🔖 Marlin 2.0.9.3

Co-Authored-By: Sola <42537573+solawc@users.noreply.github.com>

.github/ISSUE_TEMPLATE/bug_report.yml

@@ -110,6 +110,18 @@ body:
       label: Add-ons
       description: Please list any hardware add-ons that could be involved.
 
+  - type: dropdown
+    attributes:
+      label: Bed Leveling
+      description: What kind of bed leveling compensation are you using?
+      options:
+        - UBL Bilinear mesh
+        - ABL Bilinear mesh
+        - ABL Linear grid
+        - ABL 3-point
+        - MBL Manual Bed Leveling
+        - No Bed Leveling
+
   - type: dropdown
     attributes:
       label: Your Slicer

.github/workflows/bump-date.yml

@@ -28,6 +28,7 @@ jobs:
         # Inline Bump Script
         DIST=$( date +"%Y-%m-%d" )
         eval "sed -E -i 's/(#define +STRING_DISTRIBUTION_DATE) .*$/\1 \"$DIST\"/g' Marlin/src/inc/Version.h" && \
+        eval "sed -E -i 's/(#define +STRING_DISTRIBUTION_DATE) .*$/\1 \"$DIST\"/g' Marlin/Version.h" && \
         git config user.name "${GITHUB_ACTOR}" && \
         git config user.email "${GITHUB_ACTOR}@users.noreply.github.com" && \
         git add . && \

.github/workflows/check-pr.yml

@@ -6,7 +6,8 @@
 name: PR Bad Target
 
 on:
-  pull_request:
+  pull_request_target:
+    types: [opened]
     branches:
     - 1.0.x
     - 1.1.x

.github/workflows/test-builds.yml

@@ -58,15 +58,16 @@ jobs:
 
         #- STM32F103RC_btt_maple
         - STM32F103RC_btt_USB_maple
-        - STM32F103RC_fysetc
+        - STM32F103RC_fysetc_maple
         - STM32F103RC_meeb
-        - jgaurora_a5s_a1
-        - STM32F103VE_longer
+        - jgaurora_a5s_a1_maple
+        - STM32F103VE_longer_maple
         #- mks_robin_maple
-        - mks_robin_lite
-        - mks_robin_pro
+        - mks_robin_lite_maple
+        - mks_robin_pro_maple
         #- mks_robin_nano35_maple
         #- STM32F103RET6_creality_maple
+        - STM32F103VE_ZM3E4V2_USB_maple
 
         # STM32 (ST) Environments
 
@@ -75,6 +76,7 @@ jobs:
         - STM32F103RE_btt
         - STM32F103RE_btt_USB
         - STM32F103RET6_creality
+        - STM32F103VE_longer
         - STM32F407VE_black
         - STM32F401VE_STEVAL
         - BIGTREE_BTT002
@@ -95,6 +97,7 @@ jobs:
         - REMRAM_V1
         - BTT_SKR_SE_BX
         - chitu_f103
+        - Index_Mobo_Rev03
 
         # Put lengthy tests last
 

.gitignore

@@ -22,12 +22,16 @@
 # Generated files
 _Version.h
 bdf2u8g
+marlin_config.json
+mczip.h
+*.gen
+*.sublime-workspace
 
 #
 # OS
 #
 applet/
-*.DS_Store
+.DS_Store
 
 #
 # Misc
@@ -143,10 +147,16 @@ vc-fileutils.settings
 .vscode/launch.json
 .vscode/*.db
 
-# cmake
+#Simulation
+imgui.ini
+eeprom.dat
+spi_flash.bin
+
+#cmake
 CMakeLists.txt
 src/CMakeLists.txt
 CMakeListsPrivate.txt
+build/
 
 # CLion
 cmake-build-*
@@ -163,7 +173,3 @@ __pycache__
 
 # IOLogger logs
 *_log.csv
-
-# Simulation / Native
-eeprom.dat
-imgui.ini

Marlin/Configuration.h

@@ -35,7 +35,7 @@
  *
  * Advanced settings can be found in Configuration_adv.h
  */
-#define CONFIGURATION_H_VERSION 02000901
+#define CONFIGURATION_H_VERSION 02000903
 
 //===========================================================================
 //============================= Getting Started =============================
@@ -94,6 +94,11 @@
 
 // @section machine
 
+// Choose the name from boards.h that matches your setup
+#ifndef MOTHERBOARD
+  #define MOTHERBOARD BOARD_RAMPS_14_EFB
+#endif
+
 /**
  * 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.
@@ -137,11 +142,6 @@
 // Enable the Bluetooth serial interface on AT90USB devices
 //#define BLUETOOTH
 
-// Choose the name from boards.h that matches your setup
-#ifndef MOTHERBOARD
-  #define MOTHERBOARD BOARD_RAMPS_14_EFB
-#endif
-
 // Name displayed in the LCD "Ready" message and Info menu
 //#define CUSTOM_MACHINE_NAME "3D Printer"
 
@@ -260,7 +260,6 @@
 
   #define PARKING_EXTRUDER_PARKING_X { -78, 184 }     // X positions for parking the extruders
   #define PARKING_EXTRUDER_GRAB_DISTANCE 1            // (mm) Distance to move beyond the parking point to grab the extruder
-  //#define MANUAL_SOLENOID_CONTROL                   // Manual control of docking solenoids with M380 S / M381
 
   #if ENABLED(PARKING_EXTRUDER)
 
@@ -342,6 +341,7 @@
   #define MIXING_VIRTUAL_TOOLS 16  // Use the Virtual Tool method with M163 and M164
   //#define DIRECT_MIXING_IN_G1    // Allow ABCDHI mix factors in G1 movement commands
   //#define GRADIENT_MIX           // Support for gradient mixing with M166 and LCD
+  //#define MIXING_PRESETS         // Assign 8 default V-tool presets for 2 or 3 MIXING_STEPPERS
   #if ENABLED(GRADIENT_MIX)
     //#define GRADIENT_VTOOL       // Add M166 T to use a V-tool index as a Gradient alias
   #endif
@@ -366,6 +366,9 @@
 //#define PSU_NAME "Power Supply"
 
 #if ENABLED(PSU_CONTROL)
+  //#define MKS_PWC                 // Using the MKS PWC add-on
+  //#define PS_OFF_CONFIRM          // Confirm dialog when power off
+  //#define PS_OFF_SOUND            // Beep 1s when power off
   #define PSU_ACTIVE_STATE LOW      // Set 'LOW' for ATX, 'HIGH' for X-Box
 
   //#define PSU_DEFAULT_OFF         // Keep power off until enabled directly with M80
@@ -395,70 +398,93 @@
 // @section temperature
 
 /**
- * --NORMAL IS 4.7kohm PULLUP!-- 1kohm pullup can be used on hotend sensor, using correct resistor and table
+ * --NORMAL IS 4.7kΩ PULLUP!-- 1kΩ pullup can be used on hotend sensor, using correct resistor and table
  *
  * Temperature sensors available:
  *
- *    -5 : PT100 / PT1000 with MAX31865 (only for sensors 0-1)
- *    -3 : thermocouple with MAX31855 (only for sensors 0-1)
- *    -2 : thermocouple with MAX6675 (only for sensors 0-1)
- *    -4 : thermocouple with AD8495
- *    -1 : thermocouple with AD595
+ *  SPI RTD/Thermocouple Boards - IMPORTANT: Read the NOTE below!
+ *  -------
+ *    -5 : MAX31865 with Pt100/Pt1000, 2, 3, or 4-wire  (only for sensors 0-1)
+ *                  NOTE: You must uncomment/set the MAX31865_*_OHMS_n defines below.
+ *    -3 : MAX31855 with Thermocouple, -200°C to +700°C (only for sensors 0-1)
+ *    -2 : MAX6675  with Thermocouple, 0°C to +700°C    (only for sensors 0-1)
+ *
+ *  NOTE: Ensure TEMP_n_CS_PIN is set in your pins file for each TEMP_SENSOR_n using an SPI Thermocouple. By default,
+ *        Hardware SPI on the default serial bus is used. If you have also set TEMP_n_SCK_PIN and TEMP_n_MISO_PIN,
+ *        Software SPI will be used on those ports instead. You can force Hardware SPI on the default bus in the
+ *        Configuration_adv.h file. At this time, separate Hardware SPI buses for sensors are not supported.
+ *
+ *  Analog Themocouple Boards
+ *  -------
+ *    -4 : AD8495 with Thermocouple
+ *    -1 : AD595  with Thermocouple
+ *
+ *  Analog Thermistors - 4.7kΩ pullup - Normal
+ *  -------
+ *     1 : 100kΩ  EPCOS - Best choice for EPCOS thermistors
+ *   331 : 100kΩ  Same as #1, but 3.3V scaled for MEGA
+ *   332 : 100kΩ  Same as #1, but 3.3V scaled for DUE
+ *     2 : 200kΩ  ATC Semitec 204GT-2
+ *   202 : 200kΩ  Copymaster 3D
+ *     3 : ???Ω   Mendel-parts thermistor
+ *     4 : 10kΩ   Generic Thermistor !! DO NOT use for a hotend - it gives bad resolution at high temp. !!
+ *     5 : 100kΩ  ATC Semitec 104GT-2/104NT-4-R025H42G - Used in ParCan, J-Head, and E3D, SliceEngineering 300°C
+ *   501 : 100kΩ  Zonestar - Tronxy X3A
+ *   502 : 100kΩ  Zonestar - used by hot bed in Zonestar Průša P802M
+ *   512 : 100kΩ  RPW-Ultra hotend
+ *     6 : 100kΩ  EPCOS - Not as accurate as table #1 (created using a fluke thermocouple)
+ *     7 : 100kΩ  Honeywell 135-104LAG-J01
+ *    71 : 100kΩ  Honeywell 135-104LAF-J01
+ *     8 : 100kΩ  Vishay 0603 SMD NTCS0603E3104FXT
+ *     9 : 100kΩ  GE Sensing AL03006-58.2K-97-G1
+ *    10 : 100kΩ  RS PRO 198-961
+ *    11 : 100kΩ  Keenovo AC silicone mats, most Wanhao i3 machines - beta 3950, 1%
+ *    12 : 100kΩ  Vishay 0603 SMD NTCS0603E3104FXT (#8) - calibrated for Makibox hot bed
+ *    13 : 100kΩ  Hisens up to 300°C - for "Simple ONE" & "All In ONE" hotend - beta 3950, 1%
+ *    15 : 100kΩ  Calibrated for JGAurora A5 hotend
+ *    18 : 200kΩ  ATC Semitec 204GT-2 Dagoma.Fr - MKS_Base_DKU001327
+ *    22 : 100kΩ  GTM32 Pro vB - hotend - 4.7kΩ pullup to 3.3V and 220Ω to analog input
+ *    23 : 100kΩ  GTM32 Pro vB - bed - 4.7kΩ pullup to 3.3v and 220Ω to analog input
+ *    30 : 100kΩ  Kis3d Silicone heating mat 200W/300W with 6mm precision cast plate (EN AW 5083) NTC100K - beta 3950
+ *    60 : 100kΩ  Maker's Tool Works Kapton Bed Thermistor - beta 3950
+ *    61 : 100kΩ  Formbot/Vivedino 350°C Thermistor - beta 3950
+ *    66 : 4.7MΩ  Dyze Design High Temperature Thermistor
+ *    67 : 500kΩ  SliceEngineering 450°C Thermistor
+ *    70 : 100kΩ  bq Hephestos 2
+ *    75 : 100kΩ  Generic Silicon Heat Pad with NTC100K MGB18-104F39050L32
+ *  2000 : 100kΩ  Ultimachine Rambo TDK NTCG104LH104KT1 NTC100K motherboard Thermistor
+ *
+ *  Analog Thermistors - 1kΩ pullup - Atypical, and requires changing out the 4.7kΩ pullup for 1kΩ.
+ *  -------                           (but gives greater accuracy and more stable PID)
+ *    51 : 100kΩ  EPCOS (1kΩ pullup)
+ *    52 : 200kΩ  ATC Semitec 204GT-2 (1kΩ pullup)
+ *    55 : 100kΩ  ATC Semitec 104GT-2 - Used in ParCan & J-Head (1kΩ pullup)
+ *
+ *  Analog Thermistors - 10kΩ pullup - Atypical
+ *  -------
+ *    99 : 100kΩ  Found on some Wanhao i3 machines with a 10kΩ pull-up resistor
+ *
+ *  Analog RTDs (Pt100/Pt1000)
+ *  -------
+ *   110 : Pt100  with 1kΩ pullup (atypical)
+ *   147 : Pt100  with 4.7kΩ pullup
+ *  1010 : Pt1000 with 1kΩ pullup (atypical)
+ *  1047 : Pt1000 with 4.7kΩ pullup (E3D)
+ *    20 : Pt100  with circuit in the Ultimainboard V2.x with mainboard ADC reference voltage = INA826 amplifier-board supply voltage.
+ *                NOTE: (1) Must use an ADC input with no pullup. (2) Some INA826 amplifiers are unreliable at 3.3V so consider using sensor 147, 110, or 21.
+ *    21 : Pt100  with circuit in the Ultimainboard V2.x with 3.3v ADC reference voltage (STM32, LPC176x....) and 5V INA826 amplifier board supply.
+ *                NOTE: ADC pins are not 5V tolerant. Not recommended because it's possible to damage the CPU by going over 500°C.
+ *   201 : Pt100  with circuit in Overlord, similar to Ultimainboard V2.x
+ *
+ *  Custom/Dummy/Other Thermal Sensors
+ *  ------
  *     0 : not used
- *     1 : 100k thermistor - best choice for EPCOS 100k (4.7k pullup)
- *   331 : (3.3V scaled thermistor 1 table for MEGA)
- *   332 : (3.3V scaled thermistor 1 table for DUE)
- *     2 : 200k thermistor - ATC Semitec 204GT-2 (4.7k pullup)
- *   202 : 200k thermistor - Copymaster 3D
- *     3 : Mendel-parts thermistor (4.7k pullup)
- *     4 : 10k thermistor !! do not use it for a hotend. It gives bad resolution at high temp. !!
- *     5 : 100K thermistor - ATC Semitec 104GT-2/104NT-4-R025H42G (Used in ParCan, J-Head, and E3D) (4.7k pullup)
- *   501 : 100K Zonestar (Tronxy X3A) Thermistor
- *   502 : 100K Zonestar Thermistor used by hot bed in Zonestar Průša P802M
- *   512 : 100k RPW-Ultra hotend thermistor (4.7k pullup)
- *     6 : 100k EPCOS - Not as accurate as table 1 (created using a fluke thermocouple) (4.7k pullup)
- *     7 : 100k Honeywell thermistor 135-104LAG-J01 (4.7k pullup)
- *    71 : 100k Honeywell thermistor 135-104LAF-J01 (4.7k pullup)
- *     8 : 100k 0603 SMD Vishay NTCS0603E3104FXT (4.7k pullup)
- *     9 : 100k GE Sensing AL03006-58.2K-97-G1 (4.7k pullup)
- *    10 : 100k RS thermistor 198-961 (4.7k pullup)
- *    11 : 100k beta 3950 1% thermistor (Used in Keenovo AC silicone mats and most Wanhao i3 machines) (4.7k pullup)
- *    12 : 100k 0603 SMD Vishay NTCS0603E3104FXT (4.7k pullup) (calibrated for Makibox hot bed)
- *    13 : 100k Hisens 3950  1% up to 300°C for hotend "Simple ONE " & "Hotend "All In ONE"
- *    15 : 100k thermistor calibration for JGAurora A5 hotend
- *    18 : ATC Semitec 204GT-2 (4.7k pullup) Dagoma.Fr - MKS_Base_DKU001327
- *    20 : Pt100 with circuit in the Ultimainboard V2.x with mainboard ADC reference voltage = INA826 amplifier-board supply voltage.
- *         NOTES: (1) Must use an ADC input with no pullup. (2) Some INA826 amplifiers are unreliable at 3.3V so consider using sensor 147, 110, or 21.
- *    21 : Pt100 with circuit in the Ultimainboard V2.x with 3.3v ADC reference voltage (STM32, LPC176x....) and 5V INA826 amplifier board supply.
- *         NOTE: ADC pins are not 5V tolerant. Not recommended because it's possible to damage the CPU by going over 500°C.
- *    22 : 100k (hotend) with 4.7k pullup to 3.3V and 220R to analog input (as in GTM32 Pro vB)
- *    23 : 100k (bed) with 4.7k pullup to 3.3v and 220R to analog input (as in GTM32 Pro vB)
- *    30 : Kis3d Silicone heating mat 200W/300W with 6mm precision cast plate (EN AW 5083) NTC100K / B3950 (4.7k pullup)
- *   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
- *    66 : 4.7M High Temperature thermistor from Dyze Design
- *    67 : 450C thermistor from SliceEngineering
- *    70 : the 100K thermistor found in the bq Hephestos 2
- *    75 : 100k Generic Silicon Heat Pad with NTC 100K MGB18-104F39050L32 thermistor
- *    99 : 100k thermistor with a 10K pull-up resistor (found on some Wanhao i3 machines)
- *
- *       1k ohm pullup tables - This is atypical, and requires changing out the 4.7k pullup for 1k.
- *                              (but gives greater accuracy and more stable PID)
- *    51 : 100k thermistor - EPCOS (1k pullup)
- *    52 : 200k thermistor - ATC Semitec 204GT-2 (1k pullup)
- *    55 : 100k thermistor - ATC Semitec 104GT-2 (Used in ParCan & J-Head) (1k pullup)
- *
- *  1047 : Pt1000 with 4k7 pullup (E3D)
- *  1010 : Pt1000 with 1k pullup (non standard)
- *   147 : Pt100 with 4k7 pullup
- *   110 : Pt100 with 1k pullup (non standard)
- *
  *  1000 : Custom - Specify parameters in Configuration_adv.h
  *
- *         Use these for Testing or Development purposes. NEVER for production machine.
+ *   !!! Use these for Testing or Development purposes. NEVER for production machine. !!!
  *   998 : Dummy Table that ALWAYS reads 25°C or the temperature defined below.
  *   999 : Dummy Table that ALWAYS reads 100°C or the temperature defined below.
+ *
  */
 #define TEMP_SENSOR_0 1
 #define TEMP_SENSOR_1 0
@@ -472,6 +498,7 @@
 #define TEMP_SENSOR_PROBE 0
 #define TEMP_SENSOR_CHAMBER 0
 #define TEMP_SENSOR_COOLER 0
+#define TEMP_SENSOR_BOARD 0
 #define TEMP_SENSOR_REDUNDANT 0
 
 // Dummy thermistor constant temperature readings, for use with 998 and 999
@@ -480,7 +507,7 @@
 
 // Resistor values when using MAX31865 sensors (-5) on TEMP_SENSOR_0 / 1
 //#define MAX31865_SENSOR_OHMS_0      100   // (Ω) Typically 100 or 1000 (PT100 or PT1000)
-//#define MAX31865_CALIBRATION_OHMS_0 430   // (Ω) Typically 430 for AdaFruit PT100; 4300 for AdaFruit PT1000
+//#define MAX31865_CALIBRATION_OHMS_0 430   // (Ω) Typically 430 for Adafruit PT100; 4300 for Adafruit PT1000
 //#define MAX31865_SENSOR_OHMS_1      100
 //#define MAX31865_CALIBRATION_OHMS_1 430
 
@@ -504,17 +531,11 @@
  * the print will be aborted. Whichever sensor is selected will have its normal functions disabled; i.e. selecting
  * the Bed sensor (-1) will disable bed heating/monitoring.
  *
- * Use the following to select temp sensors:
- *    -5 : Cooler
- *    -4 : Probe
- *    -3 : not used
- *    -2 : Chamber
- *    -1 : Bed
- *   0-7 : E0 through E7
+ * For selecting source/target use: COOLER, PROBE, BOARD, CHAMBER, BED, E0, E1, E2, E3, E4, E5, E6, E7
  */
 #if TEMP_SENSOR_REDUNDANT
-  #define TEMP_SENSOR_REDUNDANT_SOURCE     1  // The sensor that will provide the redundant reading.
-  #define TEMP_SENSOR_REDUNDANT_TARGET     0  // The sensor that we are providing a redundant reading for.
+  #define TEMP_SENSOR_REDUNDANT_SOURCE    E1  // The sensor that will provide the redundant reading.
+  #define TEMP_SENSOR_REDUNDANT_TARGET    E0  // The sensor that we are providing a redundant reading for.
   #define TEMP_SENSOR_REDUNDANT_MAX_DIFF  10  // (°C) Temperature difference that will trigger a print abort.
 #endif
 
@@ -573,8 +594,8 @@
                                   // Set/get with gcode: M301 E[extruder number, 0-2]
 
   #if ENABLED(PID_PARAMS_PER_HOTEND)
-    // Specify between 1 and HOTENDS values per array.
-    // If fewer than EXTRUDER values are provided, the last element will be repeated.
+    // Specify up to one value per hotend here, according to your setup.
+    // If there are fewer values, the last one applies to the remaining hotends.
     #define DEFAULT_Kp_LIST {  22.20,  22.20 }
     #define DEFAULT_Ki_LIST {   1.08,   1.08 }
     #define DEFAULT_Kd_LIST { 114.00, 114.00 }
@@ -735,6 +756,17 @@
 //#define COREZX
 //#define COREZY
 //#define MARKFORGED_XY  // MarkForged. See https://reprap.org/forum/read.php?152,504042
+//#define MARKFORGED_YX
+
+// Enable for a belt style printer with endless "Z" motion
+//#define BELTPRINTER
+
+// Enable for Polargraph Kinematics
+//#define POLARGRAPH
+#if ENABLED(POLARGRAPH)
+  #define POLARGRAPH_MAX_BELT_LEN 1035.0
+  #define POLAR_SEGMENTS_PER_SECOND 5
+#endif
 
 //===========================================================================
 //============================== Endstop Settings ===========================
@@ -762,18 +794,18 @@
 #define ENDSTOPPULLUPS
 #if DISABLED(ENDSTOPPULLUPS)
   // Disable ENDSTOPPULLUPS to set pullups individually
-  //#define ENDSTOPPULLUP_XMAX
-  //#define ENDSTOPPULLUP_YMAX
-  //#define ENDSTOPPULLUP_ZMAX
-  //#define ENDSTOPPULLUP_IMAX
-  //#define ENDSTOPPULLUP_JMAX
-  //#define ENDSTOPPULLUP_KMAX
   //#define ENDSTOPPULLUP_XMIN
   //#define ENDSTOPPULLUP_YMIN
   //#define ENDSTOPPULLUP_ZMIN
   //#define ENDSTOPPULLUP_IMIN
   //#define ENDSTOPPULLUP_JMIN
   //#define ENDSTOPPULLUP_KMIN
+  //#define ENDSTOPPULLUP_XMAX
+  //#define ENDSTOPPULLUP_YMAX
+  //#define ENDSTOPPULLUP_ZMAX
+  //#define ENDSTOPPULLUP_IMAX
+  //#define ENDSTOPPULLUP_JMAX
+  //#define ENDSTOPPULLUP_KMAX
   //#define ENDSTOPPULLUP_ZMIN_PROBE
 #endif
 
@@ -781,18 +813,18 @@
 //#define ENDSTOPPULLDOWNS
 #if DISABLED(ENDSTOPPULLDOWNS)
   // Disable ENDSTOPPULLDOWNS to set pulldowns individually
-  //#define ENDSTOPPULLDOWN_XMAX
-  //#define ENDSTOPPULLDOWN_YMAX
-  //#define ENDSTOPPULLDOWN_ZMAX
-  //#define ENDSTOPPULLDOWN_IMAX
-  //#define ENDSTOPPULLDOWN_JMAX
-  //#define ENDSTOPPULLDOWN_KMAX
   //#define ENDSTOPPULLDOWN_XMIN
   //#define ENDSTOPPULLDOWN_YMIN
   //#define ENDSTOPPULLDOWN_ZMIN
   //#define ENDSTOPPULLDOWN_IMIN
   //#define ENDSTOPPULLDOWN_JMIN
   //#define ENDSTOPPULLDOWN_KMIN
+  //#define ENDSTOPPULLDOWN_XMAX
+  //#define ENDSTOPPULLDOWN_YMAX
+  //#define ENDSTOPPULLDOWN_ZMAX
+  //#define ENDSTOPPULLDOWN_IMAX
+  //#define ENDSTOPPULLDOWN_JMAX
+  //#define ENDSTOPPULLDOWN_KMAX
   //#define ENDSTOPPULLDOWN_ZMIN_PROBE
 #endif
 
@@ -1089,7 +1121,7 @@
 #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.
+// When the pin is defined you can use M672 to set/reset the probe sensitivity.
 //#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
@@ -1189,6 +1221,15 @@
   #endif
 #endif
 
