t)(Cfg::RX_SIZE - 1);

+    // This must read the R_UCSRA register before reading the received byte to detect error causes
+    if (Cfg::DROPPED_RX && B_DOR && !++rx_dropped_bytes) --rx_dropped_bytes;
+    if (Cfg::RX_OVERRUNS && B_DOR && !++rx_buffer_overruns) --rx_buffer_overruns;
+    if (Cfg::RX_FRAMING_ERRORS && B_FE && !++rx_framing_errors) --rx_framing_errors;
+
+    // Read the character from the USART
+    uint8_t c = R_UDR;
+
    if (Cfg::EMERGENCYPARSER) emergency_parser.update(emergency_state, c);

    // If the character is to be stored at the index just before the tail
@@ -690,7 +682,7 @@

    // Round correctly so that print(1.999, 2) prints as "2.00"
    double rounding = 0.5;
-    LOOP_L_N(i, digits) rounding *= 0.1;
+    for (uint8_t i = 0; i < digits; ++i) rounding *= 0.1;
    number += rounding;

    // Extract the integer part of the number and print it
@@ -792,24 +784,6 @@

 #endif

-#ifdef ANYCUBIC_LCD_SERIAL_PORT
-
-  ISR(SERIAL_REGNAME(USART,ANYCUBIC_LCD_SERIAL_PORT,_RX_vect)) {
-    MarlinSerial<AnycubicLcdSerialCfg<ANYCUBIC_LCD_SERIAL_PORT>>::store_rxd_char();
-  }
-
-  ISR(SERIAL_REGNAME(USART,ANYCUBIC_LCD_SERIAL_PORT,_UDRE_vect)) {
-    MarlinSerial<AnycubicLcdSerialCfg<ANYCUBIC_LCD_SERIAL_PORT>>::_tx_udr_empty_irq();
-  }
-
-  // Preinstantiate
-  template class MarlinSerial<AnycubicLcdSerialCfg<ANYCUBIC_LCD_SERIAL_PORT>>;
-
-  // Instantiate
-  MarlinSerial<AnycubicLcdSerialCfg<ANYCUBIC_LCD_SERIAL_PORT>> anycubicLcdSerial;
-
-#endif
-
 // For AT90USB targets use the UART for BT interfacing
 #if defined(USBCON) && ENABLED(BLUETOOTH)
  HardwareSerial bluetoothSerial;
--- a/Marlin/src/HAL/HAL_AVR/MarlinSerial.h
+++ b/Marlin/src/HAL/HAL_AVR/MarlinSerial.h
@@ -1,6 +1,6 @@
 /**
 * Marlin 3D Printer Firmware
- * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
+ * Copyright (c) 2019 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
 *
 * Based on Sprinter and grbl.
 * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
@@ -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
@@ -31,9 +31,9 @@
 * Templatized 01 October 2018 by Eduardo José Tagle to allow multiple instances
 */

-#include <WString.h>
+#include "../shared/MarlinSerial.h"

-#include "../../inc/MarlinConfigPre.h"
+#include <WString.h>

 #ifndef SERIAL_PORT
  #define SERIAL_PORT 0
@@ -261,12 +261,12 @@
    static constexpr int PORT               = serial;
    static constexpr unsigned int RX_SIZE   = RX_BUFFER_SIZE;
    static constexpr unsigned int TX_SIZE   = TX_BUFFER_SIZE;
-    static constexpr bool XONOFF            = ENABLED(SERIAL_XON_XOFF);
-    static constexpr bool EMERGENCYPARSER   = ENABLED(EMERGENCY_PARSER);
-    static constexpr bool DROPPED_RX        = ENABLED(SERIAL_STATS_DROPPED_RX);
-    static constexpr bool RX_OVERRUNS       = ENABLED(SERIAL_STATS_RX_BUFFER_OVERRUNS);
-    static constexpr bool RX_FRAMING_ERRORS = ENABLED(SERIAL_STATS_RX_FRAMING_ERRORS);
-    static constexpr bool MAX_RX_QUEUED     = ENABLED(SERIAL_STATS_MAX_RX_QUEUED);
+    static constexpr bool XONOFF            = bSERIAL_XON_XOFF;
+    static constexpr bool EMERGENCYPARSER   = bEMERGENCY_PARSER;
+    static constexpr bool DROPPED_RX        = bSERIAL_STATS_DROPPED_RX;
+    static constexpr bool RX_OVERRUNS       = bSERIAL_STATS_RX_BUFFER_OVERRUNS;
+    static constexpr bool RX_FRAMING_ERRORS = bSERIAL_STATS_RX_FRAMING_ERRORS;
+    static constexpr bool MAX_RX_QUEUED     = bSERIAL_STATS_MAX_RX_QUEUED;
  };
  extern MarlinSerial<MarlinSerialCfg<SERIAL_PORT>> customizedSerial1;

@@ -299,12 +299,12 @@
  template <uint8_t serial>
  struct MarlinInternalSerialCfg {
    static constexpr int PORT               = serial;
-    static constexpr unsigned int RX_SIZE   = DGUS_RX_BUFFER_SIZE;
-    static constexpr unsigned int TX_SIZE   = DGUS_TX_BUFFER_SIZE;
+    static constexpr unsigned int RX_SIZE   = 128;
+    static constexpr unsigned int TX_SIZE   = 48;
    static constexpr bool XONOFF            = false;
    static constexpr bool EMERGENCYPARSER   = false;
    static constexpr bool DROPPED_RX        = false;
-    static constexpr bool RX_OVERRUNS       = BOTH(HAS_DGUS_LCD, DGUS_SERIAL_STATS_RX_BUFFER_OVERRUNS);
+    static constexpr bool RX_OVERRUNS       = bDGUS_SERIAL_STATS_RX_BUFFER_OVERRUNS;
    static constexpr bool RX_FRAMING_ERRORS = false;
    static constexpr bool MAX_RX_QUEUED     = false;
  };
@@ -312,23 +312,6 @@
  extern MarlinSerial<MarlinInternalSerialCfg<DGUS_SERIAL_PORT>> internalDgusSerial;
 #endif

-#ifdef ANYCUBIC_LCD_SERIAL_PORT
-  template <uint8_t serial>
-  struct AnycubicLcdSerialCfg {
-    static constexpr int PORT               = serial;
-    static constexpr unsigned int RX_SIZE   = 64;
-    static constexpr unsigned int TX_SIZE   = 128;
-    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;
-  };
-
-  extern MarlinSerial<AnycubicLcdSerialCfg<ANYCUBIC_LCD_SERIAL_PORT>> anycubicLcdSerial;
-#endif
-
 // Use the UART for Bluetooth in AT90USB configurations
 #if defined(USBCON) && ENABLED(BLUETOOTH)
  extern HardwareSerial bluetoothSerial;
--- a/Marlin/src/HAL/HAL_AVR/Servo.cpp
+++ b/Marlin/src/HAL/HAL_AVR/Servo.cpp
@@ -1,6 +1,6 @@
 /**
 * Marlin 3D Printer Firmware
- * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
+ * Copyright (c) 2019 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
 *
 * Based on Sprinter and grbl.
 * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
@@ -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/>.
 *
 */

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

 #include <avr/interrupt.h>

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

--- a/Marlin/src/HAL/HAL_AVR/ServoTimers.h
+++ b/Marlin/src/HAL/HAL_AVR/ServoTimers.h
@@ -1,6 +1,6 @@
 /**
 * Marlin 3D Printer Firmware
- * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
+ * Copyright (c) 2019 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
 *
 * Based on Sprinter and grbl.
 * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
@@ -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/HAL_AVR/endstop_interrupts.h
+++ b/Marlin/src/HAL/HAL_AVR/endstop_interrupts.h
@@ -1,6 +1,6 @@
 /**
 * Marlin 3D Printer Firmware
- * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
+ * Copyright (c) 2019 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
 *
 * Based on Sprinter and grbl.
 * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
@@ -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/HAL_AVR/fast_pwm.cpp
+++ b/Marlin/src/HAL/HAL_AVR/fast_pwm.cpp
@@ -1,6 +1,6 @@
 /**
 * Marlin 3D Printer Firmware
- * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
+ * Copyright (c) 2019 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
 *
 * Based on Sprinter and grbl.
 * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
@@ -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"

