Update .gitignore

.editorconfig

@@ -1,19 +0,0 @@
-# editorconfig.org
-root = true
-
-[{*.patch,syntax_test_*}]
-trim_trailing_whitespace = false
-
-[{*.c,*.cpp,*.h}]
-charset = utf-8
-
-[{*.c,*.cpp,*.h,Makefile}]
-trim_trailing_whitespace = true
-insert_final_newline = true
-end_of_line = lf
-indent_style = space
-indent_size = 2
-
-[{*.py,*.conf,*.sublime-project}]
-indent_style = tab
-indent_size = 4

.github/FUNDING.yml

@@ -1,3 +1 @@
-github: [thinkyhead]
+custom: http://www.thinkyhead.com/donate-to-marlin
-patreon: thinkyhead
-custom: ["http://www.thinkyhead.com/donate-to-marlin"]

.github/workflows/bump-date.yml

@@ -1,35 +0,0 @@
-#
-# 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

@@ -1,33 +0,0 @@
-#
-# 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

@@ -1,27 +0,0 @@
-#
-# close-stale.yml
-# Close open issues after a period of inactivity
-#
-
-name: Close Stale Issues
-
-on:
-  schedule:
-  - cron: "22 1 * * *"
-
-jobs:
-  stale:
-    name: Close Stale Issues
-    if: github.repository == 'MarlinFirmware/Marlin'
-
-    runs-on: ubuntu-latest
-
-    steps:
-    - uses: actions/stale@v3
-      with:
-        repo-token: ${{ secrets.GITHUB_TOKEN }}
-        stale-issue-message: 'This issue is stale because it has been open 30 days with no activity. Remove stale label / comment or this will be closed in 5 days.'
-        days-before-stale: 30
-        days-before-close: 5
-        stale-issue-label: 'stale-closing-soon'
-        exempt-issue-labels: 'T: Feature Request'

.github/workflows/lock-closed.yml

@@ -1,32 +0,0 @@
-#
-# lock-closed.yml
-# Lock closed issues after a period of inactivity
-#
-
-name: Lock Closed Issues
-
-on:
-  schedule:
-    - cron: '0 1/13 * * *'
-
-jobs:
-  lock:
-    name: Lock Closed Issues
-    if: github.repository == 'MarlinFirmware/Marlin'
-
-    runs-on: ubuntu-latest
-
-    steps:
-    - uses: dessant/lock-threads@v2
-      with:
-        github-token: ${{ github.token }}
-        process-only: 'issues'
-        issue-lock-inactive-days: '60'
-        issue-exclude-created-before: ''
-        issue-exclude-labels: 'no-locking'
-        issue-lock-labels: ''
-        issue-lock-comment: >
-          This issue has been automatically locked since there
-          has not been any recent activity after it was closed.
-          Please open a new issue for related bugs.
-        issue-lock-reason: ''

.github/workflows/test-builds.yml

@@ -1,113 +0,0 @@
-#
-# test-builds.yml
-# Do test builds to catch compile errors
-#
-
-name: CI
-
-on:
-  pull_request:
-    branches:
-    - bugfix-2.0.x
-    paths-ignore:
-    - config/**
-    - data/**
-    - docs/**
-    - '**/*.md'
-  push:
-    branches:
-    - bugfix-2.0.x
-    paths-ignore:
-    - config/**
-    - data/**
-    - docs/**
-    - '**/*.md'
-
-jobs:
-  test_builds:
-    name: Run All Tests
-    if: github.repository == 'MarlinFirmware/Marlin'
-
-    runs-on: ubuntu-latest
-
-    strategy:
-      matrix:
-        test-platform:
-        # Base Environments
-
-        - DUE
-        - esp32
-        - linux_native
-        - mega2560
-        - teensy31
-        - teensy35
-        - SAMD51_grandcentral_m4
-
-        # Extended AVR Environments
-
-        - FYSETC_F6_13
-        - mega1280
-        - rambo
-        - sanguino1284p
-        - sanguino644p
-
-        # Extended STM32 Environments
-
-        - STM32F103RC_btt
-        - STM32F103RC_btt_USB
-        - STM32F103RE_btt
-        - STM32F103RE_btt_USB
-        - STM32F103RC_fysetc
-        - jgaurora_a5s_a1
-        - STM32F103VE_longer
-        - STM32F407VE_black
-        - BIGTREE_SKR_PRO
-        - BIGTREE_GTR_V1_0
-        - mks_robin
-        - ARMED
-        - FYSETC_S6
-
-        # Put lengthy tests last
-
-        - LPC1768
-        - LPC1769
-
-        # STM32 with non-STM framework. both broken for now. they should use HAL_STM32 which is working.
-
-        #- STM32F4
-        #- STM32F7
-
-        # Non-working environment tests
-
-        #- BIGTREE_BTT002
-        #- at90usb1286_cdc
-        #- at90usb1286_dfu
-        #- STM32F103CB_malyan
-        #- mks_robin_lite
-        #- mks_robin_mini
-        #- mks_robin_nano
-
-    steps:
-
-    - name: Select Python 3.7
-      uses: actions/setup-python@v1
-      with:
-        python-version: '3.7' # Version range or exact version of a Python version to use, using semvers version range syntax.
-        architecture: 'x64' # optional x64 or x86. Defaults to x64 if not specified
-
-    - name: Install PlatformIO
-      run: |
-        pip install -U https://github.com/platformio/platformio-core/archive/master.zip
-        platformio update
-
-    - name: Check out the PR
-      uses: actions/checkout@v2
-
-    - name: Run ${{ matrix.test-platform }} Tests
-      run: |
-        # Inline tests script
-        [[ "$GITHUB_REPOSITORY" == "MarlinFirmware/Marlin" ]] || exit 0
-        chmod +x buildroot/bin/*
-        chmod +x buildroot/share/tests/*
-        export PATH=./buildroot/bin/:./buildroot/share/tests/:${PATH}
-        run_tests . ${{ matrix.test-platform }}

.github/workflows/unlock-reopened.yml

@@ -1,22 +0,0 @@
-#
-# unlock-reopened.yml
-# Unlock an issue whenever it is re-opened
-#
-
-name: "Unlock reopened issue"
-
-on:
-  issues:
-    types: [reopened]
-
-jobs:
-  unlock:
-    name: Unlock Reopened
-    if: github.repository == 'MarlinFirmware/Marlin'
-
-    runs-on: ubuntu-latest
-
-    steps:
-    - uses: OSDKDev/unlock-issues@v1.1
-      with:
-        repo-token: "${{ secrets.GITHUB_TOKEN }}"

Marlin/Configuration.h

@@ -1,6 +1,6 @@
 /**
  * Marlin 3D Printer Firmware
- * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
+ * Copyright (c) 2019 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
  *
  * Based on Sprinter and grbl.
  * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
@@ -36,7 +36,7 @@
  * Advanced settings can be found in Configuration_adv.h
  *
  */
-#define CONFIGURATION_H_VERSION 020005
+#define CONFIGURATION_H_VERSION 020000
 
 //===========================================================================
 //============================= Getting Started =============================
@@ -99,7 +99,6 @@
 /**
  * Select the serial port on the board to use for communication with the host.
  * This allows the connection of wireless adapters (for instance) to non-default port pins.
- * Serial port -1 is the USB emulated serial port, if available.
  * Note: The first serial port (-1 or 0) will always be used by the Arduino bootloader.
  *
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7]
@@ -108,6 +107,9 @@
 
 /**
  * Select a secondary serial port on the board to use for communication with the host.
+ * This allows the connection of wireless adapters (for instance) to non-default port pins.
+ * Serial port -1 is the USB emulated serial port, if available.
+ *
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7]
  */
 //#define SERIAL_PORT_2 -1
@@ -141,7 +143,7 @@
 // @section extruder
 
 // This defines the number of extruders
-// :[1, 2, 3, 4, 5, 6, 7, 8]
+// :[1, 2, 3, 4, 5, 6]
 #define EXTRUDERS 1
 
 // Generally expected filament diameter (1.75, 2.85, 3.0, ...). Used for Volumetric, Filament Width Sensor, etc.
@@ -358,10 +360,8 @@
  *    -1 : thermocouple with AD595
  *     0 : not used
  *     1 : 100k thermistor - best choice for EPCOS 100k (4.7k pullup)
- *   331 : (3.3V scaled thermistor 1 table for MEGA)
+ *   331 : (3.3V scaled thermistor 1 table)
- *   332 : (3.3V scaled thermistor 1 table for DUE)
  *     2 : 200k thermistor - ATC Semitec 204GT-2 (4.7k pullup)
- *   202 : 200k thermistor - Copymaster 3D
  *     3 : Mendel-parts thermistor (4.7k pullup)
  *     4 : 10k thermistor !! do not use it for a hotend. It gives bad resolution at high temp. !!
  *     5 : 100K thermistor - ATC Semitec 104GT-2/104NT-4-R025H42G (Used in ParCan & J-Head) (4.7k pullup)
@@ -378,8 +378,7 @@
  *    13 : 100k Hisens 3950  1% up to 300°C for hotend "Simple ONE " & "Hotend "All In ONE"
  *    15 : 100k thermistor calibration for JGAurora A5 hotend
  *    18 : ATC Semitec 204GT-2 (4.7k pullup) Dagoma.Fr - MKS_Base_DKU001327
- *    20 : Pt100 with circuit in the Ultimainboard V2.x with 5v excitation (AVR)
+ *    20 : Pt100 with circuit in the Ultimainboard V2.x
- *    21 : Pt100 with circuit in the Ultimainboard V2.x with 3.3v excitation (STM32 \ LPC176x....)
  *   201 : Pt100 with circuit in Overlord, similar to Ultimainboard V2.x
  *    60 : 100k Maker's Tool Works Kapton Bed Thermistor beta=3950
  *    61 : 100k Formbot / Vivedino 3950 350C thermistor 4.7k pullup
@@ -412,10 +411,7 @@
 #define TEMP_SENSOR_3 0
 #define TEMP_SENSOR_4 0
 #define TEMP_SENSOR_5 0
-#define TEMP_SENSOR_6 0
-#define TEMP_SENSOR_7 0
 #define TEMP_SENSOR_BED 0
-#define TEMP_SENSOR_PROBE 0
 #define TEMP_SENSOR_CHAMBER 0
 
 // Dummy thermistor constant temperature readings, for use with 998 and 999
@@ -443,8 +439,6 @@
 #define HEATER_3_MINTEMP   5
 #define HEATER_4_MINTEMP   5
 #define HEATER_5_MINTEMP   5
-#define HEATER_6_MINTEMP   5
-#define HEATER_7_MINTEMP   5
 #define BED_MINTEMP        5
 
 // Above this temperature the heater will be switched off.
@@ -456,8 +450,6 @@
 #define HEATER_3_MAXTEMP 275
 #define HEATER_4_MAXTEMP 275
 #define HEATER_5_MAXTEMP 275
-#define HEATER_6_MAXTEMP 275
-#define HEATER_7_MAXTEMP 275
 #define BED_MAXTEMP      150
 
 //===========================================================================
@@ -473,7 +465,7 @@
 #if ENABLED(PIDTEMP)
   //#define PID_EDIT_MENU         // Add PID editing to the "Advanced Settings" menu. (~700 bytes of PROGMEM)
   //#define PID_AUTOTUNE_MENU     // Add PID auto-tuning to the "Advanced Settings" menu. (~250 bytes of PROGMEM)
-  //#define PID_DEBUG             // Sends debug data to the serial port. Use 'M303 D' to toggle activation.
+  //#define PID_DEBUG             // Sends debug data to the serial port.
   //#define PID_OPENLOOP 1        // Puts PID in open loop. M104/M140 sets the output power from 0 to PID_MAX
   //#define SLOW_PWM_HEATERS      // PWM with very low frequency (roughly 0.125Hz=8s) and minimum state time of approximately 1s useful for heaters driven by a relay
   //#define PID_PARAMS_PER_HOTEND // Uses separate PID parameters for each extruder (useful for mismatched extruders)
@@ -662,13 +654,12 @@
  *
  * A4988 is assumed for unspecified drivers.
  *
- * Options: A4988, A5984, DRV8825, LV8729, L6470, L6474, POWERSTEP01,
+ * Options: A4988, A5984, DRV8825, LV8729, L6470, TB6560, TB6600, TMC2100,
- *          TB6560, TB6600, TMC2100,
  *          TMC2130, TMC2130_STANDALONE, TMC2160, TMC2160_STANDALONE,
  *          TMC2208, TMC2208_STANDALONE, TMC2209, TMC2209_STANDALONE,
  *          TMC26X,  TMC26X_STANDALONE,  TMC2660, TMC2660_STANDALONE,
  *          TMC5130, TMC5130_STANDALONE, TMC5160, TMC5160_STANDALONE
- * :['A4988', 'A5984', 'DRV8825', 'LV8729', 'L6470', 'L6474', 'POWERSTEP01', 'TB6560', 'TB6600', 'TMC2100', 'TMC2130', 'TMC2130_STANDALONE', 'TMC2160', 'TMC2160_STANDALONE', 'TMC2208', 'TMC2208_STANDALONE', 'TMC2209', 'TMC2209_STANDALONE', 'TMC26X', 'TMC26X_STANDALONE', 'TMC2660', 'TMC2660_STANDALONE', 'TMC5130', 'TMC5130_STANDALONE', 'TMC5160', 'TMC5160_STANDALONE']
+ * :['A4988', 'A5984', 'DRV8825', 'LV8729', 'L6470', 'TB6560', 'TB6600', 'TMC2100', 'TMC2130', 'TMC2130_STANDALONE', 'TMC2160', 'TMC2160_STANDALONE', 'TMC2208', 'TMC2208_STANDALONE', 'TMC2209', 'TMC2209_STANDALONE', 'TMC26X', 'TMC26X_STANDALONE', 'TMC2660', 'TMC2660_STANDALONE', 'TMC5130', 'TMC5130_STANDALONE', 'TMC5160', 'TMC5160_STANDALONE']
  */
 //#define X_DRIVER_TYPE  A4988
 //#define Y_DRIVER_TYPE  A4988
@@ -677,15 +668,12 @@
 //#define Y2_DRIVER_TYPE A4988
 //#define Z2_DRIVER_TYPE A4988
 //#define Z3_DRIVER_TYPE A4988
-//#define Z4_DRIVER_TYPE A4988
 //#define E0_DRIVER_TYPE A4988
 //#define E1_DRIVER_TYPE A4988
 //#define E2_DRIVER_TYPE A4988
 //#define E3_DRIVER_TYPE A4988
 //#define E4_DRIVER_TYPE A4988
 //#define E5_DRIVER_TYPE A4988
-//#define E6_DRIVER_TYPE A4988
-//#define E7_DRIVER_TYPE A4988
 
