Marlin 2.0.7.1

Co-authored-by: Scott Lahteine <thinkyhead@users.noreply.github.com>

.github/ISSUE_TEMPLATE/bug_report.md

@@ -0,0 +1,43 @@
+---
+name: Bug report
+about: Report a bug in Marlin
+title: "[BUG] (short description)"
+labels: ''
+assignees: ''
+
+---
+
+<!--
+
+Have you read Marlin's Code of Conduct? By filing an Issue, you are expected to comply with it, including treating everyone with respect: https://github.com/MarlinFirmware/Marlin/blob/master/.github/code_of_conduct.md
+
+Do you want to ask a question? Are you looking for support? Please don't post here. Instead please use one of the support links at https://github.com/MarlinFirmware/Marlin/issues/new/choose
+
+Before filing an issue be sure to test the "bugfix" branches to see whether the issue has been resolved.
+
+-->
+
+### Bug Description
+
+<!-- Description of the bug -->
+
+### My Configurations
+
+**Required:** Please include a ZIP file containing your `Configuration.h` and `Configuration_adv.h` files.
+
+### Steps to Reproduce
+
+<!-- Please describe the steps needed to reproduce the issue -->
+
+1. [First Step]
+2. [Second Step]
+3. [and so on...]
+
+**Expected behavior:** [What you expect to happen]
+
+**Actual behavior:** [What actually happens]
+
+#### Additional Information
+
+* Provide pictures or links to videos that clearly demonstrate the issue.
+* See [How Can I Contribute](#how-can-i-contribute) for additional guidelines.

.github/ISSUE_TEMPLATE/config.yml

@@ -0,0 +1,17 @@
+blank_issues_enabled: false
+contact_links:
+  - name: Marlin Documentation
+    url: http://marlinfw.org/
+    about: Lots of documentation on installing and using Marlin.
+  - name: MarlinFirmware Facebook group
+    url: https://www.facebook.com/groups/1049718498464482
+    about: Please ask and answer questions here.
+  - name: Marlin on Discord
+    url: https://discord.gg/n5NJ59y
+    about: Join the Discord server for support and discussion.
+  - name: Marlin Discussion Forum
+    url: http://forums.reprap.org/list.php?415
+    about: A searchable web forum hosted by RepRap dot org.
+  - name: Marlin Videos on YouTube
+    url: https://www.youtube.com/results?search_query=marlin+firmware
+    about: Tutorials and more from Marlin users all around the world. Great for new users!

.github/ISSUE_TEMPLATE/feature_request.md

@@ -0,0 +1,35 @@
+---
+name: Feature request
+about: Request a Feature
+title: "[FR] (feature request title)"
+labels: 'T: Feature Request'
+assignees: ''
+
+---
+
+<!--
+
+Have you read Marlin's Code of Conduct? By filing an Issue, you are expected to comply with it, including treating everyone with respect: https://github.com/MarlinFirmware/Marlin/blob/master/.github/code_of_conduct.md
+
+Do you want to ask a question? Are you looking for support? Please don't post here. Instead please use one of the support links at https://github.com/MarlinFirmware/Marlin/issues/new/choose
+
+Before filing an issue be sure to test the "bugfix" branches to see whether the issue has been resolved.
+
+-->
+
+### Description
+
+<!-- Description of the requested feature -->
+
+### Feature Workflow
+
+<!-- Please describe the feature's behavior, user interaction, etc. -->
+
+1. [First Action]
+2. [Second Action]
+3. [and so on...]
+
+#### Additional Information
+
+* Provide pictures or links that demonstrate a similar feature or concept.
+* See [How Can I Contribute](#how-can-i-contribute) for additional guidelines.

.github/issue_template.md

@@ -1,35 +1,11 @@
-<!--
+# NO SUPPORT REQUESTS PLEASE
 
-Have you read Marlin's Code of Conduct? By filing an Issue, you are expected to comply with it, including treating everyone with respect: https://github.com/MarlinFirmware/Marlin/blob/bugfix-2.0.x/.github/code_of_conduct.md
+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!
 
-Do you want to ask a question? Are you looking for support? Please don't post here. Instead use one of the following options:
+Instead use one of the following options:
 
 - 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 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.

.github/workflows/bump-date.yml

@@ -0,0 +1,35 @@
+#
+# bump-date.yml
+# Bump the distribution date once per day
+#
+
+name: Bump Distribution Date
+
+on:
+  schedule:
+    - cron: '0 0 * * *'
+
+jobs:
+  bump_date:
+    name: Bump Distribution Date
+    if: github.repository == 'MarlinFirmware/Marlin'
+
+    runs-on: ubuntu-latest
+
+    steps:
+
+    - name: Check out bugfix-2.0.x
+      uses: actions/checkout@v2
+      with:
+        ref: bugfix-2.0.x
+
+    - name: Bump Distribution Date
+      run: |
+        # Inline Bump Script
+        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}" && \
+        git config user.email "${GITHUB_ACTOR}@users.noreply.github.com" && \
+        git add . && \
+        git commit -m "[cron] Bump distribution date ($DIST)" && \
+        git push

.github/workflows/check-pr.yml

@@ -0,0 +1,33 @@
+#
+# check-pr.yml
+# Close PRs directed at release branches
+#
+
+name: PR Bad Target
+
+on:
+  pull_request:
+    branches:
+    - 1.0.x
+    - 1.1.x
+    - 2.0.x
+
+jobs:
+  bad_target:
+    name: PR Bad Target
+    if: github.repository == 'MarlinFirmware/Marlin'
+
+    runs-on: ubuntu-latest
+
+    steps:
+    - uses: peter-evans/close-pull@v1
+      with:
+        delete-branch: false
+        comment: >
+          Thanks for your contribution! Unfortunately we can't accept PRs directed at release branches. We make patches to the bugfix branches and only later do we push them out as releases.
+
+          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.

.github/workflows/close-stale.yml

@@ -0,0 +1,27 @@
+#
+# 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 has had no activity in the last 30 days. Please add a reply if you want to keep this issue active, otherwise it will be automatically closed within 7 days.'
+        days-before-stale: 30
+        days-before-close: 7
+        stale-issue-label: 'stale-closing-soon'
+        exempt-issue-labels: 'T: Feature Request'

.github/workflows/lock-closed.yml

@@ -0,0 +1,32 @@
+#
+# 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: ''

.github/workflows/unlock-reopened.yml

@@ -0,0 +1,22 @@
+#
+# 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 }}"

Marlin/Configuration.h

@@ -346,11 +346,10 @@
   #endif
 #endif
 
-// @section temperature
-
 //===========================================================================
 //============================= Thermal Settings ============================
 //===========================================================================
+// @section temperature
 
 /**
  * --NORMAL IS 4.7kohm PULLUP!-- 1kohm pullup can be used on hotend sensor, using correct resistor and table
@@ -486,12 +485,13 @@
   //#define PID_AUTOTUNE_MENU     // Add PID auto-tuning to the "Advanced Settings" menu. (~250 bytes of PROGMEM)
   //#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]
+
   #if ENABLED(PID_PARAMS_PER_HOTEND)
     // Specify between 1 and HOTENDS values per array.
     // If fewer than EXTRUDER values are provided, the last element will be repeated.
-    #define DEFAULT_Kp_LIST {  22.20,  20.0 }
-    #define DEFAULT_Ki_LIST {   1.08,   1.0 }
-    #define DEFAULT_Kd_LIST { 114.00, 112.0 }
+    #define DEFAULT_Kp_LIST {  22.20,  22.20 }
+    #define DEFAULT_Ki_LIST {   1.08,   1.08 }
+    #define DEFAULT_Kd_LIST { 114.00, 114.00 }
   #else
     #define DEFAULT_Kp  22.20
     #define DEFAULT_Ki   1.08
@@ -2304,9 +2304,6 @@
 // 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
-//#define SF_ARC_FIX
-
 // Support for the BariCUDA Paste Extruder
 //#define BARICUDA
 
@@ -2392,17 +2389,12 @@
   #define PRINTER_EVENT_LEDS
 #endif
 
-/**
- * R/C SERVO support
- * Sponsored by TrinityLabs, Reworked by codexmas
- */
-
 /**
  * Number of servos
  *
  * For some servo-related options NUM_SERVOS will be set automatically.
  * Set this manually if there are extra servos needing manual control.
- * Leave undefined or set to 0 to entirely disable the servo subsystem.
+ * Set to 0 to turn off servo support.
  */
 //#define NUM_SERVOS 3 // Servo index starts with 0 for M280 command
 
@@ -2414,5 +2406,5 @@
 // Only power servos during movement, otherwise leave off to prevent jitter
 //#define DEACTIVATE_SERVOS_AFTER_MOVE
 
-// Allow servo angle to be edited and saved to EEPROM
+// Edit servo angles with M281 and save to EEPROM with M500
 //#define EDITABLE_SERVO_ANGLES

Marlin/Configuration_adv.h

@@ -32,11 +32,10 @@
  */
 #define CONFIGURATION_ADV_H_VERSION 020007
 
-// @section temperature
-
 //===========================================================================
 //============================= Thermal Settings ============================
 //===========================================================================
+// @section temperature
 
 /**
  * Thermocouple sensors are quite sensitive to noise.  Any noise induced in
@@ -125,9 +124,19 @@
   #define HEATER_BED_INVERTING true
 #endif
 
-/**
- * Heated Chamber settings
- */
+//
+// Heated Bed Bang-Bang options
+//
+#if DISABLED(PIDTEMPBED)
+  #define BED_CHECK_INTERVAL 5000   // (ms) Interval between checks in bang-bang control
+  #if ENABLED(BED_LIMIT_SWITCHING)
+    #define BED_HYSTERESIS 2        // (°C) Only set the relevant heater state when ABS(T-target) > BED_HYSTERESIS
+  #endif
+#endif
+
+//
+// Heated Chamber options
+//
 #if TEMP_SENSOR_CHAMBER
   #define CHAMBER_MINTEMP             5
   #define CHAMBER_MAXTEMP            60
@@ -135,12 +144,28 @@
   //#define CHAMBER_LIMIT_SWITCHING
   //#define HEATER_CHAMBER_PIN       44   // Chamber heater on/off pin
   //#define HEATER_CHAMBER_INVERTING false
-#endif
 
-#if DISABLED(PIDTEMPBED)
-  #define BED_CHECK_INTERVAL 5000 // ms between checks in bang-bang control
-  #if ENABLED(BED_LIMIT_SWITCHING)
-    #define BED_HYSTERESIS 2 // Only disable heating if T>target+BED_HYSTERESIS and enable heating if T>target-BED_HYSTERESIS
+  //#define CHAMBER_FAN               // Enable a fan on the chamber
+  #if ENABLED(CHAMBER_FAN)
+    #define CHAMBER_FAN_MODE 2        // Fan control mode: 0=Static; 1=Linear increase when temp is higher than target; 2=V-shaped curve.
+    #if CHAMBER_FAN_MODE == 0
+      #define CHAMBER_FAN_BASE  255   // Chamber fan PWM (0-255)
+    #elif CHAMBER_FAN_MODE == 1
+      #define CHAMBER_FAN_BASE  128   // Base chamber fan PWM (0-255); turns on when chamber temperature is above the target
+      #define CHAMBER_FAN_FACTOR 25   // PWM increase per °C above target
+    #elif CHAMBER_FAN_MODE == 2
+      #define CHAMBER_FAN_BASE  128   // Minimum chamber fan PWM (0-255)
+      #define CHAMBER_FAN_FACTOR 25   // PWM increase per °C difference from target
+    #endif
+  #endif
+
+  //#define CHAMBER_VENT              // Enable a servo-controlled vent on the chamber
+  #if ENABLED(CHAMBER_VENT)
+    #define CHAMBER_VENT_SERVO_NR  1  // Index of the vent servo
+    #define HIGH_EXCESS_HEAT_LIMIT 5  // How much above target temp to consider there is excess heat in the chamber
+    #define LOW_EXCESS_HEAT_LIMIT 3
+    #define MIN_COOLING_SLOPE_TIME_CHAMBER_VENT 20
+    #define MIN_COOLING_SLOPE_DEG_CHAMBER_VENT 1.5
   #endif
 #endif
 
@@ -771,6 +796,7 @@
 //
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
+
   // Define positions for probing points, use the hotend as reference not the sensor.
   #define TRAMMING_POINT_XY { {  20, 20 }, { 200,  20 }, { 200, 200 }, { 20, 200 } }
 
@@ -793,6 +819,7 @@
    *   M5: 50 = Clockwise, 51 = Counter-Clockwise
    */
   #define TRAMMING_SCREW_THREAD 30
+
 #endif
 
 // @section motion
@@ -1048,6 +1075,14 @@
 
 #if HAS_LCD_MENU
 
+  // Add Probe Z Offset calibration to the Z Probe Offsets menu
+  #if HAS_BED_PROBE
+    //#define PROBE_OFFSET_WIZARD
+    #if ENABLED(PROBE_OFFSET_WIZARD)
+      #define PROBE_OFFSET_START -4.0   // Estimated nozzle-to-probe Z offset, plus a little extra
+    #endif
+  #endif
+
   // Include a page of printer information in the LCD Main Menu
   //#define LCD_INFO_MENU
   #if ENABLED(LCD_INFO_MENU)
@@ -1342,7 +1377,7 @@
   // Western only. Not available for Cyrillic, Kana, Turkish, Greek, or Chinese.
   //#define USE_BIG_EDIT_FONT
 
-  // A smaller font may be used on the Info Screen. Costs 2300 bytes of PROGMEM.
+  // A smaller font may be used on the Info Screen. Costs 2434 bytes of PROGMEM.
   // Western only. Not available for Cyrillic, Kana, Turkish, Greek, or Chinese.
   //#define USE_SMALL_INFOFONT
 
@@ -1768,6 +1803,7 @@
   #define N_ARC_CORRECTION       25 // Number of interpolated segments between corrections
   //#define ARC_P_CIRCLES           // Enable the 'P' parameter to specify complete circles
   //#define CNC_WORKSPACE_PLANES    // Allow G2/G3 to operate in XY, ZX, or YZ planes
+  //#define SF_ARC_FIX              // Enable only if using SkeinForge with "Arc Point" fillet procedure
 #endif
 
 // Support for G5 with XYZE destination and IJPQ offsets. Requires ~2666 bytes.
@@ -3523,6 +3559,11 @@
 //
 //#define M100_FREE_MEMORY_WATCHER
 
+//
+// M42 - Set pin states
+//
+//#define DIRECT_PIN_CONTROL
+
 //
 // M43 - display pin status, toggle pins, watch pins, watch endstops & toggle LED, test servo probe
 //

Marlin/Makefile

@@ -22,8 +22,10 @@
 #     (e.g. UPLOAD_PORT = /dev/tty.USB0).  If the exact name of this file
 #     changes, you can use * as a wild card (e.g. UPLOAD_PORT = /dev/tty.usb*).
 #
-#  3. Set the line containing "MCU" to match your board's processor.
-#     Older one's are atmega8 based, newer ones like Arduino Mini, Bluetooth
+#  3. Set the line containing "MCU" to match your board's processor. Set
+#     "PROG_MCU" as the AVR part name corresponding to "MCU". You can use the
+#     following command to get a list of correspondences: `avrdude -c alf -p x`
+#     Older boards are atmega8 based, newer ones like Arduino Mini, Bluetooth
 #     or Diecimila have the atmega168.  If you're using a LilyPad Arduino,
 #     change F_CPU to 8000000. If you are using Gen7 electronics, you
 #     probably need to use 20000000. Either way, you must regenerate
@@ -34,18 +36,18 @@
 #  5. Type "make upload", reset your Arduino board, and press enter to
 #     upload your program to the Arduino board.
 #
-# Note that all settings at the top of this file can be overriden from
+# Note that all settings at the top of this file can be overridden from
 # the command line with, for example, "make HARDWARE_MOTHERBOARD=71"
 #
 # To compile for RAMPS (atmega2560) with Arduino 1.6.9 at root/arduino you would use...
 #
 #   make ARDUINO_VERSION=10609 AVR_TOOLS_PATH=/root/arduino/hardware/tools/avr/bin/ \
-#   HARDWARE_MOTHERBOARD=33 ARDUINO_INSTALL_DIR=/root/arduino
+#   HARDWARE_MOTHERBOARD=1200 ARDUINO_INSTALL_DIR=/root/arduino
 #
 # To compile and upload simply add "upload" to the end of the line...
 #
 #   make ARDUINO_VERSION=10609 AVR_TOOLS_PATH=/root/arduino/hardware/tools/avr/bin/ \
-#   HARDWARE_MOTHERBOARD=33 ARDUINO_INSTALL_DIR=/root/arduino upload
+#   HARDWARE_MOTHERBOARD=1200 ARDUINO_INSTALL_DIR=/root/arduino upload
 #
 # If uploading doesn't work try adding the parameter "AVRDUDE_PROGRAMMER=wiring" or
 # start upload manually (using stk500) like so:
@@ -57,7 +59,26 @@
 #
 