@@ -167,7 +167,7 @@ void set_pwm_frequency(const pin_t pin, int f_desired) {
    uint16_t prescaler[] = { 0, 1, 8, /*TIMER2 ONLY*/32, 64, /*TIMER2 ONLY*/128, 256, 1024 };

    // loop over prescaler values
-    LOOP_S_L_N(i, 1, 8) {
+    for (uint8_t i = 1; i < 8; i++) {
      uint16_t res_temp_fast = 255, res_temp_phase_correct = 255;
      if (timer.n == 2) {
        // No resolution calculation for TIMER2 unless enabled USE_OCR2A_AS_TOP
@@ -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/HAL_AVR/fastio.cpp
+++ b/Marlin/src/HAL/HAL_AVR/fastio.cpp
@@ -1,6 +1,6 @@
 /**
 * Marlin 3D Printer Firmware
- * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
+ * Copyright (c) 2019 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
 *
 * Based on Sprinter and grbl.
 * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
@@ -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 &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/HAL_AVR/fastio.h
+++ b/Marlin/src/HAL/HAL_AVR/fastio.h
@@ -1,6 +1,6 @@
 /**
 * Marlin 3D Printer Firmware
- * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
+ * Copyright (c) 2019 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
 *
 * Based on Sprinter and grbl.
 * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
@@ -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
@@ -57,7 +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)
@@ -98,9 +98,9 @@

 #define SET_INPUT(IO)         _SET_INPUT(IO)
 #define SET_INPUT_PULLUP(IO)  do{ _SET_INPUT(IO); _WRITE(IO, HIGH); }while(0)
-#define SET_INPUT_PULLDOWN    SET_INPUT
 #define SET_OUTPUT(IO)        _SET_OUTPUT(IO)
-#define SET_PWM               SET_OUTPUT
+
+#define SET_PWM(IO)           SET_OUTPUT(IO)

 #define IS_INPUT(IO)          _IS_INPUT(IO)
 #define IS_OUTPUT(IO)         _IS_OUTPUT(IO)
--- a/Marlin/src/HAL/HAL_AVR/fastio/fastio_1280.h
+++ b/Marlin/src/HAL/HAL_AVR/fastio/fastio_1280.h
@@ -1,6 +1,6 @@
 /**
 * Marlin 3D Printer Firmware
- * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
+ * Copyright (c) 2019 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
 *
 * Based on Sprinter and grbl.
 * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
@@ -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
@@ -26,7 +26,7 @@
 *
 *   Hardware Pin  : 02 03 06 07 01 05 15 16 17 18 23 24 25 26 64 63 13 12 46 45 44 43 78 77 76 75 74 73 72 71 60 59 58 57 56 55 54 53 50 70 52 51 42 41 40 39 38 37 36 35 22 21 20 19 97 96 95 94 93 92 91 90 89 88 87 86 85 84 83 82 | 04 08 09 10 11 14 27 28 29 30 31 32 33 34 47 48 49 61 62 65 66 67 68 69 79 80 81 98 99 100
 *   Port          : E0 E1 E4 E5 G5 E3 H3 H4 H5 H6 B4 B5 B6 B7 J1 J0 H1 H0 D3 D2 D1 D0 A0 A1 A2 A3 A4 A5 A6 A7 C7 C6 C5 C4 C3 C2 C1 C0 D7 G2 G1 G0 L7 L6 L5 L4 L3 L2 L1 L0 B3 B2 B1 B0 F0 F1 F2 F3 F4 F5 F6 F7 K0 K1 K2 K3 K4 K5 K6 K7 | E2 E6 E7 xx xx H2 H7 G3 G4 xx xx xx xx xx D4 D5 D6 xx xx J2 J3 J4 J5 J6 J7 xx xx xx xx xx
- *   Logical Pin   : 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 | 78 79 80 xx xx 84 85 71 70 xx xx xx xx xx 81 82 83 xx xx 72 73 75 76 77 74 xx xx xx xx xx
+ *   Logical Pin   : 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 | 78 79 80 xx xx 84 85 71 70 xx xx xx xx xx 81 82 83 xx xx 72 72 75 76 77 74 xx xx xx xx xx
 */

 #include "../fastio.h"
--- a/Marlin/src/HAL/HAL_AVR/fastio/fastio_1281.h
+++ b/Marlin/src/HAL/HAL_AVR/fastio/fastio_1281.h
@@ -1,6 +1,6 @@
 /**
 * Marlin 3D Printer Firmware
- * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
+ * Copyright (c) 2019 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
 *
 * Based on Sprinter and grbl.
 * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
@@ -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/HAL_AVR/fastio/fastio_168.h
+++ b/Marlin/src/HAL/HAL_AVR/fastio/fastio_168.h
@@ -1,6 +1,6 @@
 /**
 * Marlin 3D Printer Firmware
- * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
+ * Copyright (c) 2019 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
 *
 * Based on Sprinter and grbl.
 * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
@@ -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/HAL_AVR/fastio/fastio_644.h
+++ b/Marlin/src/HAL/HAL_AVR/fastio/fastio_644.h
@@ -1,6 +1,6 @@
 /**
 * Marlin 3D Printer Firmware
- * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
+ * Copyright (c) 2019 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
 *
 * Based on Sprinter and grbl.
 * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
@@ -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/HAL_AVR/fastio/fastio_AT90USB.h
+++ b/Marlin/src/HAL/HAL_AVR/fastio/fastio_AT90USB.h
@@ -1,6 +1,6 @@
 /**
 * Marlin 3D Printer Firmware
- * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
+ * Copyright (c) 2019 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
 *
 * Based on Sprinter and grbl.
 * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
@@ -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/HAL_AVR/inc/Conditionals_LCD.h
+++ b/Marlin/src/HAL/HAL_AVR/inc/Conditionals_LCD.h
@@ -1,6 +1,6 @@
 /**
 * Marlin 3D Printer Firmware
- * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
+ * Copyright (c) 2019 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
 *
 * Based on Sprinter and grbl.
 * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
@@ -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/HAL_AVR/inc/Conditionals_adv.h
+++ b/Marlin/src/HAL/HAL_AVR/inc/Conditionals_adv.h
@@ -1,6 +1,6 @@
 /**
 * Marlin 3D Printer Firmware
- * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
+ * Copyright (c) 2019 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
 *
 * Based on Sprinter and grbl.
 * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
@@ -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/HAL_AVR/inc/Conditionals_post.h
+++ b/Marlin/src/HAL/HAL_AVR/inc/Conditionals_post.h
@@ -1,6 +1,6 @@
 /**
 * Marlin 3D Printer Firmware
- * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
+ * Copyright (c) 2019 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
 *
 * Based on Sprinter and grbl.
 * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
@@ -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/HAL_AVR/inc/SanityCheck.h
+++ b/Marlin/src/HAL/HAL_AVR/inc/SanityCheck.h
@@ -1,6 +1,6 @@
 /**
 * Marlin 3D Printer Firmware
- * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
+ * Copyright (c) 2019 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
 *
 * Based on Sprinter and grbl.
 * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
@@ -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
 */
@@ -36,23 +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 && 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 TMC_HAS_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
--- a/Marlin/src/HAL/HAL_AVR/math.h
+++ b/Marlin/src/HAL/HAL_AVR/math.h
@@ -1,6 +1,6 @@
 /**
 * Marlin 3D Printer Firmware
- * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
+ * Copyright (c) 2019 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
 *
 * Based on Sprinter and grbl.
 * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
@@ -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/HAL_AVR/persistent_store_eeprom.cpp
+++ b/Marlin/src/HAL/HAL_AVR/persistent_store_eeprom.cpp
@@ -1,6 +1,6 @@
 /**
 * Marlin 3D Printer Firmware
- * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
+ * Copyright (c) 2019 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
 *
 * Based on Sprinter and grbl.
 * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
@@ -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__
@@ -25,18 +25,9 @@