 // Enable this feature if all enabled endstop pins are interrupt-capable.
 // This will remove the need to poll the interrupt pins, saving many CPU cycles.
@@ -783,8 +771,6 @@
   #define DEFAULT_YJERK 10.0
   #define DEFAULT_ZJERK  0.3
 
-  //#define TRAVEL_EXTRA_XYJERK 0.0     // Additional jerk allowance for all travel moves
-
   //#define LIMITED_JERK_EDITING        // Limit edit via M205 or LCD to DEFAULT_aJERK * 2
   #if ENABLED(LIMITED_JERK_EDITING)
     #define MAX_JERK_EDIT_VALUES { 20, 20, 0.6, 10 } // ...or, set your own edit limits
@@ -917,21 +903,6 @@
   #define Z_PROBE_RETRACT_X X_MAX_POS
 #endif
 
-// Duet Smart Effector (for delta printers) - https://bit.ly/2ul5U7J
-// When the pin is defined you can use M672 to set/reset the probe sensivity.
-//#define DUET_SMART_EFFECTOR
-#if ENABLED(DUET_SMART_EFFECTOR)
-  #define SMART_EFFECTOR_MOD_PIN  -1  // Connect a GPIO pin to the Smart Effector MOD pin
-#endif
-
-/**
- * Use StallGuard2 to probe the bed with the nozzle.
- * Requires stallGuard-capable Trinamic stepper drivers.
- * CAUTION: This can damage machines with Z lead screws.
- *          Take extreme care when setting up this feature.
- */
-//#define SENSORLESS_PROBING
-
 //
 // For Z_PROBE_ALLEN_KEY see the Delta example configurations.
 //
@@ -958,8 +929,7 @@
  */
 #define NOZZLE_TO_PROBE_OFFSET { 10, 10, 0 }
 
-// Most probes should stay away from the edges of the bed, but
+// Certain types of probes need to stay away from edges
-// with NOZZLE_AS_PROBE this can be negative for a wider probing area.
 #define MIN_PROBE_EDGE 10
 
 // X and Y axis travel speed (mm/m) between probes
@@ -1069,19 +1039,15 @@
 #define INVERT_E3_DIR false
 #define INVERT_E4_DIR false
 #define INVERT_E5_DIR false
-#define INVERT_E6_DIR false
-#define INVERT_E7_DIR false
 
 // @section homing
 
-//#define NO_MOTION_BEFORE_HOMING // Inhibit movement until all axes have been homed
+//#define NO_MOTION_BEFORE_HOMING  // Inhibit movement until all axes have been homed
 
-//#define UNKNOWN_Z_NO_RAISE      // Don't raise Z (lower the bed) if Z is "unknown." For beds that fall when Z is powered off.
+//#define UNKNOWN_Z_NO_RAISE // Don't raise Z (lower the bed) if Z is "unknown." For beds that fall when Z is powered off.
 
-//#define Z_HOMING_HEIGHT  4      // (mm) Minimal Z height before homing (G28) for Z clearance above the bed, clamps, ...
+//#define Z_HOMING_HEIGHT 4  // (mm) Minimal Z height before homing (G28) for Z clearance above the bed, clamps, ...
-                                  // Be sure to have this much clearance over your Z_MAX_POS to prevent grinding.
+                             // Be sure you have this distance over your Z_MAX_POS in case.
-
-//#define Z_AFTER_HOMING  10      // (mm) Height to move to after homing Z
 
 // Direction of endstops when homing; 1=MAX, -1=MIN
 // :[-1,1]
@@ -1243,7 +1209,6 @@
     #define MESH_TEST_HOTEND_TEMP  205    // (°C) Default nozzle temperature for the G26 Mesh Validation Tool.
     #define MESH_TEST_BED_TEMP      60    // (°C) Default bed temperature for the G26 Mesh Validation Tool.
     #define G26_XY_FEEDRATE         20    // (mm/s) Feedrate for XY Moves for the G26 Mesh Validation Tool.
-    #define G26_RETRACT_MULTIPLIER   1.0  // G26 Q (retraction) used by default between mesh test elements.
   #endif
 
 #endif
@@ -1323,10 +1288,10 @@
 //#define LEVEL_BED_CORNERS
 
 #if ENABLED(LEVEL_BED_CORNERS)
-  #define LEVEL_CORNERS_INSET_LFRB { 30, 30, 30, 30 } // (mm) Left, Front, Right, Back insets
+  #define LEVEL_CORNERS_INSET 30    // (mm) An inset for corner leveling
-  #define LEVEL_CORNERS_HEIGHT      0.0   // (mm) Z height of nozzle at leveling points
+  #define LEVEL_CORNERS_Z_HOP  4.0  // (mm) Move nozzle up before moving between corners
-  #define LEVEL_CORNERS_Z_HOP       4.0   // (mm) Z height of nozzle between leveling points
+  #define LEVEL_CORNERS_HEIGHT 0.0  // (mm) Z height of nozzle at leveling points
-  //#define LEVEL_CENTER_TOO              // Move to the center after the last corner
+  //#define LEVEL_CENTER_TOO        // Move to the center after the last corner
 #endif
 
 /**
@@ -1445,7 +1410,6 @@
 //#define EEPROM_SETTINGS     // Persistent storage with M500 and M501
 //#define DISABLE_M503        // Saves ~2700 bytes of PROGMEM. Disable for release!
 #define EEPROM_CHITCHAT       // Give feedback on EEPROM commands. Disable to save PROGMEM.
-#define EEPROM_BOOT_SILENT    // Keep M503 quiet and only give errors during first load
 #if ENABLED(EEPROM_SETTINGS)
   //#define EEPROM_AUTO_INIT  // Init EEPROM automatically on any errors.
 #endif
@@ -1460,6 +1424,11 @@
 #define DEFAULT_KEEPALIVE_INTERVAL 2  // Number of seconds between "busy" messages. Set with M113.
 #define BUSY_WHILE_HEATING            // Some hosts require "busy" messages even during heating
 
+//
+// M100 Free Memory Watcher
+//
+//#define M100_FREE_MEMORY_WATCHER    // Add M100 (Free Memory Watcher) to debug memory usage
+
 //
 // G20/G21 Inch mode support
 //
@@ -1550,10 +1519,9 @@
   // Default number of triangles
   #define NOZZLE_CLEAN_TRIANGLES  3
 
-  // Specify positions for each tool as { { X, Y, Z }, { X, Y, Z } }
+  // Specify positions as { X, Y, Z }
-  // Dual hotend system may use { {  -20, (Y_BED_SIZE / 2), (Z_MIN_POS + 1) },  {  420, (Y_BED_SIZE / 2), (Z_MIN_POS + 1) }}
+  #define NOZZLE_CLEAN_START_POINT {  30, 30, (Z_MIN_POS + 1) }
-  #define NOZZLE_CLEAN_START_POINT { {  30, 30, (Z_MIN_POS + 1) } }
+  #define NOZZLE_CLEAN_END_POINT   { 100, 60, (Z_MIN_POS + 1) }
-  #define NOZZLE_CLEAN_END_POINT   { { 100, 60, (Z_MIN_POS + 1) } }
 
   // Circular pattern radius
   #define NOZZLE_CLEAN_CIRCLE_RADIUS 6.5
@@ -1974,11 +1942,10 @@
 // FYSETC variant of the MINI12864 graphic controller with SD support
 // https://wiki.fysetc.com/Mini12864_Panel/
 //
-//#define FYSETC_MINI_12864_X_X    // Type C/D/E/F. No tunable RGB Backlight by default
+//#define FYSETC_MINI_12864_X_X  // Type C/D/E/F. No tunable RGB Backlight by default
-//#define FYSETC_MINI_12864_1_2    // Type C/D/E/F. Simple RGB Backlight (always on)
+//#define FYSETC_MINI_12864_1_2  // Type C/D/E/F. Simple RGB Backlight (always on)
-//#define FYSETC_MINI_12864_2_0    // Type A/B. Discreet RGB Backlight
+//#define FYSETC_MINI_12864_2_0  // Type A/B. Discreet RGB Backlight
-//#define FYSETC_MINI_12864_2_1    // Type A/B. Neopixel RGB Backlight
+//#define FYSETC_MINI_12864_2_1  // Type A/B. Neopixel RGB Backlight
-//#define FYSETC_GENERIC_12864_1_1 // Larger display with basic ON/OFF backlight.
 
 //
 // Factory display for Creality CR-10
@@ -1989,11 +1956,6 @@
 //
 //#define CR10_STOCKDISPLAY
 
-//
-// Ender-2 OEM display, a variant of the MKS_MINI_12864
-//
-//#define ENDER2_STOCKDISPLAY
-
 //
 // ANET and Tronxy Graphical Controller
 //
@@ -2062,11 +2024,9 @@
 //=============================================================================
 
 //
-// DGUS Touch Display with DWIN OS. (Choose one.)
+// DGUS Touch Display with DWIN OS
 //
-//#define DGUS_LCD_UI_ORIGIN
+//#define DGUS_LCD
-//#define DGUS_LCD_UI_FYSETC
-//#define DGUS_LCD_UI_HIPRECY
 
 //
 // Touch-screen LCD for Malyan M200 printers

Marlin/Makefile

@@ -180,95 +180,88 @@ else ifeq ($(HARDWARE_MOTHERBOARD),1105)
 else ifeq ($(HARDWARE_MOTHERBOARD),1106)
 # MKS v1.5 with Allegro A4982 stepper drivers
 else ifeq ($(HARDWARE_MOTHERBOARD),1107)
-# MKS v1.6 with Allegro A4982 stepper drivers
-else ifeq ($(HARDWARE_MOTHERBOARD),1108)
-
 # MKS BASE 1.0 with Heroic HR4982 stepper drivers
-else ifeq ($(HARDWARE_MOTHERBOARD),1109)
+else ifeq ($(HARDWARE_MOTHERBOARD),1108)
 # MKS GEN v1.3 or 1.4
-else ifeq ($(HARDWARE_MOTHERBOARD),1110)
+else ifeq ($(HARDWARE_MOTHERBOARD),1109)
 # MKS GEN L
-else ifeq ($(HARDWARE_MOTHERBOARD),1111)
+else ifeq ($(HARDWARE_MOTHERBOARD),1110)
 # zrib V2.0 control board (Chinese knock off RAMPS replica)
-else ifeq ($(HARDWARE_MOTHERBOARD),1112)
+else ifeq ($(HARDWARE_MOTHERBOARD),1111)
 # BigTreeTech or BIQU KFB2.0
-else ifeq ($(HARDWARE_MOTHERBOARD),1113)
+else ifeq ($(HARDWARE_MOTHERBOARD),1112)
 # Felix 2.0+ Electronics Board (RAMPS like)
-else ifeq ($(HARDWARE_MOTHERBOARD),1114)
+else ifeq ($(HARDWARE_MOTHERBOARD),1113)
 # Invent-A-Part RigidBoard
-else ifeq ($(HARDWARE_MOTHERBOARD),1115)
+else ifeq ($(HARDWARE_MOTHERBOARD),1114)
 # Invent-A-Part RigidBoard V2
-else ifeq ($(HARDWARE_MOTHERBOARD),1116)
+else ifeq ($(HARDWARE_MOTHERBOARD),1115)
 # Sainsmart 2-in-1 board
-else ifeq ($(HARDWARE_MOTHERBOARD),1117)
+else ifeq ($(HARDWARE_MOTHERBOARD),1116)
 # Ultimaker
-else ifeq ($(HARDWARE_MOTHERBOARD),1118)
+else ifeq ($(HARDWARE_MOTHERBOARD),1117)
 # Ultimaker (Older electronics. Pre 1.5.4. This is rare)
-else ifeq ($(HARDWARE_MOTHERBOARD),1119)
+else ifeq ($(HARDWARE_MOTHERBOARD),1118)
   MCU ?= atmega1280
 