+/**
+ * Probe Enable / Disable
+ * The probe only provides a triggered signal when enabled.
+ */
+//#define PROBE_ENABLE_DISABLE
+#if ENABLED(PROBE_ENABLE_DISABLE)
+  //#define PROBE_ENABLE_PIN -1   // Override the default pin here
+#endif
+
 /**
  * Multiple Probing
  *
@@ -1698,15 +1739,13 @@
 //#define MANUAL_J_HOME_POS 0
 //#define MANUAL_K_HOME_POS 0
 
-// Use "Z Safe Homing" to avoid homing with a Z probe outside the bed area.
-//
-// With this feature enabled:
-//
-// - Allow Z homing only after X and Y homing AND stepper drivers still enabled.
-// - If stepper drivers time out, it will need X and Y homing again before Z homing.
-// - Move the Z probe (or nozzle) to a defined XY point before Z Homing.
-// - Prevent Z homing when the Z probe is outside bed area.
-//
+/**
+ * Use "Z Safe Homing" to avoid homing with a Z probe outside the bed area.
+ *
+ * - Moves the Z probe (or nozzle) to a defined XY point before Z homing.
+ * - Allows Z homing only when XY positions are known and trusted.
+ * - If stepper drivers sleep, XY homing may be required again before Z homing.
+ */
 //#define Z_SAFE_HOMING
 
 #if ENABLED(Z_SAFE_HOMING)
@@ -1798,6 +1837,7 @@
 #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.
+  //#define EEPROM_INIT_NOW   // Init EEPROM on first boot after a new build.
 #endif
 
 //
@@ -2021,10 +2061,10 @@
  *
  * Select the language to display on the LCD. These languages are available:
  *
- *   en, an, bg, ca, cz, da, de, el, el_gr, es, eu, fi, fr, gl, hr, hu, it,
+ *   en, an, bg, ca, cz, da, de, el, el_CY, es, eu, fi, fr, gl, hr, hu, it,
  *   jp_kana, ko_KR, nl, pl, pt, pt_br, ro, ru, sk, sv, tr, uk, vi, zh_CN, zh_TW
  *
- * :{ 'en':'English', 'an':'Aragonese', 'bg':'Bulgarian', 'ca':'Catalan', 'cz':'Czech', 'da':'Danish', 'de':'German', 'el':'Greek', 'el_gr':'Greek (Greece)', 'es':'Spanish', 'eu':'Basque-Euskera', 'fi':'Finnish', 'fr':'French', 'gl':'Galician', 'hr':'Croatian', 'hu':'Hungarian', 'it':'Italian', 'jp_kana':'Japanese', 'ko_KR':'Korean (South Korea)', 'nl':'Dutch', 'pl':'Polish', 'pt':'Portuguese', 'pt_br':'Portuguese (Brazilian)', 'ro':'Romanian', 'ru':'Russian', 'sk':'Slovak', 'sv':'Swedish', 'tr':'Turkish', 'uk':'Ukrainian', 'vi':'Vietnamese', 'zh_CN':'Chinese (Simplified)', 'zh_TW':'Chinese (Traditional)' }
+ * :{ 'en':'English', 'an':'Aragonese', 'bg':'Bulgarian', 'ca':'Catalan', 'cz':'Czech', 'da':'Danish', 'de':'German', 'el':'Greek (Greece)', 'el_CY':'Greek (Cyprus)', 'es':'Spanish', 'eu':'Basque-Euskera', 'fi':'Finnish', 'fr':'French', 'gl':'Galician', 'hr':'Croatian', 'hu':'Hungarian', 'it':'Italian', 'jp_kana':'Japanese', 'ko_KR':'Korean (South Korea)', 'nl':'Dutch', 'pl':'Polish', 'pt':'Portuguese', 'pt_br':'Portuguese (Brazilian)', 'ro':'Romanian', 'ru':'Russian', 'sk':'Slovak', 'sv':'Swedish', 'tr':'Turkish', 'uk':'Ukrainian', 'vi':'Vietnamese', 'zh_CN':'Chinese (Simplified)', 'zh_TW':'Chinese (Traditional)' }
  */
 #define LCD_LANGUAGE en
 
@@ -2136,6 +2176,7 @@
 // Add individual axis homing items (Home X, Home Y, and Home Z) to the LCD menu.
 //
 //#define INDIVIDUAL_AXIS_HOMING_MENU
+//#define INDIVIDUAL_AXIS_HOMING_SUBMENU
 
 //
 // SPEAKER/BUZZER
@@ -2345,6 +2386,11 @@
 //#define VIKI2
 //#define miniVIKI
 
+//
+// Alfawise Ex8 printer LCD marked as WYH L12864 COG
+//
+//#define WYH_L12864
+
 //
 // MakerLab Mini Panel with graphic
 // controller and SD support - https://reprap.org/wiki/Mini_panel
@@ -2392,6 +2438,11 @@
 //
 //#define MKS_MINI_12864
 
+//
+// MKS MINI12864 V3 is an alias for FYSETC_MINI_12864_2_1. Type A/B. NeoPixel RGB Backlight.
+//
+//#define MKS_MINI_12864_V3
+
 //
 // MKS LCD12864A/B with graphic controller and SD support. Follows MKS_MINI_12864 pinout.
 // https://www.aliexpress.com/item/33018110072.html
@@ -2409,6 +2460,11 @@
 //#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.
 
+//
+// BigTreeTech Mini 12864 V1.0 is an alias for FYSETC_MINI_12864_2_1. Type A/B. NeoPixel RGB Backlight.
+//
+//#define BTT_MINI_12864_V1
+
 //
 // Factory display for Creality CR-10
 // https://www.aliexpress.com/item/32833148327.html
@@ -2512,12 +2568,39 @@
 // DGUS Touch Display with DWIN OS. (Choose one.)
 // ORIGIN : https://www.aliexpress.com/item/32993409517.html
 // FYSETC : https://www.aliexpress.com/item/32961471929.html
+// MKS    : https://www.aliexpress.com/item/1005002008179262.html
+//
+// Flash display with DGUS Displays for Marlin:
+//  - Format the SD card to FAT32 with an allocation size of 4kb.
+//  - Download files as specified for your type of display.
+//  - Plug the microSD card into the back of the display.
+//  - Boot the display and wait for the update to complete.
+//
+// ORIGIN (Marlin DWIN_SET)
+//  - Download https://github.com/coldtobi/Marlin_DGUS_Resources
+//  - Copy the downloaded DWIN_SET folder to the SD card.
+//
+// FYSETC (Supplier default)
+//  - Download https://github.com/FYSETC/FYSTLCD-2.0
+//  - Copy the downloaded SCREEN folder to the SD card.
+//
+// HIPRECY (Supplier default)
+//  - Download https://github.com/HiPrecy/Touch-Lcd-LEO
+//  - Copy the downloaded DWIN_SET folder to the SD card.
+//
+// MKS (MKS-H43) (Supplier default)
+//  - Download https://github.com/makerbase-mks/MKS-H43
+//  - Copy the downloaded DWIN_SET folder to the SD card.
+//
+// RELOADED (T5UID1)
+//  - Download https://github.com/Desuuuu/DGUS-reloaded/releases
+//  - Copy the downloaded DWIN_SET folder to the SD card.
 //
 //#define DGUS_LCD_UI_ORIGIN
 //#define DGUS_LCD_UI_FYSETC
 //#define DGUS_LCD_UI_HIPRECY
-
 //#define DGUS_LCD_UI_MKS
+//#define DGUS_LCD_UI_RELOADED
 #if ENABLED(DGUS_LCD_UI_MKS)
   #define USE_MKS_GREEN_UI
 #endif
@@ -2574,32 +2657,32 @@
  */
 
 //
-// 480x320, 3.5", SPI Display From MKS
-// Normally used in MKS Robin Nano V2
+// 480x320, 3.5", SPI Display with Rotary Encoder from MKS
+// Usually paired with MKS Robin Nano V2 & V3
 //
 //#define MKS_TS35_V2_0
 
 //
 // 320x240, 2.4", FSMC Display From MKS
-// Normally used in MKS Robin Nano V1.2
+// Usually paired with MKS Robin Nano V1.2
 //
 //#define MKS_ROBIN_TFT24
 
 //
 // 320x240, 2.8", FSMC Display From MKS
-// Normally used in MKS Robin Nano V1.2
+// Usually paired with MKS Robin Nano V1.2
 //
 //#define MKS_ROBIN_TFT28
 
 //
 // 320x240, 3.2", FSMC Display From MKS
-// Normally used in MKS Robin Nano V1.2
+// Usually paired with MKS Robin Nano V1.2
 //
 //#define MKS_ROBIN_TFT32
 
 //
 // 480x320, 3.5", FSMC Display From MKS
-// Normally used in MKS Robin Nano V1.2
+// Usually paired with MKS Robin Nano V1.2
 //
 //#define MKS_ROBIN_TFT35
 
@@ -2610,7 +2693,7 @@
 
 //
 // 320x240, 3.2", FSMC Display From MKS
-// Normally used in MKS Robin
+// Usually paired with MKS Robin
 //
 //#define MKS_ROBIN_TFT_V1_1R
 
@@ -2640,10 +2723,15 @@
 //#define ANET_ET5_TFT35
 
 //
-// 1024x600, 7", RGB Stock Display from BIQU-BX
+// 1024x600, 7", RGB Stock Display with Rotary Encoder from BIQU-BX
 //
 //#define BIQU_BX_TFT70
 
+//
+// 480x320, 3.5", SPI Stock Display with Rotary Encoder from BIQU B1 SE Series
+//
+//#define BTT_TFT35_SPI_V1_0
+
 //
 // Generic TFT with detailed options
 //
@@ -2660,6 +2748,7 @@
   //#define TFT_RES_320x240
   //#define TFT_RES_480x272
   //#define TFT_RES_480x320
+  //#define TFT_RES_1024x600
 #endif
 
 /**
@@ -2697,7 +2786,11 @@
 //
 // Ender-3 v2 OEM display. A DWIN display with Rotary Encoder.
 //
-//#define DWIN_CREALITY_LCD
+//#define DWIN_CREALITY_LCD           // Creality UI
+//#define DWIN_CREALITY_LCD_ENHANCED  // Enhanced UI
+//#define DWIN_CREALITY_LCD_JYERSUI   // Jyers UI by Jacob Myers
+//#define DWIN_MARLINUI_PORTRAIT      // MarlinUI (portrait orientation)
+//#define DWIN_MARLINUI_LANDSCAPE     // MarlinUI (landscape orientation)
 
 //
 // Touch Screen Settings
@@ -2707,6 +2800,8 @@
   #define BUTTON_DELAY_EDIT  50 // (ms) Button repeat delay for edit screens
   #define BUTTON_DELAY_MENU 250 // (ms) Button repeat delay for menus
 
+  //#define TOUCH_IDLE_SLEEP 300 // (secs) Turn off the TFT backlight if set (5mn)
+
   #define TOUCH_SCREEN_CALIBRATION
 
   //#define TOUCH_CALIBRATION_X 12316
@@ -2731,6 +2826,11 @@
 //#define REPRAPWORLD_KEYPAD
 //#define REPRAPWORLD_KEYPAD_MOVE_STEP 10.0 // (mm) Distance to move per key-press
 
+//
+// EasyThreeD ET-4000+ with button input and status LED
+//
+//#define EASYTHREED_UI
+
 //=============================================================================
 //=============================== Extra Features ==============================
 //=============================================================================
@@ -2741,9 +2841,6 @@
 // :[1,2,3,4,5,6,7,8]
 //#define NUM_M106_FANS 1
 
-// Increase the FAN PWM frequency. Removes the PWM noise but increases heating in the FET/Arduino
-//#define FAST_PWM_FAN
-
 // Use software PWM to drive the fan, as for the heaters. This uses a very low frequency
 // which is not as annoying as with the hardware PWM. On the other hand, if this frequency
 // is too low, you should also increment SOFT_PWM_SCALE.
@@ -2861,9 +2958,9 @@
  * Set this manually if there are extra servos needing manual control.
  * Set to 0 to turn off servo support.
  */
-//#define NUM_SERVOS 3 // Servo index starts with 0 for M280 command
+//#define NUM_SERVOS 3 // Note: Servo index starts with 0 for M280-M282 commands
 
-// (ms) Delay  before the next move will start, to give the servo time to reach its target angle.
+// (ms) Delay before the next move will start, to give the servo time to reach its target angle.
 // 300ms is a good value but you can try less delay.
 // If the servo can't reach the requested position, increase it.
 #define SERVO_DELAY { 300 }
@@ -2873,3 +2970,6 @@
 
 // Edit servo angles with M281 and save to EEPROM with M500
 //#define EDITABLE_SERVO_ANGLES
+
+// Disable servo with M282 to reduce power consumption, noise, and heat when not in use
+//#define SERVO_DETACH_GCODE

Marlin/Configuration_adv.h

@@ -30,7 +30,7 @@
  *
  * Basic settings can be found in Configuration.h
  */
-#define CONFIGURATION_ADV_H_VERSION 02000901
+#define CONFIGURATION_ADV_H_VERSION 02000903
 
 //===========================================================================
 //============================= Thermal Settings ============================
@@ -125,16 +125,42 @@
   #define PROBE_BETA                   3950    // Beta value
 #endif
 
+#if TEMP_SENSOR_BOARD == 1000
+  #define BOARD_PULLUP_RESISTOR_OHMS   4700    // Pullup resistor
+  #define BOARD_RESISTANCE_25C_OHMS    100000  // Resistance at 25C
+  #define BOARD_BETA                   3950    // Beta value
+#endif
+
 #if TEMP_SENSOR_REDUNDANT == 1000
   #define REDUNDANT_PULLUP_RESISTOR_OHMS   4700    // Pullup resistor
   #define REDUNDANT_RESISTANCE_25C_OHMS    100000  // Resistance at 25C
   #define REDUNDANT_BETA                   3950    // Beta value
 #endif
 
-//
-// Hephestos 2 24V heated bed upgrade kit.
-// https://store.bq.com/en/heated-bed-kit-hephestos2
-//
+/**
+ * Configuration options for MAX Thermocouples (-2, -3, -5).
+ *   FORCE_HW_SPI:   Ignore SCK/MOSI/MISO pins and just use the CS pin & default SPI bus.
+ *   MAX31865_WIRES: Set the number of wires for the probe connected to a MAX31865 board, 2-4. Default: 2
+ *   MAX31865_50HZ:  Enable 50Hz filter instead of the default 60Hz.
+ *   MAX31865_USE_READ_ERROR_DETECTION: Detects random read errors from value spikes (a 20°C difference in less than 1sec)
+ *   MAX31865_USE_AUTO_MODE: Faster and more frequent reads than 1-shot, but bias voltage always on, slightly affecting RTD temperature.
+ *   MAX31865_MIN_SAMPLING_TIME_MSEC: in 1-shot mode, the minimum time between subsequent reads. This reduces the effect of bias voltage by leaving the sensor unpowered for longer intervals.
+ *   MAX31865_WIRE_OHMS: In 2-wire configurations, manually set the wire resistance for more accurate readings
+ */
+//#define TEMP_SENSOR_FORCE_HW_SPI
+//#define MAX31865_SENSOR_WIRES_0 2
+//#define MAX31865_SENSOR_WIRES_1 2
+//#define MAX31865_50HZ_FILTER
+//#define MAX31865_USE_READ_ERROR_DETECTION
+//#define MAX31865_USE_AUTO_MODE
+//#define MAX31865_MIN_SAMPLING_TIME_MSEC 100
+//#define MAX31865_WIRE_OHMS_0 0.0f
+//#define MAX31865_WIRE_OHMS_1 0.0f
+
+/**
+ * Hephestos 2 24V heated bed upgrade kit.
+ * https://store.bq.com/en/heated-bed-kit-hephestos2
+ */
 //#define HEPHESTOS2_HEATED_BED_KIT
 #if ENABLED(HEPHESTOS2_HEATED_BED_KIT)
   #undef TEMP_SENSOR_BED
@@ -169,7 +195,8 @@
 
   //#define CHAMBER_FAN               // Enable a fan on the chamber
   #if ENABLED(CHAMBER_FAN)
-    #define CHAMBER_FAN_MODE 2        // Fan control mode: 0=Static; 1=Linear increase when temp is higher than target; 2=V-shaped curve; 3=similar to 1 but fan is always on.
+    //#define CHAMBER_FAN_INDEX   2   // Index of a fan to repurpose as the chamber fan. (Default: first unused fan)
+    #define CHAMBER_FAN_MODE      2   // Fan control mode: 0=Static; 1=Linear increase when temp is higher than target; 2=V-shaped curve; 3=similar to 1 but fan is always on.
     #if CHAMBER_FAN_MODE == 0
       #define CHAMBER_FAN_BASE  255   // Chamber fan PWM (0-255)
     #elif CHAMBER_FAN_MODE == 1
@@ -213,6 +240,18 @@
   #endif
 #endif
 
+//
+// Motherboard Sensor options
+//
+#if TEMP_SENSOR_BOARD
+  #define THERMAL_PROTECTION_BOARD   // Halt the printer if the board sensor leaves the temp range below.
+  #define BOARD_MINTEMP           8  // (°C)
+  #define BOARD_MAXTEMP          70  // (°C)
+  #ifndef TEMP_BOARD_PIN
+    //#define TEMP_BOARD_PIN -1      // Board temp sensor pin, if not set in pins file.
+  #endif
+#endif
+
 //
 // Laser Coolant Flow Meter
 //
@@ -300,14 +339,14 @@
  * Thermal Protection parameters for the laser cooler.
  */
 #if ENABLED(THERMAL_PROTECTION_COOLER)
-  #define THERMAL_PROTECTION_COOLER_PERIOD    10 // Seconds
-  #define THERMAL_PROTECTION_COOLER_HYSTERESIS 3 // Degrees Celsius
+  #define THERMAL_PROTECTION_COOLER_PERIOD     10 // Seconds
+  #define THERMAL_PROTECTION_COOLER_HYSTERESIS  3 // Degrees Celsius
 
   /**
    * Laser cooling watch settings (M143/M193).
    */
-  #define WATCH_COOLER_TEMP_PERIOD            60 // Seconds
-  #define WATCH_COOLER_TEMP_INCREASE           3 // Degrees Celsius
+  #define WATCH_COOLER_TEMP_PERIOD             60 // Seconds
+  #define WATCH_COOLER_TEMP_INCREASE            3 // Degrees Celsius
 #endif
 
 #if ENABLED(PIDTEMP)
@@ -385,7 +424,7 @@
  */
 #define AUTOTEMP
 #if ENABLED(AUTOTEMP)
-  #define AUTOTEMP_OLDWEIGHT    0.98
+  #define AUTOTEMP_OLDWEIGHT    0.98  // Factor used to weight previous readings (0.0 < value < 1.0)
   // Turn on AUTOTEMP on M104/M109 by default using proportions set here
   //#define AUTOTEMP_PROPORTIONAL
   #if ENABLED(AUTOTEMP_PROPORTIONAL)
@@ -469,16 +508,20 @@
  */
 //#define USE_CONTROLLER_FAN
 #if ENABLED(USE_CONTROLLER_FAN)
-  //#define CONTROLLER_FAN_PIN -1        // Set a custom pin for the controller fan
-  //#define CONTROLLER_FAN_USE_Z_ONLY    // With this option only the Z axis is considered
-  //#define CONTROLLER_FAN_IGNORE_Z      // Ignore Z stepper. Useful when stepper timeout is disabled.
-  #define CONTROLLERFAN_SPEED_MIN      0 // (0-255) Minimum speed. (If set below this value the fan is turned off.)
-  #define CONTROLLERFAN_SPEED_ACTIVE 255 // (0-255) Active speed, used when any motor is enabled
-  #define CONTROLLERFAN_SPEED_IDLE     0 // (0-255) Idle speed, used when motors are disabled
-  #define CONTROLLERFAN_IDLE_TIME     60 // (seconds) Extra time to keep the fan running after disabling motors
-  //#define CONTROLLER_FAN_EDITABLE      // Enable M710 configurable settings
+  //#define CONTROLLER_FAN_PIN -1           // Set a custom pin for the controller fan
+  //#define CONTROLLER_FAN_USE_Z_ONLY       // With this option only the Z axis is considered
+  //#define CONTROLLER_FAN_IGNORE_Z         // Ignore Z stepper. Useful when stepper timeout is disabled.
+  #define CONTROLLERFAN_SPEED_MIN         0 // (0-255) Minimum speed. (If set below this value the fan is turned off.)
+  #define CONTROLLERFAN_SPEED_ACTIVE    255 // (0-255) Active speed, used when any motor is enabled
+  #define CONTROLLERFAN_SPEED_IDLE        0 // (0-255) Idle speed, used when motors are disabled
+  #define CONTROLLERFAN_IDLE_TIME        60 // (seconds) Extra time to keep the fan running after disabling motors
+
+  // Use TEMP_SENSOR_BOARD as a trigger for enabling the controller fan
+  //#define CONTROLLER_FAN_MIN_BOARD_TEMP 40  // (°C) Turn on the fan if the board reaches this temperature
+
+  //#define CONTROLLER_FAN_EDITABLE         // Enable M710 configurable settings
   #if ENABLED(CONTROLLER_FAN_EDITABLE)
-    #define CONTROLLER_FAN_MENU          // Enable the Controller Fan submenu
+    #define CONTROLLER_FAN_MENU             // Enable the Controller Fan submenu
   #endif
 #endif
 
@@ -506,18 +549,21 @@
 //#define FAN_MAX_PWM 128
 
 /**
- * FAST PWM FAN Settings
+ * Fan Fast PWM
  *
- * Use to change the FAST FAN PWM frequency (if enabled in Configuration.h)
- * Combinations of PWM Modes, prescale values and TOP resolutions are used internally to produce a
- * frequency as close as possible to the desired frequency.
+ * Combinations of PWM Modes, prescale values and TOP resolutions are used internally
+ * to produce a frequency as close as possible to the desired frequency.
  *
- * FAST_PWM_FAN_FREQUENCY [undefined by default]
+ * FAST_PWM_FAN_FREQUENCY
  *   Set this to your desired frequency.
- *   If left undefined this defaults to F = F_CPU/(2*255*1)
- *   i.e., F = 31.4kHz on 16MHz microcontrollers or F = 39.2kHz on 20MHz microcontrollers.
- *   These defaults are the same as with the old FAST_PWM_FAN implementation - no migration is required
+ *   For AVR, if left undefined this defaults to F = F_CPU/(2*255*1)
+ *            i.e., F = 31.4kHz on 16MHz microcontrollers or F = 39.2kHz on 20MHz microcontrollers.
+ *   For non AVR, if left undefined this defaults to F = 1Khz.
+ *   This F value is only to protect the hardware from an absence of configuration
+ *   and not to complete it when users are not aware that the frequency must be specifically set to support the target board.
+ *
  *   NOTE: Setting very low frequencies (< 10 Hz) may result in unexpected timer behavior.
+ *         Setting very high frequencies can damage your hardware.
  *
  * USE_OCR2A_AS_TOP [undefined by default]
  *   Boards that use TIMER2 for PWM have limitations resulting in only a few possible frequencies on TIMER2:
@@ -527,9 +573,17 @@
  *   PWM on pin OC2A. Only use this option if you don't need PWM on 0C2A. (Check your schematic.)
  *   USE_OCR2A_AS_TOP sacrifices duty cycle control resolution to achieve this broader range of frequencies.
  */
+//#define FAST_PWM_FAN    // Increase the fan PWM frequency. Removes the PWM noise but increases heating in the FET/Arduino
 #if ENABLED(FAST_PWM_FAN)
-  //#define FAST_PWM_FAN_FREQUENCY 31400
+  //#define FAST_PWM_FAN_FREQUENCY 31400  // Define here to override the defaults below
   //#define USE_OCR2A_AS_TOP
+  #ifndef FAST_PWM_FAN_FREQUENCY
+    #ifdef __AVR__
+      #define FAST_PWM_FAN_FREQUENCY ((F_CPU) / (2 * 255 * 1))
+    #else
+      #define FAST_PWM_FAN_FREQUENCY 1000U
+    #endif
+  #endif
 #endif
 
 /**
@@ -570,6 +624,40 @@
 #define COOLER_AUTO_FAN_TEMPERATURE 18
 #define COOLER_AUTO_FAN_SPEED 255
 