 # This defines the board to compile for (see boards.h for your board's ID)
-HARDWARE_MOTHERBOARD ?= 11
+HARDWARE_MOTHERBOARD ?= 1020
+
+ifeq ($(OS),Windows_NT)
+  # Windows
+  ARDUINO_INSTALL_DIR ?= ${HOME}/Arduino
+  ARDUINO_USER_DIR ?= ${HOME}/Arduino
+else
+  UNAME_S := $(shell uname -s)
+  ifeq ($(UNAME_S),Linux)
+    # Linux
+    ARDUINO_INSTALL_DIR ?= /usr/share/arduino
+    ARDUINO_USER_DIR ?= ${HOME}/Arduino
+  endif
+  ifeq ($(UNAME_S),Darwin)
+    # Darwin (macOS)
+    ARDUINO_INSTALL_DIR ?= /Applications/Arduino.app/Contents/Java
+    ARDUINO_USER_DIR ?= ${HOME}/Documents/Arduino
+    AVR_TOOLS_PATH ?= /Applications/Arduino.app/Contents/Java/hardware/tools/avr/bin/
+  endif
+endif
 
 # Arduino source install directory, and version number
 # On most linuxes this will be /usr/share/arduino
@@ -67,32 +88,38 @@ ARDUINO_VERSION      ?= 106
 # The installed Libraries are in the User folder
 ARDUINO_USER_DIR ?= ${HOME}/Arduino
 
-# You can optionally set a path to the avr-gcc tools. Requires a trailing slash. (ex: /usr/local/avr-gcc/bin)
+# You can optionally set a path to the avr-gcc tools.
+# Requires a trailing slash. For example, /usr/local/avr-gcc/bin/
 AVR_TOOLS_PATH ?=
 
-#Programmer configuration
+# Programmer configuration
 UPLOAD_RATE        ?= 57600
 AVRDUDE_PROGRAMMER ?= arduino
-# on most linuxes this will be /dev/ttyACM0 or /dev/ttyACM1
+# On most linuxes this will be /dev/ttyACM0 or /dev/ttyACM1
 UPLOAD_PORT        ?= /dev/ttyUSB0
 
-#Directory used to build files in, contains all the build files, from object files to the final hex file
-#on linux it is best to put an absolute path like /home/username/tmp .
+# Directory used to build files in, contains all the build files, from object
+# files to the final hex file on linux it is best to put an absolute path
+# like /home/username/tmp .
 BUILD_DIR          ?= applet
 
 # This defines whether Liquid_TWI2 support will be built
 LIQUID_TWI2        ?= 0
 
-# this defines if Wire is needed
+# This defines if Wire is needed
 WIRE               ?= 0
 
-# this defines if U8GLIB is needed (may require RELOC_WORKAROUND)
-U8GLIB             ?= 1
+# This defines if Tone is needed (i.e SPEAKER is defined in Configuration.h)
+# Disabling this (and SPEAKER) saves approximatively 350 bytes of memory.
+TONE               ?= 1
 
-# this defines whether to include the Trinamic TMCStepper library
-TMC                ?= 1
+# This defines if U8GLIB is needed (may require RELOC_WORKAROUND)
+U8GLIB             ?= 0
 
-# this defines whether to include the AdaFruit NeoPixel library
+# This defines whether to include the Trinamic TMCStepper library
+TMC                ?= 0
+
+# This defines whether to include the AdaFruit NeoPixel library
 NEOPIXEL           ?= 0
 
 ############
@@ -208,7 +235,8 @@ else ifeq ($(HARDWARE_MOTHERBOARD),1119)
 else ifeq ($(HARDWARE_MOTHERBOARD),1120)
 # Ultimaker (Older electronics. Pre 1.5.4. This is rare)
 else ifeq ($(HARDWARE_MOTHERBOARD),1121)
-  MCU ?= atmega1280
+  MCU              ?= atmega1280
+  PROG_MCU         ?= m1280
 
 # Azteeg X3
 else ifeq ($(HARDWARE_MOTHERBOARD),1122)
@@ -350,9 +378,11 @@ else ifeq ($(HARDWARE_MOTHERBOARD),1320)
 # Minitronics v1.0/1.1
 else ifeq ($(HARDWARE_MOTHERBOARD),1400)
   MCU              ?= atmega1281
+  PROG_MCU         ?= m1281
 # Silvergate v1.0
 else ifeq ($(HARDWARE_MOTHERBOARD),1401)
   MCU              ?= atmega1281
+  PROG_MCU         ?= m1281
 
 #
 # Sanguinololu and Derivatives - ATmega644P, ATmega1284P
@@ -362,46 +392,57 @@ else ifeq ($(HARDWARE_MOTHERBOARD),1401)
 else ifeq ($(HARDWARE_MOTHERBOARD),1500)
   HARDWARE_VARIANT ?= Sanguino
   MCU              ?= atmega644p
+  PROG_MCU         ?= m644p
 # Sanguinololu 1.2 and above
 else ifeq ($(HARDWARE_MOTHERBOARD),1501)
   HARDWARE_VARIANT ?= Sanguino
   MCU              ?= atmega644p
+  PROG_MCU         ?= m644p
 # Melzi
 else ifeq ($(HARDWARE_MOTHERBOARD),1502)
   HARDWARE_VARIANT ?= Sanguino
   MCU              ?= atmega644p
+  PROG_MCU         ?= m644p
 # Melzi V2.0
 else ifeq ($(HARDWARE_MOTHERBOARD),1503)
   HARDWARE_VARIANT ?= Sanguino
   MCU              ?= atmega1284p
+  PROG_MCU         ?= m1284p
 # Melzi with ATmega1284 (MaKr3d version)
 else ifeq ($(HARDWARE_MOTHERBOARD),1504)
   HARDWARE_VARIANT ?= Sanguino
   MCU              ?= atmega1284p
+  PROG_MCU         ?= m1284p
 # Melzi Creality3D board (for CR-10 etc)
 else ifeq ($(HARDWARE_MOTHERBOARD),1505)
   HARDWARE_VARIANT ?= Sanguino
   MCU              ?= atmega1284p
+  PROG_MCU         ?= m1284p
 # Melzi Malyan M150 board
 else ifeq ($(HARDWARE_MOTHERBOARD),1506)
   HARDWARE_VARIANT ?= Sanguino
   MCU              ?= atmega1284p
+  PROG_MCU         ?= m1284p
 # Tronxy X5S
 else ifeq ($(HARDWARE_MOTHERBOARD),1507)
   HARDWARE_VARIANT ?= Sanguino
   MCU              ?= atmega1284p
+  PROG_MCU         ?= m1284p
 # STB V1.1
 else ifeq ($(HARDWARE_MOTHERBOARD),1508)
   HARDWARE_VARIANT ?= Sanguino
   MCU              ?= atmega1284p
+  PROG_MCU         ?= m1284p
 # Azteeg X1
 else ifeq ($(HARDWARE_MOTHERBOARD),1509)
   HARDWARE_VARIANT ?= Sanguino
   MCU              ?= atmega1284p
+  PROG_MCU         ?= m1284p
 # Anet 1.0 (Melzi clone)
 else ifeq ($(HARDWARE_MOTHERBOARD),1510)
   HARDWARE_VARIANT ?= Sanguino
   MCU              ?= atmega1284p
+  PROG_MCU         ?= m1284p
 
 #
 # Other ATmega644P, ATmega644, ATmega1284P
@@ -411,50 +452,61 @@ else ifeq ($(HARDWARE_MOTHERBOARD),1510)
 else ifeq ($(HARDWARE_MOTHERBOARD),1600)
   HARDWARE_VARIANT ?= Sanguino
   MCU              ?= atmega644p
+  PROG_MCU         ?= m644p
 # Gen3+
 else ifeq ($(HARDWARE_MOTHERBOARD),1601)
   HARDWARE_VARIANT ?= Sanguino
   MCU              ?= atmega644p
+  PROG_MCU         ?= m644p
 # Gen6
 else ifeq ($(HARDWARE_MOTHERBOARD),1602)
   HARDWARE_VARIANT ?= Gen6
   MCU              ?= atmega644p
+  PROG_MCU         ?= m644p
 # Gen6 deluxe
 else ifeq ($(HARDWARE_MOTHERBOARD),1603)
   HARDWARE_VARIANT ?= Gen6
   MCU              ?= atmega644p
+  PROG_MCU         ?= m644p
 # Gen7 custom (Alfons3 Version)
 else ifeq ($(HARDWARE_MOTHERBOARD),1604)
   HARDWARE_VARIANT ?= Gen7
   MCU              ?= atmega644
+  PROG_MCU         ?= m644
   F_CPU            ?= 20000000
 # Gen7 v1.1, v1.2
 else ifeq ($(HARDWARE_MOTHERBOARD),1605)
   HARDWARE_VARIANT ?= Gen7
   MCU              ?= atmega644p
+  PROG_MCU         ?= m644p
   F_CPU            ?= 20000000
 # Gen7 v1.3
 else ifeq ($(HARDWARE_MOTHERBOARD),1606)
   HARDWARE_VARIANT ?= Gen7
   MCU              ?= atmega644p
+  PROG_MCU         ?= m644p
   F_CPU            ?= 20000000
 # Gen7 v1.4
 else ifeq ($(HARDWARE_MOTHERBOARD),1607)
   HARDWARE_VARIANT ?= Gen7
   MCU              ?= atmega1284p
+  PROG_MCU         ?= m1284p
   F_CPU            ?= 20000000
 # Alpha OMCA board
 else ifeq ($(HARDWARE_MOTHERBOARD),1608)
   HARDWARE_VARIANT ?= SanguinoA
   MCU              ?= atmega644
+  PROG_MCU         ?= m644
 # Final OMCA board
 else ifeq ($(HARDWARE_MOTHERBOARD),1609)
   HARDWARE_VARIANT ?= Sanguino
   MCU              ?= atmega644p
+  PROG_MCU         ?= m644p
 # Sethi 3D_1
 else ifeq ($(HARDWARE_MOTHERBOARD),1610)
   HARDWARE_VARIANT ?= Sanguino
   MCU              ?= atmega644p
+  PROG_MCU         ?= m644p
 
 #
 # Teensyduino - AT90USB1286, AT90USB1286P
@@ -464,51 +516,60 @@ else ifeq ($(HARDWARE_MOTHERBOARD),1610)
 else ifeq ($(HARDWARE_MOTHERBOARD),1700)
   HARDWARE_VARIANT ?= Teensy
   MCU              ?= at90usb1286
+  PROG_MCU         ?= usb1286
 # Printrboard (AT90USB1286)
 else ifeq ($(HARDWARE_MOTHERBOARD),1701)
   HARDWARE_VARIANT ?= Teensy
   MCU              ?= at90usb1286
+  PROG_MCU         ?= usb1286
 # Printrboard Revision F (AT90USB1286)
 else ifeq ($(HARDWARE_MOTHERBOARD),1702)
   HARDWARE_VARIANT ?= Teensy
   MCU              ?= at90usb1286
+  PROG_MCU         ?= usb1286
 # Brainwave (AT90USB646)
 else ifeq ($(HARDWARE_MOTHERBOARD),1703)
   HARDWARE_VARIANT ?= Teensy
   MCU              ?= at90usb646
+  PROG_MCU         ?= usb646
 # Brainwave Pro (AT90USB1286)
 else ifeq ($(HARDWARE_MOTHERBOARD),1704)
   HARDWARE_VARIANT ?= Teensy
   MCU              ?= at90usb1286
+  PROG_MCU         ?= usb1286
 # SAV Mk-I (AT90USB1286)
 else ifeq ($(HARDWARE_MOTHERBOARD),1705)
   HARDWARE_VARIANT ?= Teensy
   MCU              ?= at90usb1286
+  PROG_MCU         ?= usb1286
 # Teensy++2.0 (AT90USB1286)
 else ifeq ($(HARDWARE_MOTHERBOARD),1706)
   HARDWARE_VARIANT ?= Teensy
   MCU              ?= at90usb1286
+  PROG_MCU         ?= usb1286
 # 5DPrint D8 Driver Board
 else ifeq ($(HARDWARE_MOTHERBOARD),1707)
   HARDWARE_VARIANT ?= Teensy
   MCU              ?= at90usb1286
+  PROG_MCU         ?= usb1286
 
 # UltiMachine Archim1 (with DRV8825 drivers)
 else ifeq ($(HARDWARE_MOTHERBOARD),3023)
   HARDWARE_VARIANT ?= archim
   MCPU              = cortex-m3
-  F_CPU             = 84000000L
+  F_CPU             = 84000000
   IS_MCU            = 0
 # UltiMachine Archim2 (with TMC2130 drivers)
 else ifeq ($(HARDWARE_MOTHERBOARD),3024)
   HARDWARE_VARIANT ?= archim
   MCPU              = cortex-m3
-  F_CPU             = 84000000L
+  F_CPU             = 84000000
   IS_MCU            = 0
 endif
 
 # Be sure to regenerate speed_lookuptable.h with create_speed_lookuptable.py
 # if you are setting this to something other than 16MHz
+# Do not put the UL suffix, it's done later on.
 # Set to 16Mhz if not yet set.
 F_CPU ?= 16000000
 
@@ -518,7 +579,8 @@ IS_MCU ?= 1
 ifeq ($(IS_MCU),1)
   # Set to arduino, ATmega2560 if not yet set.
   HARDWARE_VARIANT ?= arduino
-  MCU ?= atmega2560
+  MCU              ?= atmega2560
+  PROG_MCU         ?= m2560
 
   TOOL_PREFIX = avr
   MCU_FLAGS   = -mmcu=$(MCU)
@@ -549,27 +611,36 @@ VPATH += $(BUILD_DIR)
 VPATH += $(HARDWARE_SRC)
 
 ifeq ($(HARDWARE_VARIANT), $(filter $(HARDWARE_VARIANT),arduino Teensy Sanguino))
-VPATH += $(ARDUINO_INSTALL_DIR)/hardware/marlin/avr/libraries/LiquidCrystal/src
-VPATH += $(ARDUINO_INSTALL_DIR)/hardware/marlin/avr/libraries/SPI
+  # Old libraries (avr-core 1.6.21 < / Arduino < 1.6.8)
+  VPATH += $(ARDUINO_INSTALL_DIR)/hardware/arduino/avr/libraries/SPI
+  # New libraries (avr-core >= 1.6.21 / Arduino >= 1.6.8)
+  VPATH += $(ARDUINO_INSTALL_DIR)/hardware/arduino/avr/libraries/SPI/src
 endif
 
 ifeq ($(IS_MCU),1)
   VPATH += $(ARDUINO_INSTALL_DIR)/hardware/arduino/avr/cores/arduino
 
+  # Old libraries (avr-core 1.6.21 < / Arduino < 1.6.8)
   VPATH += $(ARDUINO_INSTALL_DIR)/hardware/arduino/avr/libraries/SPI
+  VPATH += $(ARDUINO_INSTALL_DIR)/hardware/arduino/avr/libraries/SoftwareSerial
+  # New libraries (avr-core >= 1.6.21 / Arduino >= 1.6.8)
   VPATH += $(ARDUINO_INSTALL_DIR)/hardware/arduino/avr/libraries/SPI/src
   VPATH += $(ARDUINO_INSTALL_DIR)/hardware/arduino/avr/libraries/SoftwareSerial/src
 endif
 
 VPATH += $(ARDUINO_INSTALL_DIR)/libraries/LiquidCrystal/src
+
 ifeq ($(LIQUID_TWI2), 1)
-VPATH += $(ARDUINO_INSTALL_DIR)/libraries/Wire
-VPATH += $(ARDUINO_INSTALL_DIR)/libraries/Wire/utility
-VPATH += $(ARDUINO_INSTALL_DIR)/libraries/LiquidTWI2
+  WIRE   = 1
+  VPATH += $(ARDUINO_INSTALL_DIR)/libraries/LiquidTWI2
 endif
 ifeq ($(WIRE), 1)
-VPATH += $(ARDUINO_INSTALL_DIR)/libraries/Wire
-VPATH += $(ARDUINO_INSTALL_DIR)/libraries/Wire/utility
+  # Old libraries (avr-core 1.6.21 / Arduino < 1.6.8)
+  VPATH += $(ARDUINO_INSTALL_DIR)/hardware/arduino/avr/libraries/Wire
+  VPATH += $(ARDUINO_INSTALL_DIR)/hardware/arduino/avr/libraries/Wire/utility
+  # New libraries (avr-core >= 1.6.21 / Arduino >= 1.6.8)
+  VPATH += $(ARDUINO_INSTALL_DIR)/hardware/arduino/avr/libraries/Wire/src
+  VPATH += $(ARDUINO_INSTALL_DIR)/hardware/arduino/avr/libraries/Wire/src/utility
 endif
 ifeq ($(NEOPIXEL), 1)
 VPATH += $(ARDUINO_INSTALL_DIR)/libraries/Adafruit_NeoPixel
@@ -641,13 +712,23 @@ ifeq ($(WIRE), 1)
   LIB_CXXSRC += Wire.cpp
 endif
 