 # Azteeg X3
-else ifeq ($(HARDWARE_MOTHERBOARD),1120)
+else ifeq ($(HARDWARE_MOTHERBOARD),1119)
 # Azteeg X3 Pro
-else ifeq ($(HARDWARE_MOTHERBOARD),1121)
+else ifeq ($(HARDWARE_MOTHERBOARD),1120)
 # Ultimainboard 2.x (Uses TEMP_SENSOR 20)
-else ifeq ($(HARDWARE_MOTHERBOARD),1122)
+else ifeq ($(HARDWARE_MOTHERBOARD),1121)
 # Rumba
-else ifeq ($(HARDWARE_MOTHERBOARD),1123)
+else ifeq ($(HARDWARE_MOTHERBOARD),1122)
 # Raise3D Rumba
-else ifeq ($(HARDWARE_MOTHERBOARD),1124)
+else ifeq ($(HARDWARE_MOTHERBOARD),1123)
 # Rapide Lite RL200 Rumba
-else ifeq ($(HARDWARE_MOTHERBOARD),1125)
+else ifeq ($(HARDWARE_MOTHERBOARD),1124)
 # Formbot T-Rex 2 Plus
-else ifeq ($(HARDWARE_MOTHERBOARD),1126)
+else ifeq ($(HARDWARE_MOTHERBOARD),1125)
 # Formbot T-Rex 3
-else ifeq ($(HARDWARE_MOTHERBOARD),1127)
+else ifeq ($(HARDWARE_MOTHERBOARD),1126)
 # Formbot Raptor
-else ifeq ($(HARDWARE_MOTHERBOARD),1128)
+else ifeq ($(HARDWARE_MOTHERBOARD),1127)
 # Formbot Raptor 2
-else ifeq ($(HARDWARE_MOTHERBOARD),1129)
+else ifeq ($(HARDWARE_MOTHERBOARD),1128)
 # bq ZUM Mega 3D
-else ifeq ($(HARDWARE_MOTHERBOARD),1130)
+else ifeq ($(HARDWARE_MOTHERBOARD),1129)
 # MakeBoard Mini v2.1.2 is a control board sold by MicroMake
-else ifeq ($(HARDWARE_MOTHERBOARD),1131)
+else ifeq ($(HARDWARE_MOTHERBOARD),1130)
 # TriGorilla Anycubic version 1.3 based on RAMPS EFB
-else ifeq ($(HARDWARE_MOTHERBOARD),1132)
+else ifeq ($(HARDWARE_MOTHERBOARD),1131)
 # TriGorilla Anycubic version 1.4 based on RAMPS EFB
-else ifeq ($(HARDWARE_MOTHERBOARD),1133)
+else ifeq ($(HARDWARE_MOTHERBOARD),1132)
 # TriGorilla Anycubic version 1.4 Rev 1.1
-else ifeq ($(HARDWARE_MOTHERBOARD),1134)
+else ifeq ($(HARDWARE_MOTHERBOARD),1133)
 # Creality: Ender-4, CR-8
-else ifeq ($(HARDWARE_MOTHERBOARD),1135)
+else ifeq ($(HARDWARE_MOTHERBOARD),1134)
 # Creality: CR10S, CR20, CR-X
-else ifeq ($(HARDWARE_MOTHERBOARD),1136)
+else ifeq ($(HARDWARE_MOTHERBOARD),1135)
 # Dagoma F5
+else ifeq ($(HARDWARE_MOTHERBOARD),1136)
+# FYSETC F6
 else ifeq ($(HARDWARE_MOTHERBOARD),1137)
-# FYSETC F6 1.3
-else ifeq ($(HARDWARE_MOTHERBOARD),1138)
-# FYSETC F6 1.5
-else ifeq ($(HARDWARE_MOTHERBOARD),1139)
 # Duplicator i3 Plus
-else ifeq ($(HARDWARE_MOTHERBOARD),1140)
+else ifeq ($(HARDWARE_MOTHERBOARD),1138)
 # VORON
-else ifeq ($(HARDWARE_MOTHERBOARD),1141)
+else ifeq ($(HARDWARE_MOTHERBOARD),1139)
 # TRONXY V3 1.0
-else ifeq ($(HARDWARE_MOTHERBOARD),1142)
+else ifeq ($(HARDWARE_MOTHERBOARD),1140)
 # Z-Bolt X Series
-else ifeq ($(HARDWARE_MOTHERBOARD),1143)
+else ifeq ($(HARDWARE_MOTHERBOARD),1141)
 # TT OSCAR
-else ifeq ($(HARDWARE_MOTHERBOARD),1144)
+else ifeq ($(HARDWARE_MOTHERBOARD),1142)
 # Overlord/Overlord Pro
-else ifeq ($(HARDWARE_MOTHERBOARD),1145)
+else ifeq ($(HARDWARE_MOTHERBOARD),1143)
 # ADIMLab Gantry v1
-else ifeq ($(HARDWARE_MOTHERBOARD),1146)
+else ifeq ($(HARDWARE_MOTHERBOARD),1144)
 # ADIMLab Gantry v2
-else ifeq ($(HARDWARE_MOTHERBOARD),1147)
+else ifeq ($(HARDWARE_MOTHERBOARD),1145)
 # BIQU Tango V1
-else ifeq ($(HARDWARE_MOTHERBOARD),1148)
+else ifeq ($(HARDWARE_MOTHERBOARD),1146)
 # MKS GEN L V2
-else ifeq ($(HARDWARE_MOTHERBOARD),1149)
+else ifeq ($(HARDWARE_MOTHERBOARD),1147)
-# Copymaster 3D
-else ifeq ($(HARDWARE_MOTHERBOARD),1150)
 
 #
 # RAMBo and derivatives

Marlin/Version.h

@@ -1,6 +1,6 @@
 /**
  * Marlin 3D Printer Firmware
- * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
+ * Copyright (c) 2019 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
  *
  * Based on Sprinter and grbl.
  * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
@@ -28,7 +28,7 @@
 /**
  * Marlin release version identifier
  */
-//#define SHORT_BUILD_VERSION "2.0.5.5"
+//#define SHORT_BUILD_VERSION "2.0.1.1"
 
 /**
  * Verbose version identifier which should contain a reference to the location

Marlin/src/HAL/DUE/fastio/G2_PWM.cpp

@@ -1,206 +0,0 @@
-/**
- * Marlin 3D Printer Firmware
- * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
- *
- * Based on Sprinter and grbl.
- * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
- *
- */
-
-/**
- * The PWM module is only used to generate interrupts at specified times. It
- * is NOT used to directly toggle pins. The ISR writes to the pin assigned to
- * that interrupt.
- *
- * All PWMs use the same repetition rate.  The G2 needs about 10KHz min in order to
- * not have obvious ripple on the Vref signals.
- *
- * The data structures are setup to minimize the computation done by the ISR which
- * minimizes ISR execution time.  Execution times are 0.8 to 1.1 microseconds.
- *
- * FIve PWM interrupt sources are used.  Channel 0 sets the base period.  All Vref
- * signals are set active when this counter overflows and resets to zero.  The compare
- * values in channels 1-4 are set to give the desired duty cycle for that Vref pin.
- * When counter 0 matches the compare value then that channel generates an interrupt.
- * The ISR checks the source of the interrupt and sets the corresponding pin inactive.
- *
- * Some jitter in the Vref signal is OK so the interrupt priority is left at its default value.
- */
-
-#include "../../../inc/MarlinConfig.h"
-
-#if MB(PRINTRBOARD_G2)
-
-#include "G2_PWM.h"
-
-#if PIN_EXISTS(MOTOR_CURRENT_PWM_X)
-  #define G2_PWM_X 1
-#else
-  #define G2_PWM_X 0
-#endif
-#if PIN_EXISTS(MOTOR_CURRENT_PWM_Y)
-  #define G2_PWM_Y 1
-#else
-  #define G2_PWM_Y 0
-#endif
-#if PIN_EXISTS(MOTOR_CURRENT_PWM_Z)
-  #define G2_PWM_Z 1
-#else
-  #define G2_PWM_Z 0
-#endif
-#if PIN_EXISTS(MOTOR_CURRENT_PWM_E)
-  #define G2_PWM_E 1
-#else
-  #define G2_PWM_E 0
-#endif
-#define G2_MASK_X(V) (G2_PWM_X * (V))
-#define G2_MASK_Y(V) (G2_PWM_Y * (V))
-#define G2_MASK_Z(V) (G2_PWM_Z * (V))
-#define G2_MASK_E(V) (G2_PWM_E * (V))
-
-volatile uint32_t *SODR_A = &PIOA->PIO_SODR,
-                  *SODR_B = &PIOB->PIO_SODR,
-                  *CODR_A = &PIOA->PIO_CODR,
-                  *CODR_B = &PIOB->PIO_CODR;
-
-PWM_map ISR_table[NUM_PWMS] = PWM_MAP_INIT;
-
-void Stepper::digipot_init() {
-
-  #if PIN_EXISTS(MOTOR_CURRENT_PWM_X)
-    OUT_WRITE(MOTOR_CURRENT_PWM_X_PIN, 0);  // init pins
-  #endif
-  #if PIN_EXISTS(MOTOR_CURRENT_PWM_Y)
-    OUT_WRITE(MOTOR_CURRENT_PWM_Y_PIN, 0);
-  #endif
-  #if G2_PWM_Z
-    OUT_WRITE(MOTOR_CURRENT_PWM_Z_PIN, 0);
-  #endif
-  #if G2_PWM_E
-    OUT_WRITE(MOTOR_CURRENT_PWM_E_PIN, 0);
-  #endif
-
-  #define WPKEY          (0x50574D << 8) // “PWM” in ASCII
-  #define WPCMD_DIS_SW   0  // command to disable Write Protect SW
-  #define WPRG_ALL       (PWM_WPCR_WPRG0 | PWM_WPCR_WPRG1 | PWM_WPCR_WPRG2 | PWM_WPCR_WPRG3 | PWM_WPCR_WPRG4 | PWM_WPCR_WPRG5)  // all Write Protect Groups
-
-  #define PWM_CLOCK_F    F_CPU / 1000000UL   // set clock to 1MHz
-
-  PMC->PMC_PCER1 = PMC_PCER1_PID36;                       // enable PWM controller clock (disabled on power up)
-
-  PWM->PWM_WPCR = WPKEY | WPRG_ALL | WPCMD_DIS_SW;        // enable setting of all PWM registers
-  PWM->PWM_CLK = PWM_CLOCK_F;                             // enable CLK_A and set it to 1MHz, leave CLK_B disabled
-  PWM->PWM_CH_NUM[0].PWM_CMR = 0b1011;                    // set channel 0 to Clock A input & to left aligned
-  if (G2_PWM_X) PWM->PWM_CH_NUM[1].PWM_CMR = 0b1011;      // set channel 1 to Clock A input & to left aligned
-  if (G2_PWM_Y) PWM->PWM_CH_NUM[2].PWM_CMR = 0b1011;      // set channel 2 to Clock A input & to left aligned
-  if (G2_PWM_Z) PWM->PWM_CH_NUM[3].PWM_CMR = 0b1011;      // set channel 3 to Clock A input & to left aligned
-  if (G2_PWM_E) PWM->PWM_CH_NUM[4].PWM_CMR = 0b1011;      // set channel 4 to Clock A input & to left aligned
-
-  PWM->PWM_CH_NUM[0].PWM_CPRD = PWM_PERIOD_US;            // set channel 0 Period
-
-  PWM->PWM_IER2 = PWM_IER1_CHID0;                         // generate interrupt when counter0 overflows
-  PWM->PWM_IER2 = PWM_IER2_CMPM0
-    | G2_MASK_X(PWM_IER2_CMPM1)
-    | G2_MASK_Y(PWM_IER2_CMPM2)
-    | G2_MASK_Z(PWM_IER2_CMPM3)
-    | G2_MASK_E(PWM_IER2_CMPM4)
-  ; // generate interrupt on compare event
-
-  if (G2_PWM_X) PWM->PWM_CMP[1].PWM_CMPV = 0x010000000LL | G2_VREF_COUNT(G2_VREF(motor_current_setting[0])); // interrupt when counter0 == CMPV - used to set Motor 1 PWM inactive
-  if (G2_PWM_Y) PWM->PWM_CMP[2].PWM_CMPV = 0x010000000LL | G2_VREF_COUNT(G2_VREF(motor_current_setting[0])); // interrupt when counter0 == CMPV - used to set Motor 2 PWM inactive
-  if (G2_PWM_Z) PWM->PWM_CMP[3].PWM_CMPV = 0x010000000LL | G2_VREF_COUNT(G2_VREF(motor_current_setting[1])); // interrupt when counter0 == CMPV - used to set Motor 3 PWM inactive
-  if (G2_PWM_E) PWM->PWM_CMP[4].PWM_CMPV = 0x010000000LL | G2_VREF_COUNT(G2_VREF(motor_current_setting[2])); // interrupt when counter0 == CMPV - used to set Motor 4 PWM inactive
-
-  if (G2_PWM_X) PWM->PWM_CMP[1].PWM_CMPM = 0x0001;  // enable compare event
-  if (G2_PWM_Y) PWM->PWM_CMP[2].PWM_CMPM = 0x0001;  // enable compare event
-  if (G2_PWM_Z) PWM->PWM_CMP[3].PWM_CMPM = 0x0001;  // enable compare event
-  if (G2_PWM_E) PWM->PWM_CMP[4].PWM_CMPM = 0x0001;  // enable compare event
-
-  PWM->PWM_SCM = PWM_SCM_UPDM_MODE0 | PWM_SCM_SYNC0
-    | G2_MASK_X(PWM_SCM_SYNC1)
-    | G2_MASK_Y(PWM_SCM_SYNC2)
-    | G2_MASK_Z(PWM_SCM_SYNC3)
-    | G2_MASK_E(PWM_SCM_SYNC4)
-  ; // sync 1-4 with 0, use mode 0 for updates
-
-  PWM->PWM_ENA = PWM_ENA_CHID0
-    | G2_MASK_X(PWM_ENA_CHID1)
-    | G2_MASK_Y(PWM_ENA_CHID2)
-    | G2_MASK_Z(PWM_ENA_CHID3)
-    | G2_MASK_E(PWM_ENA_CHID4)
-  ; // enable channels used by G2
-
-  PWM->PWM_IER1 = PWM_IER1_CHID0
-    | G2_MASK_X(PWM_IER1_CHID1)
-    | G2_MASK_Y(PWM_IER1_CHID2)
-    | G2_MASK_Z(PWM_IER1_CHID3)
-    | G2_MASK_E(PWM_IER1_CHID4)
-  ; // enable interrupts for channels used by G2
-
-  NVIC_EnableIRQ(PWM_IRQn);     // Enable interrupt handler
-  NVIC_SetPriority(PWM_IRQn, NVIC_EncodePriority(0, 10, 0));  // normal priority for PWM module (can stand some jitter on the Vref signals)
-}
-
-void Stepper::digipot_current(const uint8_t driver, const int16_t current) {
-
-  if (!(PWM->PWM_CH_NUM[0].PWM_CPRD == PWM_PERIOD_US)) digipot_init();  // Init PWM system if needed
-
-  switch (driver) {
-    case 0:
-      if (G2_PWM_X) PWM->PWM_CMP[1].PWM_CMPVUPD = 0x010000000LL | G2_VREF_COUNT(G2_VREF(current));    // update X & Y
-      if (G2_PWM_Y) PWM->PWM_CMP[2].PWM_CMPVUPD = 0x010000000LL | G2_VREF_COUNT(G2_VREF(current));
-      if (G2_PWM_X) PWM->PWM_CMP[1].PWM_CMPMUPD = 0x0001;  // enable compare event
-      if (G2_PWM_Y) PWM->PWM_CMP[2].PWM_CMPMUPD = 0x0001;  // enable compare event
-      if (G2_PWM_X || G2_PWM_Y) PWM->PWM_SCUC = PWM_SCUC_UPDULOCK; // tell the PWM controller to update the values on the next cycle
-      break;
-    case 1:
-      if (G2_PWM_Z) {
-        PWM->PWM_CMP[3].PWM_CMPVUPD = 0x010000000LL | G2_VREF_COUNT(G2_VREF(current));    // update Z
-        PWM->PWM_CMP[3].PWM_CMPMUPD = 0x0001;  // enable compare event
-        PWM->PWM_SCUC = PWM_SCUC_UPDULOCK; // tell the PWM controller to update the values on the next cycle
-      }
-      break;
-    default:
-      if (G2_PWM_E) {
-        PWM->PWM_CMP[4].PWM_CMPVUPD = 0x010000000LL | G2_VREF_COUNT(G2_VREF(current));    // update E
-        PWM->PWM_CMP[4].PWM_CMPMUPD = 0x0001;  // enable compare event
-        PWM->PWM_SCUC = PWM_SCUC_UPDULOCK; // tell the PWM controller to update the values on the next cycle
-      }
-      break;
-  }
-}
-
-volatile uint32_t PWM_ISR1_STATUS, PWM_ISR2_STATUS;
-
-void PWM_Handler() {
-  PWM_ISR1_STATUS = PWM->PWM_ISR1;
-  PWM_ISR2_STATUS = PWM->PWM_ISR2;
-  if (PWM_ISR1_STATUS & PWM_IER1_CHID0) {                                                         // CHAN_0 interrupt
-    if (G2_PWM_X) *ISR_table[0].set_register = ISR_table[0].write_mask;                           // set X to active
-    if (G2_PWM_Y) *ISR_table[1].set_register = ISR_table[1].write_mask;                           // set Y to active
-    if (G2_PWM_Z) *ISR_table[2].set_register = ISR_table[2].write_mask;                           // set Z to active
-    if (G2_PWM_E) *ISR_table[3].set_register = ISR_table[3].write_mask;                           // set E to active
-  }
-  else {
-    if (G2_PWM_X && (PWM_ISR2_STATUS & PWM_IER2_CMPM1)) *ISR_table[0].clr_register = ISR_table[0].write_mask; // set X to inactive
-    if (G2_PWM_Y && (PWM_ISR2_STATUS & PWM_IER2_CMPM2)) *ISR_table[1].clr_register = ISR_table[1].write_mask; // set Y to inactive
-    if (G2_PWM_Z && (PWM_ISR2_STATUS & PWM_IER2_CMPM3)) *ISR_table[2].clr_register = ISR_table[2].write_mask; // set Z to inactive
-    if (G2_PWM_E && (PWM_ISR2_STATUS & PWM_IER2_CMPM4)) *ISR_table[3].clr_register = ISR_table[3].write_mask; // set E to inactive
-  }
-  return;
-}
-
-#endif // PRINTRBOARD_G2