+/**
+ * Hotend Cooling Fans tachometers
+ *
+ * Define one or more tachometer pins to enable fan speed
+ * monitoring, and reporting of fan speeds with M123.
+ *
+ * NOTE: Only works with fans up to 7000 RPM.
+ */
+//#define FOURWIRES_FANS      // Needed with AUTO_FAN when 4-wire PWM fans are installed
+//#define E0_FAN_TACHO_PIN -1
+//#define E0_FAN_TACHO_PULLUP
+//#define E0_FAN_TACHO_PULLDOWN
+//#define E1_FAN_TACHO_PIN -1
+//#define E1_FAN_TACHO_PULLUP
+//#define E1_FAN_TACHO_PULLDOWN
+//#define E2_FAN_TACHO_PIN -1
+//#define E2_FAN_TACHO_PULLUP
+//#define E2_FAN_TACHO_PULLDOWN
+//#define E3_FAN_TACHO_PIN -1
+//#define E3_FAN_TACHO_PULLUP
+//#define E3_FAN_TACHO_PULLDOWN
+//#define E4_FAN_TACHO_PIN -1
+//#define E4_FAN_TACHO_PULLUP
+//#define E4_FAN_TACHO_PULLDOWN
+//#define E5_FAN_TACHO_PIN -1
+//#define E5_FAN_TACHO_PULLUP
+//#define E5_FAN_TACHO_PULLDOWN
+//#define E6_FAN_TACHO_PIN -1
+//#define E6_FAN_TACHO_PULLUP
+//#define E6_FAN_TACHO_PULLDOWN
+//#define E7_FAN_TACHO_PIN -1
+//#define E7_FAN_TACHO_PULLUP
+//#define E7_FAN_TACHO_PULLDOWN
+
 /**
  * Part-Cooling Fan Multiplexer
  *
@@ -820,12 +908,14 @@
   //#define BLTOUCH_FORCE_MODE_SET
 
   /**
-   * Use "HIGH SPEED" mode for probing.
+   * Enable "HIGH SPEED" option for probing.
    * Danger: Disable if your probe sometimes fails. Only suitable for stable well-adjusted systems.
    * This feature was designed for Deltabots with very fast Z moves; however, higher speed Cartesians
    * might be able to use it. If the machine can't raise Z fast enough the BLTouch may go into ALARM.
+   *
+   * Set the default state here, change with 'M401 S' or UI, use M500 to save, M502 to reset.
    */
-  //#define BLTOUCH_HS_MODE
+  //#define BLTOUCH_HS_MODE true
 
   // Safety: Enable voltage mode settings in the LCD menu.
   //#define BLTOUCH_LCD_VOLTAGE_MENU
@@ -1163,7 +1253,7 @@
 
 // @section lcd
 
-#if EITHER(IS_ULTIPANEL, EXTENSIBLE_UI)
+#if ANY(HAS_LCD_MENU, EXTENSIBLE_UI, HAS_DWIN_E3V2)
   #define MANUAL_FEEDRATE { 50*60, 50*60, 4*60, 2*60 } // (mm/min) Feedrates for manual moves along X, Y, Z, E from panel
   #define FINE_MANUAL_MOVE 0.025    // (mm) Smallest manual move (< 0.1mm) applying to Z on most machines
   #if IS_ULTIPANEL
@@ -1202,6 +1292,22 @@
       // Set a convenient position to do the calibration (probing point and nozzle/bed-distance)
       //#define PROBE_OFFSET_WIZARD_XY_POS { X_CENTER, Y_CENTER }
     #endif
+
+    #if ENABLED(AUTO_BED_LEVELING_BILINEAR)
+      // Add a calibration procedure in the Probe Offsets menu
+      // to compensate for twist in the X-axis.
+      //#define X_AXIS_TWIST_COMPENSATION
+      #if ENABLED(X_AXIS_TWIST_COMPENSATION)
+        /**
+         * Enable to init the Probe Z-Offset when starting the Wizard.
+         * Use a height slightly above the estimated nozzle-to-probe Z offset.
+         * For example, with an offset of -5, consider a starting height of -4.
+         */
+        #define XATC_START_Z 0.0
+        #define XATC_MAX_POINTS 3             // Number of points to probe in the wizard
+        #define XATC_Y_POSITION Y_CENTER      // (mm) Y position to probe
+      #endif
+    #endif
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1213,9 +1319,6 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
-  // Add a mute option to the LCD menu
-  //#define SOUND_MENU_ITEM
-
   /**
    * LED Control Menu
    * Add LED Control to the LCD menu
@@ -1247,7 +1350,11 @@
 
 #endif // HAS_LCD_MENU
 
-#if HAS_DISPLAY
+#if ANY(HAS_DISPLAY, DWIN_CREALITY_LCD_ENHANCED, DWIN_CREALITY_LCD_JYERSUI)
+  //#define SOUND_MENU_ITEM   // Add a mute option to the LCD menu
+#endif
+
+#if EITHER(HAS_DISPLAY, DWIN_CREALITY_LCD_ENHANCED)
   // The timeout (in ms) to return to the status screen from sub-menus
   //#define LCD_TIMEOUT_TO_STATUS 15000
 
@@ -1271,11 +1378,14 @@
   //#define LCD_SHOW_E_TOTAL
 #endif
 
-#if EITHER(SDSUPPORT, LCD_SET_PROGRESS_MANUALLY) && ANY(HAS_MARLINUI_U8GLIB, HAS_MARLINUI_HD44780, IS_TFTGLCD_PANEL, EXTENSIBLE_UI)
-  //#define SHOW_REMAINING_TIME       // Display estimated time to completion
-  #if ENABLED(SHOW_REMAINING_TIME)
-    //#define USE_M73_REMAINING_TIME  // Use remaining time from M73 command instead of estimation
-    //#define ROTATE_PROGRESS_DISPLAY // Display (P)rogress, (E)lapsed, and (R)emaining time
+// LCD Print Progress options
+#if EITHER(SDSUPPORT, LCD_SET_PROGRESS_MANUALLY)
+  #if CAN_SHOW_REMAINING_TIME
+    //#define SHOW_REMAINING_TIME         // Display estimated time to completion
+    #if ENABLED(SHOW_REMAINING_TIME)
+      //#define USE_M73_REMAINING_TIME    // Use remaining time from M73 command instead of estimation
+      //#define ROTATE_PROGRESS_DISPLAY   // Display (P)rogress, (E)lapsed, and (R)emaining time
+    #endif
   #endif
 
   #if EITHER(HAS_MARLINUI_U8GLIB, EXTENSIBLE_UI)
@@ -1496,6 +1606,14 @@
     #define SD_FIRMWARE_UPDATE_INACTIVE_VALUE 0xFF
   #endif
 
+  /**
+   * Enable this option if you have more than ~3K of unused flash space.
+   * Marlin will embed all settings in the firmware binary as compressed data.
+   * Use 'M503 C' to write the settings out to the SD Card as 'mc.zip'.
+   * See docs/ConfigEmbedding.md for details on how to use 'mc-apply.py'.
+   */
+  //#define CONFIGURATION_EMBEDDING
+
   // Add an optimized binary file transfer mode, initiated with 'M28 B1'
   //#define BINARY_FILE_TRANSFER
 
@@ -1543,16 +1661,10 @@
  * printing performance versus fast display updates.
  */
 #if HAS_MARLINUI_U8GLIB
-  // Show SD percentage next to the progress bar
-  //#define DOGM_SD_PERCENT
-
   // Save many cycles by drawing a hollow frame or no frame on the Info Screen
   //#define XYZ_NO_FRAME
   #define XYZ_HOLLOW_FRAME
 
-  // Enable to save many cycles by drawing a hollow frame on Menu Screens
-  #define MENU_HOLLOW_FRAME
-
   // A bigger font is available for edit items. Costs 3120 bytes of PROGMEM.
   // Western only. Not available for Cyrillic, Kana, Turkish, Greek, or Chinese.
   //#define USE_BIG_EDIT_FONT
@@ -1561,9 +1673,6 @@
   // Western only. Not available for Cyrillic, Kana, Turkish, Greek, or Chinese.
   //#define USE_SMALL_INFOFONT
 
-  // Swap the CW/CCW indicators in the graphics overlay
-  //#define OVERLAY_GFX_REVERSE
-
   /**
    * ST7920-based LCDs can emulate a 16 x 4 character display using
    * the ST7920 character-generator for very fast screen updates.
@@ -1576,7 +1685,7 @@
    * Set STATUS_EXPIRE_SECONDS to zero to never clear the status.
    * This will prevent position updates from being displayed.
    */
-  #if ENABLED(U8GLIB_ST7920)
+  #if IS_U8GLIB_ST7920
     // Enable this option and reduce the value to optimize screen updates.
     // The normal delay is 10µs. Use the lowest value that still gives a reliable display.
     //#define DOGM_SPI_DELAY_US 5
@@ -1605,7 +1714,7 @@
   //#define STATUS_ALT_FAN_BITMAP     // Use the alternative fan bitmap
   //#define STATUS_FAN_FRAMES 3       // :[0,1,2,3,4] Number of fan animation frames
   //#define STATUS_HEAT_PERCENT       // Show heating in a progress bar
-  //#define BOOT_MARLIN_LOGO_ANIMATED // Animated Marlin logo. Costs ~‭3260 (or ~940) bytes of PROGMEM.
+  //#define BOOT_MARLIN_LOGO_ANIMATED // Animated Marlin logo. Costs ~3260 (or ~940) bytes of PROGMEM.
 
   // Frivolous Game Options
   //#define MARLIN_BRICKOUT
@@ -1615,6 +1724,17 @@
 
 #endif // HAS_MARLINUI_U8GLIB
 
+#if HAS_MARLINUI_U8GLIB || IS_DWIN_MARLINUI
+  // Show SD percentage next to the progress bar
+  //#define SHOW_SD_PERCENT
+
+  // Enable to save many cycles by drawing a hollow frame on Menu Screens
+  #define MENU_HOLLOW_FRAME
+
+  // Swap the CW/CCW indicators in the graphics overlay
+  //#define OVERLAY_GFX_REVERSE
+#endif
+
 //
 // Additional options for DGUS / DWIN displays
 //
@@ -1680,7 +1800,7 @@
 //
 // Specify additional languages for the UI. Default specified by LCD_LANGUAGE.
 //
-#if ANY(DOGLCD, TFT_COLOR_UI, TOUCH_UI_FTDI_EVE)
+#if ANY(DOGLCD, TFT_COLOR_UI, TOUCH_UI_FTDI_EVE, IS_DWIN_MARLINUI)
   //#define LCD_LANGUAGE_2 fr
   //#define LCD_LANGUAGE_3 de
   //#define LCD_LANGUAGE_4 es
@@ -1699,7 +1819,7 @@
   //#define LCD_4DSYSTEMS_4DLCD_FT843 // 4D Systems 4.3" (480x272)
   //#define LCD_HAOYU_FT800CB         // Haoyu with 4.3" or 5" (480x272)
   //#define LCD_HAOYU_FT810CB         // Haoyu with 5" (800x480)
-  //#define LCD_ALEPHOBJECTS_CLCD_UI  // Aleph Objects Color LCD UI
+  //#define LCD_LULZBOT_CLCD_UI       // LulzBot Color LCD UI
   //#define LCD_FYSETC_TFT81050       // FYSETC with 5" (800x480)
   //#define LCD_EVE3_50G              // Matrix Orbital 5.0", 800x480, BT815
   //#define LCD_EVE2_50G              // Matrix Orbital 5.0", 800x480, FT813
@@ -1710,8 +1830,8 @@
   //#define TOUCH_UI_800x480
 
   // Mappings for boards with a standard RepRapDiscount Display connector
-  //#define AO_EXP1_PINMAP      // AlephObjects CLCD UI EXP1 mapping
-  //#define AO_EXP2_PINMAP      // AlephObjects CLCD UI EXP2 mapping
+  //#define AO_EXP1_PINMAP      // LulzBot CLCD UI EXP1 mapping
+  //#define AO_EXP2_PINMAP      // LulzBot CLCD UI EXP2 mapping
   //#define CR10_TFT_PINMAP     // Rudolph Riedel's CR10 pin mapping
   //#define S6_TFT_PINMAP       // FYSETC S6 pin mapping
   //#define F6_TFT_PINMAP       // FYSETC F6 pin mapping
@@ -1875,6 +1995,7 @@
   #define LIN_ADVANCE_K 0.22    // Unit: mm compression per 1mm/s extruder speed
   //#define LA_DEBUG            // If enabled, this will generate debug information output over USB.
   //#define EXPERIMENTAL_SCURVE // Enable this option to permit S-Curve Acceleration
+  //#define ALLOW_LOW_EJERK     // Allow a DEFAULT_EJERK value of <10. Recommended for direct drive hotends.
 #endif
 
 // @section leveling
@@ -1950,59 +2071,69 @@
 
 /**
  * Thermal Probe Compensation
- * Probe measurements are adjusted to compensate for temperature distortion.
- * Use G76 to calibrate this feature. Use M871 to set values manually.
- * For a more detailed explanation of the process see G76_M871.cpp.
+ *
+ * Adjust probe measurements to compensate for distortion associated with the temperature
+ * of the probe, bed, and/or hotend.
+ * Use G76 to automatically calibrate this feature for probe and bed temperatures.
+ * (Extruder temperature/offset values must be calibrated manually.)
+ * Use M871 to set temperature/offset values manually.
+ * For more details see https://marlinfw.org/docs/features/probe_temp_compensation.html
  */
-#if HAS_BED_PROBE && TEMP_SENSOR_PROBE && TEMP_SENSOR_BED
-  // Enable thermal first layer compensation using bed and probe temperatures
-  #define PROBE_TEMP_COMPENSATION
+//#define PTC_PROBE    // Compensate based on probe temperature
+//#define PTC_BED      // Compensate based on bed temperature
+//#define PTC_HOTEND   // Compensate based on hotend temperature
 
-  // Add additional compensation depending on hotend temperature
-  // Note: this values cannot be calibrated and have to be set manually
-  #if ENABLED(PROBE_TEMP_COMPENSATION)
+#if ANY(PTC_PROBE, PTC_BED, PTC_HOTEND)
+  /**
+   * If the probe is outside the defined range, use linear extrapolation with the closest
+   * point and the point with index PTC_LINEAR_EXTRAPOLATION. e.g., If set to 4 it will use the
+   * linear extrapolation between data[0] and data[4] for values below PTC_PROBE_START.
+   */
+  //#define PTC_LINEAR_EXTRAPOLATION 4
+
+  #if ENABLED(PTC_PROBE)
+    // Probe temperature calibration generates a table of values starting at PTC_PROBE_START
+    // (e.g., 30), in steps of PTC_PROBE_RES (e.g., 5) with PTC_PROBE_COUNT (e.g., 10) samples.
+    #define PTC_PROBE_START   30    // (°C)
+    #define PTC_PROBE_RES      5    // (°C)
+    #define PTC_PROBE_COUNT   10
+    #define PTC_PROBE_ZOFFS   { 0 } // (µm) Z adjustments per sample
+  #endif
+
+  #if ENABLED(PTC_BED)
+    // Bed temperature calibration builds a similar table.
+    #define PTC_BED_START     60    // (°C)
+    #define PTC_BED_RES        5    // (°C)
+    #define PTC_BED_COUNT     10
+    #define PTC_BED_ZOFFS     { 0 } // (µm) Z adjustments per sample
+  #endif
+
+  #if ENABLED(PTC_HOTEND)
+    // Note: There is no automatic calibration for the hotend. Use M871.
+    #define PTC_HOTEND_START 180    // (°C)
+    #define PTC_HOTEND_RES     5    // (°C)
+    #define PTC_HOTEND_COUNT  20
+    #define PTC_HOTEND_ZOFFS  { 0 } // (µm) Z adjustments per sample
+  #endif
+
+  // G76 options
+  #if BOTH(PTC_PROBE, PTC_BED)
     // Park position to wait for probe cooldown
     #define PTC_PARK_POS   { 0, 0, 100 }
 
     // Probe position to probe and wait for probe to reach target temperature
+    //#define PTC_PROBE_POS  { 12.0f, 7.3f } // Example: MK52 magnetic heatbed
     #define PTC_PROBE_POS  { 90, 100 }
 
-    // Enable additional compensation using hotend temperature
-    // Note: this values cannot be calibrated automatically but have to be set manually
-    //#define USE_TEMP_EXT_COMPENSATION
-
-    // Probe temperature calibration generates a table of values starting at PTC_SAMPLE_START
-    // (e.g., 30), in steps of PTC_SAMPLE_RES (e.g., 5) with PTC_SAMPLE_COUNT (e.g., 10) samples.
-
-    //#define PTC_SAMPLE_START  30  // (°C)
-    //#define PTC_SAMPLE_RES     5  // (°C)
-    //#define PTC_SAMPLE_COUNT  10
-
-    // Bed temperature calibration builds a similar table.
-
-    //#define BTC_SAMPLE_START  60  // (°C)
-    //#define BTC_SAMPLE_RES     5  // (°C)
-    //#define BTC_SAMPLE_COUNT  10
-
-    // The temperature the probe should be at while taking measurements during bed temperature
-    // calibration.
-    //#define BTC_PROBE_TEMP    30  // (°C)
+    // The temperature the probe should be at while taking measurements during
+    // bed temperature calibration.
+    #define PTC_PROBE_TEMP    30  // (°C)
 
     // Height above Z=0.0 to raise the nozzle. Lowering this can help the probe to heat faster.
-    // Note: the Z=0.0 offset is determined by the probe offset which can be set using M851.
-    //#define PTC_PROBE_HEATING_OFFSET 0.5
-
-    // Height to raise the Z-probe between heating and taking the next measurement. Some probes
-    // may fail to untrigger if they have been triggered for a long time, which can be solved by
-    // increasing the height the probe is raised to.
-    //#define PTC_PROBE_RAISE 15
-
-    // If the probe is outside of the defined range, use linear extrapolation using the closest
-    // point and the PTC_LINEAR_EXTRAPOLATION'th next point. E.g. if set to 4 it will use data[0]
-    // and data[4] to perform linear extrapolation for values below PTC_SAMPLE_START.
-    //#define PTC_LINEAR_EXTRAPOLATION 4
+    // Note: The Z=0.0 offset is determined by the probe Z offset (e.g., as set with M851 Z).
+    #define PTC_PROBE_HEATING_OFFSET 0.5
   #endif
-#endif
+#endif // PTC_PROBE || PTC_BED || PTC_HOTEND
 
 // @section extras
 
@@ -2014,20 +2145,23 @@
 //
 // G2/G3 Arc Support
 //
-#define ARC_SUPPORT                 // Disable this feature to save ~3226 bytes
+#define ARC_SUPPORT                   // Requires ~3226 bytes
 #if ENABLED(ARC_SUPPORT)
-  #define MM_PER_ARC_SEGMENT      1 // (mm) Length (or minimum length) of each arc segment
-  //#define ARC_SEGMENTS_PER_R    1 // Max segment length, MM_PER = Min
-  #define MIN_ARC_SEGMENTS       24 // Minimum number of segments in a complete circle
-  //#define ARC_SEGMENTS_PER_SEC 50 // Use feedrate to choose segment length (with MM_PER_ARC_SEGMENT as the minimum)
-  #define N_ARC_CORRECTION       25 // Number of interpolated segments between corrections
-  //#define ARC_P_CIRCLES           // Enable the 'P' parameter to specify complete circles
-  //#define CNC_WORKSPACE_PLANES    // Allow G2/G3 to operate in XY, ZX, or YZ planes
-  //#define SF_ARC_FIX              // Enable only if using SkeinForge with "Arc Point" fillet procedure
+  #define MIN_ARC_SEGMENT_MM      0.1 // (mm) Minimum length of each arc segment
+  #define MAX_ARC_SEGMENT_MM      1.0 // (mm) Maximum length of each arc segment
+  #define MIN_CIRCLE_SEGMENTS    72   // Minimum number of segments in a complete circle
+  //#define ARC_SEGMENTS_PER_SEC 50   // Use the feedrate to choose the segment length
+  #define N_ARC_CORRECTION       25   // Number of interpolated segments between corrections
+  //#define ARC_P_CIRCLES             // Enable the 'P' parameter to specify complete circles
+  //#define SF_ARC_FIX                // Enable only if using SkeinForge with "Arc Point" fillet procedure
 #endif
 
-// Support for G5 with XYZE destination and IJPQ offsets. Requires ~2666 bytes.
-//#define BEZIER_CURVE_SUPPORT
+// G5 Bézier Curve Support with XYZE destination and IJPQ offsets
+//#define BEZIER_CURVE_SUPPORT        // Requires ~2666 bytes
+
+#if EITHER(ARC_SUPPORT, BEZIER_CURVE_SUPPORT)
+  //#define CNC_WORKSPACE_PLANES      // Allow G2/G3/G5 to operate in XY, ZX, or YZ planes
+#endif
 
 /**
  * Direct Stepping
@@ -2272,6 +2406,7 @@
    */
   //#define EVENT_GCODE_TOOLCHANGE_T0 "G28 A\nG1 A0" // Extra G-code to run while executing tool-change command T0
   //#define EVENT_GCODE_TOOLCHANGE_T1 "G1 A10"       // Extra G-code to run while executing tool-change command T1
+  //#define EVENT_GCODE_TOOLCHANGE_ALWAYS_RUN        // Always execute above G-code sequences. Use with caution!
 
   /**
    * Tool Sensors detect when tools have been picked up or dropped.
@@ -2294,7 +2429,7 @@
     // Longer prime to clean out a SINGLENOZZLE
     #define TOOLCHANGE_FS_EXTRA_PRIME          0  // (mm) Extra priming length
     #define TOOLCHANGE_FS_PRIME_SPEED    (4.6*60) // (mm/min) Extra priming feedrate
-    #define TOOLCHANGE_FS_WIPE_RETRACT         0  // (mm/min) Retract before cooling for less stringing, better wipe, etc.
+    #define TOOLCHANGE_FS_WIPE_RETRACT         0  // (mm) Retract before cooling for less stringing, better wipe, etc.
 
     // Cool after prime to reduce stringing
     #define TOOLCHANGE_FS_FAN                 -1  // Fan index or -1 to skip
@@ -2384,6 +2519,8 @@
   #define PAUSE_PARK_NOZZLE_TIMEOUT           45  // (seconds) Time limit before the nozzle is turned off for safety.
   #define FILAMENT_CHANGE_ALERT_BEEPS         10  // Number of alert beeps to play when a response is needed.
   #define PAUSE_PARK_NO_STEPPER_TIMEOUT           // Enable for XYZ steppers to stay powered on during filament change.
+  //#define FILAMENT_CHANGE_RESUME_ON_INSERT      // Automatically continue / load filament when runout sensor is triggered again.
+  //#define PAUSE_REHEAT_FAST_RESUME              // Reduce number of waits by not prompting again post-timeout before continuing.
 