 #if EITHER(EEPROM_SETTINGS, SD_FIRMWARE_UPDATE)

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

-#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) {
@@ -48,14 +39,14 @@ bool PersistentStore::write_data(int &pos, const uint8_t *value, size_t size, ui
    if (v != eeprom_read_byte(p)) {
      eeprom_write_byte(p, v);
      if (eeprom_read_byte(p) != v) {
-        SERIAL_ECHO_MSG(STR_ERR_EEPROM_WRITE);
+        SERIAL_ECHO_MSG(MSG_ERR_EEPROM_WRITE);
        return true;
      }
    }
    crc16(crc, &v, 1);
    pos++;
    value++;
-  }
+  };
  return false;
 }

@@ -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/HAL_AVR/pinsDebug.h
+++ b/Marlin/src/HAL/HAL_AVR/pinsDebug.h
@@ -1,6 +1,6 @@
 /**
 * Marlin 3D Printer Firmware
- * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
+ * Copyright (c) 2019 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
 *
 * 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
@@ -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
@@ -70,12 +70,12 @@

 void PRINT_ARRAY_NAME(uint8_t x) {
  char *name_mem_pointer = (char*)pgm_read_ptr(&pin_array[x].name);
-  LOOP_L_N(y, MAX_NAME_LENGTH) {
+  for (uint8_t y = 0; y < MAX_NAME_LENGTH; y++) {
    char temp_char = pgm_read_byte(name_mem_pointer + y);
    if (temp_char != 0)
      SERIAL_CHAR(temp_char);
    else {
-      LOOP_L_N(i, MAX_NAME_LENGTH - y) SERIAL_CHAR(' ');
+      for (uint8_t i = 0; i < MAX_NAME_LENGTH - y; i++) SERIAL_CHAR(' ');
      break;
    }
  }
--- a/Marlin/src/HAL/HAL_AVR/pinsDebug_Teensyduino.h
+++ b/Marlin/src/HAL/HAL_AVR/pinsDebug_Teensyduino.h
@@ -1,6 +1,6 @@
 /**
 * Marlin 3D Printer Firmware
- * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
+ * Copyright (c) 2019 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
 *
 * 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
@@ -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/HAL_AVR/pinsDebug_plus_70.h
+++ b/Marlin/src/HAL/HAL_AVR/pinsDebug_plus_70.h
@@ -1,6 +1,6 @@
 /**
 * Marlin 3D Printer Firmware
- * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
+ * Copyright (c) 2019 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
 *
 * 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
@@ -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/HAL_AVR/spi_pins.h
+++ b/Marlin/src/HAL/HAL_AVR/spi_pins.h
@@ -1,6 +1,6 @@
 /**
 * Marlin 3D Printer Firmware
- * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
+ * Copyright (c) 2019 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
 *
 * Based on Sprinter and grbl.
 * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
@@ -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/HAL_AVR/u8g_com_HAL_AVR_sw_spi.cpp
+++ b/Marlin/src/HAL/HAL_AVR/u8g_com_HAL_AVR_sw_spi.cpp
@@ -1,6 +1,6 @@
 /**
 * Marlin 3D Printer Firmware
- * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
+ * Copyright (c) 2019 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
 *
 * Based on Sprinter and grbl.
 * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
@@ -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/>.
 *
 */

@@ -88,7 +88,7 @@ void u8g_spiSend_sw_AVR_mode_0(uint8_t val) {
  volatile uint8_t *outData = u8g_outData,
                   *outClock = u8g_outClock;
  U8G_ATOMIC_START();
-  LOOP_L_N(i, 8) {
+  for (uint8_t i = 0; i < 8; i++) {
    if (val & 0x80)
      *outData |= bitData;
    else
@@ -108,7 +108,7 @@ void u8g_spiSend_sw_AVR_mode_3(uint8_t val) {
  volatile uint8_t *outData = u8g_outData,
                   *outClock = u8g_outClock;
  U8G_ATOMIC_START();
-  LOOP_L_N(i, 8) {
+  for (uint8_t i = 0; i < 8; i++) {
    *outClock &= bitNotClock;
    if (val & 0x80)
      *outData |= bitData;
--- a/Marlin/src/HAL/HAL_AVR/watchdog.cpp
+++ b/Marlin/src/HAL/HAL_AVR/watchdog.cpp
@@ -1,6 +1,6 @@
 /**
 * Marlin 3D Printer Firmware
- * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
+ * Copyright (c) 2019 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
 *
 * Based on Sprinter and grbl.
 * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
@@ -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"
@@ -61,7 +62,7 @@ void watchdog_init() {
 #if ENABLED(WATCHDOG_RESET_MANUAL)
  ISR(WDT_vect) {
    sei();  // With the interrupt driven serial we need to allow interrupts.
-    SERIAL_ERROR_MSG(STR_WATCHDOG_FIRED);
+    SERIAL_ERROR_MSG(MSG_WATCHDOG_FIRED);
    minkill();  // interrupt-safe final kill and infinite loop
  }
 #endif
--- a/Marlin/src/HAL/HAL_AVR/watchdog.h
+++ b/Marlin/src/HAL/HAL_AVR/watchdog.h
@@ -1,6 +1,6 @@
 /**
 * Marlin 3D Printer Firmware
- * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
+ * Copyright (c) 2019 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
 *
 * Based on Sprinter and grbl.
 * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
@@ -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/HAL_DUE/DebugMonitor.cpp
+++ b/Marlin/src/HAL/HAL_DUE/DebugMonitor.cpp
@@ -1,6 +1,6 @@
 /**
 * Marlin 3D Printer Firmware
- * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
+ * Copyright (c) 2019 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
 *
 * Based on Sprinter and grbl.
 * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
@@ -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 ARDUINO_ARCH_SAM

 #include "../../core/macros.h"
--- a/Marlin/src/HAL/HAL_DUE/EepromEmulation.cpp
+++ b/Marlin/src/HAL/HAL_DUE/EepromEmulation.cpp
@@ -1,30 +1,3 @@
-/**
- * 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
- *
- * 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/MarlinConfig.h"
-
-#if ENABLED(FLASH_EEPROM_EMULATION)

 /* EEPROM emulation over flash with reduced wear
 *
@@ -56,7 +29,14 @@
 *
 */

-//#define EE_EMU_DEBUG
+#ifdef ARDUINO_ARCH_SAM
+
+#include "../../inc/MarlinConfig.h"
+
+#if ENABLED(EEPROM_SETTINGS) && NONE(I2C_EEPROM, SPI_EEPROM)
+
+#include "../shared/Marduino.h"
+#include "../shared/persistent_store_api.h"

 #define EEPROMSize     4096
 #define PagesPerGroup   128
@@ -133,18 +113,15 @@ 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"
-
-static void ee_Dump(const int page, const void* data) {
-
-  #ifdef EE_EMU_DEBUG
+//#define EE_EMU_DEBUG
+#ifdef EE_EMU_DEBUG
+  static void ee_Dump(int page,const void* 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) {
@@ -154,16 +131,12 @@ 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
@@ -176,16 +149,17 @@ 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];
@@ -200,11 +174,13 @@ 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;
@@ -246,8 +222,10 @@ 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;
  }

@@ -271,9 +249,10 @@ 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;
  }

@@ -287,11 +266,11 @@ 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;
@@ -307,7 +286,7 @@ static bool ee_PageWrite(uint16_t page, const void* data) {
          }
        }
      }
-      DEBUG_ECHOLNPAIR("--> Differing bits: ", count);
+      SERIAL_ECHOLNPAIR("--> Differing bits: ", count);
    #endif

    return false;
@@ -324,13 +303,15 @@ __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;
@@ -371,9 +352,10 @@ 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;
  }