+ifeq ($(TONE), 1)
+  LIB_CXXSRC += Tone.cpp
+endif
+
 ifeq ($(U8GLIB), 1)
   LIB_CXXSRC += U8glib.cpp
-  LIB_SRC += u8g_ll_api.c u8g_bitmap.c u8g_clip.c u8g_com_null.c u8g_delay.c u8g_page.c u8g_pb.c u8g_pb16h1.c u8g_rect.c u8g_state.c u8g_font.c u8g_font_6x13.c u8g_font_04b_03.c u8g_font_5x8.c
+  LIB_SRC += u8g_ll_api.c u8g_bitmap.c u8g_clip.c u8g_com_null.c u8g_delay.c \
+    u8g_page.c u8g_pb.c u8g_pb16h1.c u8g_rect.c u8g_state.c u8g_font.c \
+    u8g_font_6x13.c u8g_font_04b_03.c u8g_font_5x8.c
 endif
 
 ifeq ($(TMC), 1)
-  LIB_CXXSRC += TMCStepper.cpp COOLCONF.cpp DRV_STATUS.cpp IHOLD_IRUN.cpp CHOPCONF.cpp GCONF.cpp PWMCONF.cpp DRV_CONF.cpp DRVCONF.cpp DRVCTRL.cpp DRVSTATUS.cpp ENCMODE.cpp RAMP_STAT.cpp SGCSCONF.cpp SHORT_CONF.cpp SMARTEN.cpp SW_MODE.cpp SW_SPI.cpp TMC2130Stepper.cpp TMC2208Stepper.cpp TMC2209Stepper.cpp TMC2660Stepper.cpp TMC5130Stepper.cpp TMC5160Stepper.cpp
+  LIB_CXXSRC += TMCStepper.cpp COOLCONF.cpp DRV_STATUS.cpp IHOLD_IRUN.cpp \
+    CHOPCONF.cpp GCONF.cpp PWMCONF.cpp DRV_CONF.cpp DRVCONF.cpp DRVCTRL.cpp \
+    DRVSTATUS.cpp ENCMODE.cpp RAMP_STAT.cpp SGCSCONF.cpp SHORT_CONF.cpp \
+    SMARTEN.cpp SW_MODE.cpp SW_SPI.cpp TMC2130Stepper.cpp TMC2208Stepper.cpp \
+    TMC2209Stepper.cpp TMC2660Stepper.cpp TMC5130Stepper.cpp TMC5160Stepper.cpp
 endif
 
 ifeq ($(RELOC_WORKAROUND), 1)
@@ -689,17 +770,23 @@ REMOVE = rm -f
 MV = mv -f
 
 # Place -D or -U options here
-CDEFS    = -DF_CPU=$(F_CPU) ${addprefix -D , $(DEFINES)} -DARDUINO=$(ARDUINO_VERSION)
+CDEFS    = -DF_CPU=$(F_CPU)UL ${addprefix -D , $(DEFINES)} -DARDUINO=$(ARDUINO_VERSION)
 CXXDEFS  = $(CDEFS)
 
 ifeq ($(HARDWARE_VARIANT), Teensy)
-  CDEFS  += -DUSB_SERIAL
+  CDEFS      += -DUSB_SERIAL
   LIB_SRC    += usb.c pins_teensy.c
   LIB_CXXSRC += usb_api.cpp
 
 else ifeq ($(HARDWARE_VARIANT), archim)
-  CDEFS      += -DARDUINO_SAM_ARCHIM -DARDUINO_ARCH_SAM -D__SAM3X8E__ -DUSB_VID=0x27b1 -DUSB_PID=0x0001 -DUSBCON '-DUSB_MANUFACTURER="UltiMachine"' '-DUSB_PRODUCT_STRING="Archim"'
-  LIB_CXXSRC += variant.cpp IPAddress.cpp Reset.cpp RingBuffer.cpp Stream.cpp UARTClass.cpp  USARTClass.cpp abi.cpp new.cpp watchdog.cpp CDC.cpp PluggableUSB.cpp USBCore.cpp
+  CDEFS      += -DARDUINO_SAM_ARCHIM -DARDUINO_ARCH_SAM -D__SAM3X8E__
+  CDEFS      += -DUSB_VID=0x27B1 -DUSB_PID=0x0001 -DUSBCON
+  CDEFS      += '-DUSB_MANUFACTURER="UltiMachine"' '-DUSB_PRODUCT_STRING="Archim"'
+
+  LIB_CXXSRC += variant.cpp IPAddress.cpp Reset.cpp RingBuffer.cpp Stream.cpp \
+    UARTClass.cpp  USARTClass.cpp abi.cpp new.cpp watchdog.cpp CDC.cpp \
+    PluggableUSB.cpp USBCore.cpp
+
   LIB_SRC    += cortex_handlers.c iar_calls_sam3.c syscalls_sam3.c dtostrf.c itoa.c
 
   ifeq ($(U8GLIB), 1)
@@ -725,16 +812,20 @@ CTUNING = -fsigned-char -funsigned-bitfields -fno-exceptions \
 ifneq ($(HARDWARE_MOTHERBOARD),)
   CTUNING += -DMOTHERBOARD=${HARDWARE_MOTHERBOARD}
 endif
+
 #CEXTRA = -Wa,-adhlns=$(<:.c=.lst)
 CXXEXTRA = -fno-use-cxa-atexit -fno-threadsafe-statics -fno-rtti
 CFLAGS := $(CDEBUG) $(CDEFS) $(CINCS) -O$(OPT) $(CEXTRA)   $(CTUNING) $(CSTANDARD)
 CXXFLAGS :=         $(CDEFS) $(CINCS) -O$(OPT) $(CXXEXTRA) $(CTUNING) $(CXXSTANDARD)
 ASFLAGS :=          $(CDEFS)
 #ASFLAGS = -Wa,-adhlns=$(<:.S=.lst),-gstabs
+
 ifeq ($(HARDWARE_VARIANT), archim)
   LD_PREFIX = -Wl,--gc-sections,-Map,Marlin.ino.map,--cref,--check-sections,--entry=Reset_Handler,--unresolved-symbols=report-all,--warn-common,--warn-section-align
   LD_SUFFIX = $(LDLIBS)
-  LDFLAGS   = -lm -T$(LDSCRIPT) -u _sbrk -u link -u _close -u _fstat -u _isatty -u _lseek -u _read -u _write -u _exit -u kill -u _getpid
+
+  LDFLAGS   = -lm -T$(LDSCRIPT) -u _sbrk -u link -u _close -u _fstat -u _isatty
+  LDFLAGS  += -u _lseek -u _read -u _write -u _exit -u kill -u _getpid
 else
   LD_PREFIX = -Wl,--gc-sections,--relax
   LDFLAGS   = -lm
@@ -750,7 +841,7 @@ else
   AVRDUDE_CONF = $(ARDUINO_INSTALL_DIR)/hardware/tools/avr/etc/avrdude.conf
 endif
 AVRDUDE_FLAGS = -D -C$(AVRDUDE_CONF) \
-  -p$(MCU) -P$(AVRDUDE_PORT) -c$(AVRDUDE_PROGRAMMER) \
+  -p$(PROG_MCU) -P$(AVRDUDE_PORT) -c$(AVRDUDE_PROGRAMMER) \
   -b$(UPLOAD_RATE)
 
 # Since Marlin 2.0, the source files may be distributed into several
@@ -851,7 +942,7 @@ extcoff: $(TARGET).elf
 
 .elf.eep:
 	-$(OBJCOPY) -j .eeprom --set-section-flags=.eeprom="alloc,load" \
-    --change-section-lma .eeprom=0 -O $(FORMAT) $< $@
+	  --change-section-lma .eeprom=0 -O $(FORMAT) $< $@
 
 # Create extended listing file from ELF output file.
 .elf.lss:
@@ -865,7 +956,7 @@ extcoff: $(TARGET).elf
 
 $(BUILD_DIR)/$(TARGET).elf: $(OBJ) Configuration.h
 	$(Pecho) "  CXX   $@"
-	$P $(CC) $(LD_PREFIX) $(ALL_CXXFLAGS) -o $@ -L. $(OBJ) $(LDFLAGS) $(LD_SUFFIX)
+	$P $(CXX) $(LD_PREFIX) $(ALL_CXXFLAGS) -o $@ -L. $(OBJ) $(LDFLAGS) $(LD_SUFFIX)
 
 # Object files that were found in "src" will be stored in $(BUILD_DIR)
 # in directories that mirror the structure of "src"

Marlin/Version.h

@@ -28,7 +28,7 @@
 /**
  * Marlin release version identifier
  */
-//#define SHORT_BUILD_VERSION "bugfix-2.0.x"
+//#define SHORT_BUILD_VERSION "2.0.7.1"
 
 /**
  * Verbose version identifier which should contain a reference to the location
@@ -41,7 +41,7 @@
  * here we define this default string as the date where the latest release
  * version was tagged.
  */
-//#define STRING_DISTRIBUTION_DATE "2019-07-10"
+//#define STRING_DISTRIBUTION_DATE "2020-07-09"
 
 /**
  * Defines a generic printer name to be output to the LCD after booting Marlin.

Marlin/src/HAL/AVR/HAL.h

@@ -120,6 +120,8 @@ void HAL_init();
 inline void HAL_clear_reset_source() { MCUSR = 0; }
 inline uint8_t HAL_get_reset_source() { return MCUSR; }
 
+inline void HAL_reboot() {}  // reboot the board or restart the bootloader
+
 #pragma GCC diagnostic push
 #pragma GCC diagnostic ignored "-Wunused-function"
 extern "C" {

Marlin/src/HAL/AVR/fast_pwm.cpp

@@ -185,8 +185,8 @@ void set_pwm_frequency(const pin_t pin, int f_desired) {
         res_temp_phase_correct = rtf / 2;
       }
 
-      LIMIT(res_temp_fast, 1u, size);
-      LIMIT(res_temp_phase_correct, 1u, size);
+      LIMIT(res_temp_fast, 1U, size);
+      LIMIT(res_temp_phase_correct, 1U, size);
       // Calculate frequencies of test prescaler and resolution values
       const int f_temp_fast = (F_CPU) / (prescaler[i] * (1 + res_temp_fast)),
                 f_temp_phase_correct = (F_CPU) / (2 * prescaler[i] * res_temp_phase_correct),

Marlin/src/HAL/DUE/HAL.cpp

@@ -19,9 +19,7 @@
  */
 
 /**
- * Description: HAL for Arduino Due and compatible (SAM3X8E)
- *
- * For ARDUINO_ARCH_SAM
+ * HAL for Arduino Due and compatible (SAM3X8E)
  */
 
 #ifdef ARDUINO_ARCH_SAM

Marlin/src/HAL/DUE/HAL.h

@@ -22,9 +22,7 @@
 #pragma once
 
 /**
- * Description: HAL for Arduino Due and compatible (SAM3X8E)
- *
- * For ARDUINO_ARCH_SAM
+ * HAL for Arduino Due and compatible (SAM3X8E)
  */
 
 #define CPU_32_BIT
@@ -107,13 +105,15 @@ void sei();                     // Enable interrupts
 void HAL_clear_reset_source();  // clear reset reason
 uint8_t HAL_get_reset_source(); // get reset reason
 
+inline void HAL_reboot() {}  // reboot the board or restart the bootloader
+
 //
 // ADC
 //
 extern uint16_t HAL_adc_result;     // result of last ADC conversion
 
 #ifndef analogInputToDigitalPin
-  #define analogInputToDigitalPin(p) ((p < 12u) ? (p) + 54u : -1)
+  #define analogInputToDigitalPin(p) ((p < 12U) ? (p) + 54U : -1)
 #endif
 
 #define HAL_ANALOG_SELECT(ch)

Marlin/src/HAL/DUE/HAL_SPI.cpp

@@ -30,7 +30,7 @@
  */
 
 /**
- * Description: HAL for Arduino Due and compatible (SAM3X8E)
+ * HAL for Arduino Due and compatible (SAM3X8E)
  *
  * For ARDUINO_ARCH_SAM
  */

Marlin/src/HAL/DUE/eeprom_flash.cpp

@@ -60,7 +60,7 @@
 #define EEPROMSize     4096
 #define PagesPerGroup   128
 #define GroupCount        2
-#define PageSize        256u
+#define PageSize        256U
 
  /* Flash storage */
 typedef struct FLASH_SECTOR {

Marlin/src/HAL/DUE/timers.cpp

@@ -21,9 +21,7 @@
  */
 
 /**
- * Description: HAL for Arduino Due and compatible (SAM3X8E)
- *
- * For ARDUINO_ARCH_SAM
+ * HAL Timers for Arduino Due and compatible (SAM3X8E)
  */
 
 #ifdef ARDUINO_ARCH_SAM

Marlin/src/HAL/DUE/timers.h

@@ -21,9 +21,7 @@
 #pragma once
 
 /**
- * HAL for Arduino Due and compatible (SAM3X8E)
- *
- * For ARDUINO_ARCH_SAM
+ * HAL Timers for Arduino Due and compatible (SAM3X8E)
  */
 
 #include <stdint.h>

Marlin/src/HAL/DUE/upload_extra_script.py

@@ -14,5 +14,5 @@ if current_OS == 'Windows':
 
 	# Use bossac.exe on Windows
 	env.Replace(
-	    UPLOADCMD="bossac --info --unlock --write --verify --reset --erase -U false --boot"
+	    UPLOADCMD="bossac --info --unlock --write --verify --reset --erase -U false --boot $SOURCE"
 	)