   //#define PARK_HEAD_ON_PAUSE                    // Park the nozzle during pause and filament change.
   //#define HOME_BEFORE_FILAMENT_CHANGE           // If needed, home before parking for filament change
@@ -2553,6 +2690,7 @@
     #define X_RSENSE          0.11
     #define X_CHAIN_POS      -1        // -1..0: Not chained. 1: MCU MOSI connected. 2: Next in chain, ...
     //#define X_INTERPOLATE  true      // Enable to override 'INTERPOLATE' for the X axis
+    //#define X_HOLD_MULTIPLIER 0.5    // Enable to override 'HOLD_MULTIPLIER' for the X axis
   #endif
 
   #if AXIS_IS_TMC(X2)
@@ -2562,6 +2700,7 @@
     #define X2_RSENSE         0.11
     #define X2_CHAIN_POS     -1
     //#define X2_INTERPOLATE true
+    //#define X2_HOLD_MULTIPLIER 0.5
   #endif
 
   #if AXIS_IS_TMC(Y)
@@ -2571,6 +2710,7 @@
     #define Y_RSENSE          0.11
     #define Y_CHAIN_POS      -1
     //#define Y_INTERPOLATE  true
+    //#define Y_HOLD_MULTIPLIER 0.5
   #endif
 
   #if AXIS_IS_TMC(Y2)
@@ -2580,6 +2720,7 @@
     #define Y2_RSENSE         0.11
     #define Y2_CHAIN_POS     -1
     //#define Y2_INTERPOLATE true
+    //#define Y2_HOLD_MULTIPLIER 0.5
   #endif
 
   #if AXIS_IS_TMC(Z)
@@ -2589,6 +2730,7 @@
     #define Z_RSENSE          0.11
     #define Z_CHAIN_POS      -1
     //#define Z_INTERPOLATE  true
+    //#define Z_HOLD_MULTIPLIER 0.5
   #endif
 
   #if AXIS_IS_TMC(Z2)
@@ -2598,6 +2740,7 @@
     #define Z2_RSENSE         0.11
     #define Z2_CHAIN_POS     -1
     //#define Z2_INTERPOLATE true
+    //#define Z2_HOLD_MULTIPLIER 0.5
   #endif
 
   #if AXIS_IS_TMC(Z3)
@@ -2607,6 +2750,7 @@
     #define Z3_RSENSE         0.11
     #define Z3_CHAIN_POS     -1
     //#define Z3_INTERPOLATE true
+    //#define Z3_HOLD_MULTIPLIER 0.5
   #endif
 
   #if AXIS_IS_TMC(Z4)
@@ -2616,6 +2760,7 @@
     #define Z4_RSENSE         0.11
     #define Z4_CHAIN_POS     -1
     //#define Z4_INTERPOLATE true
+    //#define Z4_HOLD_MULTIPLIER 0.5
   #endif
 
   #if AXIS_IS_TMC(I)
@@ -2625,6 +2770,7 @@
     #define I_RSENSE         0.11
     #define I_CHAIN_POS     -1
     //#define I_INTERPOLATE  true
+    //#define I_HOLD_MULTIPLIER 0.5
   #endif
 
   #if AXIS_IS_TMC(J)
@@ -2634,6 +2780,7 @@
     #define J_RSENSE         0.11
     #define J_CHAIN_POS     -1
     //#define J_INTERPOLATE  true
+    //#define J_HOLD_MULTIPLIER 0.5
   #endif
 
   #if AXIS_IS_TMC(K)
@@ -2643,6 +2790,7 @@
     #define K_RSENSE         0.11
     #define K_CHAIN_POS     -1
     //#define K_INTERPOLATE  true
+    //#define K_HOLD_MULTIPLIER 0.5
   #endif
 
   #if AXIS_IS_TMC(E0)
@@ -2651,6 +2799,7 @@
     #define E0_RSENSE         0.11
     #define E0_CHAIN_POS     -1
     //#define E0_INTERPOLATE true
+    //#define E0_HOLD_MULTIPLIER 0.5
   #endif
 
   #if AXIS_IS_TMC(E1)
@@ -2659,6 +2808,7 @@
     #define E1_RSENSE         0.11
     #define E1_CHAIN_POS     -1
     //#define E1_INTERPOLATE true
+    //#define E1_HOLD_MULTIPLIER 0.5
   #endif
 
   #if AXIS_IS_TMC(E2)
@@ -2667,6 +2817,7 @@
     #define E2_RSENSE         0.11
     #define E2_CHAIN_POS     -1
     //#define E2_INTERPOLATE true
+    //#define E2_HOLD_MULTIPLIER 0.5
   #endif
 
   #if AXIS_IS_TMC(E3)
@@ -2675,6 +2826,7 @@
     #define E3_RSENSE         0.11
     #define E3_CHAIN_POS     -1
     //#define E3_INTERPOLATE true
+    //#define E3_HOLD_MULTIPLIER 0.5
   #endif
 
   #if AXIS_IS_TMC(E4)
@@ -2683,6 +2835,7 @@
     #define E4_RSENSE         0.11
     #define E4_CHAIN_POS     -1
     //#define E4_INTERPOLATE true
+    //#define E4_HOLD_MULTIPLIER 0.5
   #endif
 
   #if AXIS_IS_TMC(E5)
@@ -2691,6 +2844,7 @@
     #define E5_RSENSE         0.11
     #define E5_CHAIN_POS     -1
     //#define E5_INTERPOLATE true
+    //#define E5_HOLD_MULTIPLIER 0.5
   #endif
 
   #if AXIS_IS_TMC(E6)
@@ -2699,6 +2853,7 @@
     #define E6_RSENSE         0.11
     #define E6_CHAIN_POS     -1
     //#define E6_INTERPOLATE true
+    //#define E6_HOLD_MULTIPLIER 0.5
   #endif
 
   #if AXIS_IS_TMC(E7)
@@ -2707,6 +2862,7 @@
     #define E7_RSENSE         0.11
     #define E7_CHAIN_POS     -1
     //#define E7_INTERPOLATE true
+    //#define E7_HOLD_MULTIPLIER 0.5
   #endif
 
   /**
@@ -3282,11 +3438,13 @@
 //#define SPINDLE_FEATURE
 //#define LASER_FEATURE
 #if EITHER(SPINDLE_FEATURE, LASER_FEATURE)
-  #define SPINDLE_LASER_ACTIVE_STATE    LOW    // Set to "HIGH" if the on/off function is active HIGH
-  #define SPINDLE_LASER_PWM             true   // Set to "true" if your controller supports setting the speed/power
-  #define SPINDLE_LASER_PWM_INVERT      false  // Set to "true" if the speed/power goes up when you want it to go slower
+  #define SPINDLE_LASER_ACTIVE_STATE    LOW    // Set to "HIGH" if SPINDLE_LASER_ENA_PIN is active HIGH
 
-  #define SPINDLE_LASER_FREQUENCY       2500   // (Hz) Spindle/laser frequency (only on supported HALs: AVR and LPC)
+  #define SPINDLE_LASER_USE_PWM                // Enable if your controller supports setting the speed/power
+  #if ENABLED(SPINDLE_LASER_USE_PWM)
+    #define SPINDLE_LASER_PWM_INVERT    false  // Set to "true" if the speed/power goes up when you want it to go slower
+    #define SPINDLE_LASER_FREQUENCY     2500   // (Hz) Spindle/laser frequency (only on supported HALs: AVR and LPC)
+  #endif
 
   //#define AIR_EVACUATION                     // Cutter Vacuum / Laser Blower motor control with G-codes M10-M11
   #if ENABLED(AIR_EVACUATION)
@@ -3342,17 +3500,21 @@
      * Speed/Power = (PWMDC / 255 * 100 - SPEED_POWER_INTERCEPT) / SPEED_POWER_SLOPE
      * PWMDC = (spdpwr - SPEED_POWER_MIN) / (SPEED_POWER_MAX - SPEED_POWER_MIN) / SPEED_POWER_SLOPE
      */
-    #define SPEED_POWER_INTERCEPT         0    // (%) 0-100 i.e., Minimum power percentage
-    #define SPEED_POWER_MIN            5000    // (RPM)
-    #define SPEED_POWER_MAX           30000    // (RPM) SuperPID router controller 0 - 30,000 RPM
-    #define SPEED_POWER_STARTUP       25000    // (RPM) M3/M4 speed/power default (with no arguments)
+    #if ENABLED(SPINDLE_LASER_USE_PWM)
+      #define SPEED_POWER_INTERCEPT       0    // (%) 0-100 i.e., Minimum power percentage
+      #define SPEED_POWER_MIN          5000    // (RPM)
+      #define SPEED_POWER_MAX         30000    // (RPM) SuperPID router controller 0 - 30,000 RPM
+      #define SPEED_POWER_STARTUP     25000    // (RPM) M3/M4 speed/power default (with no arguments)
+    #endif
 
   #else
 
-    #define SPEED_POWER_INTERCEPT         0    // (%) 0-100 i.e., Minimum power percentage
-    #define SPEED_POWER_MIN               0    // (%) 0-100
-    #define SPEED_POWER_MAX             100    // (%) 0-100
-    #define SPEED_POWER_STARTUP          80    // (%) M3/M4 speed/power default (with no arguments)
+    #if ENABLED(SPINDLE_LASER_USE_PWM)
+      #define SPEED_POWER_INTERCEPT       0    // (%) 0-100 i.e., Minimum power percentage
+      #define SPEED_POWER_MIN             0    // (%) 0-100
+      #define SPEED_POWER_MAX           100    // (%) 0-100
+      #define SPEED_POWER_STARTUP        80    // (%) M3/M4 speed/power default (with no arguments)
+    #endif
 
     // Define the minimum and maximum test pulse time values for a laser test fire function
     #define LASER_TEST_PULSE_MIN           1   // Used with Laser Control Menu
@@ -3545,6 +3707,12 @@
  */
 //#define CNC_COORDINATE_SYSTEMS
 
+/**
+ * Auto-report fan speed with M123 S<seconds>
+ * Requires fans with tachometer pins
+ */
+//#define AUTO_REPORT_FANS
+
 /**
  * Auto-report temperatures with M155 S<seconds>
  */
@@ -3786,8 +3954,10 @@
  */
 //#define HOST_ACTION_COMMANDS
 #if ENABLED(HOST_ACTION_COMMANDS)
+  //#define HOST_PAUSE_M76
   //#define HOST_PROMPT_SUPPORT
-  //#define HOST_START_MENU_ITEM  // Add a menu item that tells the host to start
+  //#define HOST_START_MENU_ITEM      // Add a menu item that tells the host to start
+  //#define HOST_SHUTDOWN_MENU_ITEM   // Add a menu item that tells the host to shut down
 #endif
 
 /**
@@ -3875,7 +4045,7 @@
    */
   #define I2CPE_MIN_UPD_TIME_MS     4                       // (ms) Minimum time between encoder checks.
 
-  // Use a rolling average to identify persistant errors that indicate skips, as opposed to vibration and noise.
+  // Use a rolling average to identify persistent errors that indicate skips, as opposed to vibration and noise.
   #define I2CPE_ERR_ROLLING_AVERAGE
 
 #endif // I2C_POSITION_ENCODERS
@@ -4141,6 +4311,14 @@
 // Enable Marlin dev mode which adds some special commands
 //#define MARLIN_DEV_MODE
 
+#if ENABLED(MARLIN_DEV_MODE)
+  /**
+   * D576 - Buffer Monitoring
+   * To help diagnose print quality issues stemming from empty command buffers.
+   */
+  //#define BUFFER_MONITORING
+#endif
+
 /**
  * Postmortem Debugging captures misbehavior and outputs the CPU status and backtrace to serial.
  * When running in the debugger it will break for debugging. This is useful to help understand
@@ -4153,3 +4331,6 @@
  */
 //#define SOFT_RESET_VIA_SERIAL         // 'KILL' and '^X' commands will soft-reset the controller
 //#define SOFT_RESET_ON_KILL            // Use a digital button to soft-reset the controller after KILL
+
+// Report uncleaned reset reason from register r2 instead of MCUSR. Supported by Optiboot on AVR.
+//#define OPTIBOOT_RESET_REASON

Marlin/Makefile

@@ -110,7 +110,7 @@ LIQUID_TWI2        ?= 0
 WIRE               ?= 0
 
 # This defines if Tone is needed (i.e SPEAKER is defined in Configuration.h)
-# Disabling this (and SPEAKER) saves approximatively 350 bytes of memory.
+# Disabling this (and SPEAKER) saves approximately 350 bytes of memory.
 TONE               ?= 1
 
 # This defines if U8GLIB is needed (may require RELOC_WORKAROUND)
@@ -191,6 +191,134 @@ else ifeq ($(HARDWARE_MOTHERBOARD),1034)
 # RAMPS Derivatives - ATmega1280, ATmega2560
 #
 
+# 3Drag Controller
+else ifeq ($(HARDWARE_MOTHERBOARD),1100)
+# Velleman K8200 Controller (derived from 3Drag Controller)
+else ifeq ($(HARDWARE_MOTHERBOARD),1101)
+# Velleman K8400 Controller (derived from 3Drag Controller)
+else ifeq ($(HARDWARE_MOTHERBOARD),1102)
+# Velleman K8600 Controller (Vertex Nano)
+else ifeq ($(HARDWARE_MOTHERBOARD),1103)
+# Velleman K8800 Controller (Vertex Delta)
+else ifeq ($(HARDWARE_MOTHERBOARD),1104)
+# 2PrintBeta BAM&DICE with STK drivers
+else ifeq ($(HARDWARE_MOTHERBOARD),1105)
+# 2PrintBeta BAM&DICE Due with STK drivers
+else ifeq ($(HARDWARE_MOTHERBOARD),1106)
+# MKS BASE v1.0
+else ifeq ($(HARDWARE_MOTHERBOARD),1107)
+# MKS BASE v1.4 with Allegro A4982 stepper drivers
+else ifeq ($(HARDWARE_MOTHERBOARD),1108)
+# MKS BASE v1.5 with Allegro A4982 stepper drivers
+else ifeq ($(HARDWARE_MOTHERBOARD),1109)
+# MKS BASE v1.6 with Allegro A4982 stepper drivers
+else ifeq ($(HARDWARE_MOTHERBOARD),1110)
+# MKS BASE 1.0 with Heroic HR4982 stepper drivers
+else ifeq ($(HARDWARE_MOTHERBOARD),1111)
+# MKS GEN v1.3 or 1.4
+else ifeq ($(HARDWARE_MOTHERBOARD),1112)
+# MKS GEN L
+else ifeq ($(HARDWARE_MOTHERBOARD),1113)
+# BigTreeTech or BIQU KFB2.0
+else ifeq ($(HARDWARE_MOTHERBOARD),1114)
+# zrib V2.0 (Chinese RAMPS replica)
+else ifeq ($(HARDWARE_MOTHERBOARD),1115)
+# zrib V5.2 (Chinese RAMPS replica)
+else ifeq ($(HARDWARE_MOTHERBOARD),1116)
+# Felix 2.0+ Electronics Board (RAMPS like)
+else ifeq ($(HARDWARE_MOTHERBOARD),1117)
+# Invent-A-Part RigidBoard
+else ifeq ($(HARDWARE_MOTHERBOARD),1118)
+# Invent-A-Part RigidBoard V2
+else ifeq ($(HARDWARE_MOTHERBOARD),1119)
+# Sainsmart 2-in-1 board
+else ifeq ($(HARDWARE_MOTHERBOARD),1120)
+# Ultimaker
+else ifeq ($(HARDWARE_MOTHERBOARD),1121)
+# Ultimaker (Older electronics. Pre 1.5.4. This is rare)
+else ifeq ($(HARDWARE_MOTHERBOARD),1122)
+  MCU              ?= atmega1280
+  PROG_MCU         ?= m1280
+# Azteeg X3
+else ifeq ($(HARDWARE_MOTHERBOARD),1123)
+# Azteeg X3 Pro
+else ifeq ($(HARDWARE_MOTHERBOARD),1124)
+# Ultimainboard 2.x (Uses TEMP_SENSOR 20)
+else ifeq ($(HARDWARE_MOTHERBOARD),1125)
+# Rumba
+else ifeq ($(HARDWARE_MOTHERBOARD),1126)
+# Raise3D N series Rumba derivative
+else ifeq ($(HARDWARE_MOTHERBOARD),1127)
+# Rapide Lite 200 (v1, low-cost RUMBA clone with drv)
+else ifeq ($(HARDWARE_MOTHERBOARD),1128)
+# Formbot T-Rex 2 Plus
+else ifeq ($(HARDWARE_MOTHERBOARD),1129)
+# Formbot T-Rex 3
+else ifeq ($(HARDWARE_MOTHERBOARD),1130)
+# Formbot Raptor
+else ifeq ($(HARDWARE_MOTHERBOARD),1131)
+# Formbot Raptor 2
+else ifeq ($(HARDWARE_MOTHERBOARD),1132)
+# bq ZUM Mega 3D
+else ifeq ($(HARDWARE_MOTHERBOARD),1133)
+# MakeBoard Mini v2.1.2 by MicroMake
+else ifeq ($(HARDWARE_MOTHERBOARD),1134)
+# TriGorilla Anycubic version 1.3-based on RAMPS EFB
+else ifeq ($(HARDWARE_MOTHERBOARD),1135)
+#   ... Ver 1.4
+else ifeq ($(HARDWARE_MOTHERBOARD),1136)
+#   ... Rev 1.1 (new servo pin order)
+else ifeq ($(HARDWARE_MOTHERBOARD),1137)
+# Creality: Ender-4, CR-8
+else ifeq ($(HARDWARE_MOTHERBOARD),1138)
+# Creality: CR10S, CR20, CR-X
+else ifeq ($(HARDWARE_MOTHERBOARD),1139)
+# Dagoma F5
+else ifeq ($(HARDWARE_MOTHERBOARD),1140)
+# FYSETC F6 1.3
+else ifeq ($(HARDWARE_MOTHERBOARD),1141)
+# FYSETC F6 1.4
+else ifeq ($(HARDWARE_MOTHERBOARD),1142)
+# Wanhao Duplicator i3 Plus
+else ifeq ($(HARDWARE_MOTHERBOARD),1143)
+# VORON Design
+else ifeq ($(HARDWARE_MOTHERBOARD),1144)
+# Tronxy TRONXY-V3-1.0
+else ifeq ($(HARDWARE_MOTHERBOARD),1145)
+# Z-Bolt X Series
+else ifeq ($(HARDWARE_MOTHERBOARD),1146)
+# TT OSCAR
+else ifeq ($(HARDWARE_MOTHERBOARD),1147)
+# Overlord/Overlord Pro
+else ifeq ($(HARDWARE_MOTHERBOARD),1148)
+# ADIMLab Gantry v1
+else ifeq ($(HARDWARE_MOTHERBOARD),1149)
+# ADIMLab Gantry v2
+else ifeq ($(HARDWARE_MOTHERBOARD),1150)
+# BIQU Tango V1
+else ifeq ($(HARDWARE_MOTHERBOARD),1151)
+# MKS GEN L V2
+else ifeq ($(HARDWARE_MOTHERBOARD),1152)
+# MKS GEN L V2.1
+else ifeq ($(HARDWARE_MOTHERBOARD),1153)
+# Copymaster 3D
+else ifeq ($(HARDWARE_MOTHERBOARD),1154)
+# Ortur 4
+else ifeq ($(HARDWARE_MOTHERBOARD),1155)
+# Tenlog D3 Hero IDEX printer
+else ifeq ($(HARDWARE_MOTHERBOARD),1156)
+# Ramps S 1.2 by Sakul.cz (Power outputs: Hotend0, Hotend1, Fan, Bed)
+else ifeq ($(HARDWARE_MOTHERBOARD),1157)
+# Ramps S 1.2 by Sakul.cz (Power outputs: Hotend0, Hotend1, Hotend2, Bed)
+else ifeq ($(HARDWARE_MOTHERBOARD),1158)
+# Ramps S 1.2 by Sakul.cz (Power outputs: Hotend, Fan0, Fan1, Bed)
+else ifeq ($(HARDWARE_MOTHERBOARD),1159)
+# Longer LK1 PRO / Alfawise U20 Pro (PRO version)
+else ifeq ($(HARDWARE_MOTHERBOARD),1160)
+# Longer LKx PRO / Alfawise Uxx Pro (PRO version)
+else ifeq ($(HARDWARE_MOTHERBOARD),1161)
+
+
 # 3Drag Controller
 else ifeq ($(HARDWARE_MOTHERBOARD),1100)
 # Velleman K8200 Controller (derived from 3Drag Controller)
@@ -358,20 +486,38 @@ else ifeq ($(HARDWARE_MOTHERBOARD),1311)
 else ifeq ($(HARDWARE_MOTHERBOARD),1312)
 # Mega controller
 else ifeq ($(HARDWARE_MOTHERBOARD),1313)
-# Geeetech GT2560 Rev B for Mecreator2
+# Geeetech GT2560 Rev A
 else ifeq ($(HARDWARE_MOTHERBOARD),1314)
-# Geeetech GT2560 Rev. A
+# Geeetech GT2560 Rev A+ (with auto level probe)
 else ifeq ($(HARDWARE_MOTHERBOARD),1315)
-# Geeetech GT2560 Rev. A+ (with auto level probe)
+# Geeetech GT2560 Rev B
 else ifeq ($(HARDWARE_MOTHERBOARD),1316)
-# Geeetech GT2560 Rev B for A10(M/D)
+# Geeetech GT2560 Rev B for A10(M/T/D)
 else ifeq ($(HARDWARE_MOTHERBOARD),1317)
-# Geeetech GT2560 Rev B for A20(M/D)
+# Geeetech GT2560 Rev B for A10(M/T/D)
 else ifeq ($(HARDWARE_MOTHERBOARD),1318)
-# Einstart retrofit
+# Geeetech GT2560 Rev B for Mecreator2
 else ifeq ($(HARDWARE_MOTHERBOARD),1319)
-# Wanhao 0ne+ i3 Mini
+# Geeetech GT2560 Rev B for A20(M/T/D)
 else ifeq ($(HARDWARE_MOTHERBOARD),1320)
+# Einstart retrofit
+else ifeq ($(HARDWARE_MOTHERBOARD),1321)
+# Wanhao 0ne+ i3 Mini
+else ifeq ($(HARDWARE_MOTHERBOARD),1322)
+# Leapfrog Xeed 2015
+else ifeq ($(HARDWARE_MOTHERBOARD),1323)
+# PICA Shield (original version)
+else ifeq ($(HARDWARE_MOTHERBOARD),1324)
+# PICA Shield (rev C or later)
+else ifeq ($(HARDWARE_MOTHERBOARD),1325)
+# Intamsys 4.0 (Funmat HT)
+else ifeq ($(HARDWARE_MOTHERBOARD),1326)
+# Malyan M180 Mainboard Version 2 (no display function, direct gcode only)
+else ifeq ($(HARDWARE_MOTHERBOARD),1327)
+# Geeetech GT2560 Rev B for A20(M/T/D)
+else ifeq ($(HARDWARE_MOTHERBOARD),1328)
+# Mega controller & Protoneer CNC Shield V3.00
+else ifeq ($(HARDWARE_MOTHERBOARD),1329)
 
 #
 # ATmega1281, ATmega2561
@@ -445,6 +591,11 @@ else ifeq ($(HARDWARE_MOTHERBOARD),1510)
   HARDWARE_VARIANT ?= Sanguino
   MCU              ?= atmega1284p
   PROG_MCU         ?= m1284p
+# ZoneStar ZMIB V2
+else ifeq ($(HARDWARE_MOTHERBOARD),1511)
+  HARDWARE_VARIANT ?= Sanguino
+  MCU              ?= atmega1284p
+  PROG_MCU         ?= m1284p
 
 #
 # Other ATmega644P, ATmega644, ATmega1284P

Marlin/Version.h

@@ -28,7 +28,7 @@
 /**
  * Marlin release version identifier
  */
-//#define SHORT_BUILD_VERSION "2.0.9.1"
+//#define SHORT_BUILD_VERSION "2.0.9.3"
 
 /**
  * Verbose version identifier which should contain a reference to the location
@@ -41,7 +41,7 @@
  * here we define this default string as the date where the latest release
  * version was tagged.
  */
-//#define STRING_DISTRIBUTION_DATE "2021-06-27"
+//#define STRING_DISTRIBUTION_DATE "2021-12-25"
 
 /**
  * Defines a generic printer name to be output to the LCD after booting Marlin.