@@ -395,9 +377,10 @@ 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;
  }

@@ -411,17 +394,20 @@ 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;
@@ -504,7 +490,7 @@ 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,
@@ -596,7 +582,7 @@ static bool ee_IsPageClean(int page) {
  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;
@@ -922,9 +908,11 @@ 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++) {
@@ -932,9 +920,11 @@ 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);
      }
    }
@@ -944,69 +934,66 @@ 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 -----------------------------------------------------------*/
+uint8_t eeprom_read_byte(uint8_t* addr) {
+  ee_Init();
+  return ee_Read((uint32_t)addr);
+}

-#include "../shared/eeprom_api.h"
+void eeprom_write_byte(uint8_t* addr, uint8_t value) {
+  ee_Init();
+  ee_Write((uint32_t)addr, value);
+}

-#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) {
-  while (size--) {
-    uint8_t * const p = (uint8_t * const)pos;
-    uint8_t v = *value;
-    // EEPROM has only ~100,000 write cycles,
-    // so only write bytes that have changed!
-    if (v != ee_Read(uint32_t(p))) {
-      ee_Write(uint32_t(p), v);
-      delay(2);
-      if (ee_Read(uint32_t(p)) != v) {
-        SERIAL_ECHO_MSG(STR_ERR_EEPROM_WRITE);
-        return true;
-      }
-    }
-    crc16(crc, &v, 1);
-    pos++;
-    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;
  }
-  return false;
 }

-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_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;
+  }
 }

-#endif // FLASH_EEPROM_EMULATION
-#endif // ARDUINO_ARCH_SAM
+void eeprom_flush() {
+  ee_Flush();
+}
+
+#endif // EEPROM_SETTINGS && (!I2C_EEPROM && !SPI_EEPROM)
+#endif // ARDUINO_ARCH_AVR
--- a/Marlin/src/HAL/HAL_DUE/HAL.cpp
+++ b/Marlin/src/HAL/HAL_DUE/HAL.cpp
@@ -1,6 +1,6 @@
 /**
 * Marlin 3D Printer Firmware
- * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
+ * Copyright (c) 2019 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
@@ -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/>.
 */

 /**
--- a/Marlin/src/HAL/HAL_DUE/HAL.h
+++ b/Marlin/src/HAL/HAL_DUE/HAL.h
@@ -1,7 +1,7 @@
 /**
 * Marlin 3D Printer Firmware
 *
- * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
+ * Copyright (c) 2019 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
 * Copyright (c) 2016 Bob Cousins bobcousins42@googlemail.com
 * Copyright (c) 2015-2016 Nico Tonnhofer wurstnase.reprap@gmail.com
 *
@@ -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
@@ -30,16 +30,16 @@
 #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>

 // Define MYSERIAL0/1 before MarlinSerial includes!
-#if SERIAL_PORT == -1 || ENABLED(EMERGENCY_PARSER)
+#if SERIAL_PORT == -1
  #define MYSERIAL0 customizedSerial1
 #elif SERIAL_PORT == 0
  #define MYSERIAL0 Serial
@@ -56,7 +56,7 @@
 #ifdef 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)
+  #elif SERIAL_PORT_2 == -1
    #define MYSERIAL1 customizedSerial2
  #elif SERIAL_PORT_2 == 0
    #define MYSERIAL1 Serial
@@ -94,6 +94,7 @@
  #endif
 #endif

+
 #include "MarlinSerial.h"
 #include "MarlinSerialUSB.h"

@@ -118,8 +119,8 @@ typedef int8_t pin_t;
 //
 // Interrupts
 //
-#define CRITICAL_SECTION_START()  uint32_t primask = __get_PRIMASK(); __disable_irq()
-#define CRITICAL_SECTION_END()    if (!primask) __enable_irq()
+#define CRITICAL_SECTION_START  uint32_t primask = __get_PRIMASK(); __disable_irq()
+#define CRITICAL_SECTION_END    if (!primask) __enable_irq()
 #define ISRS_ENABLED() (!__get_PRIMASK())
 #define ENABLE_ISRS()  __enable_irq()
 #define DISABLE_ISRS() __disable_irq()
@@ -130,6 +131,14 @@ void sei();                     // Enable interrupts
 void HAL_clear_reset_source();  // clear reset reason
 uint8_t HAL_get_reset_source(); // get reset reason

+//
+// 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
 //
@@ -143,9 +152,8 @@ extern uint16_t HAL_adc_result;     // result of last ADC conversion

 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

--- a/Marlin/src/HAL/HAL_DUE/HAL_SPI.cpp
+++ b/Marlin/src/HAL/HAL_DUE/HAL_SPI.cpp
@@ -1,6 +1,6 @@
 /**
 * Marlin 3D Printer Firmware
- * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
+ * Copyright (c) 2019 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
 *
 * Based on Sprinter and grbl.
 * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
@@ -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/HAL_DUE/InterruptVectors.cpp
+++ b/Marlin/src/HAL/HAL_DUE/InterruptVectors.cpp
@@ -1,6 +1,6 @@
 /**
 * Marlin 3D Printer Firmware
- * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
+ * Copyright (c) 2019 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
 *
 * Based on Sprinter and grbl.
 * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
@@ -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/>.
 *
 */

@@ -63,13 +63,13 @@ static pfnISR_Handler* get_relocated_table_addr() {
  memcpy(&ram_tab, romtab, sizeof(ram_tab));

  // Disable global interrupts
-  CRITICAL_SECTION_START();
+  CRITICAL_SECTION_START;

  // Set the vector table base address to the SRAM copy
  SCB->VTOR = (uint32_t)(&ram_tab);

  // Reenable interrupts
-  CRITICAL_SECTION_END();
+  CRITICAL_SECTION_END;

  // Return the address of the table
  return (pfnISR_Handler*)(&ram_tab);
@@ -80,7 +80,7 @@ pfnISR_Handler install_isr(IRQn_Type irq, pfnISR_Handler newHandler) {
  pfnISR_Handler *isrtab = get_relocated_table_addr();

  // Disable global interrupts
-  CRITICAL_SECTION_START();
+  CRITICAL_SECTION_START;

  // Get the original handler
  pfnISR_Handler oldHandler = isrtab[irq + 16];
@@ -89,7 +89,7 @@ pfnISR_Handler install_isr(IRQn_Type irq, pfnISR_Handler newHandler) {
  isrtab[irq + 16] = newHandler;

  // Reenable interrupts
-  CRITICAL_SECTION_END();
+  CRITICAL_SECTION_END;

  // Return the original one
  return oldHandler;
--- a/Marlin/src/HAL/HAL_DUE/InterruptVectors.h
+++ b/Marlin/src/HAL/HAL_DUE/InterruptVectors.h
@@ -1,6 +1,6 @@
 /**
 * Marlin 3D Printer Firmware
- * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
+ * Copyright (c) 2019 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
 *
 * Based on Sprinter and grbl.
 * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
@@ -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/HAL_DUE/MarlinSerial.cpp
+++ b/Marlin/src/HAL/HAL_DUE/MarlinSerial.cpp
@@ -1,6 +1,6 @@
 /**
 * Marlin 3D Printer Firmware
- * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
+ * Copyright (c) 2019 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
 *
 * Based on Sprinter and grbl.
 * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
@@ -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/>.
 *
 */

@@ -45,7 +45,7 @@ template<typename Cfg> typename MarlinSerial<Cfg>::ring_buffer_pos_t MarlinSeria
 // A SW memory barrier, to ensure GCC does not overoptimize loops
 #define sw_barrier() asm volatile("": : :"memory");

-#include "../../feature/e_parser.h"
+#include "../../feature/emergency_parser.h"