Marlin/src/HAL/DUE/usb/compiler.h

@@ -609,37 +609,37 @@ typedef struct
 #   define clz(u)              ((u) ? __CLZ(u) : 32)
 #else
 #   define clz(u)              (((u) == 0)          ? 32 : \
-                                ((u) & (1ul << 31)) ?  0 : \
-                                ((u) & (1ul << 30)) ?  1 : \
-                                ((u) & (1ul << 29)) ?  2 : \
-                                ((u) & (1ul << 28)) ?  3 : \
-                                ((u) & (1ul << 27)) ?  4 : \
-                                ((u) & (1ul << 26)) ?  5 : \
-                                ((u) & (1ul << 25)) ?  6 : \
-                                ((u) & (1ul << 24)) ?  7 : \
-                                ((u) & (1ul << 23)) ?  8 : \
-                                ((u) & (1ul << 22)) ?  9 : \
-                                ((u) & (1ul << 21)) ? 10 : \
-                                ((u) & (1ul << 20)) ? 11 : \
-                                ((u) & (1ul << 19)) ? 12 : \
-                                ((u) & (1ul << 18)) ? 13 : \
-                                ((u) & (1ul << 17)) ? 14 : \
-                                ((u) & (1ul << 16)) ? 15 : \
-                                ((u) & (1ul << 15)) ? 16 : \
-                                ((u) & (1ul << 14)) ? 17 : \
-                                ((u) & (1ul << 13)) ? 18 : \
-                                ((u) & (1ul << 12)) ? 19 : \
-                                ((u) & (1ul << 11)) ? 20 : \
-                                ((u) & (1ul << 10)) ? 21 : \
-                                ((u) & (1ul <<  9)) ? 22 : \
-                                ((u) & (1ul <<  8)) ? 23 : \
-                                ((u) & (1ul <<  7)) ? 24 : \
-                                ((u) & (1ul <<  6)) ? 25 : \
-                                ((u) & (1ul <<  5)) ? 26 : \
-                                ((u) & (1ul <<  4)) ? 27 : \
-                                ((u) & (1ul <<  3)) ? 28 : \
-                                ((u) & (1ul <<  2)) ? 29 : \
-                                ((u) & (1ul <<  1)) ? 30 : \
+                                ((u) & (1UL << 31)) ?  0 : \
+                                ((u) & (1UL << 30)) ?  1 : \
+                                ((u) & (1UL << 29)) ?  2 : \
+                                ((u) & (1UL << 28)) ?  3 : \
+                                ((u) & (1UL << 27)) ?  4 : \
+                                ((u) & (1UL << 26)) ?  5 : \
+                                ((u) & (1UL << 25)) ?  6 : \
+                                ((u) & (1UL << 24)) ?  7 : \
+                                ((u) & (1UL << 23)) ?  8 : \
+                                ((u) & (1UL << 22)) ?  9 : \
+                                ((u) & (1UL << 21)) ? 10 : \
+                                ((u) & (1UL << 20)) ? 11 : \
+                                ((u) & (1UL << 19)) ? 12 : \
+                                ((u) & (1UL << 18)) ? 13 : \
+                                ((u) & (1UL << 17)) ? 14 : \
+                                ((u) & (1UL << 16)) ? 15 : \
+                                ((u) & (1UL << 15)) ? 16 : \
+                                ((u) & (1UL << 14)) ? 17 : \
+                                ((u) & (1UL << 13)) ? 18 : \
+                                ((u) & (1UL << 12)) ? 19 : \
+                                ((u) & (1UL << 11)) ? 20 : \
+                                ((u) & (1UL << 10)) ? 21 : \
+                                ((u) & (1UL <<  9)) ? 22 : \
+                                ((u) & (1UL <<  8)) ? 23 : \
+                                ((u) & (1UL <<  7)) ? 24 : \
+                                ((u) & (1UL <<  6)) ? 25 : \
+                                ((u) & (1UL <<  5)) ? 26 : \
+                                ((u) & (1UL <<  4)) ? 27 : \
+                                ((u) & (1UL <<  3)) ? 28 : \
+                                ((u) & (1UL <<  2)) ? 29 : \
+                                ((u) & (1UL <<  1)) ? 30 : \
                                 31)
 #endif
 #endif
@@ -654,38 +654,38 @@ typedef struct
 #if (defined __GNUC__) || (defined __CC_ARM)
 #   define ctz(u)              ((u) ? __builtin_ctz(u) : 32)
 #else
-#   define ctz(u)              ((u) & (1ul <<  0) ?  0 : \
-                                (u) & (1ul <<  1) ?  1 : \
-                                (u) & (1ul <<  2) ?  2 : \
-                                (u) & (1ul <<  3) ?  3 : \
-                                (u) & (1ul <<  4) ?  4 : \
-                                (u) & (1ul <<  5) ?  5 : \
-                                (u) & (1ul <<  6) ?  6 : \
-                                (u) & (1ul <<  7) ?  7 : \
-                                (u) & (1ul <<  8) ?  8 : \
-                                (u) & (1ul <<  9) ?  9 : \
-                                (u) & (1ul << 10) ? 10 : \
-                                (u) & (1ul << 11) ? 11 : \
-                                (u) & (1ul << 12) ? 12 : \
-                                (u) & (1ul << 13) ? 13 : \
-                                (u) & (1ul << 14) ? 14 : \
-                                (u) & (1ul << 15) ? 15 : \
-                                (u) & (1ul << 16) ? 16 : \
-                                (u) & (1ul << 17) ? 17 : \
-                                (u) & (1ul << 18) ? 18 : \
-                                (u) & (1ul << 19) ? 19 : \
-                                (u) & (1ul << 20) ? 20 : \
-                                (u) & (1ul << 21) ? 21 : \
-                                (u) & (1ul << 22) ? 22 : \
-                                (u) & (1ul << 23) ? 23 : \
-                                (u) & (1ul << 24) ? 24 : \
-                                (u) & (1ul << 25) ? 25 : \
-                                (u) & (1ul << 26) ? 26 : \
-                                (u) & (1ul << 27) ? 27 : \
-                                (u) & (1ul << 28) ? 28 : \
-                                (u) & (1ul << 29) ? 29 : \
-                                (u) & (1ul << 30) ? 30 : \
-                                (u) & (1ul << 31) ? 31 : \
+#   define ctz(u)              ((u) & (1UL <<  0) ?  0 : \
+                                (u) & (1UL <<  1) ?  1 : \
+                                (u) & (1UL <<  2) ?  2 : \
+                                (u) & (1UL <<  3) ?  3 : \
+                                (u) & (1UL <<  4) ?  4 : \
+                                (u) & (1UL <<  5) ?  5 : \
+                                (u) & (1UL <<  6) ?  6 : \
+                                (u) & (1UL <<  7) ?  7 : \
+                                (u) & (1UL <<  8) ?  8 : \
+                                (u) & (1UL <<  9) ?  9 : \
+                                (u) & (1UL << 10) ? 10 : \
+                                (u) & (1UL << 11) ? 11 : \
+                                (u) & (1UL << 12) ? 12 : \
+                                (u) & (1UL << 13) ? 13 : \
+                                (u) & (1UL << 14) ? 14 : \
+                                (u) & (1UL << 15) ? 15 : \
+                                (u) & (1UL << 16) ? 16 : \
+                                (u) & (1UL << 17) ? 17 : \
+                                (u) & (1UL << 18) ? 18 : \
+                                (u) & (1UL << 19) ? 19 : \
+                                (u) & (1UL << 20) ? 20 : \
+                                (u) & (1UL << 21) ? 21 : \
+                                (u) & (1UL << 22) ? 22 : \
+                                (u) & (1UL << 23) ? 23 : \
+                                (u) & (1UL << 24) ? 24 : \
+                                (u) & (1UL << 25) ? 25 : \
+                                (u) & (1UL << 26) ? 26 : \
+                                (u) & (1UL << 27) ? 27 : \
+                                (u) & (1UL << 28) ? 28 : \
+                                (u) & (1UL << 29) ? 29 : \
+                                (u) & (1UL << 30) ? 30 : \
+                                (u) & (1UL << 31) ? 31 : \
                                 32)
 #endif
 #endif

Marlin/src/HAL/ESP32/HAL.h

@@ -20,7 +20,7 @@
 #pragma once
 
 /**
- * Description: HAL for Espressif ESP32 WiFi
+ * HAL for Espressif ESP32 WiFi
  */
 
 #define CPU_32_BIT
@@ -96,6 +96,8 @@ void HAL_clear_reset_source();
 // reset reason
 uint8_t HAL_get_reset_source();
 
+inline void HAL_reboot() {}  // reboot the board or restart the bootloader
+
 void _delay_ms(int delay);
 
 #pragma GCC diagnostic push
@@ -155,14 +157,14 @@ FORCE_INLINE static void DELAY_CYCLES(uint32_t x) {
 
   if (stop >= start) {
     // no overflow, so only loop while in between start and stop:
-    // 0x00000000 -----------------start****stop-- 0xffffffff
+    // 0x00000000 -----------------start****stop-- 0xFFFFFFFF
     while (ccount >= start && ccount < stop) {
       __asm__ __volatile__ ( "rsr     %0, ccount" : "=a" (ccount) );
     }
   }
   else {
     // stop did overflow, so only loop while outside of stop and start:
-    // 0x00000000 **stop-------------------start** 0xffffffff
+    // 0x00000000 **stop-------------------start** 0xFFFFFFFF
     while (ccount >= start || ccount < stop) {
       __asm__ __volatile__ ( "rsr     %0, ccount" : "=a" (ccount) );
     }

Marlin/src/HAL/LINUX/HAL.h

@@ -101,6 +101,8 @@ uint16_t HAL_adc_get_result();
 inline void HAL_clear_reset_source(void) {}
 inline uint8_t HAL_get_reset_source(void) { return RST_POWER_ON; }
 
+inline void HAL_reboot() {}  // reboot the board or restart the bootloader
+
 /* ---------------- Delay in cycles */
 FORCE_INLINE static void DELAY_CYCLES(uint64_t x) {
   Clock::delayCycles(x);

Marlin/src/HAL/LPC1768/HAL.h

@@ -200,6 +200,8 @@ void set_pwm_duty(const pin_t pin, const uint16_t v, const uint16_t v_size=255,
 void HAL_clear_reset_source(void);
 uint8_t HAL_get_reset_source(void);
 
+inline void HAL_reboot() {}  // reboot the board or restart the bootloader
+
 // Add strcmp_P if missing
 #ifndef strcmp_P
   #define strcmp_P(a, b) strcmp((a), (b))

Marlin/src/HAL/SAMD51/HAL.h

@@ -88,6 +88,8 @@ typedef int8_t pin_t;
 void HAL_clear_reset_source();  // clear reset reason
 uint8_t HAL_get_reset_source(); // get reset reason
 
+inline void HAL_reboot() {}  // reboot the board or restart the bootloader
+
 //
 // ADC
 //

Marlin/src/HAL/SAMD51/QSPIFlash.cpp

@@ -26,7 +26,7 @@
 
 #include "QSPIFlash.h"
 
-#define INVALID_ADDR    0xffffffff
+#define INVALID_ADDR    0xFFFFFFFF
 #define SECTOR_OF(a)    (a & ~(SFLASH_SECTOR_SIZE - 1))
 #define OFFSET_OF(a)    (a & (SFLASH_SECTOR_SIZE - 1))
 

Marlin/src/HAL/STM32/HAL.cpp

@@ -63,7 +63,7 @@ uint16_t HAL_adc_result;
 void HAL_init() {
   FastIO_init();
 
-  #if ENABLED(SDSUPPORT) && DISABLED(SDIO_SUPPORT)
+  #if ENABLED(SDSUPPORT) && DISABLED(SDIO_SUPPORT) && (defined(SDSS) && SDSS != -1)
     OUT_WRITE(SDSS, HIGH); // Try to set SDSS inactive before any other SPI users start up
   #endif
 
@@ -122,9 +122,14 @@ extern "C" {
 
 // TODO: Make sure this doesn't cause any delay
 void HAL_adc_start_conversion(const uint8_t adc_pin) { HAL_adc_result = analogRead(adc_pin); }
-
 uint16_t HAL_adc_get_result() { return HAL_adc_result; }
 
+// Reset the system (to initiate a firmware flash)
 void flashFirmware(const int16_t) { NVIC_SystemReset(); }
 
+// Maple Compatibility
+systickCallback_t systick_user_callback;
+void systick_attach_callback(systickCallback_t cb) { systick_user_callback = cb; }
+void HAL_SYSTICK_Callback() { if (systick_user_callback) systick_user_callback(); }
+
 #endif // ARDUINO_ARCH_STM32 && !STM32GENERIC

Marlin/src/HAL/STM32/HAL.h

@@ -134,6 +134,8 @@ void HAL_clear_reset_source();
 // Reset reason
 uint8_t HAL_get_reset_source();
 
+inline void HAL_reboot() {}  // reboot the board or restart the bootloader
+
 void _delay_ms(const int delay);
 
 extern "C" char* _sbrk(int incr);
@@ -177,3 +179,8 @@ uint16_t HAL_adc_get_result();
 
 #define PLATFORM_M997_SUPPORT
 void flashFirmware(const int16_t);
+
+// Maple Compatibility
+typedef void (*systickCallback_t)(void);
+void systick_attach_callback(systickCallback_t cb);
+void HAL_SYSTICK_Callback();

Marlin/src/HAL/STM32/HAL_SPI.cpp

@@ -132,11 +132,9 @@ static SPISettings spiConfig;
    * @details Only configures SS pin since stm32duino creates and initialize the SPI object
    */
   void spiBegin() {
-    #if !PIN_EXISTS(SS)
-      #error "SS_PIN not defined!"
+    #if PIN_EXISTS(SS)
+      OUT_WRITE(SS_PIN, HIGH);
     #endif
-
-    OUT_WRITE(SS_PIN, HIGH);
   }
 
   // Configure SPI for specified SPI speed
@@ -173,9 +171,7 @@ static SPISettings spiConfig;
    * @details
    */
   uint8_t spiRec() {
-    SPI.beginTransaction(spiConfig);
     uint8_t returnByte = SPI.transfer(0xFF);
-    SPI.endTransaction();
     return returnByte;
   }
 
@@ -191,9 +187,7 @@ static SPISettings spiConfig;
   void spiRead(uint8_t* buf, uint16_t nbyte) {
     if (nbyte == 0) return;
     memset(buf, 0xFF, nbyte);
-    SPI.beginTransaction(spiConfig);
     SPI.transfer(buf, nbyte);
-    SPI.endTransaction();
   }
 
   /**
@@ -204,9 +198,7 @@ static SPISettings spiConfig;
    * @details
    */
   void spiSend(uint8_t b) {
-    SPI.beginTransaction(spiConfig);
     SPI.transfer(b);
-    SPI.endTransaction();
   }
 
   /**
@@ -219,10 +211,8 @@ static SPISettings spiConfig;
    */
   void spiSendBlock(uint8_t token, const uint8_t* buf) {
     uint8_t rxBuf[512];
-    SPI.beginTransaction(spiConfig);
     SPI.transfer(token);
     SPI.transfer((uint8_t*)buf, &rxBuf, 512);
-    SPI.endTransaction();
   }
 
 #endif // SOFTWARE_SPI

Marlin/src/HAL/STM32/fastio.h

@@ -63,7 +63,7 @@ void FastIO_init(); // Must be called before using fast io macros
 
 #define _GET_MODE(IO)
 #define _SET_MODE(IO,M)         pinMode(IO, M)
-#define _SET_OUTPUT(IO)         pinMode(IO, OUTPUT)                               /*!< Output Push Pull Mode & GPIO_NOPULL   */
+#define _SET_OUTPUT(IO)         pinMode(IO, OUTPUT)                               //!< Output Push Pull Mode & GPIO_NOPULL
 #define _SET_OUTPUT_OD(IO)      pinMode(IO, OUTPUT_OPEN_DRAIN)
 
 #define WRITE(IO,V)             _WRITE(IO,V)
@@ -73,9 +73,9 @@ void FastIO_init(); // Must be called before using fast io macros
 #define OUT_WRITE(IO,V)         do{ _SET_OUTPUT(IO); WRITE(IO,V); }while(0)
 #define OUT_WRITE_OD(IO,V)      do{ _SET_OUTPUT_OD(IO); WRITE(IO,V); }while(0)
 
-#define SET_INPUT(IO)           _SET_MODE(IO, INPUT)                              /*!< Input Floating Mode                   */
-#define SET_INPUT_PULLUP(IO)    _SET_MODE(IO, INPUT_PULLUP)                       /*!< Input with Pull-up activation         */
-#define SET_INPUT_PULLDOWN(IO)  _SET_MODE(IO, INPUT_PULLDOWN)                     /*!< Input with Pull-down activation       */
+#define SET_INPUT(IO)           _SET_MODE(IO, INPUT)                              //!< Input Floating Mode
+#define SET_INPUT_PULLUP(IO)    _SET_MODE(IO, INPUT_PULLUP)                       //!< Input with Pull-up activation
+#define SET_INPUT_PULLDOWN(IO)  _SET_MODE(IO, INPUT_PULLDOWN)                     //!< Input with Pull-down activation
 #define SET_OUTPUT(IO)          OUT_WRITE(IO, LOW)
 #define SET_PWM(IO)             _SET_MODE(IO, PWM)
 

Marlin/src/HAL/STM32F1/HAL.cpp

@@ -97,6 +97,9 @@ const uint8_t adc_pins[] = {
   #if HAS_TEMP_ADC_0
     TEMP_0_PIN,
   #endif
+  #if HAS_TEMP_ADC_PROBE
+    TEMP_PROBE_PIN,
+  #endif
   #if HAS_HEATED_BED
     TEMP_BED_PIN,
   #endif
@@ -151,6 +154,9 @@ enum TempPinIndex : char {
   #if HAS_TEMP_ADC_0
     TEMP_0,
   #endif
+  #if HAS_TEMP_ADC_PROBE
+    TEMP_PROBE,
+  #endif
   #if HAS_HEATED_BED
     TEMP_BED,
   #endif
@@ -341,6 +347,9 @@ void HAL_adc_start_conversion(const uint8_t adc_pin) {
     #if HAS_TEMP_ADC_0
       case TEMP_0_PIN: pin_index = TEMP_0; break;
     #endif
+    #if HAS_TEMP_ADC_PROBE
+      case TEMP_PROBE_PIN: pin_index = TEMP_PROBE; break;
+    #endif
     #if HAS_HEATED_BED
       case TEMP_BED_PIN: pin_index = TEMP_BED; break;
     #endif

Marlin/src/HAL/STM32F1/HAL.h

@@ -185,6 +185,8 @@ void HAL_clear_reset_source();
 // Reset reason
 uint8_t HAL_get_reset_source();
 
+inline void HAL_reboot() {}  // reboot the board or restart the bootloader
+
 void _delay_ms(const int delay);
 
 #pragma GCC diagnostic push

Marlin/src/HAL/STM32F1/HAL_SPI.cpp

@@ -24,9 +24,6 @@
 /**
  * Software SPI functions originally from Arduino Sd2Card Library
  * Copyright (c) 2009 by William Greiman
- */
-
-/**
  * Adapted to the STM32F1 HAL
  */
 
@@ -113,7 +110,7 @@ void spiInit(uint8_t spiRate) {
  * @details
  */
 uint8_t spiRec() {
-  uint8_t returnByte = SPI.transfer(ff);
+  uint8_t returnByte = SPI.transfer(0xFF);
   return returnByte;
 }
 