Marlin/src/HAL/DUE/inc/Conditionals_post.h

@@ -1,28 +0,0 @@
-/**
- * Marlin 3D Printer Firmware
- * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
- *
- * Based on Sprinter and grbl.
- * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
- *
- */
-#pragma once
-
-#if USE_FALLBACK_EEPROM
-  #undef SRAM_EEPROM_EMULATION
-  #undef SDCARD_EEPROM_EMULATION
-  #define FLASH_EEPROM_EMULATION
-#endif

Marlin/src/HAL/ESP32/inc/Conditionals_post.h

@@ -1,27 +0,0 @@
-/**
- * Marlin 3D Printer Firmware
- * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
- *
- * Based on Sprinter and grbl.
- * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
- *
- */
-#pragma once
-
-// If no real EEPROM, Flash emulation, or SRAM emulation is available fall back to SD emulation
-#if ENABLED(EEPROM_SETTINGS) && NONE(USE_WIRED_EEPROM, FLASH_EEPROM_EMULATION, SRAM_EEPROM_EMULATION)
-  #define SDCARD_EEPROM_EMULATION
-#endif

Marlin/src/HAL/HAL.h

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

Marlin/src/HAL/HAL_AVR/HAL.cpp

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

Marlin/src/HAL/HAL_AVR/HAL.h

@@ -1,6 +1,6 @@
 /**
  * Marlin 3D Printer Firmware
- * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
+ * Copyright (c) 2019 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
  * Copyright (c) 2016 Bob Cousins bobcousins42@googlemail.com
  *
  * This program is free software: you can redistribute it and/or modify
@@ -53,8 +53,8 @@
 //#define analogInputToDigitalPin(IO) IO
 
 #ifndef CRITICAL_SECTION_START
-  #define CRITICAL_SECTION_START()  unsigned char _sreg = SREG; cli()
+  #define CRITICAL_SECTION_START  unsigned char _sreg = SREG; cli()
-  #define CRITICAL_SECTION_END()    SREG = _sreg
+  #define CRITICAL_SECTION_END    SREG = _sreg
 #endif
 #define ISRS_ENABLED() TEST(SREG, SREG_I)
 #define ENABLE_ISRS()  sei()
@@ -91,37 +91,24 @@ typedef int8_t pin_t;
   #define NUM_SERIAL 1
 #else
   #if !WITHIN(SERIAL_PORT, -1, 3)
-    #error "SERIAL_PORT must be from -1 to 3. Please update your configuration."
+    #error "SERIAL_PORT must be from -1 to 3"
   #endif
 
   #define MYSERIAL0 customizedSerial1
 
   #ifdef SERIAL_PORT_2
     #if !WITHIN(SERIAL_PORT_2, -1, 3)
-      #error "SERIAL_PORT_2 must be from -1 to 3. Please update your configuration."
+      #error "SERIAL_PORT_2 must be from -1 to 3"
     #elif SERIAL_PORT_2 == SERIAL_PORT
-      #error "SERIAL_PORT_2 must be different than SERIAL_PORT. Please update your configuration."
+      #error "SERIAL_PORT_2 must be different than SERIAL_PORT"
     #endif
-    #define MYSERIAL1 customizedSerial2
     #define NUM_SERIAL 2
+    #define MYSERIAL1 customizedSerial2
   #else
     #define NUM_SERIAL 1
   #endif
 #endif
 
-#ifdef DGUS_SERIAL_PORT
-  #if !WITHIN(DGUS_SERIAL_PORT, -1, 3)
-    #error "DGUS_SERIAL_PORT must be from -1 to 3. Please update your configuration."
-  #elif DGUS_SERIAL_PORT == SERIAL_PORT
-    #error "DGUS_SERIAL_PORT must be different than SERIAL_PORT. Please update your configuration."
-  #elif defined(SERIAL_PORT_2) && DGUS_SERIAL_PORT == SERIAL_PORT_2
-    #error "DGUS_SERIAL_PORT must be different than SERIAL_PORT_2. Please update your configuration."
-  #endif
-  #define DGUS_SERIAL internalDgusSerial
-
-  #define DGUS_SERIAL_GET_TX_BUFFER_FREE DGUS_SERIAL.get_tx_buffer_free
-#endif
-
 // ------------------------
 // Public functions
 // ------------------------
@@ -358,9 +345,9 @@ void TIMER0_COMPB_vect_bottom()
 
 // ADC
 #ifdef DIDR2
-  #define HAL_ANALOG_SELECT(ind) do{ if (ind < 8) SBI(DIDR0, ind); else SBI(DIDR2, ind & 0x07); }while(0)
+  #define HAL_ANALOG_SELECT(pin) do{ if (pin < 8) SBI(DIDR0, pin); else SBI(DIDR2, pin & 0x07); }while(0)
 #else
-  #define HAL_ANALOG_SELECT(ind) SBI(DIDR0, ind);
+  #define HAL_ANALOG_SELECT(pin) do{ SBI(DIDR0, pin); }while(0)
 #endif
 
 inline void HAL_adc_init() {
@@ -371,11 +358,11 @@ inline void HAL_adc_init() {
   #endif
 }
 
-#define SET_ADMUX_ADCSRA(ch) ADMUX = _BV(REFS0) | (ch & 0x07); SBI(ADCSRA, ADSC)
+#define SET_ADMUX_ADCSRA(pin) ADMUX = _BV(REFS0) | (pin & 0x07); SBI(ADCSRA, ADSC)
 #ifdef MUX5
-  #define HAL_START_ADC(ch) if (ch > 7) ADCSRB = _BV(MUX5); else ADCSRB = 0; SET_ADMUX_ADCSRA(ch)
+  #define HAL_START_ADC(pin) if (pin > 7) ADCSRB = _BV(MUX5); else ADCSRB = 0; SET_ADMUX_ADCSRA(pin)
 #else
-  #define HAL_START_ADC(ch) ADCSRB = 0; SET_ADMUX_ADCSRA(ch)
+  #define HAL_START_ADC(pin) ADCSRB = 0; SET_ADMUX_ADCSRA(pin)
 #endif
 
 #define HAL_ADC_RESOLUTION 10

Marlin/src/HAL/HAL_AVR/HAL_SPI.cpp

@@ -1,6 +1,6 @@
 /**
  * Marlin 3D Printer Firmware
- * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
+ * Copyright (c) 2019 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
  *
  * Based on Sprinter and grbl.
  * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
@@ -197,7 +197,7 @@ void spiBegin() {
     // output pin high - like sending 0xFF
     WRITE(MOSI_PIN, HIGH);
 
-    LOOP_L_N(i, 8) {
+    for (uint8_t i = 0; i < 8; i++) {
       WRITE(SCK_PIN, HIGH);
 
       nop; // adjust so SCK is nice
@@ -224,7 +224,7 @@ void spiBegin() {
   void spiSend(uint8_t data) {
     // no interrupts during byte send - about 8µs
     cli();
-    LOOP_L_N(i, 8) {
+    for (uint8_t i = 0; i < 8; i++) {
       WRITE(SCK_PIN, LOW);
       WRITE(MOSI_PIN, data & 0x80);
       data <<= 1;

Marlin/src/HAL/HAL_AVR/MarlinSerial.cpp

@@ -1,6 +1,6 @@
 /**
  * Marlin 3D Printer Firmware
- * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
+ * Copyright (c) 2019 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
  *
  * Based on Sprinter and grbl.
  * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
@@ -41,7 +41,7 @@
 #if !defined(USBCON) && (defined(UBRRH) || defined(UBRR0H) || defined(UBRR1H) || defined(UBRR2H) || defined(UBRR3H))
 
   #include "MarlinSerial.h"
-  #include "../../MarlinCore.h"
+  #include "../../Marlin.h"
 
   template<typename Cfg> typename MarlinSerial<Cfg>::ring_buffer_r MarlinSerial<Cfg>::rx_buffer = { 0, 0, { 0 } };
   template<typename Cfg> typename MarlinSerial<Cfg>::ring_buffer_t MarlinSerial<Cfg>::tx_buffer = { 0 };
@@ -55,7 +55,7 @@
   // A SW memory barrier, to ensure GCC does not overoptimize loops
   #define sw_barrier() asm volatile("": : :"memory");
 
-  #include "../../feature/e_parser.h"
+  #include "../../feature/emergency_parser.h"
 
   // "Atomically" read the RX head index value without disabling interrupts:
   // This MUST be called with RX interrupts enabled, and CAN'T be called
@@ -682,7 +682,7 @@
 
     // Round correctly so that print(1.999, 2) prints as "2.00"
     double rounding = 0.5;
-    LOOP_L_N(i, digits) rounding *= 0.1;
+    for (uint8_t i = 0; i < digits; ++i) rounding *= 0.1;
     number += rounding;
 
     // Extract the integer part of the number and print it
@@ -757,33 +757,6 @@
 
 #endif
 
-#ifdef DGUS_SERIAL_PORT
-
-  template<typename Cfg>
-  typename MarlinSerial<Cfg>::ring_buffer_pos_t MarlinSerial<Cfg>::get_tx_buffer_free() {
-    const ring_buffer_pos_t t = tx_buffer.tail,  // next byte to send.
-                            h = tx_buffer.head;  // next pos for queue.
-    int ret = t - h - 1;
-    if (ret < 0) ret += Cfg::TX_SIZE + 1;
-    return ret;
-  }
-
-  ISR(SERIAL_REGNAME(USART,DGUS_SERIAL_PORT,_RX_vect)) {
-    MarlinSerial<MarlinInternalSerialCfg<DGUS_SERIAL_PORT>>::store_rxd_char();
-  }
-
-  ISR(SERIAL_REGNAME(USART,DGUS_SERIAL_PORT,_UDRE_vect)) {
-    MarlinSerial<MarlinInternalSerialCfg<DGUS_SERIAL_PORT>>::_tx_udr_empty_irq();
-  }
-
-  // Preinstantiate
-  template class MarlinSerial<MarlinInternalSerialCfg<DGUS_SERIAL_PORT>>;
-
-  // Instantiate
-  MarlinSerial<MarlinInternalSerialCfg<DGUS_SERIAL_PORT>> internalDgusSerial;
-
-#endif
-
 // For AT90USB targets use the UART for BT interfacing
 #if defined(USBCON) && ENABLED(BLUETOOTH)
   HardwareSerial bluetoothSerial;