 // (called with RX interrupts disabled)
 template<typename Cfg>
@@ -606,7 +606,7 @@ void MarlinSerial<Cfg>::printFloat(double number, uint8_t digits) {

  // Round correctly so that print(1.999, 2) prints as "2.00"
  double rounding = 0.5;
-  LOOP_L_N(i, digits) rounding *= 0.1;
+  for (uint8_t i = 0; i < digits; ++i) rounding *= 0.1;
  number += rounding;

  // Extract the integer part of the number and print it
@@ -629,13 +629,23 @@ void MarlinSerial<Cfg>::printFloat(double number, uint8_t digits) {

 // If not using the USB port as serial port
 #if SERIAL_PORT >= 0
-  template class MarlinSerial<MarlinSerialCfg<SERIAL_PORT>>;      // Define
-  MarlinSerial<MarlinSerialCfg<SERIAL_PORT>> customizedSerial1;   // Instantiate
+
+  // Preinstantiate
+  template class MarlinSerial<MarlinSerialCfg<SERIAL_PORT>>;
+
+  // Instantiate
+  MarlinSerial<MarlinSerialCfg<SERIAL_PORT>> customizedSerial1;
+
 #endif

-#if defined(SERIAL_PORT_2) && SERIAL_PORT_2 >= 0
-  template class MarlinSerial<MarlinSerialCfg<SERIAL_PORT_2>>;    // Define
-  MarlinSerial<MarlinSerialCfg<SERIAL_PORT_2>> customizedSerial2; // Instantiate
+#ifdef SERIAL_PORT_2
+
+  // Preinstantiate
+  template class MarlinSerial<MarlinSerialCfg<SERIAL_PORT_2>>;
+
+  // Instantiate
+  MarlinSerial<MarlinSerialCfg<SERIAL_PORT_2>> customizedSerial2;
+
 #endif

 #endif // ARDUINO_ARCH_SAM
--- a/Marlin/src/HAL/HAL_DUE/MarlinSerial.h
+++ b/Marlin/src/HAL/HAL_DUE/MarlinSerial.h
@@ -1,6 +1,6 @@
 /**
 * Marlin 3D Printer Firmware
- * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
+ * Copyright (c) 2019 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
 *
 * Based on Sprinter and grbl.
 * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
@@ -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
@@ -27,9 +27,9 @@
 * Based on MarlinSerial for AVR, copyright (c) 2006 Nicholas Zambetti.  All right reserved.
 */

-#include <WString.h>
+#include "../shared/MarlinSerial.h"

-#include "../../inc/MarlinConfigPre.h"
+#include <WString.h>

 #define DEC 10
 #define HEX 16
@@ -163,18 +163,22 @@ struct MarlinSerialCfg {
  static constexpr int PORT               = serial;
  static constexpr unsigned int RX_SIZE   = RX_BUFFER_SIZE;
  static constexpr unsigned int TX_SIZE   = TX_BUFFER_SIZE;
-  static constexpr bool XONOFF            = ENABLED(SERIAL_XON_XOFF);
-  static constexpr bool EMERGENCYPARSER   = ENABLED(EMERGENCY_PARSER);
-  static constexpr bool DROPPED_RX        = ENABLED(SERIAL_STATS_DROPPED_RX);
-  static constexpr bool RX_OVERRUNS       = ENABLED(SERIAL_STATS_RX_BUFFER_OVERRUNS);
-  static constexpr bool RX_FRAMING_ERRORS = ENABLED(SERIAL_STATS_RX_FRAMING_ERRORS);
-  static constexpr bool MAX_RX_QUEUED     = ENABLED(SERIAL_STATS_MAX_RX_QUEUED);
+  static constexpr bool XONOFF            = bSERIAL_XON_XOFF;
+  static constexpr bool EMERGENCYPARSER   = bEMERGENCY_PARSER;
+  static constexpr bool DROPPED_RX        = bSERIAL_STATS_DROPPED_RX;
+  static constexpr bool RX_OVERRUNS       = bSERIAL_STATS_RX_BUFFER_OVERRUNS;
+  static constexpr bool RX_FRAMING_ERRORS = bSERIAL_STATS_RX_FRAMING_ERRORS;
+  static constexpr bool MAX_RX_QUEUED     = bSERIAL_STATS_MAX_RX_QUEUED;
 };

 #if SERIAL_PORT >= 0
-  extern MarlinSerial<MarlinSerialCfg<SERIAL_PORT>> customizedSerial1;
-#endif

-#if defined(SERIAL_PORT_2) && SERIAL_PORT_2 >= 0
+  extern MarlinSerial<MarlinSerialCfg<SERIAL_PORT>> customizedSerial1;
+
+#endif // SERIAL_PORT >= 0
+
+#ifdef SERIAL_PORT_2
+
  extern MarlinSerial<MarlinSerialCfg<SERIAL_PORT_2>> customizedSerial2;
+
 #endif
--- a/Marlin/src/HAL/HAL_DUE/MarlinSerialUSB.cpp
+++ b/Marlin/src/HAL/HAL_DUE/MarlinSerialUSB.cpp
@@ -1,6 +1,6 @@
 /**
 * Marlin 3D Printer Firmware
- * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
+ * Copyright (c) 2019 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
 *
 * Based on Sprinter and grbl.
 * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
@@ -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/>.
 *
 */

@@ -29,12 +29,12 @@

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

-#if HAS_USB_SERIAL
+#if SERIAL_PORT == -1

 #include "MarlinSerialUSB.h"

 #if ENABLED(EMERGENCY_PARSER)
-  #include "../../feature/e_parser.h"
+  #include "../../feature/emergency_parser.h"
 #endif

 // Imports from Atmel USB Stack/CDC implementation
@@ -73,7 +73,9 @@ int MarlinSerialUSB::peek() {

  pending_char = udi_cdc_getc();

-  TERN_(EMERGENCY_PARSER, emergency_parser.update(emergency_state, (char)pending_char));
+  #if ENABLED(EMERGENCY_PARSER)
+    emergency_parser.update(emergency_state, (char)pending_char);
+  #endif

  return pending_char;
 }
@@ -95,7 +97,9 @@ int MarlinSerialUSB::read() {

  int c = udi_cdc_getc();

-  TERN_(EMERGENCY_PARSER, emergency_parser.update(emergency_state, (char)c));
+  #if ENABLED(EMERGENCY_PARSER)
+    emergency_parser.update(emergency_state, (char)c);
+  #endif

  return c;
 }
@@ -255,7 +259,7 @@ void MarlinSerialUSB::printFloat(double number, uint8_t digits) {

  // Round correctly so that print(1.999, 2) prints as "2.00"
  double rounding = 0.5;
-  LOOP_L_N(i, digits)
+  for (uint8_t i = 0; i < digits; ++i)
    rounding *= 0.1;

  number += rounding;
@@ -279,12 +283,8 @@ void MarlinSerialUSB::printFloat(double number, uint8_t digits) {
 }

 // Preinstantiate
-#if SERIAL_PORT == -1
-  MarlinSerialUSB customizedSerial1;
-#endif
-#if SERIAL_PORT_2 == -1
-  MarlinSerialUSB customizedSerial2;
-#endif
+MarlinSerialUSB customizedSerial1;
+
+#endif // SERIAL_PORT == -1

-#endif // HAS_USB_SERIAL
 #endif // ARDUINO_ARCH_SAM
--- a/Marlin/src/HAL/HAL_DUE/MarlinSerialUSB.h
+++ b/Marlin/src/HAL/HAL_DUE/MarlinSerialUSB.h
@@ -1,6 +1,6 @@
 /**
 * Marlin 3D Printer Firmware
- * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
+ * Copyright (c) 2019 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
 *
 * Based on Sprinter and grbl.
 * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
@@ -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
@@ -28,7 +28,7 @@