@@ -157,7 +154,7 @@ void spiSendBlock(uint8_t token, const uint8_t* buf) {
 #if ENABLED(SPI_EEPROM)
 
 // Read single byte from specified SPI channel
-uint8_t spiRec(uint32_t chan) { return SPI.transfer(ff); }
+uint8_t spiRec(uint32_t chan) { return SPI.transfer(0xFF); }
 
 // Write single byte to specified SPI channel
 void spiSend(uint32_t chan, byte b) { SPI.send(b); }

Marlin/src/HAL/STM32F1/eeprom_bl24cxx.cpp

@@ -25,6 +25,8 @@
  * with simple implementations supplied by Marlin.
  */
 
+#ifdef __STM32F1__
+
 #include "../../inc/MarlinConfig.h"
 
 #if ENABLED(IIC_BL24CXX_EEPROM)
@@ -79,3 +81,4 @@ bool PersistentStore::read_data(int &pos, uint8_t* value, size_t size, uint16_t
 }
 
 #endif // IIC_BL24CXX_EEPROM
+#endif // __STM32F1__

Marlin/src/HAL/STM32F1/eeprom_if_iic.cpp

@@ -25,6 +25,8 @@
  * Enable USE_SHARED_EEPROM if not supplied by the framework.
  */
 
+#ifdef __STM32F1__
+
 #include "../../inc/MarlinConfig.h"
 
 #if ENABLED(IIC_BL24CXX_EEPROM)
@@ -49,3 +51,4 @@ uint8_t eeprom_read_byte(uint8_t *pos) {
 }
 
 #endif // IIC_BL24CXX_EEPROM
+#endif // __STM32F1__

Marlin/src/HAL/STM32F1/eeprom_wired.cpp

@@ -17,17 +17,17 @@
  * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  *
  */
+
+/**
+ * HAL PersistentStore for STM32F1
+ */
+
 #ifdef __STM32F1__
 
 #include "../../inc/MarlinConfig.h"
 
 #if USE_WIRED_EEPROM
 
-/**
- * PersistentStore for Arduino-style EEPROM interface
- * with simple implementations supplied by Marlin.
- */
-
 #include "../shared/eeprom_if.h"
 #include "../shared/eeprom_api.h"
 

Marlin/src/HAL/STM32F1/msc_sd.cpp

@@ -13,7 +13,7 @@
  * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  *
  */
-#ifdef USE_USB_COMPOSITE
+#if defined(__STM32F1__) && defined(USE_USB_COMPOSITE)
 
 #include "msc_sd.h"
 #include "SPI.h"
@@ -77,4 +77,4 @@ void MSC_SD_init() {
   #endif
 }
 
-#endif // USE_USB_COMPOSITE
+#endif // __STM32F1__ && USE_USB_COMPOSITE

Marlin/src/HAL/STM32F1/onboard_sd.cpp

@@ -11,6 +11,8 @@
  * Redistributions of source code must retain the above copyright notice.
  */
 
+#ifdef __STM32F1__
+
 #include "../../inc/MarlinConfig.h"
 
 #if SD_CONNECTION_IS(ONBOARD)
@@ -553,3 +555,4 @@ DRESULT disk_read (
 #endif // _DISKIO_IOCTL
 
 #endif // SD_CONNECTION_IS(ONBOARD)
+#endif // __STM32F1__

Marlin/src/HAL/STM32_F4_F7/HAL.h

@@ -142,6 +142,8 @@ void HAL_clear_reset_source();
 // Reset reason
 uint8_t HAL_get_reset_source();
 
+inline void HAL_reboot() {}  // reboot the board or restart the bootloader
+
 void _delay_ms(const int delay);
 
 /*

Marlin/src/HAL/STM32_F4_F7/STM32F7/TMC2660.cpp

@@ -45,8 +45,8 @@
 #define DEFAULT_MICROSTEPPING_VALUE 32
 
 //TMC26X register definitions
-#define DRIVER_CONTROL_REGISTER 0x0ul
-#define CHOPPER_CONFIG_REGISTER 0x80000ul
+#define DRIVER_CONTROL_REGISTER 0x0UL
+#define CHOPPER_CONFIG_REGISTER 0x80000UL
 #define COOL_STEP_REGISTER  0xA0000ul
 #define STALL_GUARD2_LOAD_MEASURE_REGISTER 0xC0000ul
 #define DRIVER_CONFIG_REGISTER 0xE0000ul
@@ -55,58 +55,58 @@
 
 //definitions for the driver control register
 #define MICROSTEPPING_PATTERN 0xFul
-#define STEP_INTERPOLATION 0x200ul
-#define DOUBLE_EDGE_STEP 0x100ul
-#define VSENSE 0x40ul
-#define READ_MICROSTEP_POSTION 0x0ul
-#define READ_STALL_GUARD_READING 0x10ul
-#define READ_STALL_GUARD_AND_COOL_STEP 0x20ul
-#define READ_SELECTION_PATTERN 0x30ul
+#define STEP_INTERPOLATION 0x200UL
+#define DOUBLE_EDGE_STEP 0x100UL
+#define VSENSE 0x40UL
+#define READ_MICROSTEP_POSTION 0x0UL
+#define READ_STALL_GUARD_READING 0x10UL
+#define READ_STALL_GUARD_AND_COOL_STEP 0x20UL
+#define READ_SELECTION_PATTERN 0x30UL
 
 //definitions for the chopper config register
-#define CHOPPER_MODE_STANDARD 0x0ul
-#define CHOPPER_MODE_T_OFF_FAST_DECAY 0x4000ul
+#define CHOPPER_MODE_STANDARD 0x0UL
+#define CHOPPER_MODE_T_OFF_FAST_DECAY 0x4000UL
 #define T_OFF_PATTERN 0xFul
-#define RANDOM_TOFF_TIME 0x2000ul
-#define BLANK_TIMING_PATTERN 0x18000ul
+#define RANDOM_TOFF_TIME 0x2000UL
+#define BLANK_TIMING_PATTERN 0x18000UL
 #define BLANK_TIMING_SHIFT 15
-#define HYSTERESIS_DECREMENT_PATTERN 0x1800ul
+#define HYSTERESIS_DECREMENT_PATTERN 0x1800UL
 #define HYSTERESIS_DECREMENT_SHIFT 11
-#define HYSTERESIS_LOW_VALUE_PATTERN 0x780ul
+#define HYSTERESIS_LOW_VALUE_PATTERN 0x780UL
 #define HYSTERESIS_LOW_SHIFT 7
-#define HYSTERESIS_START_VALUE_PATTERN 0x78ul
+#define HYSTERESIS_START_VALUE_PATTERN 0x78UL
 #define HYSTERESIS_START_VALUE_SHIFT 4
 #define T_OFF_TIMING_PATERN 0xFul
 
 //definitions for cool step register
-#define MINIMUM_CURRENT_FOURTH 0x8000ul
-#define CURRENT_DOWN_STEP_SPEED_PATTERN 0x6000ul
+#define MINIMUM_CURRENT_FOURTH 0x8000UL
+#define CURRENT_DOWN_STEP_SPEED_PATTERN 0x6000UL
 #define SE_MAX_PATTERN 0xF00ul
-#define SE_CURRENT_STEP_WIDTH_PATTERN 0x60ul
+#define SE_CURRENT_STEP_WIDTH_PATTERN 0x60UL
 #define SE_MIN_PATTERN 0xFul
 
 //definitions for StallGuard2 current register
-#define STALL_GUARD_FILTER_ENABLED 0x10000ul
+#define STALL_GUARD_FILTER_ENABLED 0x10000UL
 #define STALL_GUARD_TRESHHOLD_VALUE_PATTERN 0x17F00ul
 #define CURRENT_SCALING_PATTERN 0x1Ful
 #define STALL_GUARD_CONFIG_PATTERN 0x17F00ul
 #define STALL_GUARD_VALUE_PATTERN 0x7F00ul
 
 //definitions for the input from the TMC2660
-#define STATUS_STALL_GUARD_STATUS 0x1ul
-#define STATUS_OVER_TEMPERATURE_SHUTDOWN 0x2ul
-#define STATUS_OVER_TEMPERATURE_WARNING 0x4ul
-#define STATUS_SHORT_TO_GROUND_A 0x8ul
-#define STATUS_SHORT_TO_GROUND_B 0x10ul
-#define STATUS_OPEN_LOAD_A 0x20ul
-#define STATUS_OPEN_LOAD_B 0x40ul
-#define STATUS_STAND_STILL 0x80ul
+#define STATUS_STALL_GUARD_STATUS 0x1UL
+#define STATUS_OVER_TEMPERATURE_SHUTDOWN 0x2UL
+#define STATUS_OVER_TEMPERATURE_WARNING 0x4UL
+#define STATUS_SHORT_TO_GROUND_A 0x8UL
+#define STATUS_SHORT_TO_GROUND_B 0x10UL
+#define STATUS_OPEN_LOAD_A 0x20UL
+#define STATUS_OPEN_LOAD_B 0x40UL
+#define STATUS_STAND_STILL 0x80UL
 #define READOUT_VALUE_PATTERN 0xFFC00ul
 
 #define CPU_32_BIT
 
 //default values
-#define INITIAL_MICROSTEPPING 0x3ul //32th microstepping
+#define INITIAL_MICROSTEPPING 0x3UL //32th microstepping
 
 SPIClass SPI_6(SPI6, SPI6_MOSI_PIN, SPI6_MISO_PIN, SPI6_SCK_PIN);
 

Marlin/src/HAL/TEENSY31_32/HAL.cpp

@@ -20,9 +20,8 @@
  *
  */
 
-
 /**
- * Description: HAL for Teensy32 (MK20DX256)
+ * HAL for Teensy 3.2 (MK20DX256)
  */
 
 #ifdef __MK20DX256__

Marlin/src/HAL/TEENSY31_32/HAL.h

@@ -22,7 +22,7 @@
 #pragma once
 
 /**
- * Description: HAL for Teensy 3.5 and Teensy 3.6
+ * HAL for Teensy 3.2 (MK20DX256)
  */
 
 #define CPU_32_BIT
@@ -44,8 +44,9 @@
 //#undef MOTHERBOARD
 //#define MOTHERBOARD BOARD_TEENSY31_32
 
-#ifdef __MK20DX256__
-  #define IS_32BIT_TEENSY 1
+#define IS_32BIT_TEENSY 1
+#define IS_TEENSY_31_32 1
+#ifndef IS_TEENSY31
   #define IS_TEENSY32 1
 #endif
 
@@ -64,7 +65,7 @@
 typedef int8_t pin_t;
 
 #ifndef analogInputToDigitalPin
-  #define analogInputToDigitalPin(p) ((p < 12u) ? (p) + 54u : -1)
+  #define analogInputToDigitalPin(p) ((p < 12U) ? (p) + 54U : -1)
 #endif
 
 #define CRITICAL_SECTION_START()  uint32_t primask = __get_PRIMASK(); __disable_irq()
@@ -92,6 +93,8 @@ void HAL_clear_reset_source();
 // Get the reason for the reset
 uint8_t HAL_get_reset_source();
 
+inline void HAL_reboot() {}  // reboot the board or restart the bootloader
+
 FORCE_INLINE void _delay_ms(const int delay_ms) { delay(delay_ms); }
 
 #pragma GCC diagnostic push

Marlin/src/HAL/TEENSY31_32/Servo.cpp

@@ -51,5 +51,4 @@ void libServo::move(const int value) {
 }
 
 #endif // HAS_SERVOS
-
 #endif // __MK20DX256__

Marlin/src/HAL/TEENSY31_32/eeprom.cpp

@@ -23,8 +23,7 @@
 #if USE_WIRED_EEPROM
 
 /**
- * PersistentStore for Arduino-style EEPROM interface
- * with implementations supplied by the framework.
+ * HAL PersistentStore for Teensy 3.2 (MK20DX256)
  */
 
 #include "../shared/eeprom_api.h"

Marlin/src/HAL/TEENSY31_32/timers.cpp

@@ -21,7 +21,7 @@
  */
 
 /**
- * Teensy3.2 __MK20DX256__
+ * HAL Timers for Teensy 3.2 (MK20DX256)
  */
 
 #ifdef __MK20DX256__

Marlin/src/HAL/TEENSY31_32/timers.h

@@ -22,8 +22,7 @@
 #pragma once
 
 /**
- * Description: HAL for
- * Teensy3.2 (__MK20DX256__)
+ * HAL Timers for Teensy 3.2 (MK20DX256)
  */
 
 #include <stdint.h>

Marlin/src/HAL/TEENSY35_36/HAL.cpp

@@ -21,7 +21,7 @@
  */
 
 /**
- * Description: HAL for Teensy35 (MK64FX512)
+ * HAL for Teensy 3.5 (MK64FX512) and Teensy 3.6 (MK66FX1M0)
  */
 
 #if defined(__MK64FX512__) || defined(__MK66FX1M0__)

Marlin/src/HAL/TEENSY35_36/HAL.h

@@ -22,7 +22,7 @@
 #pragma once
 
 /**
- * Description: HAL for Teensy 3.5 and Teensy 3.6
+ * HAL for Teensy 3.5 (MK64FX512) and Teensy 3.6 (MK66FX1M0)
  */
 
 #define CPU_32_BIT
@@ -45,13 +45,12 @@
 // Defines
 // ------------------------
 
-#ifdef __MK64FX512__
-  #define IS_32BIT_TEENSY 1
-  #define IS_TEENSY35 1
-#endif
+#define IS_32BIT_TEENSY 1
+#define IS_TEENSY_35_36 1
 #ifdef __MK66FX1M0__
-  #define IS_32BIT_TEENSY 1
   #define IS_TEENSY36 1
+#else // __MK64FX512__
+  #define IS_TEENSY35 1
 #endif
 
 #define _MSERIAL(X) Serial##X
@@ -69,7 +68,7 @@
 typedef int8_t pin_t;
 
 #ifndef analogInputToDigitalPin
-  #define analogInputToDigitalPin(p) ((p < 12u) ? (p) + 54u : -1)
+  #define analogInputToDigitalPin(p) ((p < 12U) ? (p) + 54U : -1)
 #endif
 
 #define CRITICAL_SECTION_START()  uint32_t primask = __get_primask(); __disable_irq()
@@ -100,6 +99,8 @@ void HAL_clear_reset_source();
 // Reset reason
 uint8_t HAL_get_reset_source();
 
+inline void HAL_reboot() {}  // reboot the board or restart the bootloader
+
 FORCE_INLINE void _delay_ms(const int delay_ms) { delay(delay_ms); }
 
 #pragma GCC diagnostic push

Marlin/src/HAL/TEENSY35_36/HAL_SPI.cpp

@@ -19,6 +19,11 @@
  * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  *
  */
+
+/**
+ * HAL SPI for Teensy 3.5 (MK64FX512) and Teensy 3.6 (MK66FX1M0)
+ */
+
 #if defined(__MK64FX512__) || defined(__MK66FX1M0__)
 
 #include "HAL.h"

Marlin/src/HAL/TEENSY35_36/Servo.cpp

@@ -19,6 +19,11 @@
  * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  *
  */
+
+/**
+ * HAL Servo for Teensy 3.5 (MK64FX512) and Teensy 3.6 (MK66FX1M0)
+ */
+
 #if defined(__MK64FX512__) || defined(__MK66FX1M0__)
 
 #include "../../inc/MarlinConfig.h"
@@ -51,5 +56,4 @@ void libServo::move(const int value) {
 }
 
 #endif // HAS_SERVOS
-
 #endif // __MK64FX512__ || __MK66FX1M0__

Marlin/src/HAL/TEENSY35_36/Servo.h

@@ -21,6 +21,10 @@
  */
 #pragma once
 
+/**
+ * HAL Servo for Teensy 3.5 (MK64FX512) and Teensy 3.6 (MK66FX1M0)
+ */
+
 #include <Servo.h>
 
 // Inherit and expand on core Servo library

Marlin/src/HAL/TEENSY35_36/eeprom.cpp

@@ -22,15 +22,14 @@
  */
 #if defined(__MK64FX512__) || defined(__MK66FX1M0__)
 
+/**
+ * HAL PersistentStore for Teensy 3.5 (MK64FX512) and Teensy 3.6 (MK66FX1M0)
+ */
+
 #include "../../inc/MarlinConfig.h"
 
 #if USE_WIRED_EEPROM
 
-/**
- * PersistentStore for Arduino-style EEPROM interface
- * with implementations supplied by the framework.
- */
-
 #include "../shared/eeprom_api.h"
 #include <avr/eeprom.h>
 

Marlin/src/HAL/TEENSY35_36/endstop_interrupts.h

@@ -22,7 +22,7 @@
 #pragma once
 
 /**
- * Endstop Interrupts
+ * HAL Endstop Interrupts for Teensy 3.5 (MK64FX512) and Teensy 3.6 (MK66FX1M0)
  *
  * Without endstop interrupts the endstop pins must be polled continually in
  * the temperature-ISR via endstops.update(), most of the time finding no change.