Marlin/src/HAL/HAL_AVR/MarlinSerial.h

@@ -1,6 +1,6 @@
 /**
  * Marlin 3D Printer Firmware
- * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
+ * Copyright (c) 2019 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
  *
  * Based on Sprinter and grbl.
  * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
@@ -31,9 +31,9 @@
  * Templatized 01 October 2018 by Eduardo José Tagle to allow multiple instances
  */
 
-#include <WString.h>
+#include "../shared/MarlinSerial.h"
 
-#include "../../inc/MarlinConfigPre.h"
+#include <WString.h>
 
 #ifndef SERIAL_PORT
   #define SERIAL_PORT 0
@@ -217,9 +217,6 @@
       static ring_buffer_pos_t available();
       static void write(const uint8_t c);
       static void flushTX();
-      #ifdef DGUS_SERIAL_PORT
-        static ring_buffer_pos_t get_tx_buffer_free();
-      #endif
 
       FORCE_INLINE static uint8_t dropped() { return Cfg::DROPPED_RX ? rx_dropped_bytes : 0; }
       FORCE_INLINE static uint8_t buffer_overruns() { return Cfg::RX_OVERRUNS ? rx_buffer_overruns : 0; }
@@ -261,12 +258,12 @@
     static constexpr int PORT               = serial;
     static constexpr unsigned int RX_SIZE   = RX_BUFFER_SIZE;
     static constexpr unsigned int TX_SIZE   = TX_BUFFER_SIZE;
-    static constexpr bool XONOFF            = ENABLED(SERIAL_XON_XOFF);
+    static constexpr bool XONOFF            = bSERIAL_XON_XOFF;
-    static constexpr bool EMERGENCYPARSER   = ENABLED(EMERGENCY_PARSER);
+    static constexpr bool EMERGENCYPARSER   = bEMERGENCY_PARSER;
-    static constexpr bool DROPPED_RX        = ENABLED(SERIAL_STATS_DROPPED_RX);
+    static constexpr bool DROPPED_RX        = bSERIAL_STATS_DROPPED_RX;
-    static constexpr bool RX_OVERRUNS       = ENABLED(SERIAL_STATS_RX_BUFFER_OVERRUNS);
+    static constexpr bool RX_OVERRUNS       = bSERIAL_STATS_RX_BUFFER_OVERRUNS;
-    static constexpr bool RX_FRAMING_ERRORS = ENABLED(SERIAL_STATS_RX_FRAMING_ERRORS);
+    static constexpr bool RX_FRAMING_ERRORS = bSERIAL_STATS_RX_FRAMING_ERRORS;
-    static constexpr bool MAX_RX_QUEUED     = ENABLED(SERIAL_STATS_MAX_RX_QUEUED);
+    static constexpr bool MAX_RX_QUEUED     = bSERIAL_STATS_MAX_RX_QUEUED;
   };
   extern MarlinSerial<MarlinSerialCfg<SERIAL_PORT>> customizedSerial1;
 
@@ -295,23 +292,6 @@
   extern MarlinSerial<MarlinInternalSerialCfg<INTERNAL_SERIAL_PORT>> internalSerial;
 #endif
 
-#ifdef DGUS_SERIAL_PORT
-  template <uint8_t serial>
-  struct MarlinInternalSerialCfg {
-    static constexpr int PORT               = serial;
-    static constexpr unsigned int RX_SIZE   = 128;
-    static constexpr unsigned int TX_SIZE   = 48;
-    static constexpr bool XONOFF            = false;
-    static constexpr bool EMERGENCYPARSER   = false;
-    static constexpr bool DROPPED_RX        = false;
-    static constexpr bool RX_OVERRUNS       = HAS_DGUS_LCD && ENABLED(DGUS_SERIAL_STATS_RX_BUFFER_OVERRUNS);
-    static constexpr bool RX_FRAMING_ERRORS = false;
-    static constexpr bool MAX_RX_QUEUED     = false;
-  };
-
-  extern MarlinSerial<MarlinInternalSerialCfg<DGUS_SERIAL_PORT>> internalDgusSerial;
-#endif
-
 // Use the UART for Bluetooth in AT90USB configurations
 #if defined(USBCON) && ENABLED(BLUETOOTH)
   extern HardwareSerial bluetoothSerial;

Marlin/src/HAL/HAL_AVR/Servo.cpp

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

Marlin/src/HAL/HAL_AVR/ServoTimers.h

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

Marlin/src/HAL/HAL_AVR/endstop_interrupts.h

@@ -1,6 +1,6 @@
 /**
  * Marlin 3D Printer Firmware
- * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
+ * Copyright (c) 2019 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
  *
  * Based on Sprinter and grbl.
  * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
@@ -232,22 +232,6 @@ void setup_endstop_interrupts() {
       pciSetup(Z3_MIN_PIN);
     #endif
   #endif
-  #if HAS_Z4_MAX
-    #if (digitalPinToInterrupt(Z4_MAX_PIN) != NOT_AN_INTERRUPT)
-      _ATTACH(Z4_MAX_PIN);
-    #else
-      static_assert(digitalPinHasPCICR(Z4_MAX_PIN), "Z4_MAX_PIN is not interrupt-capable");
-      pciSetup(Z4_MAX_PIN);
-    #endif
-  #endif
-  #if HAS_Z4_MIN
-    #if (digitalPinToInterrupt(Z4_MIN_PIN) != NOT_AN_INTERRUPT)
-      _ATTACH(Z4_MIN_PIN);
-    #else
-      static_assert(digitalPinHasPCICR(Z4_MIN_PIN), "Z4_MIN_PIN is not interrupt-capable");
-      pciSetup(Z4_MIN_PIN);
-    #endif
-  #endif
   #if HAS_Z_MIN_PROBE_PIN
     #if (digitalPinToInterrupt(Z_MIN_PROBE_PIN) != NOT_AN_INTERRUPT)
       _ATTACH(Z_MIN_PROBE_PIN);

Marlin/src/HAL/HAL_AVR/fast_pwm.cpp

@@ -1,6 +1,6 @@
 /**
  * Marlin 3D Printer Firmware
- * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
+ * Copyright (c) 2019 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
  *
  * Based on Sprinter and grbl.
  * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
@@ -167,7 +167,7 @@ void set_pwm_frequency(const pin_t pin, int f_desired) {
     uint16_t prescaler[] = { 0, 1, 8, /*TIMER2 ONLY*/32, 64, /*TIMER2 ONLY*/128, 256, 1024 };
 
     // loop over prescaler values
-    LOOP_S_L_N(i, 1, 8) {
+    for (uint8_t i = 1; i < 8; i++) {
       uint16_t res_temp_fast = 255, res_temp_phase_correct = 255;
       if (timer.n == 2) {
         // No resolution calculation for TIMER2 unless enabled USE_OCR2A_AS_TOP

Marlin/src/HAL/HAL_AVR/fastio.cpp

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

Marlin/src/HAL/HAL_AVR/fastio.h

@@ -1,6 +1,6 @@
 /**
  * Marlin 3D Printer Firmware
- * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
+ * Copyright (c) 2019 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
  *
  * Based on Sprinter and grbl.
  * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
@@ -98,9 +98,9 @@
 
 #define SET_INPUT(IO)         _SET_INPUT(IO)
 #define SET_INPUT_PULLUP(IO)  do{ _SET_INPUT(IO); _WRITE(IO, HIGH); }while(0)
-#define SET_INPUT_PULLDOWN    SET_INPUT
 #define SET_OUTPUT(IO)        _SET_OUTPUT(IO)
-#define SET_PWM               SET_OUTPUT
+
+#define SET_PWM(IO)           SET_OUTPUT(IO)
 
 #define IS_INPUT(IO)          _IS_INPUT(IO)
 #define IS_OUTPUT(IO)         _IS_OUTPUT(IO)
@@ -279,25 +279,14 @@ enum ClockSource2 : char {
  */
 
 // Determine which harware PWMs are already in use
-#define _PWM_CHK_FAN_B(P) (P == E0_AUTO_FAN_PIN || P == E1_AUTO_FAN_PIN || P == E2_AUTO_FAN_PIN || P == E3_AUTO_FAN_PIN || P == E4_AUTO_FAN_PIN || P == E5_AUTO_FAN_PIN || P == E6_AUTO_FAN_PIN || P == E7_AUTO_FAN_PIN || P == CHAMBER_AUTO_FAN_PIN)
 #if PIN_EXISTS(CONTROLLER_FAN)
-  #define PWM_CHK_FAN_B(P) (_PWM_CHK_FAN_B(P) || P == CONTROLLER_FAN_PIN)
+  #define PWM_CHK_FAN_B(P) (P == CONTROLLER_FAN_PIN || P == E0_AUTO_FAN_PIN || P == E1_AUTO_FAN_PIN || P == E2_AUTO_FAN_PIN || P == E3_AUTO_FAN_PIN || P == E4_AUTO_FAN_PIN || P == E5_AUTO_FAN_PIN || P == CHAMBER_AUTO_FAN_PIN)
 #else
-  #define PWM_CHK_FAN_B(P) _PWM_CHK_FAN_B(P)
+  #define PWM_CHK_FAN_B(P) (P == E0_AUTO_FAN_PIN || P == E1_AUTO_FAN_PIN || P == E2_AUTO_FAN_PIN || P == E3_AUTO_FAN_PIN || P == E4_AUTO_FAN_PIN || P == E5_AUTO_FAN_PIN || P == CHAMBER_AUTO_FAN_PIN)
 #endif
 
-#if ANY_PIN(FAN, FAN1, FAN2, FAN3, FAN4, FAN5, FAN6, FAN7)
+#if ANY_PIN(FAN, FAN1, FAN2)
-  #if PIN_EXISTS(FAN7)
+  #if PIN_EXISTS(FAN2)
-    #define PWM_CHK_FAN_A(P) (P == FAN0_PIN || P == FAN1_PIN || P == FAN2_PIN || P == FAN3_PIN || P == FAN4_PIN || P == FAN5_PIN || P == FAN6_PIN || P == FAN7_PIN)
-  #elif PIN_EXISTS(FAN6)
-    #define PWM_CHK_FAN_A(P) (P == FAN0_PIN || P == FAN1_PIN || P == FAN2_PIN || P == FAN3_PIN || P == FAN4_PIN || P == FAN5_PIN || P == FAN6_PIN)
-  #elif PIN_EXISTS(FAN5)
-    #define PWM_CHK_FAN_A(P) (P == FAN0_PIN || P == FAN1_PIN || P == FAN2_PIN || P == FAN3_PIN || P == FAN4_PIN || P == FAN5_PIN)
-  #elif PIN_EXISTS(FAN4)
-    #define PWM_CHK_FAN_A(P) (P == FAN0_PIN || P == FAN1_PIN || P == FAN2_PIN || P == FAN3_PIN || P == FAN4_PIN)
-  #elif PIN_EXISTS(FAN3)
-    #define PWM_CHK_FAN_A(P) (P == FAN0_PIN || P == FAN1_PIN || P == FAN2_PIN || P == FAN3_PIN)
-  #elif PIN_EXISTS(FAN2)
     #define PWM_CHK_FAN_A(P) (P == FAN0_PIN || P == FAN1_PIN || P == FAN2_PIN)
   #elif PIN_EXISTS(FAN1)
     #define PWM_CHK_FAN_A(P) (P == FAN0_PIN || P == FAN1_PIN)

Marlin/src/HAL/HAL_AVR/fastio/fastio_1280.h

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

Marlin/src/HAL/HAL_AVR/fastio/fastio_1281.h

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

Marlin/src/HAL/HAL_AVR/fastio/fastio_168.h

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

Marlin/src/HAL/HAL_AVR/fastio/fastio_644.h

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

Marlin/src/HAL/HAL_AVR/fastio/fastio_AT90USB.h

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

Marlin/src/HAL/HAL_AVR/inc/Conditionals_LCD.h

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

Marlin/src/HAL/HAL_AVR/inc/Conditionals_adv.h

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

Marlin/src/HAL/HAL_AVR/inc/Conditionals_post.h

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

Marlin/src/HAL/HAL_AVR/inc/SanityCheck.h

@@ -1,6 +1,6 @@
 /**
  * Marlin 3D Printer Firmware
- * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
+ * Copyright (c) 2019 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
  *
  * Based on Sprinter and grbl.
  * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
@@ -56,10 +56,6 @@
 /**
  * The Trinamic library includes SoftwareSerial.h, leading to a compile error.
  */
-#if HAS_TRINAMIC_CONFIG && ENABLED(ENDSTOP_INTERRUPTS_FEATURE)
+#if HAS_TRINAMIC && ENABLED(ENDSTOP_INTERRUPTS_FEATURE)
   #error "TMCStepper includes SoftwareSerial.h which is incompatible with ENDSTOP_INTERRUPTS_FEATURE. Disable ENDSTOP_INTERRUPTS_FEATURE to continue."
 #endif
-
-#if HAS_TMC_SW_SERIAL && ENABLED(MONITOR_DRIVER_STATUS)
-  #error "MONITOR_DRIVER_STATUS causes performance issues when used with SoftwareSerial-connected drivers. Disable MONITOR_DRIVER_STATUS or use hardware serial to continue."
-#endif

Marlin/src/HAL/HAL_AVR/math.h

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

Marlin/src/HAL/HAL_AVR/persistent_store_eeprom.cpp

@@ -1,6 +1,6 @@
 /**
  * Marlin 3D Printer Firmware
- * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
+ * Copyright (c) 2019 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
  *
  * Based on Sprinter and grbl.
  * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
@@ -25,7 +25,7 @@
 
 #if EITHER(EEPROM_SETTINGS, SD_FIRMWARE_UPDATE)
 