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

-#if HAS_USB_SERIAL
+#if SERIAL_PORT == -1

 #include <WString.h>

@@ -88,12 +88,6 @@ private:
  static void printFloat(double, uint8_t);
 };

-#if SERIAL_PORT == -1
-  extern MarlinSerialUSB customizedSerial1;
-#endif
+extern MarlinSerialUSB customizedSerial1;

-#if SERIAL_PORT_2 == -1
-  extern MarlinSerialUSB customizedSerial2;
-#endif
-
-#endif // HAS_USB_SERIAL
+#endif // SERIAL_PORT == -1
--- a/Marlin/src/HAL/HAL_DUE/Servo.cpp
+++ b/Marlin/src/HAL/HAL_DUE/Servo.cpp
@@ -1,6 +1,6 @@
 /**
 * Marlin 3D Printer Firmware
- * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
+ * Copyright (c) 2019 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
 *
 * Based on Sprinter and grbl.
 * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
@@ -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/HAL_DUE/ServoTimers.h
+++ b/Marlin/src/HAL/HAL_DUE/ServoTimers.h
--- a/Marlin/src/HAL/HAL_DUE/Tone.cpp
+++ b/Marlin/src/HAL/HAL_DUE/Tone.cpp
@@ -1,6 +1,6 @@
 /**
 * Marlin 3D Printer Firmware
- * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
+ * Copyright (c) 2019 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
 *
 * Based on Sprinter and grbl.
 * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
@@ -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/HAL_DUE/dogm/u8g_com_HAL_DUE_shared_hw_spi.cpp
+++ b/Marlin/src/HAL/HAL_DUE/dogm/u8g_com_HAL_DUE_shared_hw_spi.cpp
@@ -1,6 +1,6 @@
 /**
 * Marlin 3D Printer Firmware
- * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
+ * Copyright (c) 2019 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
 *
 * Based on Sprinter and grbl.
 * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
@@ -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/HAL_DUE/dogm/u8g_com_HAL_DUE_st7920_sw_spi.cpp
+++ b/Marlin/src/HAL/HAL_DUE/dogm/u8g_com_HAL_DUE_st7920_sw_spi.cpp
@@ -1,6 +1,6 @@
 /**
 * Marlin 3D Printer Firmware
- * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
+ * Copyright (c) 2019 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
 *
 * Based on Sprinter and grbl.
 * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
@@ -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/HAL_DUE/dogm/u8g_com_HAL_DUE_sw_spi.cpp
+++ b/Marlin/src/HAL/HAL_DUE/dogm/u8g_com_HAL_DUE_sw_spi.cpp
@@ -1,6 +1,6 @@
 /**
 * Marlin 3D Printer Firmware
- * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
+ * Copyright (c) 2019 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
 *
 * Based on Sprinter and grbl.
 * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
@@ -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/HAL_DUE/dogm/u8g_com_HAL_DUE_sw_spi_shared.cpp
+++ b/Marlin/src/HAL/HAL_DUE/dogm/u8g_com_HAL_DUE_sw_spi_shared.cpp
@@ -1,6 +1,6 @@
 /**
 * Marlin 3D Printer Firmware
- * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
+ * Copyright (c) 2019 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
 *
 * Based on Sprinter and grbl.
 * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
@@ -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/>.
 *
 */

@@ -80,7 +80,7 @@ Pio *SCK_pPio, *MOSI_pPio;
 uint32_t SCK_dwMask, MOSI_dwMask;

 void u8g_spiSend_sw_DUE_mode_0(uint8_t val) { // 3MHz
-  LOOP_L_N(i, 8) {
+  for (uint8_t i = 0; i < 8; i++) {
    if (val & 0x80)
      MOSI_pPio->PIO_SODR = MOSI_dwMask;
    else
@@ -94,7 +94,7 @@ void u8g_spiSend_sw_DUE_mode_0(uint8_t val) { // 3MHz
 }

 void u8g_spiSend_sw_DUE_mode_3(uint8_t val) { // 3.5MHz
-  LOOP_L_N(i, 8) {
+  for (uint8_t i = 0; i < 8; i++) {
    SCK_pPio->PIO_CODR = SCK_dwMask;
    DELAY_NS(50);
    if (val & 0x80)
--- a/Marlin/src/HAL/HAL_DUE/dogm/u8g_com_HAL_DUE_sw_spi_shared.h
+++ b/Marlin/src/HAL/HAL_DUE/dogm/u8g_com_HAL_DUE_sw_spi_shared.h
@@ -1,6 +1,6 @@
 /**
 * Marlin 3D Printer Firmware
- * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
+ * Copyright (c) 2019 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
 *
 * Based on Sprinter and grbl.
 * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
@@ -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/TEENSY31_32/endstop_interrupts.h
+++ b/Marlin/src/HAL/TEENSY31_32/endstop_interrupts.h
@@ -1,6 +1,6 @@
 /**
 * Marlin 3D Printer Firmware
- * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
+ * Copyright (c) 2019 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
 *
 * Based on Sprinter and grbl.
 * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
@@ -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/HAL_DUE/fastio.h
+++ b/Marlin/src/HAL/HAL_DUE/fastio.h
@@ -1,6 +1,6 @@
 /**
 * Marlin 3D Printer Firmware
- * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
+ * Copyright (c) 2019 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
 *
 * Based on Sprinter and grbl.
 * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
@@ -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
@@ -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
@@ -166,7 +166,7 @@
 // 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
-#define SET_PWM               SET_OUTPUT
+#define SET_PWM(IO)           SET_OUTPUT(IO)