Marlin/src/HAL/TEENSY35_36/pinsDebug.h

@@ -18,6 +18,10 @@
  */
 #pragma once
 
+/**
+ * HAL Pins Debugging for Teensy 3.5 (MK64FX512) and Teensy 3.6 (MK66FX1M0)
+ */
+
 #define NUMBER_PINS_TOTAL NUM_DIGITAL_PINS
 #define MULTI_NAME_PAD 16 // space needed to be pretty if not first name assigned to a pin
 

Marlin/src/HAL/TEENSY35_36/spi_pins.h

@@ -21,6 +21,10 @@
  */
 #pragma once
 
+/**
+ * HAL SPI Pins for Teensy 3.5 (MK64FX512) and Teensy 3.6 (MK66FX1M0)
+ */
+
 #define SCK_PIN   13
 #define MISO_PIN  12
 #define MOSI_PIN  11

Marlin/src/HAL/TEENSY35_36/timers.cpp

@@ -21,8 +21,7 @@
  */
 
 /**
- * Teensy3.5 __MK64FX512__
- * Teensy3.6 __MK66FX1M0__
+ * HAL Timers for Teensy 3.5 (MK64FX512) and Teensy 3.6 (MK66FX1M0)
  */
 
 #if defined(__MK64FX512__) || defined(__MK66FX1M0__)

Marlin/src/HAL/TEENSY35_36/timers.h

@@ -21,9 +21,7 @@
 #pragma once
 
 /**
- * Description: HAL for
- * Teensy3.5 (__MK64FX512__)
- * Teensy3.6 (__MK66FX1M0__)
+ * HAL Timers for Teensy 3.5 (MK64FX512) and Teensy 3.6 (MK66FX1M0)
  */
 
 #include <stdint.h>

Marlin/src/HAL/TEENSY40_41/HAL.cpp

@@ -21,7 +21,7 @@
  */
 
 /**
- * Description: HAL for Teensy40 (IMXRT1062)
+ * HAL for Teensy 4.0 / 4.1 (IMXRT1062)
  */
 
 #ifdef __IMXRT1062__

Marlin/src/HAL/TEENSY40_41/HAL.h

@@ -22,7 +22,7 @@
 #pragma once
 
 /**
- * Description: HAL for Teensy 4.0 and Teensy 4.1
+ * HAL for Teensy 4.0 (IMXRT1062DVL6A) / 4.1 (IMXRT1062DVJ6A)
  */
 
 #define CPU_32_BIT
@@ -45,8 +45,9 @@
 // Defines
 // ------------------------
 
-#ifdef __IMXRT1062__
-  #define IS_32BIT_TEENSY 1
+#define IS_32BIT_TEENSY 1
+#define IS_TEENSY_40_41 1
+#ifndef IS_TEENSY40
   #define IS_TEENSY41 1
 #endif
 
@@ -77,7 +78,7 @@
 typedef int8_t pin_t;
 
 #ifndef analogInputToDigitalPin
-  #define analogInputToDigitalPin(p) ((p < 12u) ? (p) + 54u : -1)
+  #define analogInputToDigitalPin(p) ((p < 12U) ? (p) + 54U : -1)
 #endif
 
 #define CRITICAL_SECTION_START()  uint32_t primask = __get_primask(); __disable_irq()

Marlin/src/HAL/TEENSY40_41/HAL_SPI.cpp

@@ -19,6 +19,11 @@
  * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  *
  */
+
+/**
+ * HAL SPI for Teensy 4.0 (IMXRT1062DVL6A) / 4.1 (IMXRT1062DVJ6A)
+ */
+
 #ifdef __IMXRT1062__
 
 #include "HAL.h"

Marlin/src/HAL/TEENSY40_41/Servo.cpp

@@ -19,6 +19,11 @@
  * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  *
  */
+
+/**
+ * HAL Servo for Teensy 4.0 (IMXRT1062DVL6A) / 4.1 (IMXRT1062DVJ6A)
+ */
+
 #ifdef __IMXRT1062__
 
 #include "../../inc/MarlinConfig.h"
@@ -53,5 +58,4 @@ void libServo::detach() {
 }
 
 #endif // HAS_SERVOS
-
 #endif // __IMXRT1062__

Marlin/src/HAL/TEENSY40_41/Servo.h

@@ -21,6 +21,10 @@
  */
 #pragma once
 
+/**
+ * HAL Servo for Teensy 4.0 (IMXRT1062DVL6A) / 4.1 (IMXRT1062DVJ6A)
+ */
+
 #include <PWMServo.h>
 
 // Inherit and expand on core Servo library

Marlin/src/HAL/TEENSY40_41/eeprom.cpp

@@ -27,8 +27,7 @@
 #if USE_WIRED_EEPROM
 
 /**
- * PersistentStore for Arduino-style EEPROM interface
- * with implementations supplied by the framework.
+ * HAL PersistentStore for Teensy 4.0 (IMXRT1062DVL6A) / 4.1 (IMXRT1062DVJ6A)
  */
 
 #include "../shared/eeprom_api.h"

Marlin/src/HAL/TEENSY40_41/endstop_interrupts.h

@@ -22,7 +22,7 @@
 #pragma once
 
 /**
- * Endstop Interrupts
+ * HAL Endstop Interrupts for Teensy 4.0 (IMXRT1062DVL6A) / 4.1 (IMXRT1062DVJ6A)
  *
  * Without endstop interrupts the endstop pins must be polled continually in
  * the temperature-ISR via endstops.update(), most of the time finding no change.

Marlin/src/HAL/TEENSY40_41/fastio.h

@@ -23,7 +23,7 @@
 #pragma once
 
 /**
- * Fast I/O interfaces for Teensy 4
+ * Fast I/O interfaces for Teensy 4.0 (IMXRT1062DVL6A) / 4.1 (IMXRT1062DVJ6A)
  * These use GPIO functions instead of Direct Port Manipulation, as on AVR.
  */
 

Marlin/src/HAL/TEENSY40_41/pinsDebug.h

@@ -18,6 +18,10 @@
  */
 #pragma once
 
+/**
+ * HAL Pins Debugging for Teensy 4.0 (IMXRT1062DVL6A) / 4.1 (IMXRT1062DVJ6A)
+ */
+
 #warning "PINS_DEBUGGING is not fully supported for Teensy 4.0 / 4.1 so 'M43' may cause hangs."
 
 #define NUMBER_PINS_TOTAL NUM_DIGITAL_PINS

Marlin/src/HAL/TEENSY40_41/spi_pins.h

@@ -21,6 +21,10 @@
  */
 #pragma once
 
+/**
+ * HAL SPI Pins for Teensy 4.0 (IMXRT1062DVL6A) / 4.1 (IMXRT1062DVJ6A)
+ */
+
 #define SCK_PIN   13
 #define MISO_PIN  12
 #define MOSI_PIN  11

Marlin/src/HAL/TEENSY40_41/timers.cpp

@@ -21,7 +21,7 @@
  */
 
 /**
- * Teensy4.0/4.1 (__IMXRT1062__)
+ * HAL Timers for Teensy 4.0 (IMXRT1062DVL6A) / 4.1 (IMXRT1062DVJ6A)
  */
 
 #ifdef __IMXRT1062__

Marlin/src/HAL/TEENSY40_41/timers.h

@@ -21,8 +21,7 @@
 #pragma once
 
 /**
- * Description: HAL for
- * Teensy4.0/4.1 (__IMXRT1062__)
+ * HAL Timers for Teensy 4.0 (IMXRT1062DVL6A) / 4.1 (IMXRT1062DVJ6A)
  */
 
 #include <stdint.h>

Marlin/src/HAL/TEENSY40_41/watchdog.cpp

@@ -19,6 +19,11 @@
  * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  *
  */
+
+/**
+ * HAL Watchdog for Teensy 4.0 (IMXRT1062DVL6A) / 4.1 (IMXRT1062DVJ6A)
+ */
+
 #ifdef __IMXRT1062__
 
 #include "../../inc/MarlinConfig.h"
@@ -48,5 +53,4 @@ void HAL_watchdog_refresh() {
 }
 
 #endif // USE_WATCHDOG
-
 #endif // __IMXRT1062__

Marlin/src/HAL/TEENSY40_41/watchdog.h

@@ -22,7 +22,7 @@
 #pragma once
 
 /**
- * Watchdog for Teensy4.0/4.1 (__IMXRT1062__)
+ * HAL Watchdog for Teensy 4.0 (IMXRT1062DVL6A) / 4.1 (IMXRT1062DVJ6A)
  */
 
 void watchdog_init();

Marlin/src/MarlinCore.cpp

@@ -1048,6 +1048,11 @@ void setup() {
   SERIAL_ECHO_MSG("Compiled: " __DATE__);
   SERIAL_ECHO_MSG(STR_FREE_MEMORY, freeMemory(), STR_PLANNER_BUFFER_BYTES, (int)sizeof(block_t) * (BLOCK_BUFFER_SIZE));
 
+  // Init buzzer pin(s)
+  #if USE_BEEPER
+    SETUP_RUN(buzzer.init());
+  #endif
+
   // Set up LEDs early
   #if HAS_COLOR_LEDS
     SETUP_RUN(leds.setup());

Marlin/src/core/boards.h

@@ -320,6 +320,7 @@
 #define BOARD_CREALITY_V4             4034  // Creality v4.x (STM32F103RE)
 #define BOARD_CREALITY_V427           4035  // Creality v4.2.7 (STM32F103RE)
 #define BOARD_TRIGORILLA_PRO          4036  // Trigorilla Pro (STM32F103ZET6)
+#define BOARD_FLY_MINI                4037  // FLY MINI (STM32F103RCT6)
 
 //
 // ARM Cortex-M4F

Marlin/src/core/language.h

@@ -303,7 +303,7 @@
 #define LCD_STR_C STR_C
 #define LCD_STR_E STR_E
 
-#if HAS_MARLINUI_HD44780
+#if EITHER(HAS_MARLINUI_HD44780, IS_TFTGLCD_PANEL)
 
   // Custom characters defined in the first 8 characters of the LCD
   #define LCD_STR_BEDTEMP     "\x00" // Print only as a char. This will have 'unexpected' results when used in a string!

Marlin/src/core/macros.h

@@ -215,6 +215,7 @@
 #define WITHIN(N,L,H)       ((N) >= (L) && (N) <= (H))
 #define NUMERIC(a)          WITHIN(a, '0', '9')
 #define DECIMAL(a)          (NUMERIC(a) || a == '.')
+#define HEXCHR(a)           (NUMERIC(a) ? (a) - '0' : WITHIN(a, 'a', 'f') ? ((a) - 'a' + 10)  : WITHIN(a, 'A', 'F') ? ((a) - 'A' + 10) : -1)
 #define NUMERIC_SIGNED(a)   (NUMERIC(a) || (a) == '-' || (a) == '+')
 #define DECIMAL_SIGNED(a)   (DECIMAL(a) || (a) == '-' || (a) == '+')
 #define COUNT(a)            (sizeof(a)/sizeof(*a))

Marlin/src/core/utility.h

@@ -71,7 +71,7 @@ public:
   inline void restore() { ref_ = val_; }
 };
 
-#define REMEMBER(N,X,V...) restorer<typeof(X)> restorer_##N(X, ##V)
+#define REMEMBER(N,X,V...) restorer<__typeof__(X)> restorer_##N(X, ##V)
 #define RESTORE(N) restorer_##N.restore()
 
 // Converts from an uint8_t in the range of 0-255 to an uint8_t

Marlin/src/feature/dac/dac_mcp4728.h

@@ -40,7 +40,7 @@
 #endif
 
 #ifndef lowByte
-  #define lowByte(w)  ((uint8_t) ((w) & 0xff))
+  #define lowByte(w)  ((uint8_t) ((w) & 0xFF))
 #endif
 
 #ifndef highByte

Marlin/src/feature/e_parser.h

@@ -88,10 +88,8 @@ public:
 
       case EP_N:
         switch (c) {
-          case '0': case '1': case '2':
-          case '3': case '4': case '5':
-          case '6': case '7': case '8':
-          case '9': case '-': case ' ':   break;
+          case '0' ... '9':
+          case '-': case ' ':   break;
           case 'M': state = EP_M;      break;
           default:  state = EP_IGNORE;
         }
@@ -153,10 +151,7 @@ public:
       case EP_M876S:
         switch (c) {
           case ' ': break;
-          case '0': case '1': case '2':
-          case '3': case '4': case '5':
-          case '6': case '7': case '8':
-          case '9':
+          case '0' ... '9':
             state = EP_M876SN;
             M876_reason = (uint8_t)(c - '0');
             break;

Marlin/src/feature/mmu2/mmu2.cpp

@@ -340,17 +340,17 @@ void MMU2::mmu_loop() {
       #endif
 
       if (rx_ok()) {
-        // response to C0 mmu command in PRUSA_MMU2_S_MODE
+        // Response to C0 mmu command in PRUSA_MMU2_S_MODE
         bool can_reset = true;
-        if (ENABLED(PRUSA_MMU2_S_MODE) && last_cmd == MMU_CMD_C0) {
-          if (!mmu2s_triggered) {
+        #if ENABLED(PRUSA_MMU2_S_MODE)
+          if (!mmu2s_triggered && last_cmd == MMU_CMD_C0) {
             can_reset = false;
             // MMU ok received but filament sensor not triggered, retrying...
             DEBUG_ECHOLNPGM("MMU => 'ok' (filament not present in gears)");
             DEBUG_ECHOLNPGM("MMU <= 'C0' (keep trying)");
             MMU2_COMMAND("C0");
           }
-        }
+        #endif
         if (can_reset) {
           DEBUG_ECHOLNPGM("MMU => 'ok'");
           ready = true;

Marlin/src/feature/pause.cpp

@@ -612,11 +612,13 @@ void resume_print(const float &slow_load_length/*=0*/, const float &fast_load_le
   // Retract to prevent oozing
   unscaled_e_move(-(PAUSE_PARK_RETRACT_LENGTH), feedRate_t(PAUSE_PARK_RETRACT_FEEDRATE));
 
-  // Move XY to starting position, then Z
-  do_blocking_move_to_xy(resume_position, feedRate_t(NOZZLE_PARK_XY_FEEDRATE));
+  if (!axes_should_home()) {
+    // Move XY to starting position, then Z
+    do_blocking_move_to_xy(resume_position, feedRate_t(NOZZLE_PARK_XY_FEEDRATE));
 
-  // Move Z_AXIS to saved position
-  do_blocking_move_to_z(resume_position.z, feedRate_t(NOZZLE_PARK_Z_FEEDRATE));
+    // Move Z_AXIS to saved position
+    do_blocking_move_to_z(resume_position.z, feedRate_t(NOZZLE_PARK_Z_FEEDRATE));
+  }
 
   // Unretract
   unscaled_e_move(PAUSE_PARK_RETRACT_LENGTH, feedRate_t(PAUSE_PARK_RETRACT_FEEDRATE));

Marlin/src/feature/tmc_util.h

@@ -38,7 +38,7 @@
 #define CHOPPER_09STEP_24V   { 3, -1, 5 }
 
 #if ENABLED(MONITOR_DRIVER_STATUS) && !defined(MONITOR_DRIVER_STATUS_INTERVAL_MS)
-  #define MONITOR_DRIVER_STATUS_INTERVAL_MS 500u
+  #define MONITOR_DRIVER_STATUS_INTERVAL_MS 500U
 #endif
 
 constexpr uint16_t _tmc_thrs(const uint16_t msteps, const uint32_t thrs, const uint32_t spmm) {

Marlin/src/gcode/bedlevel/G35.cpp

@@ -157,7 +157,7 @@ void GcodeSuite::G35() {
       const int minutes = trunc(decimal_part * 60.0f);
 
       SERIAL_ECHOPAIR("Turn ", tramming_point_name[i],
-             " ", (screw_thread & 1) == (adjust > 0) ? "Counter-Clockwise" : "Clockwise",
+             " ", (screw_thread & 1) == (adjust > 0) ? "CCW" : "CW",
              " by ", abs(full_turns), " turns");
       if (minutes) SERIAL_ECHOPAIR(" and ", abs(minutes), " minutes");
       SERIAL_EOL();

Marlin/src/gcode/calibrate/M100.cpp

@@ -60,7 +60,7 @@
 
 #define TEST_BYTE ((char) 0xE5)
 