-#include "../shared/eeprom_api.h"
+#include "../shared/persistent_store_api.h"
 
 bool PersistentStore::access_start() { return true; }
 bool PersistentStore::access_finish() { return true; }
@@ -39,7 +39,7 @@ bool PersistentStore::write_data(int &pos, const uint8_t *value, size_t size, ui
     if (v != eeprom_read_byte(p)) {
       eeprom_write_byte(p, v);
       if (eeprom_read_byte(p) != v) {
-        SERIAL_ECHO_MSG(STR_ERR_EEPROM_WRITE);
+        SERIAL_ECHO_MSG(MSG_ERR_EEPROM_WRITE);
         return true;
       }
     }

Marlin/src/HAL/HAL_AVR/pinsDebug.h

@@ -1,6 +1,6 @@
 /**
  * Marlin 3D Printer Firmware
- * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
+ * Copyright (c) 2019 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -70,12 +70,12 @@
 
 void PRINT_ARRAY_NAME(uint8_t x) {
   char *name_mem_pointer = (char*)pgm_read_ptr(&pin_array[x].name);
-  LOOP_L_N(y, MAX_NAME_LENGTH) {
+  for (uint8_t y = 0; y < MAX_NAME_LENGTH; y++) {
     char temp_char = pgm_read_byte(name_mem_pointer + y);
     if (temp_char != 0)
       SERIAL_CHAR(temp_char);
     else {
-      LOOP_L_N(i, MAX_NAME_LENGTH - y) SERIAL_CHAR(' ');
+      for (uint8_t i = 0; i < MAX_NAME_LENGTH - y; i++) SERIAL_CHAR(' ');
       break;
     }
   }
@@ -231,10 +231,11 @@ static void err_is_interrupt()   { SERIAL_ECHOPGM("   compare interrupt enabled"
 static void err_prob_interrupt() { SERIAL_ECHOPGM("   overflow interrupt enabled"); }
 static void print_is_also_tied() { SERIAL_ECHOPGM(" is also tied to this pin"); SERIAL_ECHO_SP(14); }
 
-inline void com_print(const uint8_t N, const uint8_t Z) {
+void com_print(uint8_t N, uint8_t Z) {
   const uint8_t *TCCRA = (uint8_t*)TCCR_A(N);
   SERIAL_ECHOPGM("    COM");
-  SERIAL_CHAR('0' + N, Z);
+  SERIAL_CHAR('0' + N);
+  SERIAL_CHAR('A' + Z);
   SERIAL_ECHOPAIR(": ", int((*TCCRA >> (6 - Z * 2)) & 0x03));
 }
 
@@ -246,7 +247,8 @@ void timer_prefix(uint8_t T, char L, uint8_t N) {  // T - timer    L - pwm  N -
   if (N == 4) WGM |= ((*TCCRB & _BV(WGM_3)) >> 1);
 
   SERIAL_ECHOPGM("    TIMER");
-  SERIAL_CHAR(T + '0', L);
+  SERIAL_CHAR(T + '0');
+  SERIAL_CHAR(L);
   SERIAL_ECHO_SP(3);
 
   if (N == 3) {

Marlin/src/HAL/HAL_AVR/pinsDebug_Teensyduino.h

@@ -1,6 +1,6 @@
 /**
  * Marlin 3D Printer Firmware
- * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
+ * Copyright (c) 2019 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by

Marlin/src/HAL/HAL_AVR/pinsDebug_plus_70.h

@@ -1,6 +1,6 @@
 /**
  * Marlin 3D Printer Firmware
- * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
+ * Copyright (c) 2019 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by

Marlin/src/HAL/HAL_AVR/spi_pins.h

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

Marlin/src/HAL/HAL_AVR/u8g_com_HAL_AVR_sw_spi.cpp

@@ -1,6 +1,6 @@
 /**
  * Marlin 3D Printer Firmware
- * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
+ * Copyright (c) 2019 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
  *
  * Based on Sprinter and grbl.
  * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
@@ -88,7 +88,7 @@ void u8g_spiSend_sw_AVR_mode_0(uint8_t val) {
   volatile uint8_t *outData = u8g_outData,
                    *outClock = u8g_outClock;
   U8G_ATOMIC_START();
-  LOOP_L_N(i, 8) {
+  for (uint8_t i = 0; i < 8; i++) {
     if (val & 0x80)
       *outData |= bitData;
     else
@@ -108,7 +108,7 @@ void u8g_spiSend_sw_AVR_mode_3(uint8_t val) {
   volatile uint8_t *outData = u8g_outData,
                    *outClock = u8g_outClock;
   U8G_ATOMIC_START();
-  LOOP_L_N(i, 8) {
+  for (uint8_t i = 0; i < 8; i++) {
     *outClock &= bitNotClock;
     if (val & 0x80)
       *outData |= bitData;

Marlin/src/HAL/HAL_AVR/watchdog.cpp

@@ -1,6 +1,6 @@
 /**
  * Marlin 3D Printer Firmware
- * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
+ * Copyright (c) 2019 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
  *
  * Based on Sprinter and grbl.
  * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
@@ -28,7 +28,7 @@
 
 #include "watchdog.h"
 
-#include "../../MarlinCore.h"
+#include "../../Marlin.h"
 
 // Initialize watchdog with 8s timeout, if possible. Otherwise, make it 4s.
 void watchdog_init() {
@@ -62,7 +62,7 @@ void watchdog_init() {
 #if ENABLED(WATCHDOG_RESET_MANUAL)
   ISR(WDT_vect) {
     sei();  // With the interrupt driven serial we need to allow interrupts.
-    SERIAL_ERROR_MSG(STR_WATCHDOG_FIRED);
+    SERIAL_ERROR_MSG(MSG_WATCHDOG_FIRED);
     minkill();  // interrupt-safe final kill and infinite loop
   }
 #endif

Marlin/src/HAL/HAL_AVR/watchdog.h

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

Marlin/src/HAL/HAL_DUE/DebugMonitor.cpp

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

Marlin/src/HAL/HAL_DUE/EepromEmulation.cpp

@@ -1,24 +1,3 @@
-/**
- * Marlin 3D Printer Firmware
- * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
- *
- * Based on Sprinter and grbl.
- * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
- *
- */
 
 /* EEPROM emulation over flash with reduced wear
  *
@@ -54,10 +33,10 @@
 
 #include "../../inc/MarlinConfig.h"
 
-#if ENABLED(FLASH_EEPROM_EMULATION)
+#if ENABLED(EEPROM_SETTINGS) && NONE(I2C_EEPROM, SPI_EEPROM)
 
 #include "../shared/Marduino.h"
-#include "../shared/eeprom_api.h"
+#include "../shared/persistent_store_api.h"
 
 #define EEPROMSize     4096
 #define PagesPerGroup   128
@@ -1016,5 +995,5 @@ void eeprom_flush() {
   ee_Flush();
 }
 
-#endif // FLASH_EEPROM_EMULATION
+#endif // EEPROM_SETTINGS && (!I2C_EEPROM && !SPI_EEPROM)
 #endif // ARDUINO_ARCH_AVR

Marlin/src/HAL/HAL_DUE/HAL.cpp

@@ -1,6 +1,6 @@
 /**
  * Marlin 3D Printer Firmware
- * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
+ * Copyright (c) 2019 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
  * Copyright (c) 2016 Bob Cousins bobcousins42@googlemail.com
  *
  * This program is free software: you can redistribute it and/or modify
@@ -94,8 +94,8 @@ int freeMemory() {
 // ADC
 // ------------------------
 
-void HAL_adc_start_conversion(const uint8_t ch) {
+void HAL_adc_start_conversion(const uint8_t adc_pin) {
-  HAL_adc_result = analogRead(ch);
+  HAL_adc_result = analogRead(adc_pin);
 }
 
 uint16_t HAL_adc_get_result() {

Marlin/src/HAL/HAL_DUE/HAL.h

@@ -1,7 +1,7 @@
 /**
  * Marlin 3D Printer Firmware
  *
- * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
+ * Copyright (c) 2019 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
  * Copyright (c) 2016 Bob Cousins bobcousins42@googlemail.com
  * Copyright (c) 2015-2016 Nico Tonnhofer wurstnase.reprap@gmail.com
  *
@@ -39,7 +39,7 @@
 #include <stdint.h>
 
 // Define MYSERIAL0/1 before MarlinSerial includes!
-#if SERIAL_PORT == -1 || ENABLED(EMERGENCY_PARSER)
+#if SERIAL_PORT == -1
   #define MYSERIAL0 customizedSerial1
 #elif SERIAL_PORT == 0
   #define MYSERIAL0 Serial
@@ -56,7 +56,8 @@
 #ifdef SERIAL_PORT_2
   #if SERIAL_PORT_2 == SERIAL_PORT
     #error "SERIAL_PORT_2 must be different from SERIAL_PORT. Please update your configuration."
-  #elif SERIAL_PORT_2 == -1 || ENABLED(EMERGENCY_PARSER)
+  #endif
+  #if SERIAL_PORT_2 == -1
     #define MYSERIAL1 customizedSerial2
   #elif SERIAL_PORT_2 == 0
     #define MYSERIAL1 Serial
@@ -74,26 +75,6 @@
   #define NUM_SERIAL 1
 #endif
 
-#ifdef DGUS_SERIAL_PORT
-  #if DGUS_SERIAL_PORT == SERIAL_PORT
-    #error "DGUS_SERIAL_PORT must be different from SERIAL_PORT. Please update your configuration."
-  #elif defined(SERIAL_PORT_2) && DGUS_SERIAL_PORT == SERIAL_PORT_2
-    #error "DGUS_SERIAL_PORT must be different than SERIAL_PORT_2. Please update your configuration."
-  #elif DGUS_SERIAL_PORT == -1
-    #define DGUS_SERIAL internalDgusSerial
-  #elif DGUS_SERIAL_PORT == 0
-    #define DGUS_SERIAL Serial
-  #elif DGUS_SERIAL_PORT == 1
-    #define DGUS_SERIAL Serial1
-  #elif DGUS_SERIAL_PORT == 2
-    #define DGUS_SERIAL Serial2
-  #elif DGUS_SERIAL_PORT == 3
-    #define DGUS_SERIAL Serial3
-  #else
-    #error "DGUS_SERIAL_PORT must be from -1 to 3. Please update your configuration."
-  #endif
-#endif
-
 #include "MarlinSerial.h"
 #include "MarlinSerialUSB.h"
 
@@ -118,8 +99,8 @@ typedef int8_t pin_t;
 //
 // Interrupts
 //
-#define CRITICAL_SECTION_START()  uint32_t primask = __get_PRIMASK(); __disable_irq()
+#define CRITICAL_SECTION_START  uint32_t primask = __get_PRIMASK(); __disable_irq()
-#define CRITICAL_SECTION_END()    if (!primask) __enable_irq()
+#define CRITICAL_SECTION_END    if (!primask) __enable_irq()
 #define ISRS_ENABLED() (!__get_PRIMASK())
 #define ENABLE_ISRS()  __enable_irq()
 #define DISABLE_ISRS() __disable_irq()
@@ -147,16 +128,16 @@ extern uint16_t HAL_adc_result;     // result of last ADC conversion
   #define analogInputToDigitalPin(p) ((p < 12u) ? (p) + 54u : -1)
 #endif
 
-#define HAL_ANALOG_SELECT(ch)
+#define HAL_ANALOG_SELECT(pin)
 
 inline void HAL_adc_init() {}//todo
 
-#define HAL_START_ADC(ch)   HAL_adc_start_conversion(ch)
+#define HAL_START_ADC(pin)  HAL_adc_start_conversion(pin)
 #define HAL_ADC_RESOLUTION  10
 #define HAL_READ_ADC()      HAL_adc_result
 #define HAL_ADC_READY()     true
 
-void HAL_adc_start_conversion(const uint8_t ch);
+void HAL_adc_start_conversion(const uint8_t adc_pin);
 uint16_t HAL_adc_get_result();
 
 //

Marlin/src/HAL/HAL_DUE/HAL_SPI.cpp

@@ -1,6 +1,6 @@
 /**
  * Marlin 3D Printer Firmware
- * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
+ * Copyright (c) 2019 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
  *
  * Based on Sprinter and grbl.
  * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
@@ -240,7 +240,7 @@
   }
 
   // all the others
-  static uint32_t spiDelayCyclesX4 = (F_CPU) / 1000000; // 4µs => 125khz
+  static uint32_t spiDelayCyclesX4 = (F_CPU) / 1000000; // 4uS => 125khz
 
   static uint8_t spiTransferX(uint8_t b) { // using Mode 0
     int bits = 8;

Marlin/src/HAL/HAL_DUE/InterruptVectors.cpp

@@ -1,6 +1,6 @@
 /**
  * Marlin 3D Printer Firmware
- * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
+ * Copyright (c) 2019 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
  *
  * Based on Sprinter and grbl.
  * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
@@ -63,13 +63,13 @@ static pfnISR_Handler* get_relocated_table_addr() {
   memcpy(&ram_tab, romtab, sizeof(ram_tab));
 
   // Disable global interrupts
-  CRITICAL_SECTION_START();
+  CRITICAL_SECTION_START;
 
   // Set the vector table base address to the SRAM copy
   SCB->VTOR = (uint32_t)(&ram_tab);
 
   // Reenable interrupts
-  CRITICAL_SECTION_END();
+  CRITICAL_SECTION_END;
 
   // Return the address of the table
   return (pfnISR_Handler*)(&ram_tab);
@@ -80,7 +80,7 @@ pfnISR_Handler install_isr(IRQn_Type irq, pfnISR_Handler newHandler) {
   pfnISR_Handler *isrtab = get_relocated_table_addr();
 
   // Disable global interrupts
-  CRITICAL_SECTION_START();
+  CRITICAL_SECTION_START;
 