Marlin/src/HAL/AVR/HAL.cpp

@@ -35,12 +35,31 @@
 // Public Variables
 // ------------------------
 
-//uint8_t MCUSR;
+// Don't initialize/override variable (which would happen in .init4)
+uint8_t reset_reason __attribute__((section(".noinit")));
 
 // ------------------------
 // Public functions
 // ------------------------
 
+__attribute__((naked))             // Don't output function pro- and epilogue
+__attribute__((used))              // Output the function, even if "not used"
+__attribute__((section(".init3"))) // Put in an early user definable section
+void HAL_save_reset_reason() {
+  #if ENABLED(OPTIBOOT_RESET_REASON)
+    __asm__ __volatile__(
+      A("STS %0, r2")
+      : "=m"(reset_reason)
+    );
+  #else
+    reset_reason = MCUSR;
+  #endif
+
+  // Clear within 16ms since WDRF bit enables a 16ms watchdog timer -> Boot loop
+  MCUSR = 0;
+  wdt_disable();
+}
+
 void HAL_init() {
   // Init Servo Pins
   #define INIT_SERVO(N) OUT_WRITE(SERVO##N##_PIN, LOW)

Marlin/src/HAL/AVR/HAL.h

@@ -39,6 +39,19 @@
 #include <avr/interrupt.h>
 #include <avr/io.h>
 
+//
+// Default graphical display delays
+//
+#if F_CPU >= 20000000
+  #define CPU_ST7920_DELAY_1 150
+  #define CPU_ST7920_DELAY_2   0
+  #define CPU_ST7920_DELAY_3 150
+#elif F_CPU == 16000000
+  #define CPU_ST7920_DELAY_1 125
+  #define CPU_ST7920_DELAY_2   0
+  #define CPU_ST7920_DELAY_3 188
+#endif
+
 #ifndef pgm_read_ptr
   // Compatibility for avr-libc 1.8.0-4.1 included with Ubuntu for
   // Windows Subsystem for Linux on Windows 10 as of 10/18/2019
@@ -78,7 +91,7 @@ typedef int8_t pin_t;
 // Public Variables
 // ------------------------
 
-//extern uint8_t MCUSR;
+extern uint8_t reset_reason;
 
 // Serial ports
 #ifdef USBCON
@@ -139,21 +152,19 @@ void HAL_init();
 
 //void _delay_ms(const int delay);
 
-inline void HAL_clear_reset_source() { MCUSR = 0; }
-inline uint8_t HAL_get_reset_source() { return MCUSR; }
+inline void HAL_clear_reset_source() { }
+inline uint8_t HAL_get_reset_source() { return reset_reason; }
 
 void HAL_reboot();
 
+#pragma GCC diagnostic push
 #if GCC_VERSION <= 50000
-  #pragma GCC diagnostic push
   #pragma GCC diagnostic ignored "-Wunused-function"
 #endif
 
 extern "C" int freeMemory();
 
-#if GCC_VERSION <= 50000
-  #pragma GCC diagnostic pop
-#endif
+#pragma GCC diagnostic pop
 
 // ADC
 #ifdef DIDR2
@@ -210,7 +221,7 @@ void set_pwm_frequency(const pin_t pin, int f_desired);
 
 /**
  * set_pwm_duty
- *  Sets the PWM duty cycle of the provided pin to the provided value
+ *  Set the PWM duty cycle of the provided pin to the provided value
  *  Optionally allows inverting the duty cycle [default = false]
  *  Optionally allows changing the maximum size of the provided value to enable finer PWM duty control [default = 255]
  */

Marlin/src/HAL/AVR/HAL_SPI.cpp

@@ -34,7 +34,9 @@
 #include "../../inc/MarlinConfig.h"
 
 void spiBegin() {
-  OUT_WRITE(SD_SS_PIN, HIGH);
+  #if PIN_EXISTS(SD_SS)
+    OUT_WRITE(SD_SS_PIN, HIGH);
+  #endif
   SET_OUTPUT(SD_SCK_PIN);
   SET_INPUT(SD_MISO_PIN);
   SET_OUTPUT(SD_MOSI_PIN);
@@ -74,7 +76,8 @@ void spiBegin() {
       #elif defined(PRR0)
         PRR0
       #endif
-        , PRSPI);
+      , PRSPI
+    );
 
     SPCR = _BV(SPE) | _BV(MSTR) | (spiRate >> 1);
     SPSR = spiRate & 1 || spiRate == 6 ? 0 : _BV(SPI2X);

Marlin/src/HAL/AVR/MarlinSPI.h

@@ -0,0 +1,26 @@
+/**
+ * Marlin 3D Printer Firmware
+ * Copyright (c) 2021 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
+ *
+ * Based on Sprinter and grbl.
+ * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ *
+ */
+#pragma once
+
+#include <SPI.h>
+
+using MarlinSPI = SPIClass;

Marlin/src/HAL/AVR/fast_pwm.cpp

@@ -22,11 +22,10 @@
 #ifdef __AVR__
 
 #include "../../inc/MarlinConfigPre.h"
+#include "HAL.h"
 
 #if NEEDS_HARDWARE_PWM // Specific meta-flag for features that mandate PWM
 
-#include "HAL.h"
-
 struct Timer {
   volatile uint8_t* TCCRnQ[3];  // max 3 TCCR registers per timer
   volatile uint16_t* OCRnQ[3];  // max 3 OCR registers per timer
@@ -55,8 +54,8 @@ Timer get_pwm_timer(const pin_t pin) {
       case TIMER1A: case TIMER1B:
     #endif
                                         break;
-    #if defined(TCCR2) || defined(TCCR2A)
-      #ifdef TCCR2
+    #if HAS_TCCR2 || defined(TCCR2A)
+      #if HAS_TCCR2
         case TIMER2: {
           Timer timer = {
             /*TCCRnQ*/  { &TCCR2, nullptr, nullptr },
@@ -153,7 +152,7 @@ Timer get_pwm_timer(const pin_t pin) {
 
 void set_pwm_frequency(const pin_t pin, int f_desired) {
   Timer timer = get_pwm_timer(pin);
-  if (timer.n == 0) return; // Don't proceed if protected timer or not recognised
+  if (timer.n == 0) return; // Don't proceed if protected timer or not recognized
   uint16_t size;
   if (timer.n == 2) size = 255; else size = 65535;
 
@@ -201,16 +200,10 @@ void set_pwm_frequency(const pin_t pin, int f_desired) {
         res = res_temp_fast;
         j = i;
         // Set the Wave Generation Mode to FAST PWM
-        if (timer.n == 2) {
-          wgm = (
-            #if ENABLED(USE_OCR2A_AS_TOP)
-              WGM2_FAST_PWM_OCR2A
-            #else
-              WGM2_FAST_PWM
-            #endif
-          );
-        }
-        else wgm = WGM_FAST_PWM_ICRn;
+        if (timer.n == 2)
+          wgm = TERN(USE_OCR2A_AS_TOP, WGM2_FAST_PWM_OCR2A, WGM2_FAST_PWM);
+        else
+          wgm = WGM_FAST_PWM_ICRn;
       }
       // If PHASE CORRECT values are closes to desired f
       else if (f_phase_diff < f_diff) {
@@ -218,16 +211,10 @@ void set_pwm_frequency(const pin_t pin, int f_desired) {
         res = res_temp_phase_correct;
         j = i;
         // Set the Wave Generation Mode to PWM PHASE CORRECT
-        if (timer.n == 2) {
-          wgm = (
-            #if ENABLED(USE_OCR2A_AS_TOP)
-              WGM2_PWM_PC_OCR2A
-            #else
-              WGM2_PWM_PC
-            #endif
-          );
-        }
-        else wgm = WGM_PWM_PC_ICRn;
+        if (timer.n == 2)
+          wgm = TERN(USE_OCR2A_AS_TOP, WGM2_PWM_PC_OCR2A, WGM2_FAST_PWM);
+        else
+          wgm = WGM_PWM_PC_ICRn;
       }
     }
   }
@@ -235,48 +222,39 @@ void set_pwm_frequency(const pin_t pin, int f_desired) {
   _SET_CSn(timer.TCCRnQ, j);
 
   if (timer.n == 2) {
-    #if ENABLED(USE_OCR2A_AS_TOP)
-      _SET_OCRnQ(timer.OCRnQ, 0, res);  // Set OCR2A value (TOP) = res
-    #endif
+    TERN_(USE_OCR2A_AS_TOP, _SET_OCRnQ(timer.OCRnQ, 0, res));  // Set OCR2A value (TOP) = res
   }
   else
     _SET_ICRn(timer.ICRn, res);         // Set ICRn value (TOP) = res
 }
 
+#endif // NEEDS_HARDWARE_PWM
+
 void set_pwm_duty(const pin_t pin, const uint16_t v, const uint16_t v_size/*=255*/, const bool invert/*=false*/) {
-  // If v is 0 or v_size (max), digitalWrite to LOW or HIGH.
-  // Note that digitalWrite also disables pwm output for us (sets COM bit to 0)
-  if (v == 0)
-    digitalWrite(pin, invert);
-  else if (v == v_size)
-    digitalWrite(pin, !invert);
-  else {
-    Timer timer = get_pwm_timer(pin);
-    if (timer.n == 0) return; // Don't proceed if protected timer or not recognised
-    // Set compare output mode to CLEAR -> SET or SET -> CLEAR (if inverted)
-    _SET_COMnQ(timer.TCCRnQ, (timer.q
-        #ifdef TCCR2
-          + (timer.q == 2) // COM20 is on bit 4 of TCCR2, thus requires q + 1 in the macro
-        #endif
-      ), COM_CLEAR_SET + invert
-    );
+  #if NEEDS_HARDWARE_PWM
 
-    uint16_t top;
-    if (timer.n == 2) { // if TIMER2
-      top = (
-        #if ENABLED(USE_OCR2A_AS_TOP)
-          *timer.OCRnQ[0] // top = OCR2A
-        #else
-          255 // top = 0xFF (max)
-        #endif
-      );
+    // If v is 0 or v_size (max), digitalWrite to LOW or HIGH.
+    // Note that digitalWrite also disables pwm output for us (sets COM bit to 0)
+    if (v == 0)
+      digitalWrite(pin, invert);
+    else if (v == v_size)
+      digitalWrite(pin, !invert);
+    else {
+      Timer timer = get_pwm_timer(pin);
+      if (timer.n == 0) return; // Don't proceed if protected timer or not recognized
+      // Set compare output mode to CLEAR -> SET or SET -> CLEAR (if inverted)
+      _SET_COMnQ(timer.TCCRnQ, timer.q TERN_(HAS_TCCR2, + (timer.q == 2)), COM_CLEAR_SET + invert); // COM20 is on bit 4 of TCCR2, so +1 for q==2
+      const uint16_t top = timer.n == 2 ? TERN(USE_OCR2A_AS_TOP, *timer.OCRnQ[0], 255) : *timer.ICRn;
+      _SET_OCRnQ(timer.OCRnQ, timer.q, uint16_t(uint32_t(v) * top / v_size)); // Scale 8/16-bit v to top value
     }
-    else
-      top = *timer.ICRn; // top = ICRn
 
-    _SET_OCRnQ(timer.OCRnQ, timer.q, v * float(top) / float(v_size)); // Scale 8/16-bit v to top value
-  }
+  #else
+
+    analogWrite(pin, v);
+    UNUSED(v_size);
+    UNUSED(invert);
+
+  #endif
 }
 
-#endif // NEEDS_HARDWARE_PWM
 #endif // __AVR__

Marlin/src/HAL/AVR/fastio.cpp

@@ -267,11 +267,11 @@ uint16_t set_pwm_frequency_hz(const_float_t hz, const float dca, const float dcb
     SET_WGM(5, FAST_PWM_ICRn);            // Fast PWM with ICR5 as TOP
 
     //SERIAL_ECHOLNPGM("Timer 5 Settings:");
-    //SERIAL_ECHOLNPAIR("  Prescaler=", prescaler);
-    //SERIAL_ECHOLNPAIR("        TOP=", ICR5);
-    //SERIAL_ECHOLNPAIR("      OCR5A=", OCR5A);
-    //SERIAL_ECHOLNPAIR("      OCR5B=", OCR5B);
-    //SERIAL_ECHOLNPAIR("      OCR5C=", OCR5C);
+    //SERIAL_ECHOLNPGM("  Prescaler=", prescaler);
+    //SERIAL_ECHOLNPGM("        TOP=", ICR5);
+    //SERIAL_ECHOLNPGM("      OCR5A=", OCR5A);
+    //SERIAL_ECHOLNPGM("      OCR5B=", OCR5B);
+    //SERIAL_ECHOLNPGM("      OCR5C=", OCR5C);
   }
   else {
     // Restore the default for Timer 5

Marlin/src/HAL/AVR/fastio.h

@@ -211,32 +211,32 @@ enum ClockSource2 : char {
 
 // Set Clock Select bits
 // Ex: SET_CS3(PRESCALER_64);
+#ifdef TCCR2
+  #define HAS_TCCR2 1
+#endif
 #define _SET_CS(T,V) (TCCR##T##B = (TCCR##T##B & ~(0x7 << CS##T##0)) | ((int(V) & 0x7) << CS##T##0))
 #define _SET_CS0(V) _SET_CS(0,V)
 #define _SET_CS1(V) _SET_CS(1,V)
-#ifdef TCCR2
-  #define _SET_CS2(V) (TCCR2 = (TCCR2 & ~(0x7 << CS20)) | (int(V) << CS20))
-#else
-  #define _SET_CS2(V) _SET_CS(2,V)
-#endif
 #define _SET_CS3(V) _SET_CS(3,V)
 #define _SET_CS4(V) _SET_CS(4,V)
 #define _SET_CS5(V) _SET_CS(5,V)
 #define SET_CS0(V) _SET_CS0(CS_##V)
 #define SET_CS1(V) _SET_CS1(CS_##V)
-#ifdef TCCR2
+
+#if HAS_TCCR2
+  #define _SET_CS2(V) (TCCR2 = (TCCR2 & ~(0x7 << CS20)) | (int(V) << CS20))
   #define SET_CS2(V) _SET_CS2(CS2_##V)
 #else
+  #define _SET_CS2(V) _SET_CS(2,V)
   #define SET_CS2(V) _SET_CS2(CS_##V)
 #endif
+
 #define SET_CS3(V) _SET_CS3(CS_##V)
 #define SET_CS4(V) _SET_CS4(CS_##V)
 #define SET_CS5(V) _SET_CS5(CS_##V)
 #define SET_CS(T,V) SET_CS##T(V)
 // Runtime (see set_pwm_frequency)
-#define _SET_CSn(TCCRnQ, V) do{ \
-    (*(TCCRnQ)[1] = (*(TCCRnQ[1]) & ~(0x7 << 0)) | ((int(V) & 0x7) << 0)); \
-  }while(0)
+#define _SET_CSn(TCCRnQ, V) (*(TCCRnQ)[1] = (*(TCCRnQ[1]) & ~(0x7 << 0)) | ((int(V) & 0x7) << 0))
 
 // Set Compare Mode bits
 // Ex: SET_COMS(4,CLEAR_SET,CLEAR_SET,CLEAR_SET);
@@ -247,21 +247,15 @@ enum ClockSource2 : char {
 #define SET_COMC(T,V) SET_COM(T,C,V)
 #define SET_COMS(T,V1,V2,V3) do{ SET_COMA(T,V1); SET_COMB(T,V2); SET_COMC(T,V3); }while(0)
 // Runtime (see set_pwm_duty)
-#define _SET_COMnQ(TCCRnQ, Q, V) do{ \
-    (*(TCCRnQ)[0] = (*(TCCRnQ)[0] & ~(0x3 << (6-2*(Q)))) | (int(V) << (6-2*(Q)))); \
-  }while(0)
+#define _SET_COMnQ(TCCRnQ, Q, V) (*(TCCRnQ)[0] = (*(TCCRnQ)[0] & ~(0x3 << (6-2*(Q)))) | (int(V) << (6-2*(Q))))
 
 // Set OCRnQ register
 // Runtime (see set_pwm_duty):
-#define _SET_OCRnQ(OCRnQ, Q, V) do{ \
-    (*(OCRnQ)[(Q)] = (0x0000) | (int(V) & 0xFFFF)); \
-  }while(0)
+#define _SET_OCRnQ(OCRnQ, Q, V) (*(OCRnQ)[Q] = int(V) & 0xFFFF)
 
 // Set ICRn register (one per timer)
 // Runtime (see set_pwm_frequency)
-#define _SET_ICRn(ICRn, V) do{ \
-    (*(ICRn) = (0x0000) | (int(V) & 0xFFFF)); \
-  }while(0)
+#define _SET_ICRn(ICRn, V) (*(ICRn) = int(V) & 0xFFFF)
 
 // Set Noise Canceler bit
 // Ex: SET_ICNC(2,1)
@@ -284,7 +278,7 @@ enum ClockSource2 : char {
  * PWM availability macros
  */
 
-// Determine which harware PWMs are already in use
+// Determine which hardware PWMs are already in use
 #define _PWM_CHK_FAN_B(P) (P == E0_AUTO_FAN_PIN || P == E1_AUTO_FAN_PIN || P == E2_AUTO_FAN_PIN || P == E3_AUTO_FAN_PIN || P == E4_AUTO_FAN_PIN || P == E5_AUTO_FAN_PIN || P == E6_AUTO_FAN_PIN || P == E7_AUTO_FAN_PIN || P == CHAMBER_AUTO_FAN_PIN || P == COOLER_AUTO_FAN_PIN)
 #if PIN_EXISTS(CONTROLLER_FAN)
   #define PWM_CHK_FAN_B(P) (_PWM_CHK_FAN_B(P) || P == CONTROLLER_FAN_PIN)

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

@@ -28,14 +28,14 @@
 /**
  * Checks for FAST PWM
  */
-#if ENABLED(FAST_PWM_FAN) && (ENABLED(USE_OCR2A_AS_TOP) && defined(TCCR2))
+#if ALL(FAST_PWM_FAN, USE_OCR2A_AS_TOP, HAS_TCCR2)
   #error "USE_OCR2A_AS_TOP does not apply to devices with a single output TIMER2"
 #endif
 
 /**
  * Sanity checks for Spindle / Laser PWM
  */
-#if ENABLED(SPINDLE_LASER_PWM)
+#if ENABLED(SPINDLE_LASER_USE_PWM)
   #include "../ServoTimers.h"   // Needed to check timer availability (_useTimer3)
   #if SPINDLE_LASER_PWM_PIN == 4 || WITHIN(SPINDLE_LASER_PWM_PIN, 11, 13)
     #error "Counter/Timer for SPINDLE_LASER_PWM_PIN is used by a system interrupt."
@@ -43,7 +43,7 @@
     #error "Counter/Timer for SPINDLE_LASER_PWM_PIN is used by the servo system."
   #endif
 #elif defined(SPINDLE_LASER_FREQUENCY)
-  #error "SPINDLE_LASER_FREQUENCY requires SPINDLE_LASER_PWM."
+  #error "SPINDLE_LASER_FREQUENCY requires SPINDLE_LASER_USE_PWM."
 #endif
 
 /**

Marlin/src/HAL/AVR/pinsDebug.h

@@ -2,6 +2,9 @@
  * 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
@@ -99,7 +102,7 @@ void PRINT_ARRAY_NAME(uint8_t x) {
       return true;                                              \
     } else return false
 
-
+#define ABTEST(N) defined(TCCR##N##A) && defined(COM##N##A1)
 
 /**
  * Print a pin's PWM status.
@@ -110,7 +113,7 @@ static bool pwm_status(uint8_t pin) {
 
   switch (digitalPinToTimer_DEBUG(pin)) {
 
-    #if defined(TCCR0A) && defined(COM0A1)
+    #if ABTEST(0)
       #ifdef TIMER0A
         #if !AVR_AT90USB1286_FAMILY  // not available in Teensyduino type IDEs
           PWM_CASE(0, A);
@@ -119,20 +122,20 @@ static bool pwm_status(uint8_t pin) {
       PWM_CASE(0, B);
     #endif
 
-    #if defined(TCCR1A) && defined(COM1A1)
+    #if ABTEST(1)
       PWM_CASE(1, A);
       PWM_CASE(1, B);
-     #if defined(COM1C1) && defined(TIMER1C)
-      PWM_CASE(1, C);
-     #endif
+      #if defined(COM1C1) && defined(TIMER1C)
+        PWM_CASE(1, C);
+      #endif
     #endif
 
-    #if defined(TCCR2A) && defined(COM2A1)
+    #if ABTEST(2)
       PWM_CASE(2, A);
       PWM_CASE(2, B);
     #endif
 
-    #if defined(TCCR3A) && defined(COM3A1)
+    #if ABTEST(3)
       PWM_CASE(3, A);
       PWM_CASE(3, B);
       #ifdef COM3C1
@@ -146,7 +149,7 @@ static bool pwm_status(uint8_t pin) {
       PWM_CASE(4, C);
     #endif
 
-    #if defined(TCCR5A) && defined(COM5A1)
+    #if ABTEST(5)
       PWM_CASE(5, A);
       PWM_CASE(5, B);
       PWM_CASE(5, C);
@@ -163,16 +166,16 @@ static bool pwm_status(uint8_t pin) {
 const volatile uint8_t* const PWM_other[][3] PROGMEM = {
     { &TCCR0A, &TCCR0B, &TIMSK0 },
     { &TCCR1A, &TCCR1B, &TIMSK1 },
-  #if defined(TCCR2A) && defined(COM2A1)
+  #if ABTEST(2)
     { &TCCR2A, &TCCR2B, &TIMSK2 },
   #endif
-  #if defined(TCCR3A) && defined(COM3A1)
+  #if ABTEST(3)
     { &TCCR3A, &TCCR3B, &TIMSK3 },
   #endif
   #ifdef TCCR4A
     { &TCCR4A, &TCCR4B, &TIMSK4 },
   #endif
-  #if defined(TCCR5A) && defined(COM5A1)
+  #if ABTEST(5)
     { &TCCR5A, &TCCR5B, &TIMSK5 },
   #endif
 };
@@ -192,11 +195,11 @@ const volatile uint8_t* const PWM_OCR[][3] PROGMEM = {
    { (const uint8_t*)&OCR1A, (const uint8_t*)&OCR1B, 0 },
   #endif
 
-  #if defined(TCCR2A) && defined(COM2A1)
+  #if ABTEST(2)
     { &OCR2A, &OCR2B, 0 },
   #endif
 
-  #if defined(TCCR3A) && defined(COM3A1)
+  #if ABTEST(3)
     #ifdef COM3C1
       { (const uint8_t*)&OCR3A, (const uint8_t*)&OCR3B, (const uint8_t*)&OCR3C },
     #else
@@ -208,7 +211,7 @@ const volatile uint8_t* const PWM_OCR[][3] PROGMEM = {
     { (const uint8_t*)&OCR4A, (const uint8_t*)&OCR4B, (const uint8_t*)&OCR4C },
   #endif
 
-  #if defined(TCCR5A) && defined(COM5A1)
+  #if ABTEST(5)
     { (const uint8_t*)&OCR5A, (const uint8_t*)&OCR5B, (const uint8_t*)&OCR5C },
   #endif
 };
@@ -235,9 +238,9 @@ static void print_is_also_tied() { SERIAL_ECHOPGM(" is also tied to this pin");
 
 inline void com_print(const uint8_t N, const uint8_t Z) {
   const uint8_t *TCCRA = (uint8_t*)TCCR_A(N);
-  SERIAL_ECHOPAIR("    COM", AS_CHAR('0' + N));
+  SERIAL_ECHOPGM("    COM", AS_DIGIT(N));
   SERIAL_CHAR(Z);
-  SERIAL_ECHOPAIR(": ", int((*TCCRA >> (6 - Z * 2)) & 0x03));
+  SERIAL_ECHOPGM(": ", int((*TCCRA >> (6 - Z * 2)) & 0x03));
 }
 
 void timer_prefix(uint8_t T, char L, uint8_t N) {  // T - timer    L - pwm  N - WGM bit layout
@@ -247,7 +250,7 @@ void timer_prefix(uint8_t T, char L, uint8_t N) {  // T - timer    L - pwm  N -
   uint8_t WGM = (((*TCCRB & _BV(WGM_2)) >> 1) | (*TCCRA & (_BV(WGM_0) | _BV(WGM_1))));
   if (N == 4) WGM |= ((*TCCRB & _BV(WGM_3)) >> 1);
 
-  SERIAL_ECHOPAIR("    TIMER", AS_CHAR(T + '0'));
+  SERIAL_ECHOPGM("    TIMER", AS_DIGIT(T));
   SERIAL_CHAR(L);
   SERIAL_ECHO_SP(3);
 
@@ -259,14 +262,14 @@ void timer_prefix(uint8_t T, char L, uint8_t N) {  // T - timer    L - pwm  N -
     const uint16_t *OCRVAL16 = (uint16_t*)OCR_VAL(T, L - 'A');
     PWM_PRINT(*OCRVAL16);
   }
-  SERIAL_ECHOPAIR("    WGM: ", WGM);
+  SERIAL_ECHOPGM("    WGM: ", WGM);
   com_print(T,L);
-  SERIAL_ECHOPAIR("    CS: ", (*TCCRB & (_BV(CS_0) | _BV(CS_1) | _BV(CS_2)) ));
-  SERIAL_ECHOPAIR("    TCCR", AS_CHAR(T + '0'), "A: ", *TCCRA);
-  SERIAL_ECHOPAIR("    TCCR", AS_CHAR(T + '0'), "B: ", *TCCRB);
+  SERIAL_ECHOPGM("    CS: ", (*TCCRB & (_BV(CS_0) | _BV(CS_1) | _BV(CS_2)) ));
+  SERIAL_ECHOPGM("    TCCR", AS_DIGIT(T), "A: ", *TCCRA);
+  SERIAL_ECHOPGM("    TCCR", AS_DIGIT(T), "B: ", *TCCRB);
 
   const uint8_t *TMSK = (uint8_t*)TIMSK(T);
-  SERIAL_ECHOPAIR("    TIMSK", AS_CHAR(T + '0'), ": ", *TMSK);
+  SERIAL_ECHOPGM("    TIMSK", AS_DIGIT(T), ": ", *TMSK);
 
   const uint8_t OCIE = L - 'A' + 1;
   if (N == 3) { if (WGM == 0 || WGM == 2 || WGM ==  4 || WGM ==  6) err_is_counter(); }
@@ -278,7 +281,7 @@ void timer_prefix(uint8_t T, char L, uint8_t N) {  // T - timer    L - pwm  N -
 static void pwm_details(uint8_t pin) {
   switch (digitalPinToTimer_DEBUG(pin)) {
 
-    #if defined(TCCR0A) && defined(COM0A1)
+    #if ABTEST(0)
       #ifdef TIMER0A
         #if !AVR_AT90USB1286_FAMILY  // not available in Teensyduino type IDEs
           case TIMER0A: timer_prefix(0, 'A', 3); break;
@@ -287,7 +290,7 @@ static void pwm_details(uint8_t pin) {
       case TIMER0B: timer_prefix(0, 'B', 3); break;
     #endif
 
-    #if defined(TCCR1A) && defined(COM1A1)
+    #if ABTEST(1)
       case TIMER1A: timer_prefix(1, 'A', 4); break;
       case TIMER1B: timer_prefix(1, 'B', 4); break;
       #if defined(COM1C1) && defined(TIMER1C)
@@ -295,12 +298,12 @@ static void pwm_details(uint8_t pin) {
       #endif
     #endif
 
-    #if defined(TCCR2A) && defined(COM2A1)
+    #if ABTEST(2)
       case TIMER2A: timer_prefix(2, 'A', 3); break;
       case TIMER2B: timer_prefix(2, 'B', 3); break;
     #endif
 
-    #if defined(TCCR3A) && defined(COM3A1)
+    #if ABTEST(3)
       case TIMER3A: timer_prefix(3, 'A', 4); break;
       case TIMER3B: timer_prefix(3, 'B', 4); break;
       #ifdef COM3C1
@@ -314,7 +317,7 @@ static void pwm_details(uint8_t pin) {
       case TIMER4C: timer_prefix(4, 'C', 4); break;
     #endif
 
-    #if defined(TCCR5A) && defined(COM5A1)
+    #if ABTEST(5)
       case TIMER5A: timer_prefix(5, 'A', 4); break;
       case TIMER5B: timer_prefix(5, 'B', 4); break;
       case TIMER5C: timer_prefix(5, 'C', 4); break;
@@ -348,7 +351,6 @@ static void pwm_details(uint8_t pin) {
   #endif
 } // pwm_details
 