-#if defined(__AVR__) || IS_32BIT_TEENSY
+#if EITHER(__AVR__, IS_32BIT_TEENSY)
 
   extern char __bss_end;
   char *end_bss = &__bss_end,

Marlin/src/gcode/control/M226.cpp

@@ -20,6 +20,10 @@
  *
  */
 
+#include "../../inc/MarlinConfig.h"
+
+#if ENABLED(DIRECT_PIN_CONTROL)
+
 #include "../gcode.h"
 #include "../../MarlinCore.h" // for pin_is_protected and idle()
 #include "../../module/stepper.h"
@@ -50,3 +54,5 @@ void GcodeSuite::M226() {
     } // pin_state -1 0 1 && pin > -1
   } // parser.seen('P')
 }
+
+#endif // DIRECT_PIN_CONTROL

Marlin/src/gcode/control/M42.cpp

@@ -20,9 +20,12 @@
  *
  */
 
+#include "../../inc/MarlinConfig.h"
+
+#if ENABLED(DIRECT_PIN_CONTROL)
+
 #include "../gcode.h"
 #include "../../MarlinCore.h" // for pin_is_protected
-#include "../../inc/MarlinConfig.h"
 
 #if HAS_FAN
   #include "../../module/temperature.h"
@@ -96,3 +99,5 @@ void GcodeSuite::M42() {
   extDigitalWrite(pin, pin_status);
   analogWrite(pin, pin_status);
 }
+
+#endif // DIRECT_PIN_CONTROL

Marlin/src/gcode/control/T.cpp

@@ -46,7 +46,7 @@
  *   Tx   Same as T?, but nozzle doesn't have to be preheated. Tc requires a preheated nozzle to finish filament load.
  *   Tc   Load to nozzle after filament was prepared by Tc and nozzle is already heated.
  */
-void GcodeSuite::T(const uint8_t tool_index) {
+void GcodeSuite::T(const int8_t tool_index) {
 
   DEBUG_SECTION(log_T, "T", DEBUGGING(LEVELING));
   if (DEBUGGING(LEVELING)) DEBUG_ECHOLNPAIR("...(", tool_index, ")");

Marlin/src/gcode/gcode.cpp

@@ -260,12 +260,8 @@ void GcodeSuite::process_parsed_command(const bool no_ok/*=false*/) {
   switch (parser.command_letter) {
     case 'G': switch (parser.codenum) {
 
-      case 0: case 1: G0_G1(                                      // G0: Fast Move, G1: Linear Move
-                        #if IS_SCARA || defined(G0_FEEDRATE)
-                          parser.codenum == 0
-                        #endif
-                      );
-                      break;
+      case 0: case 1:                                             // G0: Fast Move, G1: Linear Move
+        G0_G1(TERN_(HAS_FAST_MOVES, parser.codenum == 0)); break;
 
       #if ENABLED(ARC_SUPPORT) && DISABLED(SCARA)
         case 2: case 3: G2_G3(parser.codenum == 2); break;        // G2: CW ARC, G3: CCW ARC
@@ -315,13 +311,9 @@ void GcodeSuite::process_parsed_command(const bool no_ok/*=false*/) {
 
       #if HAS_LEVELING
         case 29:                                                  // G29: Bed leveling calibration
-          #if ENABLED(G29_RETRY_AND_RECOVER)
-            G29_with_retry();
-          #else
-            G29();
-          #endif
+          TERN(G29_RETRY_AND_RECOVER, G29_with_retry, G29)();
           break;
-      #endif // HAS_LEVELING
+      #endif
 
       #if HAS_BED_PROBE
         case 30: G30(); break;                                    // G30: Single Z probe
@@ -453,7 +445,10 @@ void GcodeSuite::process_parsed_command(const bool no_ok/*=false*/) {
       #endif // SDSUPPORT
 
       case 31: M31(); break;                                      // M31: Report time since the start of SD print or last M109
-      case 42: M42(); break;                                      // M42: Change pin state
+
+      #if ENABLED(DIRECT_PIN_CONTROL)
+        case 42: M42(); break;                                    // M42: Change pin state
+      #endif
 
       #if ENABLED(PINS_DEBUGGING)
         case 43: M43(); break;                                    // M43: Read pin state
@@ -628,7 +623,9 @@ void GcodeSuite::process_parsed_command(const bool no_ok/*=false*/) {
         case 221: M221(); break;                                  // M221: Set Flow Percentage
       #endif
 
-      case 226: M226(); break;                                    // M226: Wait until a pin reaches a state
+      #if ENABLED(DIRECT_PIN_CONTROL)
+        case 226: M226(); break;                                  // M226: Wait until a pin reaches a state
+      #endif
 
       #if HAS_SERVOS
         case 280: M280(); break;                                  // M280: Set servo position absolute
@@ -931,6 +928,10 @@ void GcodeSuite::process_parsed_command(const bool no_ok/*=false*/) {
 
     case 'T': T(parser.codenum); break;                           // Tn: Tool Change
 
+    #if ENABLED(MARLIN_DEV_MODE)
+      case 'D': D(parser.codenum); break;                         // Dn: Debug codes
+    #endif
+
     default:
       #if ENABLED(WIFI_CUSTOM_COMMAND)
         if (wifi_custom_command(parser.command_ptr)) break;

Marlin/src/gcode/gcode.h

@@ -109,7 +109,7 @@
  *        The '#' is necessary when calling from within sd files, as it stops buffer prereading
  * M33  - Get the longname version of a path. (Requires LONG_FILENAME_HOST_SUPPORT)
  * M34  - Set SD Card sorting options. (Requires SDCARD_SORT_ALPHA)
- * M42  - Change pin status via gcode: M42 P<pin> S<value>. LED pin assumed if P is omitted.
+ * M42  - Change pin status via gcode: M42 P<pin> S<value>. LED pin assumed if P is omitted. (Requires DIRECT_PIN_CONTROL)
  * M43  - Display pin status, watch pins for changes, watch endstops & toggle LED, Z servo probe test, toggle pins
  * M48  - Measure Z Probe repeatability: M48 P<points> X<pos> Y<pos> V<level> E<engage> L<legs> S<chizoid>. (Requires Z_MIN_PROBE_REPEATABILITY_TEST)
  * M73  - Set the progress percentage. (Requires LCD_SET_PROGRESS_MANUALLY)
@@ -183,7 +183,7 @@
  * M220 - Set Feedrate Percentage: "M220 S<percent>" (i.e., "FR" on the LCD)
  *        Use "M220 B" to back up the Feedrate Percentage and "M220 R" to restore it. (Requires PRUSA_MMU2)
  * M221 - Set Flow Percentage: "M221 S<percent>"
- * M226 - Wait until a pin is in a given state: "M226 P<pin> S<state>"
+ * M226 - Wait until a pin is in a given state: "M226 P<pin> S<state>" (Requires DIRECT_PIN_CONTROL)
  * M240 - Trigger a camera to take a photograph. (Requires PHOTO_GCODE)
  * M250 - Set LCD contrast: "M250 C<contrast>" (0-63). (Requires LCD support)
  * M260 - i2c Send Data (Requires EXPERIMENTAL_I2CBUS)
@@ -285,6 +285,7 @@
  * M995 - Touch screen calibration for TFT display
  * M997 - Perform in-application firmware update
  * M999 - Restart after being stopped by error
+ * D... - Custom Development G-code. Add hooks to 'gcode_D.cpp' for developers to test features. (Requires MARLIN_DEV_MODE)
  *
  * "T" Codes
  *
@@ -298,6 +299,10 @@
   #include "../feature/encoder_i2c.h"
 #endif
 
+#if IS_SCARA || defined(G0_FEEDRATE)
+  #define HAS_FAST_MOVES 1
+#endif
+
 enum AxisRelative : uint8_t { REL_X, REL_Y, REL_Z, REL_E, E_MODE_ABS, E_MODE_REL };
 
 class GcodeSuite {
@@ -404,11 +409,9 @@ public:
 
 private:
 
-  static void G0_G1(
-    #if IS_SCARA || defined(G0_FEEDRATE)
-      const bool fast_move=false
-    #endif
-  );
+  TERN_(MARLIN_DEV_MODE, static void D(const int16_t dcode));
+
+  static void G0_G1(TERN_(HAS_FAST_MOVES, const bool fast_move=false));
 
   TERN_(ARC_SUPPORT, static void G2_G3(const bool clockwise));
 
@@ -541,8 +544,7 @@ private:
     #endif
   #endif
 
-  static void M42();
-
+  TERN_(DIRECT_PIN_CONTROL, static void M42());
   TERN_(PINS_DEBUGGING, static void M43());
 
   TERN_(Z_MIN_PROBE_REPEATABILITY_TEST, static void M48());
@@ -670,7 +672,7 @@ private:
     static void M221();
   #endif
 
-  static void M226();
+  TERN_(DIRECT_PIN_CONTROL, static void M226());
 
   TERN_(PHOTO_GCODE, static void M240());
 
@@ -882,7 +884,7 @@ private:
 
   TERN_(CONTROLLER_FAN_EDITABLE, static void M710());
 
-  static void T(const uint8_t tool_index);
+  static void T(const int8_t tool_index);
 
 };
 

Marlin/src/gcode/gcode_d.cpp

@@ -0,0 +1,173 @@
+/**
+ * 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/>.
+ *
+ */
+#include "../inc/MarlinConfigPre.h"
+
+#if ENABLED(MARLIN_DEV_MODE)
+
+  #include "gcode.h"
+  #include "../module/settings.h"
+  #include "../libs/hex_print.h"
+  #include "../HAL/shared/eeprom_if.h"
+
+  /**
+   * Dn: G-code for development and testing
+   *
+   * See https://reprap.org/wiki/G-code#D:_Debug_codes
+   *
+   * Put whatever else you need here to test ongoing development.
+   */
+  void GcodeSuite::D(const int16_t dcode) {
+    switch (dcode) {
+
+      case -1:
+        for (;;); // forever
+
+      case 0:
+        HAL_reboot();
+        break;
+
+      case 1: {
+        // Zero or pattern-fill the EEPROM data
+        #if ENABLED(EEPROM_SETTINGS)
+          persistentStore.access_start();
+          size_t total = persistentStore.capacity();
+          int pos = 0;
+          const uint8_t value = 0x0;
+          while(total--) {
+            persistentStore.write_data(pos, &value, 1);
+          }
+          persistentStore.access_finish();
+        #else
+          settings.reset();
+          settings.save();
+        #endif
+        HAL_reboot();
+      } break;
+
+      case 2: { // D2 Read / Write SRAM
+        #define SRAM_SIZE 8192
+        uint8_t *pointer = parser.hex_adr_val('A');
+        uint16_t len = parser.ushortval('C', 1);
+        uintptr_t addr = (uintptr_t)pointer;
+        NOMORE(addr, (size_t)(SRAM_SIZE - 1));
+        NOMORE(len, SRAM_SIZE - addr);
+        if (parser.seenval('X')) {
+          // Write the hex bytes after the X
+          uint16_t val = parser.hex_val('X');
+          while (len--) {
+            *pointer = val;
+            pointer++;
+          }
+        }
+        else {
+          while (len--) print_hex_byte(*(pointer++));
+          SERIAL_EOL();
+        }
+      } break;
+
+      case 3: { // D3 Read / Write EEPROM
+        uint8_t *pointer = parser.hex_adr_val('A');
+        uint16_t len = parser.ushortval('C', 1);
+        uintptr_t addr = (uintptr_t)pointer;
+        #ifndef MARLIN_EEPROM_SIZE
+          #define MARLIN_EEPROM_SIZE size_t(E2END + 1)
+        #endif
+        NOMORE(addr, (size_t)(MARLIN_EEPROM_SIZE - 1));
+        NOMORE(len, MARLIN_EEPROM_SIZE - addr);
+        if (parser.seenval('X')) {
+          uint16_t val = parser.hex_val('X');
+          #if ENABLED(EEPROM_SETTINGS)
+            persistentStore.access_start();
+            while(len--) {
+              int pos = 0;
+              persistentStore.write_data(pos, (uint8_t *)&val, sizeof(val));
+            }
+            SERIAL_EOL();
+            persistentStore.access_finish();
+          #else
+            SERIAL_ECHOLN("NO EEPROM");
+          #endif
+        }
+        else {
+          while (len--) {
+            // Read bytes from EEPROM
+            #if ENABLED(EEPROM_SETTINGS)
+              persistentStore.access_start();
+              uint8_t val;
+              while(len--) {
+                int pos = 0;
+                if (!persistentStore.read_data(pos, (uint8_t *)&val, sizeof(val))) {
+                  print_hex_byte(val);
+                }
+              }
+              SERIAL_EOL();
+              persistentStore.access_finish();
+            #else
+              SERIAL_ECHOLN("NO EEPROM");
+            #endif
+          }
+          SERIAL_EOL();
+        }
+      } break;
+
+      case 4: { // D4 Read / Write PIN
+        // const uint8_t pin = parser.byteval('P');
+        // const bool is_out = parser.boolval('F'),
+        //            val = parser.byteval('V', LOW);
+        if (parser.seenval('X')) {
+          // TODO: Write the hex bytes after the X
+          //while (len--) {
+          //}
+        }
+        else {
+          // while (len--) {
+            // TODO: Read bytes from EEPROM
+            // print_hex_byte(eeprom_read_byte(*(adr++));
+          // }
+          SERIAL_EOL();
+        }
+      } break;
+
+      case 5: { // D4 Read / Write onboard Flash
+        #define FLASH_SIZE 1024
+        uint8_t *pointer = parser.hex_adr_val('A');
+        uint16_t len = parser.ushortval('C', 1);
+        uintptr_t addr = (uintptr_t)pointer;
+        NOMORE(addr, (size_t)(FLASH_SIZE - 1));
+        NOMORE(len, FLASH_SIZE - addr);
+        if (parser.seenval('X')) {
+          // TODO: Write the hex bytes after the X
+          //while (len--) {
+          //}
+        }
+        else {
+          // while (len--) {
+            // TODO: Read bytes from EEPROM
+            // print_hex_byte(eeprom_read_byte(adr++));
+          // }
+          SERIAL_EOL();
+        }
+      } break;
+    }
+  }
+
+#endif

Marlin/src/gcode/motion/G0_G1.cpp

@@ -44,11 +44,7 @@ extern xyze_pos_t destination;
 /**
  * G0, G1: Coordinated movement of X Y Z E axes
  */
-void GcodeSuite::G0_G1(
-  #if IS_SCARA || defined(G0_FEEDRATE)
-    const bool fast_move/*=false*/
-  #endif
-) {
+void GcodeSuite::G0_G1(TERN_(HAS_FAST_MOVES, const bool fast_move/*=false*/)) {
 
   if (IsRunning()
     #if ENABLED(NO_MOTION_BEFORE_HOMING)

Marlin/src/gcode/parser.cpp

@@ -147,22 +147,15 @@ void GCodeParser::parse(char *p) {
     starpos[1] = '\0';
   }
 
-  #if ENABLED(GCODE_MOTION_MODES)
-    #if ENABLED(ARC_SUPPORT)
-      #define GTOP 3
-    #else
-      #define GTOP 1
-    #endif
+  #if ANY(MARLIN_DEV_MODE, SWITCHING_TOOLHEAD, MAGNETIC_SWITCHING_TOOLHEAD, ELECTROMAGNETIC_SWITCHING_TOOLHEAD)
+    #define SIGNED_CODENUM 1
   #endif
 
   // Bail if the letter is not G, M, or T
   // (or a valid parameter for the current motion mode)
   switch (letter) {
 
-    case 'G': case 'M': case 'T':
-    #if ENABLED(CANCEL_OBJECTS)
-      case 'O':
-    #endif
+    case 'G': case 'M': case 'T': TERN_(MARLIN_DEV_MODE, case 'D':)
       // Skip spaces to get the numeric part
       while (*p == ' ') p++;
 
@@ -178,22 +171,33 @@ void GCodeParser::parse(char *p) {
       #endif
 
       // Bail if there's no command code number
-      if (!NUMERIC(*p)) return;
+      if (!TERN(SIGNED_CODENUM, NUMERIC_SIGNED(*p), NUMERIC(*p))) return;
 
       // Save the command letter at this point
       // A '?' signifies an unknown command
       command_letter = letter;
 
-      // Get the code number - integer digits only
-      codenum = 0;
-      do { codenum *= 10, codenum += *p++ - '0'; } while (NUMERIC(*p));
+      {
+        #if ENABLED(SIGNED_CODENUM)
+          int sign = 1; // Allow for a negative code like D-1 or T-1
+          if (*p == '-') { sign = -1; ++p; }
+        #endif
+
+        // Get the code number - integer digits only
+        codenum = 0;
+
+        do { codenum = codenum * 10 + *p++ - '0'; } while (NUMERIC(*p));
+
+        // Apply the sign, if any
+        TERN_(SIGNED_CODENUM, codenum *= sign);
+      }
 
       // Allow for decimal point in command
       #if ENABLED(USE_GCODE_SUBCODES)
         if (*p == '.') {
           p++;
           while (NUMERIC(*p))
-          subcode *= 10, subcode += *p++ - '0';
+            subcode = subcode * 10 + *p++ - '0';
         }
       #endif
 