   // Get the original handler
   pfnISR_Handler oldHandler = isrtab[irq + 16];
@@ -89,7 +89,7 @@ pfnISR_Handler install_isr(IRQn_Type irq, pfnISR_Handler newHandler) {
   isrtab[irq + 16] = newHandler;
 
   // Reenable interrupts
-  CRITICAL_SECTION_END();
+  CRITICAL_SECTION_END;
 
   // Return the original one
   return oldHandler;

Marlin/src/HAL/HAL_DUE/InterruptVectors.h

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

Marlin/src/HAL/HAL_DUE/MarlinSerial.cpp

@@ -1,6 +1,6 @@
 /**
  * Marlin 3D Printer Firmware
- * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
+ * Copyright (c) 2019 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
  *
  * Based on Sprinter and grbl.
  * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
@@ -31,7 +31,7 @@
 
 #include "MarlinSerial.h"
 #include "InterruptVectors.h"
-#include "../../MarlinCore.h"
+#include "../../Marlin.h"
 
 template<typename Cfg> typename MarlinSerial<Cfg>::ring_buffer_r MarlinSerial<Cfg>::rx_buffer = { 0, 0, { 0 } };
 template<typename Cfg> typename MarlinSerial<Cfg>::ring_buffer_t MarlinSerial<Cfg>::tx_buffer = { 0 };
@@ -45,7 +45,7 @@ template<typename Cfg> typename MarlinSerial<Cfg>::ring_buffer_pos_t MarlinSeria
 // A SW memory barrier, to ensure GCC does not overoptimize loops
 #define sw_barrier() asm volatile("": : :"memory");
 
-#include "../../feature/e_parser.h"
+#include "../../feature/emergency_parser.h"
 
 // (called with RX interrupts disabled)
 template<typename Cfg>
@@ -606,7 +606,7 @@ void MarlinSerial<Cfg>::printFloat(double number, uint8_t digits) {
 
   // Round correctly so that print(1.999, 2) prints as "2.00"
   double rounding = 0.5;
-  LOOP_L_N(i, digits) rounding *= 0.1;
+  for (uint8_t i = 0; i < digits; ++i) rounding *= 0.1;
   number += rounding;
 
   // Extract the integer part of the number and print it
@@ -629,13 +629,23 @@ void MarlinSerial<Cfg>::printFloat(double number, uint8_t digits) {
 
 // If not using the USB port as serial port
 #if SERIAL_PORT >= 0
-  template class MarlinSerial<MarlinSerialCfg<SERIAL_PORT>>;      // Define
+
-  MarlinSerial<MarlinSerialCfg<SERIAL_PORT>> customizedSerial1;   // Instantiate
+  // Preinstantiate
+  template class MarlinSerial<MarlinSerialCfg<SERIAL_PORT>>;
+
+  // Instantiate
+  MarlinSerial<MarlinSerialCfg<SERIAL_PORT>> customizedSerial1;
+
 #endif
 
-#if defined(SERIAL_PORT_2) && SERIAL_PORT_2 >= 0
+#ifdef SERIAL_PORT_2
-  template class MarlinSerial<MarlinSerialCfg<SERIAL_PORT_2>>;    // Define
+
-  MarlinSerial<MarlinSerialCfg<SERIAL_PORT_2>> customizedSerial2; // Instantiate
+  // Preinstantiate
+  template class MarlinSerial<MarlinSerialCfg<SERIAL_PORT_2>>;
+
+  // Instantiate
+  MarlinSerial<MarlinSerialCfg<SERIAL_PORT_2>> customizedSerial2;
+
 #endif
 
 #endif // ARDUINO_ARCH_SAM

Marlin/src/HAL/HAL_DUE/MarlinSerial.h

@@ -1,6 +1,6 @@
 /**
  * Marlin 3D Printer Firmware
- * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
+ * Copyright (c) 2019 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
  *
  * Based on Sprinter and grbl.
  * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
@@ -27,9 +27,9 @@
  * Based on MarlinSerial for AVR, copyright (c) 2006 Nicholas Zambetti.  All right reserved.
  */
 
-#include <WString.h>
+#include "../shared/MarlinSerial.h"
 
-#include "../../inc/MarlinConfigPre.h"
+#include <WString.h>
 
 #define DEC 10
 #define HEX 16
@@ -163,18 +163,22 @@ struct MarlinSerialCfg {
   static constexpr int PORT               = serial;
   static constexpr unsigned int RX_SIZE   = RX_BUFFER_SIZE;
   static constexpr unsigned int TX_SIZE   = TX_BUFFER_SIZE;
-  static constexpr bool XONOFF            = ENABLED(SERIAL_XON_XOFF);
+  static constexpr bool XONOFF            = bSERIAL_XON_XOFF;
-  static constexpr bool EMERGENCYPARSER   = ENABLED(EMERGENCY_PARSER);
+  static constexpr bool EMERGENCYPARSER   = bEMERGENCY_PARSER;
-  static constexpr bool DROPPED_RX        = ENABLED(SERIAL_STATS_DROPPED_RX);
+  static constexpr bool DROPPED_RX        = bSERIAL_STATS_DROPPED_RX;
-  static constexpr bool RX_OVERRUNS       = ENABLED(SERIAL_STATS_RX_BUFFER_OVERRUNS);
+  static constexpr bool RX_OVERRUNS       = bSERIAL_STATS_RX_BUFFER_OVERRUNS;
-  static constexpr bool RX_FRAMING_ERRORS = ENABLED(SERIAL_STATS_RX_FRAMING_ERRORS);
+  static constexpr bool RX_FRAMING_ERRORS = bSERIAL_STATS_RX_FRAMING_ERRORS;
-  static constexpr bool MAX_RX_QUEUED     = ENABLED(SERIAL_STATS_MAX_RX_QUEUED);
+  static constexpr bool MAX_RX_QUEUED     = bSERIAL_STATS_MAX_RX_QUEUED;
 };
 
 #if SERIAL_PORT >= 0
-  extern MarlinSerial<MarlinSerialCfg<SERIAL_PORT>> customizedSerial1;
-#endif
 
-#if defined(SERIAL_PORT_2) && SERIAL_PORT_2 >= 0
+  extern MarlinSerial<MarlinSerialCfg<SERIAL_PORT>> customizedSerial1;
+
+#endif // SERIAL_PORT >= 0
+
+#ifdef SERIAL_PORT_2
+
   extern MarlinSerial<MarlinSerialCfg<SERIAL_PORT_2>> customizedSerial2;
+
 #endif

Marlin/src/HAL/HAL_DUE/MarlinSerialUSB.cpp

@@ -1,6 +1,6 @@
 /**
  * Marlin 3D Printer Firmware
- * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
+ * Copyright (c) 2019 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
  *
  * Based on Sprinter and grbl.
  * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
@@ -29,12 +29,12 @@
 
 #include "../../inc/MarlinConfig.h"
 
-#if HAS_USB_SERIAL
+#if SERIAL_PORT == -1
 
 #include "MarlinSerialUSB.h"
 
 #if ENABLED(EMERGENCY_PARSER)
-  #include "../../feature/e_parser.h"
+  #include "../../feature/emergency_parser.h"
 #endif
 
 // Imports from Atmel USB Stack/CDC implementation
@@ -259,7 +259,7 @@ void MarlinSerialUSB::printFloat(double number, uint8_t digits) {
 
   // Round correctly so that print(1.999, 2) prints as "2.00"
   double rounding = 0.5;
-  LOOP_L_N(i, digits)
+  for (uint8_t i = 0; i < digits; ++i)
     rounding *= 0.1;
 
   number += rounding;
@@ -283,12 +283,8 @@ void MarlinSerialUSB::printFloat(double number, uint8_t digits) {
 }
 
 // Preinstantiate
-#if SERIAL_PORT == -1
+MarlinSerialUSB customizedSerial1;
-  MarlinSerialUSB customizedSerial1;
+
-#endif
+#endif // SERIAL_PORT == -1
-#if SERIAL_PORT_2 == -1
-  MarlinSerialUSB customizedSerial2;
-#endif
 
-#endif // HAS_USB_SERIAL
 #endif // ARDUINO_ARCH_SAM

Marlin/src/HAL/HAL_DUE/MarlinSerialUSB.h

@@ -1,6 +1,6 @@
 /**
  * Marlin 3D Printer Firmware
- * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
+ * Copyright (c) 2019 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
  *
  * Based on Sprinter and grbl.
  * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
@@ -28,7 +28,7 @@
 
 #include "../../inc/MarlinConfig.h"
 
-#if HAS_USB_SERIAL
+#if SERIAL_PORT == -1
 
 #include <WString.h>
 
@@ -88,12 +88,6 @@ private:
   static void printFloat(double, uint8_t);
 };
 
-#if SERIAL_PORT == -1
+extern MarlinSerialUSB customizedSerial1;
-  extern MarlinSerialUSB customizedSerial1;
-#endif
 
-#if SERIAL_PORT_2 == -1
+#endif // SERIAL_PORT == -1
-  extern MarlinSerialUSB customizedSerial2;
-#endif
-
-#endif // HAS_USB_SERIAL

Marlin/src/HAL/HAL_DUE/Servo.cpp

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

Marlin/src/HAL/HAL_DUE/Tone.cpp

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

Marlin/src/HAL/HAL_DUE/dogm/u8g_com_HAL_DUE_shared_hw_spi.cpp

@@ -1,6 +1,6 @@
 /**
  * Marlin 3D Printer Firmware
- * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
+ * Copyright (c) 2019 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
  *
  * Based on Sprinter and grbl.
  * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
@@ -63,7 +63,7 @@
 
 #include <U8glib.h>
 
-#include "../../../MarlinCore.h"
+#include "../../../Marlin.h"
 
 void spiBegin();
 void spiInit(uint8_t spiRate);

Marlin/src/HAL/HAL_DUE/dogm/u8g_com_HAL_DUE_st7920_sw_spi.cpp

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

Marlin/src/HAL/HAL_DUE/dogm/u8g_com_HAL_DUE_sw_spi.cpp

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

Marlin/src/HAL/HAL_DUE/dogm/u8g_com_HAL_DUE_sw_spi_shared.cpp

@@ -1,6 +1,6 @@
 /**
  * Marlin 3D Printer Firmware
- * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
+ * Copyright (c) 2019 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
  *
  * Based on Sprinter and grbl.
  * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
@@ -80,7 +80,7 @@ Pio *SCK_pPio, *MOSI_pPio;
 uint32_t SCK_dwMask, MOSI_dwMask;
 
 void u8g_spiSend_sw_DUE_mode_0(uint8_t val) { // 3MHz
-  LOOP_L_N(i, 8) {
+  for (uint8_t i = 0; i < 8; i++) {
     if (val & 0x80)
       MOSI_pPio->PIO_SODR = MOSI_dwMask;
     else
@@ -94,7 +94,7 @@ void u8g_spiSend_sw_DUE_mode_0(uint8_t val) { // 3MHz
 }
 
 void u8g_spiSend_sw_DUE_mode_3(uint8_t val) { // 3.5MHz
-  LOOP_L_N(i, 8) {
+  for (uint8_t i = 0; i < 8; i++) {
     SCK_pPio->PIO_CODR = SCK_dwMask;
     DELAY_NS(50);
     if (val & 0x80)

Marlin/src/HAL/HAL_DUE/dogm/u8g_com_HAL_DUE_sw_spi_shared.h

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

Marlin/src/HAL/HAL_DUE/endstop_interrupts.h

@@ -1,6 +1,6 @@
 /**
  * Marlin 3D Printer Firmware
- * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
+ * Copyright (c) 2019 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
  *
  * Based on Sprinter and grbl.
  * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
@@ -77,12 +77,6 @@ void setup_endstop_interrupts() {
   #if HAS_Z3_MIN
     _ATTACH(Z3_MIN_PIN);
   #endif
-  #if HAS_Z4_MAX
-    _ATTACH(Z4_MAX_PIN);
-  #endif
-  #if HAS_Z4_MIN
-    _ATTACH(Z4_MIN_PIN);
-  #endif
   #if HAS_Z_MIN_PROBE_PIN
     _ATTACH(Z_MIN_PROBE_PIN);
   #endif

Marlin/src/HAL/HAL_DUE/fastio.h

@@ -1,6 +1,6 @@
 /**
  * Marlin 3D Printer Firmware
- * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
+ * Copyright (c) 2019 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
  *
  * Based on Sprinter and grbl.
  * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
@@ -166,7 +166,7 @@
 // Set pin as output (wrapper) -  reads the pin and sets the output to that value
 #define SET_OUTPUT(IO)       _SET_OUTPUT(IO)
 // Set pin as PWM
-#define SET_PWM               SET_OUTPUT
+#define SET_PWM(IO)           SET_OUTPUT(IO)
 
 // Check if pin is an input
 #define IS_INPUT(IO)         ((digitalPinToPort(IO)->PIO_OSR & digitalPinToBitMask(IO)) == 0)