 // Check if pin is an input
 #define IS_INPUT(IO)         ((digitalPinToPort(IO)->PIO_OSR & digitalPinToBitMask(IO)) == 0)
@@ -174,7 +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)
--- a/Marlin/src/HAL/HAL_DUE/fastio/G2_PWM.cpp
+++ b/Marlin/src/HAL/HAL_DUE/fastio/G2_PWM.cpp
@@ -0,0 +1,145 @@
+/**
+ * Marlin 3D Printer Firmware
+ * Copyright (c) 2019 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/>.
+ *
+ */
+
+/**
+ * The PWM module is only used to generate interrupts at specified times. It
+ * is NOT used to directly toggle pins. The ISR writes to the pin assigned to
+ * that interrupt.
+ *
+ * All PWMs use the same repetition rate.  The G2 needs about 10KHz min in order to
+ * not have obvious ripple on the Vref signals.
+ *
+ * The data structures are setup to minimize the computation done by the ISR which
+ * minimizes ISR execution time.  Execution times are 0.8 to 1.1 microseconds.
+ *
+ * FIve PWM interrupt sources are used.  Channel 0 sets the base period.  All Vref
+ * signals are set active when this counter overflows and resets to zero.  The compare
+ * values in channels 1-4 are set to give the desired duty cycle for that Vref pin.
+ * When counter 0 matches the compare value then that channel generates an interrupt.
+ * The ISR checks the source of the interrupt and sets the corresponding pin inactive.
+ *
+ * Some jitter in the Vref signal is OK so the interrupt priority is left at its default value.
+ */
+
+#include "../../../inc/MarlinConfig.h"
+
+#if MB(PRINTRBOARD_G2)
+
+#include "G2_PWM.h"
+
+volatile uint32_t *SODR_A = &PIOA->PIO_SODR,
+                  *SODR_B = &PIOB->PIO_SODR,
+                  *CODR_A = &PIOA->PIO_CODR,
+                  *CODR_B = &PIOB->PIO_CODR;
+
+PWM_map ISR_table[NUM_PWMS] = PWM_MAP_INIT;
+
+void Stepper::digipot_init() {
+
+  OUT_WRITE(MOTOR_CURRENT_PWM_X_PIN, 0);  // init pins
+  OUT_WRITE(MOTOR_CURRENT_PWM_Y_PIN, 0);
+  OUT_WRITE(MOTOR_CURRENT_PWM_Z_PIN, 0);
+  OUT_WRITE(MOTOR_CURRENT_PWM_E_PIN, 0);
+
+  #define WPKEY          (0x50574D << 8) // “PWM” in ASCII
+  #define WPCMD_DIS_SW   0  // command to disable Write Protect SW
+  #define WPRG_ALL       (PWM_WPCR_WPRG0 | PWM_WPCR_WPRG1 | PWM_WPCR_WPRG2 | PWM_WPCR_WPRG3 | PWM_WPCR_WPRG4 | PWM_WPCR_WPRG5)  // all Write Protect Groups
+
+  #define PWM_CLOCK_F    F_CPU / 1000000UL   // set clock to 1MHz
+
+  PMC->PMC_PCER1 = PMC_PCER1_PID36;                       // enable PWM controller clock (disabled on power up)
+
+  PWM->PWM_WPCR = WPKEY | WPRG_ALL | WPCMD_DIS_SW;        // enable setting of all PWM registers
+  PWM->PWM_CLK = PWM_CLOCK_F;                             // enable CLK_A and set it to 1MHz, leave CLK_B disabled
+  PWM->PWM_CH_NUM[0].PWM_CMR = 0b1011;                    // set channel 0 to Clock A input & to left aligned
+  PWM->PWM_CH_NUM[1].PWM_CMR = 0b1011;                    // set channel 1 to Clock A input & to left aligned
+  PWM->PWM_CH_NUM[2].PWM_CMR = 0b1011;                    // set channel 2 to Clock A input & to left aligned
+  PWM->PWM_CH_NUM[3].PWM_CMR = 0b1011;                    // set channel 3 to Clock A input & to left aligned
+  PWM->PWM_CH_NUM[4].PWM_CMR = 0b1011;                    // set channel 4 to Clock A input & to left aligned
+
+  PWM->PWM_CH_NUM[0].PWM_CPRD = PWM_PERIOD_US;            // set channel 0 Period
+
+  PWM->PWM_IER2 = PWM_IER1_CHID0;                         // generate interrupt when counter0 overflows
+  PWM->PWM_IER2 = PWM_IER2_CMPM0 | PWM_IER2_CMPM1 | PWM_IER2_CMPM2 | PWM_IER2_CMPM3 | PWM_IER2_CMPM4;        // generate interrupt on compare event
+
+  PWM->PWM_CMP[1].PWM_CMPV = 0x010000000LL | G2_VREF_COUNT(G2_VREF(motor_current_setting[0]));   // interrupt when counter0 == CMPV - used to set Motor 1 PWM inactive
+  PWM->PWM_CMP[2].PWM_CMPV = 0x010000000LL | G2_VREF_COUNT(G2_VREF(motor_current_setting[0]));   // interrupt when counter0 == CMPV - used to set Motor 2 PWM inactive
+  PWM->PWM_CMP[3].PWM_CMPV = 0x010000000LL | G2_VREF_COUNT(G2_VREF(motor_current_setting[1]));   // interrupt when counter0 == CMPV - used to set Motor 3 PWM inactive
+  PWM->PWM_CMP[4].PWM_CMPV = 0x010000000LL | G2_VREF_COUNT(G2_VREF(motor_current_setting[2]));   // interrupt when counter0 == CMPV - used to set Motor 4 PWM inactive
+
+  PWM->PWM_CMP[1].PWM_CMPM = 0x0001;  // enable compare event
+  PWM->PWM_CMP[2].PWM_CMPM = 0x0001;  // enable compare event
+  PWM->PWM_CMP[3].PWM_CMPM = 0x0001;  // enable compare event
+  PWM->PWM_CMP[4].PWM_CMPM = 0x0001;  // enable compare event
+
+  PWM->PWM_SCM = PWM_SCM_UPDM_MODE0 | PWM_SCM_SYNC0 | PWM_SCM_SYNC1 | PWM_SCM_SYNC2 | PWM_SCM_SYNC3 | PWM_SCM_SYNC4; // sync 1-4 with 0, use mode 0 for updates
+
+  PWM->PWM_ENA = PWM_ENA_CHID0 | PWM_ENA_CHID1 | PWM_ENA_CHID2 | PWM_ENA_CHID3 | PWM_ENA_CHID4;         // enable the channels used by G2
+  PWM->PWM_IER1 = PWM_IER1_CHID0 | PWM_IER1_CHID1 | PWM_IER1_CHID2 | PWM_IER1_CHID3 | PWM_IER1_CHID4;        // enable interrupts for the channels used by G2
+
+  NVIC_EnableIRQ(PWM_IRQn);     // Enable interrupt handler
+  NVIC_SetPriority(PWM_IRQn, NVIC_EncodePriority(0, 10, 0));  // normal priority for PWM module (can stand some jitter on the Vref signals)
+}
+
+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
+
+  switch (driver) {
+    case 0: PWM->PWM_CMP[1].PWM_CMPVUPD = 0x010000000LL | G2_VREF_COUNT(G2_VREF(current));    // update X & Y
+            PWM->PWM_CMP[2].PWM_CMPVUPD = 0x010000000LL | G2_VREF_COUNT(G2_VREF(current));
+            PWM->PWM_CMP[1].PWM_CMPMUPD = 0x0001;  // enable compare event
+            PWM->PWM_CMP[2].PWM_CMPMUPD = 0x0001;  // enable compare event
+            PWM->PWM_SCUC = PWM_SCUC_UPDULOCK; // tell the PWM controller to update the values on the next cycle
+            break;
+    case 1: PWM->PWM_CMP[3].PWM_CMPVUPD = 0x010000000LL | G2_VREF_COUNT(G2_VREF(current));    // update Z
+            PWM->PWM_CMP[3].PWM_CMPMUPD = 0x0001;  // enable compare event
+            PWM->PWM_SCUC = PWM_SCUC_UPDULOCK; // tell the PWM controller to update the values on the next cycle
+            break;
+    default:PWM->PWM_CMP[4].PWM_CMPVUPD = 0x010000000LL | G2_VREF_COUNT(G2_VREF(current));    // update E
+            PWM->PWM_CMP[4].PWM_CMPMUPD = 0x0001;  // enable compare event
+            PWM->PWM_SCUC = PWM_SCUC_UPDULOCK; // tell the PWM controller to update the values on the next cycle
+            break;
+  }
+}
+
+volatile uint32_t PWM_ISR1_STATUS, PWM_ISR2_STATUS;
+
+void PWM_Handler() {
+  PWM_ISR1_STATUS = PWM->PWM_ISR1;
+  PWM_ISR2_STATUS = PWM->PWM_ISR2;
+  if (PWM_ISR1_STATUS & PWM_IER1_CHID0) {                           // CHAN_0 interrupt
+    *ISR_table[0].set_register = ISR_table[0].write_mask;                                          // set X to active
+    *ISR_table[1].set_register = ISR_table[1].write_mask;                                          // set Y to active
+    *ISR_table[2].set_register = ISR_table[2].write_mask;                                          // set Z to active
+    *ISR_table[3].set_register = ISR_table[3].write_mask;                                          // set E to active
+  }
+  else {
+    if (PWM_ISR2_STATUS & PWM_IER2_CMPM1)  *ISR_table[0].clr_register = ISR_table[0].write_mask;   // set X to inactive
+    if (PWM_ISR2_STATUS & PWM_IER2_CMPM2)  *ISR_table[1].clr_register = ISR_table[1].write_mask;   // set Y to inactive
+    if (PWM_ISR2_STATUS & PWM_IER2_CMPM3)  *ISR_table[2].clr_register = ISR_table[2].write_mask;   // set Z to inactive
+    if (PWM_ISR2_STATUS & PWM_IER2_CMPM4)  *ISR_table[3].clr_register = ISR_table[3].write_mask;   // set E to inactive
+  }
+  return;
+}
+
+#endif // PRINTRBOARD_G2
--- a/Marlin/src/HAL/HAL_DUE/fastio/G2_PWM.h
+++ b/Marlin/src/HAL/HAL_DUE/fastio/G2_PWM.h
@@ -1,6 +1,6 @@
 /**
 * Marlin 3D Printer Firmware
- * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
+ * Copyright (c) 2019 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
 *
 * Based on Sprinter and grbl.
 * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
@@ -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
@@ -63,7 +63,7 @@ extern PWM_map ISR_table[NUM_PWMS];
 extern uint32_t motor_current_setting[3];