-
 #ifndef digitalRead_mod                   // Use Teensyduino's version of digitalRead - it doesn't disable the PWMs
   int digitalRead_mod(const int8_t pin) { // same as digitalRead except the PWM stop section has been removed
     const uint8_t port = digitalPinToPort_DEBUG(pin);
@@ -393,3 +395,6 @@ static void pwm_details(uint8_t pin) {
 #endif
 
 #define PRINT_PIN(p) do{ sprintf_P(buffer, PSTR("%3d "), p); SERIAL_ECHO(buffer); }while(0)
+#define PRINT_PIN_ANALOG(p) do{ sprintf_P(buffer, PSTR(" (A%2d)  "), DIGITAL_PIN_TO_ANALOG_PIN(pin)); SERIAL_ECHO(buffer); }while(0)
+
+#undef ABTEST

Marlin/src/HAL/AVR/pinsDebug_Teensyduino.h

@@ -2,6 +2,9 @@
  * 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

Marlin/src/HAL/AVR/pinsDebug_plus_70.h

@@ -2,6 +2,9 @@
  * 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

Marlin/src/HAL/AVR/timers.h

@@ -34,14 +34,14 @@ typedef uint16_t hal_timer_t;
 
 #define HAL_TIMER_RATE          ((F_CPU) / 8)    // i.e., 2MHz or 2.5MHz
 
-#ifndef STEP_TIMER_NUM
-  #define STEP_TIMER_NUM        1
+#ifndef MF_TIMER_STEP
+  #define MF_TIMER_STEP         1
 #endif
-#ifndef PULSE_TIMER_NUM
-  #define PULSE_TIMER_NUM       STEP_TIMER_NUM
+#ifndef MF_TIMER_PULSE
+  #define MF_TIMER_PULSE        MF_TIMER_STEP
 #endif
-#ifndef TEMP_TIMER_NUM
-  #define TEMP_TIMER_NUM        0
+#ifndef MF_TIMER_TEMP
+  #define MF_TIMER_TEMP         0
 #endif
 
 #define TEMP_TIMER_FREQUENCY    ((F_CPU) / 64.0 / 256.0)
@@ -64,7 +64,7 @@ typedef uint16_t hal_timer_t;
 
 FORCE_INLINE void HAL_timer_start(const uint8_t timer_num, const uint32_t) {
   switch (timer_num) {
-    case STEP_TIMER_NUM:
+    case MF_TIMER_STEP:
       // waveform generation = 0100 = CTC
       SET_WGM(1, CTC_OCRnA);
 
@@ -84,7 +84,7 @@ FORCE_INLINE void HAL_timer_start(const uint8_t timer_num, const uint32_t) {
       TCNT1 = 0;
       break;
 
-    case TEMP_TIMER_NUM:
+    case MF_TIMER_TEMP:
       // Use timer0 for temperature measurement
       // Interleave temperature interrupt with millies interrupt
       OCR0B = 128;
@@ -109,8 +109,8 @@ FORCE_INLINE void HAL_timer_start(const uint8_t timer_num, const uint32_t) {
  * (otherwise, characters will be lost due to UART overflow).
  * Then: Stepper, Endstops, Temperature, and -finally- all others.
  */
-#define HAL_timer_isr_prologue(TIMER_NUM)
-#define HAL_timer_isr_epilogue(TIMER_NUM)
+#define HAL_timer_isr_prologue(T)
+#define HAL_timer_isr_epilogue(T)
 
 /* 18 cycles maximum latency */
 #ifndef HAL_STEP_TIMER_ISR

Marlin/src/HAL/AVR/u8g_com_HAL_AVR_sw_spi.cpp

@@ -62,10 +62,10 @@
 #include "../shared/Marduino.h"
 #include "../shared/Delay.h"
 
-#include <U8glib.h>
+#include <U8glib-HAL.h>
 
-uint8_t u8g_bitData, u8g_bitNotData, u8g_bitClock, u8g_bitNotClock;
-volatile uint8_t *u8g_outData, *u8g_outClock;
+static uint8_t u8g_bitData, u8g_bitNotData, u8g_bitClock, u8g_bitNotClock;
+static volatile uint8_t *u8g_outData, *u8g_outClock;
 
 static void u8g_com_arduino_init_shift_out(uint8_t dataPin, uint8_t clockPin) {
   u8g_outData = portOutputRegister(digitalPinToPort(dataPin));

Marlin/src/HAL/DUE/HAL.h

@@ -144,6 +144,11 @@ inline void HAL_adc_init() {}//todo
 void HAL_adc_start_conversion(const uint8_t ch);
 uint16_t HAL_adc_get_result();
 
+//
+// PWM
+//
+inline void set_pwm_duty(const pin_t pin, const uint16_t v, const uint16_t=255, const bool=false) { analogWrite(pin, v); }
+
 //
 // Pin Map
 //
@@ -168,16 +173,14 @@ void HAL_init();
 //
 void _delay_ms(const int delay);
 
+#pragma GCC diagnostic push
 #if GCC_VERSION <= 50000
-  #pragma GCC diagnostic push
   #pragma GCC diagnostic ignored "-Wunused-function"
 #endif
 
 int freeMemory();
 
-#if GCC_VERSION <= 50000
-  #pragma GCC diagnostic pop
-#endif
+#pragma GCC diagnostic pop
 
 #ifdef __cplusplus
   extern "C" {

Marlin/src/HAL/DUE/HAL_SPI.cpp

@@ -240,7 +240,7 @@
   }
 
   // all the others
-  static uint32_t spiDelayCyclesX4 = 4 * (F_CPU) / 1000000; // 4µs => 125khz
+  static uint16_t spiDelayNS = 4000; // 4000ns => 125khz
 
   static uint8_t spiTransferX(uint8_t b) { // using Mode 0
     int bits = 8;
@@ -249,12 +249,12 @@
       b <<= 1; // little setup time
 
       WRITE(SD_SCK_PIN, HIGH);
-      DELAY_CYCLES(spiDelayCyclesX4);
+      DELAY_NS(spiDelayNS);
 
       b |= (READ(SD_MISO_PIN) != 0);
 
       WRITE(SD_SCK_PIN, LOW);
-      DELAY_CYCLES(spiDelayCyclesX4);
+      DELAY_NS(spiDelayNS);
     } while (--bits);
     return b;
   }
@@ -437,7 +437,7 @@
     } while (--todo);
   }
 
-  // Pointers to generic functions for block tranfers
+  // Pointers to generic functions for block transfers
   static pfnSpiTxBlock spiTxBlock = (pfnSpiTxBlock)spiTxBlockX;
   static pfnSpiRxBlock spiRxBlock = (pfnSpiRxBlock)spiRxBlockX;
 
@@ -510,7 +510,7 @@
         spiRxBlock = (pfnSpiRxBlock)spiRxBlockX;
         break;
       default:
-        spiDelayCyclesX4 = ((F_CPU) / 1000000) >> (6 - spiRate) << 2; // spiRate of 2 gives the maximum error with current CPU
+        spiDelayNS = 4000 >> (6 - spiRate); // spiRate of 2 gives the maximum error with current CPU
         spiTransferTx = (pfnSpiTransfer)spiTransferX;
         spiTransferRx = (pfnSpiTransfer)spiTransferX;
         spiTxBlock = (pfnSpiTxBlock)spiTxBlockX;
@@ -594,18 +594,14 @@
       SPI_Configure(SPI0, ID_SPI0, SPI_MR_MSTR | SPI_MR_MODFDIS | SPI_MR_PS);
       SPI_Enable(SPI0);
 
-      SET_OUTPUT(DAC0_SYNC);
+      SET_OUTPUT(DAC0_SYNC_PIN);
       #if HAS_MULTI_EXTRUDER
-        SET_OUTPUT(DAC1_SYNC);
-        WRITE(DAC1_SYNC, HIGH);
+        OUT_WRITE(DAC1_SYNC_PIN, HIGH);
       #endif
-      SET_OUTPUT(SPI_EEPROM1_CS);
-      SET_OUTPUT(SPI_EEPROM2_CS);
-      SET_OUTPUT(SPI_FLASH_CS);
-      WRITE(DAC0_SYNC, HIGH);
-      WRITE(SPI_EEPROM1_CS, HIGH);
-      WRITE(SPI_EEPROM2_CS, HIGH);
-      WRITE(SPI_FLASH_CS, HIGH);
+      WRITE(DAC0_SYNC_PIN, HIGH);
+      OUT_WRITE(SPI_EEPROM1_CS_PIN, HIGH);
+      OUT_WRITE(SPI_EEPROM2_CS_PIN, HIGH);
+      OUT_WRITE(SPI_FLASH_CS_PIN, HIGH);
       WRITE(SD_SS_PIN, HIGH);
 
       OUT_WRITE(SDSS, LOW);

Marlin/src/HAL/DUE/MarlinSPI.h

@@ -0,0 +1,26 @@
+/**
+ * Marlin 3D Printer Firmware
+ * Copyright (c) 2021 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
+ *
+ * Based on Sprinter and grbl.
+ * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ *
+ */
+#pragma once
+
+#include <SPI.h>
+
+using MarlinSPI = SPIClass;

Marlin/src/HAL/DUE/Tone.cpp

@@ -38,17 +38,17 @@ volatile static int32_t toggles;
 void tone(const pin_t _pin, const unsigned int frequency, const unsigned long duration) {
   tone_pin = _pin;
   toggles = 2 * frequency * duration / 1000;
-  HAL_timer_start(TONE_TIMER_NUM, 2 * frequency);
+  HAL_timer_start(MF_TIMER_TONE, 2 * frequency);
 }
 
 void noTone(const pin_t _pin) {
-  HAL_timer_disable_interrupt(TONE_TIMER_NUM);
+  HAL_timer_disable_interrupt(MF_TIMER_TONE);
   extDigitalWrite(_pin, LOW);
 }
 
 HAL_TONE_TIMER_ISR() {
   static uint8_t pin_state = 0;
-  HAL_timer_isr_prologue(TONE_TIMER_NUM);
+  HAL_timer_isr_prologue(MF_TIMER_TONE);
 
   if (toggles) {
     toggles--;

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

@@ -20,7 +20,6 @@
  *
  */
 
-
 /**
  * Based on u8g_com_msp430_hw_spi.c
  *
@@ -60,7 +59,7 @@
 
 #if HAS_MARLINUI_U8GLIB
 
-#include <U8glib.h>
+#include <U8glib-HAL.h>
 
 #include "../../../MarlinCore.h"
 

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

@@ -57,12 +57,12 @@
 
 #include "../../../inc/MarlinConfigPre.h"
 
-#if ENABLED(U8GLIB_ST7920)
+#if IS_U8GLIB_ST7920
 
 #include "../../../inc/MarlinConfig.h"
 #include "../../shared/Delay.h"
 
-#include <U8glib.h>
+#include <U8glib-HAL.h>
 
 #include "u8g_com_HAL_DUE_sw_spi_shared.h"
 
@@ -182,5 +182,5 @@ uint8_t u8g_com_HAL_DUE_ST7920_sw_spi_fn(u8g_t *u8g, uint8_t msg, uint8_t arg_va
   }
 #endif // LIGHTWEIGHT_UI
 
-#endif // U8GLIB_ST7920
+#endif // IS_U8GLIB_ST7920
 #endif // ARDUINO_ARCH_SAM

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

@@ -57,14 +57,14 @@
 
 #include "../../../inc/MarlinConfigPre.h"
 
-#if HAS_MARLINUI_U8GLIB && DISABLED(U8GLIB_ST7920)
+#if HAS_MARLINUI_U8GLIB && !IS_U8GLIB_ST7920
 
 #include "u8g_com_HAL_DUE_sw_spi_shared.h"
 
 #include "../../shared/Marduino.h"
 #include "../../shared/Delay.h"
 
-#include <U8glib.h>
+#include <U8glib-HAL.h>
 
 #if ENABLED(FYSETC_MINI_12864)
   #define SPISEND_SW_DUE u8g_spiSend_sw_DUE_mode_3
@@ -141,5 +141,5 @@ uint8_t u8g_com_HAL_DUE_sw_spi_fn(u8g_t *u8g, uint8_t msg, uint8_t arg_val, void
   return 1;
 }
 
-#endif // HAS_MARLINUI_U8GLIB && !U8GLIB_ST7920
+#endif // HAS_MARLINUI_U8GLIB && !IS_U8GLIB_ST7920
 #endif // ARDUINO_ARCH_SAM

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

@@ -62,7 +62,7 @@
 #include "../../../inc/MarlinConfig.h"
 #include "../../shared/Delay.h"
 
-#include <U8glib.h>
+#include <U8glib-HAL.h>
 
 #include "u8g_com_HAL_DUE_sw_spi_shared.h"
 

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

@@ -23,7 +23,7 @@
 
 #include "../../../inc/MarlinConfigPre.h"
 #include "../../shared/Marduino.h"
-#include <U8glib.h>
+#include <U8glib-HAL.h>
 
 void u8g_SetPIOutput_DUE(u8g_t *u8g, uint8_t pin_index);
 void u8g_SetPILevel_DUE(u8g_t *u8g, uint8_t pin_index, uint8_t level);

Marlin/src/HAL/DUE/eeprom_flash.cpp

@@ -200,9 +200,9 @@ static bool ee_PageWrite(uint16_t page, const void *data) {
     pageContents[i] = (((uint32_t*)data)[i]) | (~(pageContents[i] ^ ((uint32_t*)data)[i]));
 
   DEBUG_ECHO_START();
-  DEBUG_ECHOLNPAIR("EEPROM PageWrite   ", page);
-  DEBUG_ECHOLNPAIR(" in FLASH address ", (uint32_t)addrflash);
-  DEBUG_ECHOLNPAIR(" base address     ", (uint32_t)getFlashStorage(0));
+  DEBUG_ECHOLNPGM("EEPROM PageWrite   ", page);
+  DEBUG_ECHOLNPGM(" in FLASH address ", (uint32_t)addrflash);
+  DEBUG_ECHOLNPGM(" base address     ", (uint32_t)getFlashStorage(0));
   DEBUG_FLUSH();
 
   // Get the page relative to the start of the EFC controller, and the EFC controller to use
@@ -246,7 +246,7 @@ static bool ee_PageWrite(uint16_t page, const void *data) {
     __enable_irq();
 
     DEBUG_ECHO_START();
-    DEBUG_ECHOLNPAIR("EEPROM Unlock failure for page ", page);
+    DEBUG_ECHOLNPGM("EEPROM Unlock failure for page ", page);
     return false;
   }
 
@@ -271,7 +271,7 @@ static bool ee_PageWrite(uint16_t page, const void *data) {
     __enable_irq();
 
     DEBUG_ECHO_START();
-    DEBUG_ECHOLNPAIR("EEPROM Write failure for page ", page);
+    DEBUG_ECHOLNPGM("EEPROM Write failure for page ", page);
 
     return false;
   }
@@ -287,7 +287,7 @@ static bool ee_PageWrite(uint16_t page, const void *data) {
 
     #ifdef EE_EMU_DEBUG
       DEBUG_ECHO_START();
-      DEBUG_ECHOLNPAIR("EEPROM Verify Write failure for page ", page);
+      DEBUG_ECHOLNPGM("EEPROM Verify Write failure for page ", page);
 
       ee_Dump( page, (uint32_t *)addrflash);
       ee_Dump(-page, data);
@@ -306,7 +306,7 @@ static bool ee_PageWrite(uint16_t page, const void *data) {
           }
         }
       }
-      DEBUG_ECHOLNPAIR("--> Differing bits: ", count);
+      DEBUG_ECHOLNPGM("--> Differing bits: ", count);
     #endif
 
     return false;
@@ -326,9 +326,9 @@ static bool ee_PageErase(uint16_t page) {
   uint32_t addrflash = uint32_t(getFlashStorage(page));
 
   DEBUG_ECHO_START();
-  DEBUG_ECHOLNPAIR("EEPROM PageErase  ", page);
-  DEBUG_ECHOLNPAIR(" in FLASH address ", (uint32_t)addrflash);
-  DEBUG_ECHOLNPAIR(" base address     ", (uint32_t)getFlashStorage(0));
+  DEBUG_ECHOLNPGM("EEPROM PageErase  ", page);
+  DEBUG_ECHOLNPGM(" in FLASH address ", (uint32_t)addrflash);
+  DEBUG_ECHOLNPGM(" base address     ", (uint32_t)getFlashStorage(0));
   DEBUG_FLUSH();
 
   // Get the page relative to the start of the EFC controller, and the EFC controller to use
@@ -371,7 +371,7 @@ static bool ee_PageErase(uint16_t page) {
     __enable_irq();
 
     DEBUG_ECHO_START();
-    DEBUG_ECHOLNPAIR("EEPROM Unlock failure for page ",page);
+    DEBUG_ECHOLNPGM("EEPROM Unlock failure for page ",page);
 
     return false;
   }
@@ -395,7 +395,7 @@ static bool ee_PageErase(uint16_t page) {
     __enable_irq();
 
     DEBUG_ECHO_START();
-    DEBUG_ECHOLNPAIR("EEPROM Erase failure for page ",page);
+    DEBUG_ECHOLNPGM("EEPROM Erase failure for page ",page);
 
     return false;
   }
@@ -411,7 +411,7 @@ static bool ee_PageErase(uint16_t page) {
   for (i = 0; i < PageSize >> 2; i++) {
     if (*aligned_src++ != 0xFFFFFFFF) {
       DEBUG_ECHO_START();
-      DEBUG_ECHOLNPAIR("EEPROM Verify Erase failure for page ",page);
+      DEBUG_ECHOLNPGM("EEPROM Verify Erase failure for page ",page);
       ee_Dump(page, (uint32_t *)addrflash);
       return false;
     }
@@ -922,7 +922,7 @@ static void ee_Init() {
   if (curGroup >= GroupCount) curGroup = 0;
 
   DEBUG_ECHO_START();
-  DEBUG_ECHOLNPAIR("EEPROM Current Group: ",curGroup);
+  DEBUG_ECHOLNPGM("EEPROM Current Group: ",curGroup);
   DEBUG_FLUSH();
 
   // Now, validate that all the other group pages are empty
@@ -932,7 +932,7 @@ static void ee_Init() {
     for (int page = 0; page < PagesPerGroup; page++) {
       if (!ee_IsPageClean(grp * PagesPerGroup + page)) {
         DEBUG_ECHO_START();
-        DEBUG_ECHOLNPAIR("EEPROM Page ", page, " not clean on group ", grp);
+        DEBUG_ECHOLNPGM("EEPROM Page ", page, " not clean on group ", grp);
         DEBUG_FLUSH();
         ee_PageErase(grp * PagesPerGroup + page);
       }
@@ -949,14 +949,14 @@ static void ee_Init() {
   }
 
   DEBUG_ECHO_START();
-  DEBUG_ECHOLNPAIR("EEPROM Active page: ", curPage);
+  DEBUG_ECHOLNPGM("EEPROM Active page: ", curPage);
   DEBUG_FLUSH();
 
   // Make sure the pages following the first clean one are also clean
   for (int page = curPage + 1; page < PagesPerGroup; page++) {
     if (!ee_IsPageClean(curGroup * PagesPerGroup + page)) {
       DEBUG_ECHO_START();
-      DEBUG_ECHOLNPAIR("EEPROM Page ", page, " not clean on active group ", curGroup);
+      DEBUG_ECHOLNPGM("EEPROM Page ", page, " not clean on active group ", curGroup);
       DEBUG_FLUSH();
       ee_Dump(curGroup * PagesPerGroup + page, getFlashStorage(curGroup * PagesPerGroup + page));
       ee_PageErase(curGroup * PagesPerGroup + page);

Marlin/src/HAL/DUE/pinsDebug.h

@@ -2,6 +2,9 @@
  * 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
@@ -64,6 +67,7 @@
 #define PRINT_PORT(p)
 #define PRINT_ARRAY_NAME(x) do{ sprintf_P(buffer, PSTR("%-" STRINGIFY(MAX_NAME_LENGTH) "s"), pin_array[x].name); SERIAL_ECHO(buffer); }while(0)
 #define PRINT_PIN(p) do{ sprintf_P(buffer, PSTR("%02d"), p); SERIAL_ECHO(buffer); }while(0)
+#define PRINT_PIN_ANALOG(p) do{ sprintf_P(buffer, PSTR(" (A%2d)  "), DIGITAL_PIN_TO_ANALOG_PIN(pin)); SERIAL_ECHO(buffer); }while(0)
 #define GET_ARRAY_PIN(p) pin_array[p].pin
 #define GET_ARRAY_IS_DIGITAL(p) pin_array[p].is_digital
 #define VALID_PIN(pin) (pin >= 0 && pin < (int8_t)NUMBER_PINS_TOTAL ? 1 : 0)
@@ -86,7 +90,7 @@ bool GET_PINMODE(int8_t pin) {  // 1: output, 0: input
 void pwm_details(int32_t pin) {
   if (pwm_status(pin)) {
     uint32_t chan = g_APinDescription[pin].ulPWMChannel;
-    SERIAL_ECHOPAIR("PWM = ", PWM_INTERFACE->PWM_CH_NUM[chan].PWM_CDTY);
+    SERIAL_ECHOPGM("PWM = ", PWM_INTERFACE->PWM_CH_NUM[chan].PWM_CDTY);
   }
 }
 

Marlin/src/HAL/DUE/timers.cpp

@@ -42,7 +42,7 @@
 // Private Variables
 // ------------------------
 
-const tTimerConfig TimerConfig [NUM_HARDWARE_TIMERS] = {
+const tTimerConfig timer_config[NUM_HARDWARE_TIMERS] = {
   { TC0, 0, TC0_IRQn,  3}, // 0 - [servo timer5]
   { TC0, 1, TC1_IRQn,  0}, // 1
   { TC0, 2, TC2_IRQn,  2}, // 2 - stepper
@@ -66,9 +66,9 @@ const tTimerConfig TimerConfig [NUM_HARDWARE_TIMERS] = {
 */
 
 void HAL_timer_start(const uint8_t timer_num, const uint32_t frequency) {
-  Tc *tc = TimerConfig[timer_num].pTimerRegs;
-  IRQn_Type irq = TimerConfig[timer_num].IRQ_Id;
-  uint32_t channel = TimerConfig[timer_num].channel;
+  Tc *tc = timer_config[timer_num].pTimerRegs;
+  IRQn_Type irq = timer_config[timer_num].IRQ_Id;
+  uint32_t channel = timer_config[timer_num].channel;
 
   // Disable interrupt, just in case it was already enabled
   NVIC_DisableIRQ(irq);
@@ -86,7 +86,7 @@ void HAL_timer_start(const uint8_t timer_num, const uint32_t frequency) {
 
   pmc_set_writeprotect(false);
   pmc_enable_periph_clk((uint32_t)irq);
-  NVIC_SetPriority(irq, TimerConfig [timer_num].priority);
+  NVIC_SetPriority(irq, timer_config[timer_num].priority);
 
   // wave mode, reset counter on match with RC,
   TC_Configure(tc, channel, TC_CMR_WAVE | TC_CMR_WAVSEL_UP_RC | TC_CMR_TCCLKS_TIMER_CLOCK1);
@@ -105,12 +105,12 @@ void HAL_timer_start(const uint8_t timer_num, const uint32_t frequency) {
 }
 
 void HAL_timer_enable_interrupt(const uint8_t timer_num) {
-  IRQn_Type irq = TimerConfig[timer_num].IRQ_Id;
+  IRQn_Type irq = timer_config[timer_num].IRQ_Id;
   NVIC_EnableIRQ(irq);
 }
 
 void HAL_timer_disable_interrupt(const uint8_t timer_num) {
-  IRQn_Type irq = TimerConfig[timer_num].IRQ_Id;
+  IRQn_Type irq = timer_config[timer_num].IRQ_Id;
   NVIC_DisableIRQ(irq);
 
   // We NEED memory barriers to ensure Interrupts are actually disabled!
@@ -125,7 +125,7 @@ static bool NVIC_GetEnabledIRQ(IRQn_Type IRQn) {
 }
 
 bool HAL_timer_interrupt_enabled(const uint8_t timer_num) {
-  IRQn_Type irq = TimerConfig[timer_num].IRQ_Id;
+  IRQn_Type irq = timer_config[timer_num].IRQ_Id;
   return NVIC_GetEnabledIRQ(irq);
 }
 

Marlin/src/HAL/DUE/timers.h

@@ -37,35 +37,35 @@ typedef uint32_t hal_timer_t;
 
 #define HAL_TIMER_RATE         ((F_CPU) / 2)    // frequency of timers peripherals
 