@@ -201,11 +205,8 @@ void GCodeParser::parse(char *p) {
       while (*p == ' ') p++;
 
       #if ENABLED(GCODE_MOTION_MODES)
-        if (letter == 'G' && (codenum <= GTOP || codenum == 5
-                                #if ENABLED(G38_PROBE_TARGET)
-                                  || codenum == 38
-                                #endif
-                             )
+        if (letter == 'G'
+          && (codenum <= TERN(ARC_SUPPORT, 3, 1) || codenum == 5 || TERN0(G38_PROBE_TARGET, codenum == 38))
         ) {
           motion_mode_codenum = codenum;
           TERN_(USE_GCODE_SUBCODES, motion_mode_subcode = subcode);
@@ -216,12 +217,12 @@ void GCodeParser::parse(char *p) {
 
     #if ENABLED(GCODE_MOTION_MODES)
       #if ENABLED(ARC_SUPPORT)
-        case 'I': case 'J': case 'R':
+        case 'I' ... 'J': case 'R':
           if (motion_mode_codenum != 2 && motion_mode_codenum != 3) return;
       #endif
-      case 'P': case 'Q':
+      case 'P' ... 'Q':
         if (motion_mode_codenum != 5) return;
-      case 'X': case 'Y': case 'Z': case 'E': case 'F':
+      case 'X' ... 'Z': case 'E' ... 'F':
         if (motion_mode_codenum < 0) return;
         command_letter = 'G';
         codenum = motion_mode_codenum;
@@ -247,7 +248,7 @@ void GCodeParser::parse(char *p) {
     #if ENABLED(EXPECTED_PRINTER_CHECK)
       case 16:
     #endif
-    case 23: case 28: case 30: case 33: case 117: case 118: case 928:
+    case 23: case 28: case 30: case 117 ... 118: case 928:
       string_arg = unescape_string(p);
       return;
     default: break;

Marlin/src/gcode/parser.h

@@ -114,6 +114,11 @@ public:
     return valid_signless(p) || ((p[0] == '-' || p[0] == '+') && valid_signless(&p[1])); // [-+]?.?[0-9]
   }
 
+  FORCE_INLINE static bool valid_number(const char * const p) {
+    // TODO: With MARLIN_DEV_MODE allow HEX values starting with "x"
+    return valid_float(p);
+  }
+
   #if ENABLED(FASTER_GCODE_PARSER)
 
     FORCE_INLINE static bool valid_int(const char * const p) {
@@ -142,8 +147,12 @@ public:
       if (ind >= COUNT(param)) return false; // Only A-Z
       const bool b = TEST32(codebits, ind);
       if (b) {
-        char * const ptr = command_ptr + param[ind];
-        value_ptr = param[ind] && valid_float(ptr) ? ptr : nullptr;
+        if (param[ind]) {
+          char * const ptr = command_ptr + param[ind];
+          value_ptr = valid_number(ptr) ? ptr : nullptr;
+        }
+        else
+          value_ptr = nullptr;
       }
       return b;
     }
@@ -198,7 +207,7 @@ public:
     static inline bool seen(const char c) {
       char *p = strgchr(command_args, c);
       const bool b = !!p;
-      if (b) value_ptr = valid_float(&p[1]) ? &p[1] : nullptr;
+      if (b) value_ptr = valid_number(&p[1]) ? &p[1] : nullptr;
       return b;
     }
 
@@ -401,6 +410,25 @@ public:
   static inline float    linearval(const char c, const float dval=0)    { return seenval(c) ? value_linear_units() : dval; }
   static inline float    celsiusval(const char c, const float dval=0)   { return seenval(c) ? value_celsius()      : dval; }
 
+  #if ENABLED(MARLIN_DEV_MODE)
+
+    static inline uint8_t* hex_adr_val(const char c, uint8_t * const dval=nullptr) {
+      if (!seen(c) || *value_ptr != 'x') return dval;
+      uint8_t *out = nullptr;
+      for (char *vp = value_ptr + 1; HEXCHR(*vp) >= 0; vp++)
+        out = (uint8_t*)((uintptr_t(out) << 8) | HEXCHR(*vp));
+      return out;
+    }
+
+    static inline uint16_t hex_val(const char c, uint16_t const dval=0) {
+      if (!seen(c) || *value_ptr != 'x') return dval;
+      uint16_t out = 0;
+      for (char *vp = value_ptr + 1; HEXCHR(*vp) >= 0; vp++)
+        out = ((out) << 8) | HEXCHR(*vp);
+      return out;
+    }
+
+  #endif
 };
 
 extern GCodeParser parser;

Marlin/src/inc/Conditionals_LCD.h

@@ -226,9 +226,9 @@
     #define LCD_PROGRESS_BAR
   #endif
   #if ENABLED(TFTGLCD_PANEL_I2C)
-    #define LCD_USE_I2C_BUZZER              // Enable buzzer on LCD for I2C and SPI buses (LiquidTWI2 not required)
     #define LCD_I2C_ADDRESS           0x27  // Must be equal to panel's I2C slave addres
   #endif
+  #define LCD_USE_I2C_BUZZER                // Enable buzzer on LCD, used for both I2C and SPI buses (LiquidTWI2 not required)
   #define STD_ENCODER_PULSES_PER_STEP 2
   #define STD_ENCODER_STEPS_PER_MENU_ITEM 1
   #define LCD_WIDTH                   20    // 20 or 24 chars in line
@@ -603,10 +603,6 @@
   #define DO_SWITCH_EXTRUDER 1
 #endif
 
-#ifdef SWITCHING_NOZZLE_E1_SERVO_NR
-  #define SWITCHING_NOZZLE_TWO_SERVOS 1
-#endif
-
 /**
  * Default hotend offsets, if not defined
  */
@@ -657,14 +653,7 @@
   #ifndef Z_PROBE_SERVO_NR
     #define Z_PROBE_SERVO_NR 0
   #endif
-  #ifndef NUM_SERVOS
-    #define NUM_SERVOS (Z_PROBE_SERVO_NR + 1)
-  #endif
   #undef DEACTIVATE_SERVOS_AFTER_MOVE
-  #if NUM_SERVOS == 1
-    #undef SERVO_DELAY
-    #define SERVO_DELAY { 50 }
-  #endif
 
   // Always disable probe pin inverting for BLTouch
   #undef Z_MIN_PROBE_ENDSTOP_INVERTING
@@ -675,14 +664,10 @@
   #endif
 #endif
 
-#ifndef NUM_SERVOS
-  #define NUM_SERVOS 0
-#endif
-
 /**
  * Set a flag for a servo probe (or BLTouch)
  */
-#if defined(Z_PROBE_SERVO_NR) && Z_PROBE_SERVO_NR >= 0
+#ifdef Z_PROBE_SERVO_NR
   #define HAS_Z_SERVO_PROBE 1
 #endif
 #if ANY(HAS_Z_SERVO_PROBE, SWITCHING_EXTRUDER, SWITCHING_NOZZLE)

Marlin/src/inc/Conditionals_adv.h

@@ -26,6 +26,51 @@
  * Defines that depend on advanced configuration.
  */
 
+#ifdef SWITCHING_NOZZLE_E1_SERVO_NR
+  #define SWITCHING_NOZZLE_TWO_SERVOS 1
+#endif
+
+// Determine NUM_SERVOS if none was supplied
+#ifndef NUM_SERVOS
+  #define NUM_SERVOS 0
+  #if ANY(CHAMBER_VENT, HAS_Z_SERVO_PROBE, SWITCHING_EXTRUDER, SWITCHING_NOZZLE)
+    #if NUM_SERVOS <= Z_PROBE_SERVO_NR
+      #undef NUM_SERVOS
+      #define NUM_SERVOS (Z_PROBE_SERVO_NR + 1)
+    #endif
+    #if NUM_SERVOS <= CHAMBER_VENT_SERVO_NR
+      #undef NUM_SERVOS
+      #define NUM_SERVOS (CHAMBER_VENT_SERVO_NR + 1)
+    #endif
+    #if NUM_SERVOS <= SWITCHING_TOOLHEAD_SERVO_NR
+      #undef NUM_SERVOS
+      #define NUM_SERVOS (SWITCHING_TOOLHEAD_SERVO_NR + 1)
+    #endif
+    #if NUM_SERVOS <= SWITCHING_NOZZLE_SERVO_NR
+      #undef NUM_SERVOS
+      #define NUM_SERVOS (SWITCHING_NOZZLE_SERVO_NR + 1)
+    #endif
+    #if NUM_SERVOS <= SWITCHING_NOZZLE_E1_SERVO_NR
+      #undef NUM_SERVOS
+      #define NUM_SERVOS (SWITCHING_NOZZLE_E1_SERVO_NR + 1)
+    #endif
+    #if NUM_SERVOS <= SWITCHING_EXTRUDER_SERVO_NR
+      #undef NUM_SERVOS
+      #define NUM_SERVOS (SWITCHING_EXTRUDER_SERVO_NR + 1)
+    #endif
+    #if NUM_SERVOS <= SWITCHING_EXTRUDER_E23_SERVO_NR
+      #undef NUM_SERVOS
+      #define NUM_SERVOS (SWITCHING_EXTRUDER_E23_SERVO_NR + 1)
+    #endif
+  #endif
+#endif
+
+// Convenience override for a BLTouch alone
+#if ENABLED(BLTOUCH) && NUM_SERVOS == 1
+  #undef SERVO_DELAY
+  #define SERVO_DELAY { 50 }
+#endif
+
 #if EXTRUDERS == 0
   #define NO_VOLUMETRICS
   #undef TEMP_SENSOR_0

Marlin/src/inc/Conditionals_post.h

@@ -2457,7 +2457,7 @@
 /**
  * Buzzer/Speaker
  */
-#if PIN_EXISTS(BEEPER) || ANY(LCD_USE_I2C_BUZZER, PCA9632_BUZZER, IS_TFTGLCD_PANEL)
+#if PIN_EXISTS(BEEPER) || ANY(LCD_USE_I2C_BUZZER, PCA9632_BUZZER)
   #define HAS_BUZZER 1
   #if PIN_EXISTS(BEEPER)
     #define USE_BEEPER 1

Marlin/src/inc/MarlinConfig.h

@@ -27,21 +27,31 @@
 
 #include "MarlinConfigPre.h"
 
-#include "../HAL/HAL.h"
+#ifndef __MARLIN_DEPS__
+  #include "../HAL/HAL.h"
+#endif
 
 #include "../pins/pins.h"
-#include HAL_PATH(../HAL, timers.h)
-#include HAL_PATH(../HAL, spi_pins.h)
+
+#ifndef __MARLIN_DEPS__
+  #include HAL_PATH(../HAL, timers.h)
+  #include HAL_PATH(../HAL, spi_pins.h)
+#endif
 
 #include "Conditionals_post.h"
-#include HAL_PATH(../HAL, inc/Conditionals_post.h)
 
-#include "../core/types.h"  // Ahead of sanity-checks
+#ifndef __MARLIN_DEPS__
 
-#include "SanityCheck.h"
-#include HAL_PATH(../HAL, inc/SanityCheck.h)
+  #include HAL_PATH(../HAL, inc/Conditionals_post.h)
 
-// Include all core headers
-#include "../core/language.h"
-#include "../core/utility.h"
-#include "../core/serial.h"
+  #include "../core/types.h"  // Ahead of sanity-checks
+
+  #include "SanityCheck.h"
+  #include HAL_PATH(../HAL, inc/SanityCheck.h)
+
+  // Include all core headers
+  #include "../core/language.h"
+  #include "../core/utility.h"
+  #include "../core/serial.h"
+
+#endif

Marlin/src/inc/MarlinConfigPre.h

@@ -30,7 +30,9 @@
 //
 #include <stdint.h>
 
-#include "../HAL/platforms.h"
+#ifndef __MARLIN_DEPS__
+  #include "../HAL/platforms.h"
+#endif
 
 #include "../core/boards.h"
 #include "../core/macros.h"
@@ -45,10 +47,16 @@
 #include "Version.h"
 
 #include "Conditionals_LCD.h"
-#include HAL_PATH(../HAL, inc/Conditionals_LCD.h)
+
+#ifndef __MARLIN_DEPS__
+  #include HAL_PATH(../HAL, inc/Conditionals_LCD.h)
+#endif
 
 #include "../core/drivers.h"
 #include "../../Configuration_adv.h"
 
 #include "Conditionals_adv.h"
-#include HAL_PATH(../HAL, inc/Conditionals_adv.h)
+
+#ifndef __MARLIN_DEPS__
+  #include HAL_PATH(../HAL, inc/Conditionals_adv.h)
+#endif

Marlin/src/inc/SanityCheck.h

@@ -1249,8 +1249,10 @@ static_assert(Y_MAX_LENGTH >= Y_BED_SIZE, "Movement bounds (Y_MIN_POS, Y_MAX_POS
    * NUM_SERVOS is required for a Z servo probe
    */
   #if HAS_Z_SERVO_PROBE
-    #ifndef NUM_SERVOS
-      #error "You must set NUM_SERVOS for a Z servo probe (Z_PROBE_SERVO_NR)."
+    #if !NUM_SERVOS
+      #error "NUM_SERVOS is required for a Z servo probe (Z_PROBE_SERVO_NR)."
+    #elif Z_PROBE_SERVO_NR >= NUM_SERVOS
+      #error "Z_PROBE_SERVO_NR must be smaller than NUM_SERVOS."
     #elif Z_PROBE_SERVO_NR == 0 && !PIN_EXISTS(SERVO0)
       #error "SERVO0_PIN must be defined for your servo or BLTOUCH probe."
     #elif Z_PROBE_SERVO_NR == 1 && !PIN_EXISTS(SERVO1)
@@ -1259,8 +1261,6 @@ static_assert(Y_MAX_LENGTH >= Y_BED_SIZE, "Movement bounds (Y_MIN_POS, Y_MAX_POS
       #error "SERVO2_PIN must be defined for your servo or BLTOUCH probe."
     #elif Z_PROBE_SERVO_NR == 3 && !PIN_EXISTS(SERVO3)
       #error "SERVO3_PIN must be defined for your servo or BLTOUCH probe."
-    #elif Z_PROBE_SERVO_NR >= NUM_SERVOS
-      #error "Z_PROBE_SERVO_NR must be smaller than NUM_SERVOS."
     #endif
   #endif
 
@@ -1807,6 +1807,30 @@ static_assert(hbm[Z_AXIS] >= 0, "HOMING_BUMP_MM.Z must be greater than or equal
   #error "TEMP_SENSOR_CHAMBER requires TEMP_CHAMBER_PIN. Please add it to your configuration."
 #endif
 
+#if ENABLED(CHAMBER_FAN) && !(defined(CHAMBER_FAN_MODE) && WITHIN(CHAMBER_FAN_MODE, 0, 2))
+  #error "CHAMBER_FAN_MODE must be between 0 and 2. Please update your Configuration_adv.h."
+#endif
+
+#if ENABLED(CHAMBER_VENT)
+  #ifndef CHAMBER_VENT_SERVO_NR
+    #error "CHAMBER_VENT_SERVO_NR is required for CHAMBER SERVO. Update your Configuration_adv.h."
+  #elif !NUM_SERVOS
+    #error "NUM_SERVOS is required for a Heated Chamber vent servo (CHAMBER_VENT_SERVO_NR)."
+  #elif CHAMBER_VENT_SERVO_NR >= NUM_SERVOS
+    #error "CHAMBER_VENT_SERVO_NR must be smaller than NUM_SERVOS."
+  #elif HAS_Z_SERVO_PROBE && CHAMBER_VENT_SERVO_NR == Z_PROBE_SERVO_NR
+    #error "CHAMBER SERVO is already used by BLTOUCH. Please change."
+  #elif CHAMBER_VENT_SERVO_NR == 0 && !PIN_EXISTS(SERVO0)
+    #error "SERVO0_PIN must be defined for your Heated Chamber vent servo."
+  #elif CHAMBER_VENT_SERVO_NR == 1 && !PIN_EXISTS(SERVO1)
+    #error "SERVO1_PIN must be defined for your Heated Chamber vent servo."
+  #elif CHAMBER_VENT_SERVO_NR == 2 && !PIN_EXISTS(SERVO2)
+    #error "SERVO2_PIN must be defined for your Heated Chamber vent servo."
+  #elif CHAMBER_VENT_SERVO_NR == 3 && !PIN_EXISTS(SERVO3)
+    #error "SERVO3_PIN must be defined for your Heated Chamber vent servo."
+  #endif
+#endif
+
 #if TEMP_SENSOR_PROBE
   #if !PIN_EXISTS(TEMP_PROBE)
     #error "TEMP_SENSOR_PROBE requires TEMP_PROBE_PIN. Please add it to your configuration."