Marlin/src/HAL/HAL_DUE/fastio/G2_PWM.cpp

@@ -0,0 +1,145 @@
+/**
+ * Marlin 3D Printer Firmware
+ * Copyright (c) 2019 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
+ *
+ * Based on Sprinter and grbl.
+ * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+/**
+ * The PWM module is only used to generate interrupts at specified times. It
+ * is NOT used to directly toggle pins. The ISR writes to the pin assigned to
+ * that interrupt.
+ *
+ * All PWMs use the same repetition rate.  The G2 needs about 10KHz min in order to
+ * not have obvious ripple on the Vref signals.
+ *
+ * The data structures are setup to minimize the computation done by the ISR which
+ * minimizes ISR execution time.  Execution times are 0.8 to 1.1 microseconds.
+ *
+ * FIve PWM interrupt sources are used.  Channel 0 sets the base period.  All Vref
+ * signals are set active when this counter overflows and resets to zero.  The compare
+ * values in channels 1-4 are set to give the desired duty cycle for that Vref pin.
+ * When counter 0 matches the compare value then that channel generates an interrupt.
+ * The ISR checks the source of the interrupt and sets the corresponding pin inactive.
+ *
+ * Some jitter in the Vref signal is OK so the interrupt priority is left at its default value.
+ */
+
+#include "../../../inc/MarlinConfig.h"
+
+#if MB(PRINTRBOARD_G2)
+
+#include "G2_PWM.h"
+
+volatile uint32_t *SODR_A = &PIOA->PIO_SODR,
+                  *SODR_B = &PIOB->PIO_SODR,
+                  *CODR_A = &PIOA->PIO_CODR,
+                  *CODR_B = &PIOB->PIO_CODR;
+
+PWM_map ISR_table[NUM_PWMS] = PWM_MAP_INIT;
+
+void Stepper::digipot_init() {
+
+  OUT_WRITE(MOTOR_CURRENT_PWM_X_PIN, 0);  // init pins
+  OUT_WRITE(MOTOR_CURRENT_PWM_Y_PIN, 0);
+  OUT_WRITE(MOTOR_CURRENT_PWM_Z_PIN, 0);
+  OUT_WRITE(MOTOR_CURRENT_PWM_E_PIN, 0);
+
+  #define WPKEY          (0x50574D << 8) // “PWM” in ASCII
+  #define WPCMD_DIS_SW   0  // command to disable Write Protect SW
+  #define WPRG_ALL       (PWM_WPCR_WPRG0 | PWM_WPCR_WPRG1 | PWM_WPCR_WPRG2 | PWM_WPCR_WPRG3 | PWM_WPCR_WPRG4 | PWM_WPCR_WPRG5)  // all Write Protect Groups
+
+  #define PWM_CLOCK_F    F_CPU / 1000000UL   // set clock to 1MHz
+
+  PMC->PMC_PCER1 = PMC_PCER1_PID36;                       // enable PWM controller clock (disabled on power up)
+
+  PWM->PWM_WPCR = WPKEY | WPRG_ALL | WPCMD_DIS_SW;        // enable setting of all PWM registers
+  PWM->PWM_CLK = PWM_CLOCK_F;                             // enable CLK_A and set it to 1MHz, leave CLK_B disabled
+  PWM->PWM_CH_NUM[0].PWM_CMR = 0b1011;                    // set channel 0 to Clock A input & to left aligned
+  PWM->PWM_CH_NUM[1].PWM_CMR = 0b1011;                    // set channel 1 to Clock A input & to left aligned
+  PWM->PWM_CH_NUM[2].PWM_CMR = 0b1011;                    // set channel 2 to Clock A input & to left aligned
+  PWM->PWM_CH_NUM[3].PWM_CMR = 0b1011;                    // set channel 3 to Clock A input & to left aligned
+  PWM->PWM_CH_NUM[4].PWM_CMR = 0b1011;                    // set channel 4 to Clock A input & to left aligned
+
+  PWM->PWM_CH_NUM[0].PWM_CPRD = PWM_PERIOD_US;            // set channel 0 Period
+
+  PWM->PWM_IER2 = PWM_IER1_CHID0;                         // generate interrupt when counter0 overflows
+  PWM->PWM_IER2 = PWM_IER2_CMPM0 | PWM_IER2_CMPM1 | PWM_IER2_CMPM2 | PWM_IER2_CMPM3 | PWM_IER2_CMPM4;        // generate interrupt on compare event
+
+  PWM->PWM_CMP[1].PWM_CMPV = 0x010000000LL | G2_VREF_COUNT(G2_VREF(motor_current_setting[0]));   // interrupt when counter0 == CMPV - used to set Motor 1 PWM inactive
+  PWM->PWM_CMP[2].PWM_CMPV = 0x010000000LL | G2_VREF_COUNT(G2_VREF(motor_current_setting[0]));   // interrupt when counter0 == CMPV - used to set Motor 2 PWM inactive
+  PWM->PWM_CMP[3].PWM_CMPV = 0x010000000LL | G2_VREF_COUNT(G2_VREF(motor_current_setting[1]));   // interrupt when counter0 == CMPV - used to set Motor 3 PWM inactive
+  PWM->PWM_CMP[4].PWM_CMPV = 0x010000000LL | G2_VREF_COUNT(G2_VREF(motor_current_setting[2]));   // interrupt when counter0 == CMPV - used to set Motor 4 PWM inactive
+
+  PWM->PWM_CMP[1].PWM_CMPM = 0x0001;  // enable compare event
+  PWM->PWM_CMP[2].PWM_CMPM = 0x0001;  // enable compare event
+  PWM->PWM_CMP[3].PWM_CMPM = 0x0001;  // enable compare event
+  PWM->PWM_CMP[4].PWM_CMPM = 0x0001;  // enable compare event
+
+  PWM->PWM_SCM = PWM_SCM_UPDM_MODE0 | PWM_SCM_SYNC0 | PWM_SCM_SYNC1 | PWM_SCM_SYNC2 | PWM_SCM_SYNC3 | PWM_SCM_SYNC4; // sync 1-4 with 0, use mode 0 for updates
+
+  PWM->PWM_ENA = PWM_ENA_CHID0 | PWM_ENA_CHID1 | PWM_ENA_CHID2 | PWM_ENA_CHID3 | PWM_ENA_CHID4;         // enable the channels used by G2
+  PWM->PWM_IER1 = PWM_IER1_CHID0 | PWM_IER1_CHID1 | PWM_IER1_CHID2 | PWM_IER1_CHID3 | PWM_IER1_CHID4;        // enable interrupts for the channels used by G2
+
+  NVIC_EnableIRQ(PWM_IRQn);     // Enable interrupt handler
+  NVIC_SetPriority(PWM_IRQn, NVIC_EncodePriority(0, 10, 0));  // normal priority for PWM module (can stand some jitter on the Vref signals)
+}
+
+void Stepper::digipot_current(const uint8_t driver, const int16_t current) {
+
+  if (!(PWM->PWM_CH_NUM[0].PWM_CPRD == PWM_PERIOD_US)) digipot_init();  // Init PWM system if needed
+
+  switch (driver) {
+    case 0: PWM->PWM_CMP[1].PWM_CMPVUPD = 0x010000000LL | G2_VREF_COUNT(G2_VREF(current));    // update X & Y
+            PWM->PWM_CMP[2].PWM_CMPVUPD = 0x010000000LL | G2_VREF_COUNT(G2_VREF(current));
+            PWM->PWM_CMP[1].PWM_CMPMUPD = 0x0001;  // enable compare event
+            PWM->PWM_CMP[2].PWM_CMPMUPD = 0x0001;  // enable compare event
+            PWM->PWM_SCUC = PWM_SCUC_UPDULOCK; // tell the PWM controller to update the values on the next cycle
+            break;
+    case 1: PWM->PWM_CMP[3].PWM_CMPVUPD = 0x010000000LL | G2_VREF_COUNT(G2_VREF(current));    // update Z
+            PWM->PWM_CMP[3].PWM_CMPMUPD = 0x0001;  // enable compare event
+            PWM->PWM_SCUC = PWM_SCUC_UPDULOCK; // tell the PWM controller to update the values on the next cycle
+            break;
+    default:PWM->PWM_CMP[4].PWM_CMPVUPD = 0x010000000LL | G2_VREF_COUNT(G2_VREF(current));    // update E
+            PWM->PWM_CMP[4].PWM_CMPMUPD = 0x0001;  // enable compare event
+            PWM->PWM_SCUC = PWM_SCUC_UPDULOCK; // tell the PWM controller to update the values on the next cycle
+            break;
+  }
+}
+
+volatile uint32_t PWM_ISR1_STATUS, PWM_ISR2_STATUS;
+
+void PWM_Handler() {
+  PWM_ISR1_STATUS = PWM->PWM_ISR1;
+  PWM_ISR2_STATUS = PWM->PWM_ISR2;
+  if (PWM_ISR1_STATUS & PWM_IER1_CHID0) {                           // CHAN_0 interrupt
+    *ISR_table[0].set_register = ISR_table[0].write_mask;                                          // set X to active
+    *ISR_table[1].set_register = ISR_table[1].write_mask;                                          // set Y to active
+    *ISR_table[2].set_register = ISR_table[2].write_mask;                                          // set Z to active
+    *ISR_table[3].set_register = ISR_table[3].write_mask;                                          // set E to active
+  }
+  else {
+    if (PWM_ISR2_STATUS & PWM_IER2_CMPM1)  *ISR_table[0].clr_register = ISR_table[0].write_mask;   // set X to inactive
+    if (PWM_ISR2_STATUS & PWM_IER2_CMPM2)  *ISR_table[1].clr_register = ISR_table[1].write_mask;   // set Y to inactive
+    if (PWM_ISR2_STATUS & PWM_IER2_CMPM3)  *ISR_table[2].clr_register = ISR_table[2].write_mask;   // set Z to inactive
+    if (PWM_ISR2_STATUS & PWM_IER2_CMPM4)  *ISR_table[3].clr_register = ISR_table[3].write_mask;   // set E to inactive
+  }
+  return;
+}
+
+#endif // PRINTRBOARD_G2

Marlin/src/HAL/HAL_DUE/fastio/G2_PWM.h

@@ -1,6 +1,6 @@
 /**
  * Marlin 3D Printer Firmware
- * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
+ * Copyright (c) 2019 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
  *
  * Based on Sprinter and grbl.
  * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
@@ -63,7 +63,7 @@ extern PWM_map ISR_table[NUM_PWMS];
 extern uint32_t motor_current_setting[3];
 
 #define IR_BIT(p) (WITHIN(p, 0, 3) ? (p) : (p) + 4)
-#define COPY_ACTIVE_TABLE() do{ LOOP_L_N(i, 6) work_table[i] = active_table[i]; }while(0)
+#define COPY_ACTIVE_TABLE() do{ for (uint8_t i = 0; i < 6 ; i++) work_table[i] = active_table[i]; }while(0)
 
 #define PWM_MR0 19999         // base repetition rate minus one count - 20mS
 #define PWM_PR 24             // prescaler value - prescaler divide by 24 + 1  -  1 MHz output

Marlin/src/HAL/HAL_DUE/fastio/G2_pins.h

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

Marlin/src/HAL/HAL_DUE/inc/Conditionals_LCD.h

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

Marlin/src/HAL/HAL_DUE/inc/Conditionals_adv.h

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

Marlin/src/HAL/HAL_DUE/inc/Conditionals_post.h

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

Marlin/src/HAL/HAL_DUE/inc/SanityCheck.h

@@ -1,6 +1,6 @@
 /**
  * Marlin 3D Printer Firmware
- * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
+ * Copyright (c) 2019 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
  *
  * Based on Sprinter and grbl.
  * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
@@ -55,7 +55,3 @@
 #if ENABLED(FAST_PWM_FAN)
   #error "FAST_PWM_FAN is not yet implemented for this platform."
 #endif
-
-#if HAS_TMC_SW_SERIAL
-  #error "TMC220x Software Serial is not supported on this platform."
-#endif

Marlin/src/HAL/HAL_DUE/persistent_store_eeprom.cpp

@@ -1,7 +1,7 @@
 /**
  * Marlin 3D Printer Firmware
  *
- * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
+ * Copyright (c) 2019 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
  * Copyright (c) 2016 Bob Cousins bobcousins42@googlemail.com
  * Copyright (c) 2015-2016 Nico Tonnhofer wurstnase.reprap@gmail.com
  * Copyright (c) 2016 Victor Perez victor_pv@hotmail.com
@@ -27,9 +27,9 @@
 #if ENABLED(EEPROM_SETTINGS)
 
 #include "../../inc/MarlinConfig.h"
-#include "../shared/eeprom_api.h"
+#include "../shared/persistent_store_api.h"
 
-#if !defined(E2END) && ENABLED(FLASH_EEPROM_EMULATION)
+#if !defined(E2END) && NONE(I2C_EEPROM, SPI_EEPROM)
   #define E2END 0xFFF // Default to Flash emulated EEPROM size (EepromEmulation_Due.cpp)
 #endif
 
@@ -38,7 +38,7 @@ extern void eeprom_flush();
 bool PersistentStore::access_start() { return true; }
 
 bool PersistentStore::access_finish() {
-  #if ENABLED(FLASH_EEPROM_EMULATION)
+  #if NONE(I2C_EEPROM, SPI_EEPROM)
     eeprom_flush();
   #endif
   return true;
@@ -54,7 +54,7 @@ bool PersistentStore::write_data(int &pos, const uint8_t *value, size_t size, ui
       eeprom_write_byte(p, v);
       delay(2);
       if (eeprom_read_byte(p) != v) {
-        SERIAL_ECHO_MSG(STR_ERR_EEPROM_WRITE);
+        SERIAL_ECHO_MSG(MSG_ERR_EEPROM_WRITE);
         return true;
       }
     }

Marlin/src/HAL/HAL_DUE/pinsDebug.h

@@ -1,6 +1,6 @@
 /**
  * Marlin 3D Printer Firmware
- * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
+ * Copyright (c) 2019 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by

Marlin/src/HAL/HAL_DUE/spi_pins.h

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

Marlin/src/HAL/HAL_DUE/timers.cpp

@@ -1,7 +1,7 @@
 /**
  * Marlin 3D Printer Firmware
  *
- * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
+ * Copyright (c) 2019 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
  * Copyright (c) 2016 Bob Cousins bobcousins42@googlemail.com
  * Copyright (c) 2015-2016 Nico Tonnhofer wurstnase.reprap@gmail.com
  *

Marlin/src/HAL/HAL_DUE/timers.h

@@ -1,7 +1,7 @@
 /**
  * Marlin 3D Printer Firmware
  *
- * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
+ * Copyright (c) 2019 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
  * Copyright (c) 2016 Bob Cousins bobcousins42@googlemail.com
  *
  * This program is free software: you can redistribute it and/or modify