-#ifndef STEP_TIMER_NUM
-  #define STEP_TIMER_NUM        2  // Timer Index for Stepper
+#ifndef MF_TIMER_STEP
+  #define MF_TIMER_STEP         2  // Timer Index for Stepper
 #endif
-#ifndef PULSE_TIMER_NUM
-  #define PULSE_TIMER_NUM       STEP_TIMER_NUM
+#ifndef MF_TIMER_PULSE
+  #define MF_TIMER_PULSE        MF_TIMER_STEP
 #endif
-#ifndef TEMP_TIMER_NUM
-  #define TEMP_TIMER_NUM        4  // Timer Index for Temperature
+#ifndef MF_TIMER_TEMP
+  #define MF_TIMER_TEMP         4  // Timer Index for Temperature
 #endif
-#ifndef TONE_TIMER_NUM
-  #define TONE_TIMER_NUM        6  // index of timer to use for beeper tones
+#ifndef MF_TIMER_TONE
+  #define MF_TIMER_TONE         6  // index of timer to use for beeper tones
 #endif
 
 #define TEMP_TIMER_FREQUENCY   1000 // temperature interrupt frequency
 
-#define STEPPER_TIMER_RATE     HAL_TIMER_RATE   // frequency of stepper timer (HAL_TIMER_RATE / STEPPER_TIMER_PRESCALE)
-#define STEPPER_TIMER_TICKS_PER_US ((STEPPER_TIMER_RATE) / 1000000) // stepper timer ticks per µs
-#define STEPPER_TIMER_PRESCALE (CYCLES_PER_MICROSECOND / STEPPER_TIMER_TICKS_PER_US)
+#define STEPPER_TIMER_RATE          HAL_TIMER_RATE                                        // frequency of stepper timer (HAL_TIMER_RATE / STEPPER_TIMER_PRESCALE)
+#define STEPPER_TIMER_TICKS_PER_US  ((STEPPER_TIMER_RATE) / 1000000)                      // stepper timer ticks per µs
+#define STEPPER_TIMER_PRESCALE      (CYCLES_PER_MICROSECOND / STEPPER_TIMER_TICKS_PER_US)
 
-#define PULSE_TIMER_RATE       STEPPER_TIMER_RATE   // frequency of pulse timer
-#define PULSE_TIMER_PRESCALE   STEPPER_TIMER_PRESCALE
-#define PULSE_TIMER_TICKS_PER_US STEPPER_TIMER_TICKS_PER_US
+#define PULSE_TIMER_RATE            STEPPER_TIMER_RATE                                    // frequency of pulse timer
+#define PULSE_TIMER_PRESCALE        STEPPER_TIMER_PRESCALE
+#define PULSE_TIMER_TICKS_PER_US    STEPPER_TIMER_TICKS_PER_US
 
-#define ENABLE_STEPPER_DRIVER_INTERRUPT() HAL_timer_enable_interrupt(STEP_TIMER_NUM)
-#define DISABLE_STEPPER_DRIVER_INTERRUPT()  HAL_timer_disable_interrupt(STEP_TIMER_NUM)
-#define STEPPER_ISR_ENABLED() HAL_timer_interrupt_enabled(STEP_TIMER_NUM)
+#define ENABLE_STEPPER_DRIVER_INTERRUPT() HAL_timer_enable_interrupt(MF_TIMER_STEP)
+#define DISABLE_STEPPER_DRIVER_INTERRUPT()  HAL_timer_disable_interrupt(MF_TIMER_STEP)
+#define STEPPER_ISR_ENABLED() HAL_timer_interrupt_enabled(MF_TIMER_STEP)
 
-#define ENABLE_TEMPERATURE_INTERRUPT()  HAL_timer_enable_interrupt(TEMP_TIMER_NUM)
-#define DISABLE_TEMPERATURE_INTERRUPT() HAL_timer_disable_interrupt(TEMP_TIMER_NUM)
+#define ENABLE_TEMPERATURE_INTERRUPT()  HAL_timer_enable_interrupt(MF_TIMER_TEMP)
+#define DISABLE_TEMPERATURE_INTERRUPT() HAL_timer_disable_interrupt(MF_TIMER_TEMP)
 
 #ifndef HAL_STEP_TIMER_ISR
   #define HAL_STEP_TIMER_ISR() void TC2_Handler()
@@ -92,7 +92,7 @@ typedef struct {
 // Public Variables
 // ------------------------
 
-extern const tTimerConfig TimerConfig[];
+extern const tTimerConfig timer_config[];
 
 // ------------------------
 // Public functions
@@ -101,17 +101,17 @@ extern const tTimerConfig TimerConfig[];
 void HAL_timer_start(const uint8_t timer_num, const uint32_t frequency);
 
 FORCE_INLINE static void HAL_timer_set_compare(const uint8_t timer_num, const hal_timer_t compare) {
-  const tTimerConfig * const pConfig = &TimerConfig[timer_num];
+  const tTimerConfig * const pConfig = &timer_config[timer_num];
   pConfig->pTimerRegs->TC_CHANNEL[pConfig->channel].TC_RC = compare;
 }
 
 FORCE_INLINE static hal_timer_t HAL_timer_get_compare(const uint8_t timer_num) {
-  const tTimerConfig * const pConfig = &TimerConfig[timer_num];
+  const tTimerConfig * const pConfig = &timer_config[timer_num];
   return pConfig->pTimerRegs->TC_CHANNEL[pConfig->channel].TC_RC;
 }
 
 FORCE_INLINE static hal_timer_t HAL_timer_get_count(const uint8_t timer_num) {
-  const tTimerConfig * const pConfig = &TimerConfig[timer_num];
+  const tTimerConfig * const pConfig = &timer_config[timer_num];
   return pConfig->pTimerRegs->TC_CHANNEL[pConfig->channel].TC_CV;
 }
 
@@ -120,9 +120,9 @@ void HAL_timer_disable_interrupt(const uint8_t timer_num);
 bool HAL_timer_interrupt_enabled(const uint8_t timer_num);
 
 FORCE_INLINE static void HAL_timer_isr_prologue(const uint8_t timer_num) {
-  const tTimerConfig * const pConfig = &TimerConfig[timer_num];
+  const tTimerConfig * const pConfig = &timer_config[timer_num];
   // Reading the status register clears the interrupt flag
   pConfig->pTimerRegs->TC_CHANNEL[pConfig->channel].TC_SR;
 }
 
-#define HAL_timer_isr_epilogue(TIMER_NUM)
+#define HAL_timer_isr_epilogue(T)

Marlin/src/HAL/DUE/upload_extra_script.py

@@ -4,15 +4,16 @@
 #  Windows: bossac.exe
 #  Other: leave unchanged
 #
+import pioutil
+if pioutil.is_pio_build():
+	import platform
+	current_OS = platform.system()
 
-import platform
-current_OS = platform.system()
+	if current_OS == 'Windows':
 
-if current_OS == 'Windows':
+		Import("env")
 
-	Import("env")
-
-	# Use bossac.exe on Windows
-	env.Replace(
-	    UPLOADCMD="bossac --info --unlock --write --verify --reset --erase -U false --boot $SOURCE"
-	)
+		# Use bossac.exe on Windows
+		env.Replace(
+			UPLOADCMD="bossac --info --unlock --write --verify --reset --erase -U false --boot $SOURCE"
+		)

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

@@ -71,7 +71,7 @@
 /* ------------------------------------------------------------------------ */
 
 /**
- * \page arduino_due_x_board_info "Arduino Due/X - Board informations"
+ * \page arduino_due_x_board_info "Arduino Due/X - Board information"
  * This page lists several definition related to the board description.
  *
  */

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

@@ -74,7 +74,7 @@
 #define   SD_MMC_REMOVING      2
 
 
-//---- CONTROL FONCTIONS ----
+//---- CONTROL FUNCTIONS ----
 //!
 //! @brief This function initializes the hw/sw resources required to drive the SD_MMC_SPI.
 //!/
@@ -134,7 +134,7 @@ extern bool           sd_mmc_spi_wr_protect(void);
 extern bool           sd_mmc_spi_removal(void);
 
 
-//---- ACCESS DATA FONCTIONS ----
+//---- ACCESS DATA FUNCTIONS ----
 
 #if ACCESS_USB == true
 // Standard functions for open in read/write mode the device

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

@@ -90,7 +90,7 @@ typedef struct {
 	//! This buffer must be word align for DATA IN phase (use prefix COMPILER_WORD_ALIGNED for buffer)
 	uint8_t *payload;
 
-	//! Size of buffer to send or fill, and content the number of byte transfered
+	//! Size of buffer to send or fill, and content the number of byte transferred
 	uint16_t payload_size;
 
 	//! Callback called after reception of ZLP from setup request
@@ -132,10 +132,10 @@ typedef void (*udd_callback_halt_cleared_t)(void);
  *
  * \param status     UDD_EP_TRANSFER_OK, if transfer is complete
  * \param status     UDD_EP_TRANSFER_ABORT, if transfer is aborted
- * \param n          number of data transfered
+ * \param n          number of data transferred
  */
 typedef void (*udd_callback_trans_t) (udd_ep_status_t status,
-		iram_size_t nb_transfered, udd_ep_id_t ep);
+		iram_size_t nb_transferred, udd_ep_id_t ep);
 
 /**
  * \brief Authorizes the VBUS event
@@ -303,7 +303,7 @@ bool udd_ep_wait_stall_clear(udd_ep_id_t ep,
  * The driver uses a specific DMA USB to transfer data
  * from internal RAM to endpoint, if this one is available.
  * When the transfer is finished or aborted (stall, reset, ...), the \a callback is called.
- * The \a callback returns the transfer status and eventually the number of byte transfered.
+ * The \a callback returns the transfer status and eventually the number of byte transferred.
  * Note: The control endpoint is not authorized.
  *
  * \param ep            The ID of the endpoint to use

Marlin/src/HAL/DUE/usb/udi_cdc.c

@@ -162,7 +162,7 @@ static void udi_cdc_ctrl_state_notify(uint8_t port, udd_ep_id_t ep);
  *
  * \param status     UDD_EP_TRANSFER_OK, if transfer finished
  * \param status     UDD_EP_TRANSFER_ABORT, if transfer aborted
- * \param n          number of data transfered
+ * \param n          number of data transferred
  */
 static void udi_cdc_serial_state_msg_sent(udd_ep_status_t status, iram_size_t n, udd_ep_id_t ep);
 
@@ -200,7 +200,7 @@ static void udi_cdc_data_received(udd_ep_status_t status, iram_size_t n, udd_ep_
  *
  * \param status     UDD_EP_TRANSFER_OK, if transfer finished
  * \param status     UDD_EP_TRANSFER_ABORT, if transfer aborted
- * \param n          number of data transfered
+ * \param n          number of data transferred
  */
 static void udi_cdc_data_sent(udd_ep_status_t status, iram_size_t n, udd_ep_id_t ep);
 

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

@@ -106,7 +106,7 @@ extern "C" {
  */
 //@{
 #  if UDI_CDC_PORT_NB > 2
-#    error USBB, UDP, UDPHS and UOTGHS interfaces have not enought endpoints.
+#    error USBB, UDP, UDPHS and UOTGHS interfaces have not enough endpoints.
 #  endif
 #define  UDI_CDC_DATA_EP_IN_0          (1 | USB_EP_DIR_IN)  // TX
 #define  UDI_CDC_DATA_EP_OUT_0         (2 | USB_EP_DIR_OUT) // RX

Marlin/src/HAL/DUE/usb/udi_msc.c

@@ -173,7 +173,7 @@ static void udi_msc_cbw_wait(void);
  *
  * \param status       UDD_EP_TRANSFER_OK, if transfer is finished
  * \param status       UDD_EP_TRANSFER_ABORT, if transfer is aborted
- * \param nb_received  number of data transfered
+ * \param nb_received  number of data transferred
  */
 static void udi_msc_cbw_received(udd_ep_status_t status,
     iram_size_t nb_received, udd_ep_id_t ep);
@@ -211,7 +211,7 @@ static void udi_msc_data_send(uint8_t * buffer, uint8_t buf_size);
  *
  * \param status     UDD_EP_TRANSFER_OK, if transfer finish
  * \param status     UDD_EP_TRANSFER_ABORT, if transfer aborted
- * \param nb_sent    number of data transfered
+ * \param nb_sent    number of data transferred
  */
 static void udi_msc_data_sent(udd_ep_status_t status, iram_size_t nb_sent,
     udd_ep_id_t ep);
@@ -244,7 +244,7 @@ void udi_msc_csw_send(void);
  *
  * \param status     UDD_EP_TRANSFER_OK, if transfer is finished
  * \param status     UDD_EP_TRANSFER_ABORT, if transfer is aborted
- * \param nb_sent    number of data transfered
+ * \param nb_sent    number of data transferred
  */
 static void udi_msc_csw_sent(udd_ep_status_t status, iram_size_t nb_sent,
     udd_ep_id_t ep);
@@ -463,7 +463,7 @@ uint8_t udi_msc_getsetting(void)
 static void udi_msc_cbw_invalid(void)
 {
   if (!udi_msc_b_cbw_invalid)
-    return; // Don't re-stall endpoint if error reseted by setup
+    return; // Don't re-stall endpoint if error reset by setup
   udd_ep_set_halt(UDI_MSC_EP_OUT);
   // If stall cleared then re-stall it. Only Setup MSC Reset can clear it
   udd_ep_wait_stall_clear(UDI_MSC_EP_OUT, udi_msc_cbw_invalid);
@@ -472,7 +472,7 @@ static void udi_msc_cbw_invalid(void)
 static void udi_msc_csw_invalid(void)
 {
   if (!udi_msc_b_cbw_invalid)
-    return; // Don't re-stall endpoint if error reseted by setup
+    return; // Don't re-stall endpoint if error reset by setup
   udd_ep_set_halt(UDI_MSC_EP_IN);
   // If stall cleared then re-stall it. Only Setup MSC Reset can clear it
   udd_ep_wait_stall_clear(UDI_MSC_EP_IN, udi_msc_csw_invalid);

Marlin/src/HAL/DUE/usb/uotghs_device_due.c

@@ -325,7 +325,7 @@ static void udd_sleep_mode(bool b_idle)
 /**
  * \name Control endpoint low level management routine.
  *
- * This function performs control endpoint mangement.
+ * This function performs control endpoint management.
  * It handle the SETUP/DATA/HANDSHAKE phases of a control transaction.
  */
 //@{
@@ -397,9 +397,9 @@ static void udd_ctrl_endofrequest(void);
 /**
  * \brief Main interrupt routine for control endpoint
  *
- * This switchs control endpoint events to correct sub function.
+ * This switches control endpoint events to correct sub function.
  *
- * \return \c 1 if an event about control endpoint is occured, otherwise \c 0.
+ * \return \c 1 if an event about control endpoint is occurred, otherwise \c 0.
  */
 static bool udd_ctrl_interrupt(void);
 
@@ -410,7 +410,7 @@ static bool udd_ctrl_interrupt(void);
  * \name Management of bulk/interrupt/isochronous endpoints
  *
  * The UDD manages the data transfer on endpoints:
- * - Start data tranfer on endpoint with USB Device DMA
+ * - Start data transfer on endpoint with USB Device DMA
  * - Send a ZLP packet if requested
  * - Call callback registered to signal end of transfer
  * The transfer abort and stall feature are supported.
@@ -431,7 +431,7 @@ typedef struct {
 	uint8_t *buf;
 	//! Size of buffer to send or fill
 	iram_size_t buf_size;
-	//!< Size of data transfered
+	//!< Size of data transferred
 	iram_size_t buf_cnt;
 	//!< Size of data loaded (or prepared for DMA) last time
 	iram_size_t buf_load;
@@ -486,7 +486,7 @@ static void udd_ep_finish_job(udd_ep_job_t * ptr_job, bool b_abort, uint8_t ep_n
 
 #ifdef UDD_EP_DMA_SUPPORTED
 	/**
-	 * \brief Start the next transfer if necessary or complet the job associated.
+	 * \brief Start the next transfer if necessary or complete the job associated.
 	 *
 	 * \param ep endpoint number without direction flag
 	 */
@@ -496,9 +496,9 @@ static void udd_ep_finish_job(udd_ep_job_t * ptr_job, bool b_abort, uint8_t ep_n
 /**
  * \brief Main interrupt routine for bulk/interrupt/isochronous endpoints
  *
- * This switchs endpoint events to correct sub function.
+ * This switches endpoint events to correct sub function.
  *
- * \return \c 1 if an event about bulk/interrupt/isochronous endpoints has occured, otherwise \c 0.
+ * \return \c 1 if an event about bulk/interrupt/isochronous endpoints has occurred, otherwise \c 0.
  */
 static bool udd_ep_interrupt(void);
 
@@ -520,7 +520,7 @@ static bool udd_ep_interrupt(void);
  *
  * Note:
  * Here, the global interrupt mask is not clear when an USB interrupt is enabled
- * because this one can not be occured during the USB ISR (=during INTX is masked).
+ * because this one can not be occurred during the USB ISR (=during INTX is masked).
  * See Technical reference $3.8.3 Masking interrupt requests in peripheral modules.
  */
 #ifdef UHD_ENABLE
@@ -787,7 +787,7 @@ void udd_attach(void)
 	udd_sleep_mode(true);
 	otg_unfreeze_clock();
 
-	// This section of clock check can be improved with a chek of
+	// This section of clock check can be improved with a check of
 	// USB clock source via sysclk()
 	// Check USB clock because the source can be a PLL
 	while (!Is_otg_clock_usable());
@@ -803,7 +803,7 @@ void udd_attach(void)
 #ifdef USB_DEVICE_HS_SUPPORT
 	udd_enable_msof_interrupt();
 #endif
-	// Reset following interupts flag
+	// Reset following interrupts flag
 	udd_ack_reset();
 	udd_ack_sof();
 	udd_ack_msof();
@@ -902,7 +902,7 @@ bool udd_ep_alloc(udd_ep_id_t ep, uint8_t bmAttributes,
 	}
 	dbg_print("alloc(%x, %d) ", ep, MaxEndpointSize);
 
-	// Bank choise
+	// Bank choice
 	switch (bmAttributes & USB_EP_TYPE_MASK) {
 	case USB_EP_TYPE_ISOCHRONOUS:
 		nb_bank = UDD_ISOCHRONOUS_NB_BANK(ep);
@@ -1228,7 +1228,7 @@ bool udd_ep_wait_stall_clear(udd_ep_id_t ep,
 
 	if (Is_udd_endpoint_stall_requested(ep)
 			|| ptr_job->stall_requested) {
-		// Endpoint halted then registes the callback
+		// Endpoint halted then registers the callback
 		ptr_job->busy = true;
 		ptr_job->call_nohalt = callback;
 	} else {
@@ -1386,7 +1386,7 @@ static void udd_ctrl_setup_received(void)
 
 	// Decode setup request
 	if (udc_process_setup() == false) {
-		// Setup request unknow then stall it
+		// Setup request unknown then stall it
 		udd_ctrl_stall_data();
 		udd_ack_setup_received(0);
 		return;
@@ -1447,7 +1447,7 @@ static void udd_ctrl_in_sent(void)
 		udd_ctrl_prev_payload_buf_cnt += udd_ctrl_payload_buf_cnt;
 		if ((udd_g_ctrlreq.req.wLength == udd_ctrl_prev_payload_buf_cnt)
 					|| b_shortpacket) {
-			// All data requested are transfered or a short packet has been sent
+			// All data requested are transferred or a short packet has been sent
 			// then it is the end of data phase.
 			// Generate an OUT ZLP for handshake phase.
 			udd_ctrl_send_zlp_out();
@@ -1516,7 +1516,7 @@ static void udd_ctrl_out_received(void)
 			// End of SETUP request:
 			// - Data IN Phase aborted,
 			// - or last Data IN Phase hidden by ZLP OUT sending quiclky,
-			// - or ZLP OUT received normaly.
+			// - or ZLP OUT received normally.
 			udd_ctrl_endofrequest();
 		} else {
 			// Protocol error during SETUP request
@@ -1544,7 +1544,7 @@ static void udd_ctrl_out_received(void)
 					(udd_ctrl_prev_payload_buf_cnt +
 							udd_ctrl_payload_buf_cnt))) {
 		// End of reception because it is a short packet
-		// Before send ZLP, call intermediat calback
+		// Before send ZLP, call intermediate callback
 		// in case of data receiv generate a stall
 		udd_g_ctrlreq.payload_size = udd_ctrl_payload_buf_cnt;
 		if (NULL != udd_g_ctrlreq.over_under_run) {
@@ -1565,7 +1565,7 @@ static void udd_ctrl_out_received(void)
 	if (udd_g_ctrlreq.payload_size == udd_ctrl_payload_buf_cnt) {
 		// Overrun then request a new payload buffer
 		if (!udd_g_ctrlreq.over_under_run) {
-			// No callback availabled to request a new payload buffer
+			// No callback available to request a new payload buffer
 			udd_ctrl_stall_data();
 			// Ack reception of OUT to replace NAK by a STALL
 			udd_ack_out_received(0);
@@ -1805,7 +1805,7 @@ static void udd_ep_trans_done(udd_ep_id_t ep)
 			// transfer size of UDD_ENDPOINT_MAX_TRANS Bytes
 			next_trans = UDD_ENDPOINT_MAX_TRANS;
 
-			// Set 0 to tranfer the maximum
+			// Set 0 to transfer the maximum
 			udd_dma_ctrl = UOTGHS_DEVDMACONTROL_BUFF_LENGTH(0);
 		} else {
 			udd_dma_ctrl = UOTGHS_DEVDMACONTROL_BUFF_LENGTH(next_trans);
@@ -1850,7 +1850,7 @@ static void udd_ep_trans_done(udd_ep_id_t ep)
 		}
 		cpu_irq_restore(flags);
 
-		// Here a ZLP has been recieved
+		// Here a ZLP has been received
 		// and the DMA transfer must be not started.
 		// It is the end of transfer
 		ptr_job->buf_size = ptr_job->buf_cnt;
@@ -1991,13 +1991,13 @@ static bool udd_ep_interrupt(void)
 			}
 			dbg_print("dma%x: ", ep);
 			udd_disable_endpoint_dma_interrupt(ep);
-			// Save number of data no transfered
+			// Save number of data no transferred
 			nb_remaining = (udd_endpoint_dma_get_status(ep) &
 					UOTGHS_DEVDMASTATUS_BUFF_COUNT_Msk)
 					>> UOTGHS_DEVDMASTATUS_BUFF_COUNT_Pos;
 			if (nb_remaining) {
 				// Transfer no complete (short packet or ZLP) then:
-				// Update number of data transfered
+				// Update number of data transferred
 				ptr_job->buf_cnt -= nb_remaining;
 				// Set transfer complete to stop the transfer
 				ptr_job->buf_size = ptr_job->buf_cnt;
@@ -2056,7 +2056,7 @@ static bool udd_ep_interrupt(void)
 				udd_disable_endpoint_interrupt(ep);
 
 				Assert(ptr_job->stall_requested);
-				// A stall has been requested during backgound transfer
+				// A stall has been requested during background transfer
 				ptr_job->stall_requested = false;
 				udd_disable_endpoint_bank_autoswitch(ep);
 				udd_enable_stall_handshake(ep);

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

@@ -130,7 +130,7 @@ struct usb_msc_cbw {
 struct usb_msc_csw {
 	le32_t dCSWSignature;	//!< Must contain 'USBS'
 	le32_t dCSWTag;	//!< Same as dCBWTag
-	le32_t dCSWDataResidue;	//!< Number of bytes not transfered
+	le32_t dCSWDataResidue;	//!< Number of bytes not transferred
 	uint8_t bCSWStatus;	//!< Status code
 };
 

Marlin/src/HAL/ESP32/HAL.cpp

@@ -28,6 +28,10 @@
 #include <esp_adc_cal.h>
 #include <HardwareSerial.h>
 
+#if ENABLED(USE_ESP32_TASK_WDT)
+  #include <esp_task_wdt.h>
+#endif
+
 #if ENABLED(WIFISUPPORT)
   #include <ESPAsyncWebServer.h>
   #include "wifi.h"
@@ -90,8 +94,24 @@ volatile int numPWMUsed = 0,
 
 #endif
 
-void HAL_init_board() {
+#if ENABLED(USE_ESP32_EXIO)
+  HardwareSerial YSerial2(2);
 
+  void Write_EXIO(uint8_t IO, uint8_t v) {
+    if (ISRS_ENABLED()) {
+      DISABLE_ISRS();
+      YSerial2.write(0x80 | (((char)v) << 5) | (IO - 100));
+      ENABLE_ISRS();
+    }
+    else
+      YSerial2.write(0x80 | (((char)v) << 5) | (IO - 100));
+  }
+#endif
+
+void HAL_init_board() {
+  #if ENABLED(USE_ESP32_TASK_WDT)
+    esp_task_wdt_init(10, true);
+  #endif
   #if ENABLED(ESP3D_WIFISUPPORT)
     esp3dlib.init();
   #elif ENABLED(WIFISUPPORT)
@@ -127,7 +147,11 @@ void HAL_init_board() {
   // Initialize the i2s peripheral only if the I2S stepper stream is enabled.
   // The following initialization is performed after Serial1 and Serial2 are defined as
   // their native pins might conflict with the i2s stream even when they are remapped.
-  TERN_(I2S_STEPPER_STREAM, i2s_init());
+  #if ENABLED(USE_ESP32_EXIO)
+    YSerial2.begin(460800 * 3, SERIAL_8N1, 16, 17);
+  #elif ENABLED(I2S_STEPPER_STREAM)
+    i2s_init();
+  #endif
 }
 
 void HAL_idletask() {
@@ -252,7 +276,7 @@ void analogWrite(pin_t pin, int value) {
     idx = numPWMUsed;
     pwmPins[idx] = pin;
     // Start timer on first use
-    if (idx == 0) HAL_timer_start(PWM_TIMER_NUM, PWM_TIMER_FREQUENCY);
+    if (idx == 0) HAL_timer_start(MF_TIMER_PWM, PWM_TIMER_FREQUENCY);
 