 #define IR_BIT(p) (WITHIN(p, 0, 3) ? (p) : (p) + 4)
-#define COPY_ACTIVE_TABLE() do{ LOOP_L_N(i, 6) work_table[i] = active_table[i]; }while(0)
+#define COPY_ACTIVE_TABLE() do{ for (uint8_t i = 0; i < 6 ; i++) work_table[i] = active_table[i]; }while(0)

 #define PWM_MR0 19999         // base repetition rate minus one count - 20mS
 #define PWM_PR 24             // prescaler value - prescaler divide by 24 + 1  -  1 MHz output
--- a/Marlin/src/HAL/HAL_DUE/fastio/G2_pins.h
+++ b/Marlin/src/HAL/HAL_DUE/fastio/G2_pins.h
@@ -1,6 +1,6 @@
 /**
 * Marlin 3D Printer Firmware
- * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
+ * Copyright (c) 2019 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
 *
 * Based on Sprinter and grbl.
 * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
@@ -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/HAL_DUE/inc/Conditionals_LCD.h
+++ b/Marlin/src/HAL/HAL_DUE/inc/Conditionals_LCD.h
@@ -0,0 +1,22 @@
+/**
+ * Marlin 3D Printer Firmware
+ * Copyright (c) 2019 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/>.
+ *
+ */
+#pragma once
--- a/Marlin/src/HAL/HAL_DUE/inc/Conditionals_adv.h
+++ b/Marlin/src/HAL/HAL_DUE/inc/Conditionals_adv.h
@@ -1,6 +1,6 @@
 /**
 * Marlin 3D Printer Firmware
- * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
+ * Copyright (c) 2019 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
 *
 * Based on Sprinter and grbl.
 * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
@@ -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/HAL_DUE/inc/Conditionals_post.h
+++ b/Marlin/src/HAL/HAL_DUE/inc/Conditionals_post.h
@@ -1,6 +1,6 @@
 /**
 * Marlin 3D Printer Firmware
- * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
+ * Copyright (c) 2019 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
 *
 * Based on Sprinter and grbl.
 * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
@@ -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/HAL_DUE/inc/SanityCheck.h
+++ b/Marlin/src/HAL/HAL_DUE/inc/SanityCheck.h
@@ -1,6 +1,6 @@
 /**
 * Marlin 3D Printer Firmware
- * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
+ * Copyright (c) 2019 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
 *
 * Based on Sprinter and grbl.
 * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
@@ -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
@@ -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
+#if TMC_HAS_SW_SERIAL
  #error "TMC220x Software Serial is not supported on this platform."
 #endif
--- a/Marlin/src/HAL/HAL_DUE/persistent_store_eeprom.cpp
+++ b/Marlin/src/HAL/HAL_DUE/persistent_store_eeprom.cpp
@@ -1,7 +1,7 @@
 /**
 * Marlin 3D Printer Firmware
 *
- * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
+ * Copyright (c) 2019 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
@@ -17,29 +17,32 @@
 * 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"
+#include "../shared/persistent_store_api.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) && NONE(I2C_EEPROM, SPI_EEPROM)
+  #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 NONE(I2C_EEPROM, SPI_EEPROM)
+    eeprom_flush();
+  #endif
+  return true;
+}

 bool PersistentStore::write_data(int &pos, const uint8_t *value, size_t size, uint16_t *crc) {
  while (size--) {
@@ -51,14 +54,14 @@ bool PersistentStore::write_data(int &pos, const uint8_t *value, size_t size, ui
      eeprom_write_byte(p, v);
      delay(2);
      if (eeprom_read_byte(p) != v) {
-        SERIAL_ECHO_MSG(STR_ERR_EEPROM_WRITE);
+        SERIAL_ECHO_MSG(MSG_ERR_EEPROM_WRITE);
        return true;
      }
    }
    crc16(crc, &v, 1);
    pos++;
    value++;
-  }
+  };
  return false;
 }

@@ -73,5 +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/HAL_DUE/pinsDebug.h
+++ b/Marlin/src/HAL/HAL_DUE/pinsDebug.h
@@ -1,6 +1,6 @@
 /**
 * Marlin 3D Printer Firmware
- * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
+ * Copyright (c) 2019 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
 *
 * 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
@@ -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/>.
 *
 */

--- a/Marlin/src/HAL/HAL_DUE/spi_pins.h
+++ b/Marlin/src/HAL/HAL_DUE/spi_pins.h
@@ -1,6 +1,6 @@
 /**
 * Marlin 3D Printer Firmware
- * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
+ * Copyright (c) 2019 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
 *
 * Based on Sprinter and grbl.
 * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
@@ -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/HAL_DUE/timers.cpp
+++ b/Marlin/src/HAL/HAL_DUE/timers.cpp
@@ -1,7 +1,7 @@
 /**
 * Marlin 3D Printer Firmware
 *
- * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
+ * Copyright (c) 2019 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
 * Copyright (c) 2016 Bob Cousins bobcousins42@googlemail.com
 * Copyright (c) 2015-2016 Nico Tonnhofer wurstnase.reprap@gmail.com
 *
@@ -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/>.
 *
 */

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

+#include "timers.h"
+
 // ------------------------
 // Local defines
 // ------------------------
--- a/Marlin/src/HAL/HAL_DUE/timers.h
+++ b/Marlin/src/HAL/HAL_DUE/timers.h
@@ -1,7 +1,7 @@
 /**
 * Marlin 3D Printer Firmware
 *
- * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
+ * Copyright (c) 2019 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
@@ -15,7 +15,7 @@
 * 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
@@ -40,17 +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

@@ -72,12 +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/HAL_DUE/usb/arduino_due_x.h
+++ b/Marlin/src/HAL/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/HAL_DUE/usb/compiler.h
+++ b/Marlin/src/HAL/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
--- a/Marlin/src/HAL/HAL_DUE/usb/conf_access.h
+++ b/Marlin/src/HAL/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/HAL_DUE/usb/conf_clock.h
+++ b/Marlin/src/HAL/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/HAL_DUE/usb/conf_usb.h
+++ b/Marlin/src/HAL/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/HAL_DUE/usb/ctrl_access.c
+++ b/Marlin/src/HAL/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/HAL_DUE/usb/ctrl_access.h
+++ b/Marlin/src/HAL/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/Show More
+++ b/Show More
Author	SHA1	Message	Date
Scott Lahteine	8eb6603e2a	Version 2.0.3	2020-01-30 19:08:05 -06:00
Scott Lahteine	caf9e93465	More files from errant merge	2020-01-30 19:08:01 -06:00
Scott Lahteine	d74f46243b	Merge remote-tracking branch 'upstream/bugfix-2.0.x' into version_203	2020-01-30 19:07:46 -06:00
Scott Lahteine	4d8dc093c9	Version 2.0.2	2020-01-29 23:19:24 -06:00
Roxy-3D	11d8c72ac5	Fix a merge error	2020-01-29 23:19:24 -06:00
Scott Lahteine	ec79034004	Remove extraneous G60/G61 lines	2020-01-27 15:41:50 -06:00
Scott Lahteine	ae2a0036eb	Merge remote-tracking branch 'upstream/bugfix-2.0.x' into release_202	2020-01-27 05:32:36 -06:00
Scott Lahteine	ccdeb3f2cd	Updates for GitHub Actions	2020-01-13 16:49:49 -06:00