     ++numPWMUsed;
   }
@@ -263,7 +287,7 @@ void analogWrite(pin_t pin, int value) {
 
 // Handle PWM timer interrupt
 HAL_PWM_TIMER_ISR() {
-  HAL_timer_isr_prologue(PWM_TIMER_NUM);
+  HAL_timer_isr_prologue(MF_TIMER_PWM);
 
   static uint8_t count = 0;
 
@@ -277,7 +301,7 @@ HAL_PWM_TIMER_ISR() {
   // 128 for 7 Bit resolution
   count = (count + 1) & 0x7F;
 
-  HAL_timer_isr_epilogue(PWM_TIMER_NUM);
+  HAL_timer_isr_epilogue(MF_TIMER_PWM);
 }
 
 #endif // ARDUINO_ARCH_ESP32

Marlin/src/HAL/ESP32/HAL.h

@@ -105,16 +105,14 @@ void HAL_reboot();
 
 void _delay_ms(int delay);
 
+#pragma GCC diagnostic push
 #if GCC_VERSION <= 50000
-  #pragma GCC diagnostic push
   #pragma GCC diagnostic ignored "-Wunused-function"
 #endif
 
 int freeMemory();
 
-#if GCC_VERSION <= 50000
-  #pragma GCC diagnostic pop
-#endif
+#pragma GCC diagnostic pop
 
 void analogWrite(pin_t pin, int value);
 
@@ -131,6 +129,10 @@ void HAL_adc_init();
 
 void HAL_adc_start_conversion(const uint8_t adc_pin);
 
+// PWM
+inline void set_pwm_duty(const pin_t pin, const uint16_t v, const uint16_t=255, const bool=false) { analogWrite(pin, v); }
+
+// Pin Map
 #define GET_PIN_MAP_PIN(index) index
 #define GET_PIN_MAP_INDEX(pin) pin
 #define PARSED_PIN_INDEX(code, dval) parser.intval(code, dval)
@@ -142,6 +144,10 @@ void HAL_idletask();
 inline void HAL_init() {}
 void HAL_init_board();
 
+#if ENABLED(USE_ESP32_EXIO)
+  void Write_EXIO(uint8_t IO, uint8_t v);
+#endif
+
 //
 // Delay in cycles (used by DELAY_NS / DELAY_US)
 //

Marlin/src/HAL/ESP32/HAL_SPI.cpp

@@ -53,11 +53,9 @@ static SPISettings spiConfig;
 // ------------------------
 
 void spiBegin() {
-  #if !PIN_EXISTS(SD_SS)
-    #error "SD_SS_PIN not defined!"
+  #if ENABLED(SDSUPPORT) && PIN_EXISTS(SD_SS)
+    OUT_WRITE(SD_SS_PIN, HIGH);
   #endif
-
-  OUT_WRITE(SD_SS_PIN, HIGH);
 }
 
 void spiInit(uint8_t spiRate) {

Marlin/src/HAL/ESP32/MarlinSPI.h

@@ -0,0 +1,26 @@
+/**
+ * Marlin 3D Printer Firmware
+ * Copyright (c) 2021 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
+ *
+ * Based on Sprinter and grbl.
+ * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ *
+ */
+#pragma once
+
+#include <SPI.h>
+
+using MarlinSPI = SPIClass;

Marlin/src/HAL/ESP32/Tone.cpp

@@ -38,16 +38,16 @@ volatile static int32_t toggles;
 void tone(const pin_t _pin, const unsigned int frequency, const unsigned long duration) {
   tone_pin = _pin;
   toggles = 2 * frequency * duration / 1000;
-  HAL_timer_start(TONE_TIMER_NUM, 2 * frequency);
+  HAL_timer_start(MF_TIMER_TONE, 2 * frequency);
 }
 
 void noTone(const pin_t _pin) {
-  HAL_timer_disable_interrupt(TONE_TIMER_NUM);
+  HAL_timer_disable_interrupt(MF_TIMER_TONE);
   WRITE(_pin, LOW);
 }
 
 HAL_TONE_TIMER_ISR() {
-  HAL_timer_isr_prologue(TONE_TIMER_NUM);
+  HAL_timer_isr_prologue(MF_TIMER_TONE);
 
   if (toggles) {
     toggles--;

Marlin/src/HAL/ESP32/esp32.csv

@@ -0,0 +1,6 @@
+# Name,   Type, SubType, Offset,  Size, Flags
+nvs,      data, nvs,     0x9000,   0x5000,
+otadata,  data, ota,     0xe000,   0x2000,
+app0,     app,  ota_0,   0x10000,  0x180000,
+app1,     app,  ota_1,   0x190000, 0x180000,
+spiffs,   data, spiffs,  0x310000, 0xF0000,

Marlin/src/HAL/ESP32/fastio.h

@@ -40,13 +40,19 @@
 // Set pin as input with pullup mode
 #define _PULLUP(IO, v)          pinMode(IO, v ? INPUT_PULLUP : INPUT)
 
-// Read a pin wrapper
-#define READ(IO)                (IS_I2S_EXPANDER_PIN(IO) ? i2s_state(I2S_EXPANDER_PIN_INDEX(IO)) : digitalRead(IO))
+#if ENABLED(USE_ESP32_EXIO)
+  // Read a pin wrapper
+  #define READ(IO)                digitalRead(IO)
+  // Write to a pin wrapper
+  #define WRITE(IO, v)            (IO >= 100 ? Write_EXIO(IO, v) : digitalWrite(IO, v))
+#else
+  // Read a pin wrapper
+  #define READ(IO)                (IS_I2S_EXPANDER_PIN(IO) ? i2s_state(I2S_EXPANDER_PIN_INDEX(IO)) : digitalRead(IO))
+  // Write to a pin wrapper
+  #define WRITE(IO, v)            (IS_I2S_EXPANDER_PIN(IO) ? i2s_write(I2S_EXPANDER_PIN_INDEX(IO), v) : digitalWrite(IO, v))
+#endif
 
-// Write to a pin wrapper
-#define WRITE(IO, v)            (IS_I2S_EXPANDER_PIN(IO) ? i2s_write(I2S_EXPANDER_PIN_INDEX(IO), v) : digitalWrite(IO, v))
-
-// Set pin as input wrapper
+// Set pin as input wrapper (0x80 | (v << 5) | (IO - 100))
 #define SET_INPUT(IO)           _SET_INPUT(IO)
 
 // Set pin as input with pullup wrapper

Marlin/src/HAL/ESP32/i2s.cpp

@@ -23,6 +23,8 @@
 
 #include "../../inc/MarlinConfigPre.h"
 
+#if DISABLED(USE_ESP32_EXIO)
+
 #include "i2s.h"
 
 #include "../shared/Marduino.h"
@@ -62,12 +64,9 @@ uint32_t i2s_port_data = 0;
 #define I2S_EXIT_CRITICAL()   portEXIT_CRITICAL(&i2s_spinlock[i2s_num])
 
 static inline void gpio_matrix_out_check(uint32_t gpio, uint32_t signal_idx, bool out_inv, bool oen_inv) {
-  //if pin = -1, do not need to configure
-  if (gpio != -1) {
-    PIN_FUNC_SELECT(GPIO_PIN_MUX_REG[gpio], PIN_FUNC_GPIO);
-    gpio_set_direction((gpio_num_t)gpio, (gpio_mode_t)GPIO_MODE_DEF_OUTPUT);
-    gpio_matrix_out(gpio, signal_idx, out_inv, oen_inv);
-  }
+  PIN_FUNC_SELECT(GPIO_PIN_MUX_REG[gpio], PIN_FUNC_GPIO);
+  gpio_set_direction((gpio_num_t)gpio, (gpio_mode_t)GPIO_MODE_DEF_OUTPUT);
+  gpio_matrix_out(gpio, signal_idx, out_inv, oen_inv);
 }
 
 static esp_err_t i2s_reset_fifo(i2s_port_t i2s_num) {
@@ -254,13 +253,7 @@ int i2s_init() {
 
   I2S0.fifo_conf.dscr_en = 0;
 
-  I2S0.conf_chan.tx_chan_mod = (
-    #if ENABLED(I2S_STEPPER_SPLIT_STREAM)
-      4
-    #else
-      0
-    #endif
-  );
+  I2S0.conf_chan.tx_chan_mod = TERN(I2S_STEPPER_SPLIT_STREAM, 4, 0);
   I2S0.fifo_conf.tx_fifo_mod = 0;
   I2S0.conf.tx_mono = 0;
 
@@ -311,9 +304,16 @@ int i2s_init() {
   xTaskCreatePinnedToCore(stepperTask, "StepperTask", 10000, nullptr, 1, nullptr, CONFIG_ARDUINO_RUNNING_CORE); // run I2S stepper task on same core as rest of Marlin
 
   // Route the i2s pins to the appropriate GPIO
-  gpio_matrix_out_check(I2S_DATA, I2S0O_DATA_OUT23_IDX, 0, 0);
-  gpio_matrix_out_check(I2S_BCK, I2S0O_BCK_OUT_IDX, 0, 0);
-  gpio_matrix_out_check(I2S_WS, I2S0O_WS_OUT_IDX, 0, 0);
+  // If a pin is not defined, no need to configure
+  #if defined(I2S_DATA) && I2S_DATA >= 0
+    gpio_matrix_out_check(I2S_DATA, I2S0O_DATA_OUT23_IDX, 0, 0);
+  #endif
+  #if defined(I2S_BCK) && I2S_BCK >= 0
+    gpio_matrix_out_check(I2S_BCK, I2S0O_BCK_OUT_IDX, 0, 0);
+  #endif
+  #if defined(I2S_WS) && I2S_WS >= 0
+    gpio_matrix_out_check(I2S_WS, I2S0O_WS_OUT_IDX, 0, 0);
+  #endif
 
   // Start the I2S peripheral
   return i2s_start(I2S_NUM_0);
@@ -340,4 +340,5 @@ void i2s_push_sample() {
   dma.current[dma.rw_pos++] = i2s_port_data;
 }
 
+#endif // !USE_ESP32_EXIO
 #endif // ARDUINO_ARCH_ESP32

Marlin/src/HAL/ESP32/spi_pins.h

@@ -2,6 +2,9 @@
  * 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

Marlin/src/HAL/ESP32/timers.cpp

@@ -41,7 +41,7 @@
 
 static timg_dev_t *TG[2] = {&TIMERG0, &TIMERG1};
 
-const tTimerConfig TimerConfig [NUM_HARDWARE_TIMERS] = {
+const tTimerConfig timer_config[NUM_HARDWARE_TIMERS] = {
   { TIMER_GROUP_0, TIMER_0, STEPPER_TIMER_PRESCALE, stepTC_Handler }, // 0 - Stepper
   { TIMER_GROUP_0, TIMER_1,    TEMP_TIMER_PRESCALE, tempTC_Handler }, // 1 - Temperature
   { TIMER_GROUP_1, TIMER_0,     PWM_TIMER_PRESCALE, pwmTC_Handler  }, // 2 - PWM
@@ -53,7 +53,7 @@ const tTimerConfig TimerConfig [NUM_HARDWARE_TIMERS] = {
 // ------------------------
 
 void IRAM_ATTR timer_isr(void *para) {
-  const tTimerConfig& timer = TimerConfig[(int)para];
+  const tTimerConfig& timer = timer_config[(int)para];
 
   // Retrieve the interrupt status and the counter value
   // from the timer that reported the interrupt
@@ -82,7 +82,7 @@ void IRAM_ATTR timer_isr(void *para) {
  * @param frequency frequency of the timer
  */
 void HAL_timer_start(const uint8_t timer_num, uint32_t frequency) {
-  const tTimerConfig timer = TimerConfig[timer_num];
+  const tTimerConfig timer = timer_config[timer_num];
 
   timer_config_t config;
   config.divider     = timer.divider;
@@ -115,7 +115,7 @@ void HAL_timer_start(const uint8_t timer_num, uint32_t frequency) {
  * @param count     threshold at which the interrupt is triggered
  */
 void HAL_timer_set_compare(const uint8_t timer_num, hal_timer_t count) {
-  const tTimerConfig timer = TimerConfig[timer_num];
+  const tTimerConfig timer = timer_config[timer_num];
   timer_set_alarm_value(timer.group, timer.idx, count);
 }
 
@@ -125,7 +125,7 @@ void HAL_timer_set_compare(const uint8_t timer_num, hal_timer_t count) {
  * @return           the timer current threshold for the alarm to be triggered
  */
 hal_timer_t HAL_timer_get_compare(const uint8_t timer_num) {
-  const tTimerConfig timer = TimerConfig[timer_num];
+  const tTimerConfig timer = timer_config[timer_num];
 
   uint64_t alarm_value;
   timer_get_alarm_value(timer.group, timer.idx, &alarm_value);
@@ -139,7 +139,7 @@ hal_timer_t HAL_timer_get_compare(const uint8_t timer_num) {
  * @return           the current counter of the alarm
  */
 hal_timer_t HAL_timer_get_count(const uint8_t timer_num) {
-  const tTimerConfig timer = TimerConfig[timer_num];
+  const tTimerConfig timer = timer_config[timer_num];
   uint64_t counter_value;
   timer_get_counter_value(timer.group, timer.idx, &counter_value);
   return counter_value;
@@ -150,7 +150,7 @@ hal_timer_t HAL_timer_get_count(const uint8_t timer_num) {
  * @param timer_num timer number to enable interrupts on
  */
 void HAL_timer_enable_interrupt(const uint8_t timer_num) {
-  //const tTimerConfig timer = TimerConfig[timer_num];
+  //const tTimerConfig timer = timer_config[timer_num];
   //timer_enable_intr(timer.group, timer.idx);
 }
 
@@ -159,12 +159,12 @@ void HAL_timer_enable_interrupt(const uint8_t timer_num) {
  * @param timer_num timer number to disable interrupts on
  */
 void HAL_timer_disable_interrupt(const uint8_t timer_num) {
-  //const tTimerConfig timer = TimerConfig[timer_num];
+  //const tTimerConfig timer = timer_config[timer_num];
   //timer_disable_intr(timer.group, timer.idx);
 }
 
 bool HAL_timer_interrupt_enabled(const uint8_t timer_num) {
-  const tTimerConfig timer = TimerConfig[timer_num];
+  const tTimerConfig timer = timer_config[timer_num];
   return TG[timer.group]->int_ena.val | BIT(timer_num);
 }
 

Marlin/src/HAL/ESP32/timers.h

@@ -32,20 +32,20 @@
 typedef uint64_t hal_timer_t;
 #define HAL_TIMER_TYPE_MAX 0xFFFFFFFFFFFFFFFFULL
 
-#ifndef STEP_TIMER_NUM
-  #define STEP_TIMER_NUM        0  // Timer Index for Stepper
+#ifndef MF_TIMER_STEP
+  #define MF_TIMER_STEP         0  // Timer Index for Stepper
 #endif
-#ifndef PULSE_TIMER_NUM
-  #define PULSE_TIMER_NUM       STEP_TIMER_NUM
+#ifndef MF_TIMER_PULSE
+  #define MF_TIMER_PULSE        MF_TIMER_STEP
 #endif
-#ifndef TEMP_TIMER_NUM
-  #define TEMP_TIMER_NUM        1  // Timer Index for Temperature
+#ifndef MF_TIMER_TEMP
+  #define MF_TIMER_TEMP         1  // Timer Index for Temperature
 #endif
-#ifndef PWM_TIMER_NUM
-  #define PWM_TIMER_NUM         2  // index of timer to use for PWM outputs
+#ifndef MF_TIMER_PWM
+  #define MF_TIMER_PWM          2  // index of timer to use for PWM outputs
 #endif
-#ifndef TONE_TIMER_NUM
-  #define TONE_TIMER_NUM        3  // index of timer for beeper tones
+#ifndef MF_TIMER_TONE
+  #define MF_TIMER_TONE         3  // index of timer for beeper tones
 #endif
 
 #define HAL_TIMER_RATE APB_CLK_FREQ // frequency of timer peripherals
@@ -79,12 +79,12 @@ typedef uint64_t hal_timer_t;
 #define PULSE_TIMER_PRESCALE     STEPPER_TIMER_PRESCALE
 #define PULSE_TIMER_TICKS_PER_US STEPPER_TIMER_TICKS_PER_US
 
-#define ENABLE_STEPPER_DRIVER_INTERRUPT() HAL_timer_enable_interrupt(STEP_TIMER_NUM)
-#define DISABLE_STEPPER_DRIVER_INTERRUPT()  HAL_timer_disable_interrupt(STEP_TIMER_NUM)
-#define STEPPER_ISR_ENABLED() HAL_timer_interrupt_enabled(STEP_TIMER_NUM)
+#define ENABLE_STEPPER_DRIVER_INTERRUPT() HAL_timer_enable_interrupt(MF_TIMER_STEP)
+#define DISABLE_STEPPER_DRIVER_INTERRUPT()  HAL_timer_disable_interrupt(MF_TIMER_STEP)
+#define STEPPER_ISR_ENABLED() HAL_timer_interrupt_enabled(MF_TIMER_STEP)
 
-#define ENABLE_TEMPERATURE_INTERRUPT()  HAL_timer_enable_interrupt(TEMP_TIMER_NUM)
-#define DISABLE_TEMPERATURE_INTERRUPT() HAL_timer_disable_interrupt(TEMP_TIMER_NUM)
+#define ENABLE_TEMPERATURE_INTERRUPT()  HAL_timer_enable_interrupt(MF_TIMER_TEMP)
+#define DISABLE_TEMPERATURE_INTERRUPT() HAL_timer_disable_interrupt(MF_TIMER_TEMP)
 
 #ifndef HAL_TEMP_TIMER_ISR
   #define HAL_TEMP_TIMER_ISR() extern "C" void tempTC_Handler()
@@ -121,7 +121,7 @@ typedef struct {
 // Public Variables
 // ------------------------
 
-extern const tTimerConfig TimerConfig[];
+extern const tTimerConfig timer_config[];
 
 // ------------------------
 // Public functions
@@ -136,5 +136,5 @@ void HAL_timer_enable_interrupt(const uint8_t timer_num);
 void HAL_timer_disable_interrupt(const uint8_t timer_num);
 bool HAL_timer_interrupt_enabled(const uint8_t timer_num);
 
-#define HAL_timer_isr_prologue(TIMER_NUM)
-#define HAL_timer_isr_epilogue(TIMER_NUM)
+#define HAL_timer_isr_prologue(T)
+#define HAL_timer_isr_epilogue(T)

Marlin/src/HAL/ESP32/watchdog.h

@@ -25,7 +25,7 @@
   extern "C" {
 #endif
 
-    esp_err_t esp_task_wdt_reset();
+  esp_err_t esp_task_wdt_reset();
 
 #ifdef __cplusplus
   }

Marlin/src/HAL/ESP32/wifi.cpp

@@ -59,7 +59,7 @@ void wifi_init() {
 
   MDNS.addService("http", "tcp", 80);
 
-  SERIAL_ECHOLNPAIR("Successfully connected to WiFi with SSID '" WIFI_SSID "', hostname: '" WIFI_HOSTNAME "', IP address: ", WiFi.localIP().toString().c_str());
+  SERIAL_ECHOLNPGM("Successfully connected to WiFi with SSID '" WIFI_SSID "', hostname: '" WIFI_HOSTNAME "', IP address: ", WiFi.localIP().toString().c_str());
 }
 
 #endif // WIFISUPPORT

Marlin/src/HAL/LINUX/HAL.h

@@ -63,9 +63,9 @@ uint8_t _getc();
 extern MSerialT usb_serial;
 #define MYSERIAL1 usb_serial
 
-#define ST7920_DELAY_1 DELAY_NS(600)
-#define ST7920_DELAY_2 DELAY_NS(750)
-#define ST7920_DELAY_3 DELAY_NS(750)
+#define CPU_ST7920_DELAY_1 600
+#define CPU_ST7920_DELAY_2 750
+#define CPU_ST7920_DELAY_3 750
 
 //
 // Interrupts
@@ -79,16 +79,14 @@ extern MSerialT usb_serial;
 inline void HAL_init() {}
 
 // Utility functions
+#pragma GCC diagnostic push
 #if GCC_VERSION <= 50000
-  #pragma GCC diagnostic push
   #pragma GCC diagnostic ignored "-Wunused-function"
 #endif
 
 int freeMemory();
 
-#if GCC_VERSION <= 50000
-  #pragma GCC diagnostic pop
-#endif
+#pragma GCC diagnostic pop
 
 // ADC
 #define HAL_ADC_VREF           5.0
@@ -103,6 +101,9 @@ void HAL_adc_enable_channel(const uint8_t ch);
 void HAL_adc_start_conversion(const uint8_t ch);
 uint16_t HAL_adc_get_result();
 
+// PWM
+inline void set_pwm_duty(const pin_t pin, const uint16_t v, const uint16_t=255, const bool=false) { analogWrite(pin, v); }
+
 // Reset source
 inline void HAL_clear_reset_source(void) {}
 inline uint8_t HAL_get_reset_source(void) { return RST_POWER_ON; }

Marlin/src/HAL/LINUX/MarlinSPI.h

@@ -0,0 +1,26 @@
+/**
+ * Marlin 3D Printer Firmware
+ * Copyright (c) 2021 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
+ *
+ * Based on Sprinter and grbl.
+ * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ *
+ */
+#pragma once
+
+#include <SPI.h>
+
+using MarlinSPI = SPIClass;

Marlin/src/HAL/LINUX/hardware/Gpio.h

@@ -40,7 +40,7 @@ struct GpioEvent {
   pin_type pin_id;
   GpioEvent::Type event;
 
-  GpioEvent(uint64_t timestamp, pin_type pin_id, GpioEvent::Type event){
+  GpioEvent(uint64_t timestamp, pin_type pin_id, GpioEvent::Type event) {
     this->timestamp = timestamp;
     this->pin_id = pin_id;
     this->event = event;

Marlin/src/HAL/LINUX/hardware/Heater.cpp

@@ -54,7 +54,7 @@ void Heater::update() {
 }
 
 void Heater::interrupt(GpioEvent ev) {
-  // ununsed
+  // unused
 }
 
 #endif // __PLAT_LINUX__

Marlin/src/HAL/LINUX/hardware/LinearAxis.cpp

@@ -51,7 +51,7 @@ void LinearAxis::update() {
 }
 
 void LinearAxis::interrupt(GpioEvent ev) {
-  if (ev.pin_id == step_pin && !Gpio::pin_map[enable_pin].value){
+  if (ev.pin_id == step_pin && !Gpio::pin_map[enable_pin].value) {
     if (ev.event == GpioEvent::RISE) {
       last_update = ev.timestamp;
       position += -1 + 2 * Gpio::pin_map[dir_pin].value;

Marlin/src/HAL/LINUX/hardware/Timer.h

@@ -52,7 +52,7 @@ public:
     return (*(intptr_t*)timerid);
   }
 
-  static void handler(int sig, siginfo_t *si, void *uc){
+  static void handler(int sig, siginfo_t *si, void *uc) {
     Timer* _this = (Timer*)si->si_value.sival_ptr;
     _this->avg_error += (Clock::nanos() - _this->start_time) - _this->period; //high_resolution_clock is also limited in precision, but best we have
     _this->avg_error /= 2; //very crude precision analysis (actually within +-500ns usually)

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

@@ -26,7 +26,7 @@
  */
 
 // Emulating RAMPS
-#if ENABLED(SPINDLE_LASER_PWM) && !(SPINDLE_LASER_PWM_PIN == 4 || SPINDLE_LASER_PWM_PIN == 6 || SPINDLE_LASER_PWM_PIN == 11)
+#if ENABLED(SPINDLE_LASER_USE_PWM) && !(SPINDLE_LASER_PWM_PIN == 4 || SPINDLE_LASER_PWM_PIN == 6 || SPINDLE_LASER_PWM_PIN == 11)
   #error "SPINDLE_LASER_PWM_PIN must use SERVO0, SERVO1 or SERVO3 connector"
 #endif
 

Marlin/src/HAL/LINUX/include/pinmapping.h

@@ -55,7 +55,7 @@ constexpr bool VALID_PIN(const pin_t p) { return WITHIN(p, 0, NUM_DIGITAL_PINS);
 // Test whether the pin is PWM
 constexpr bool PWM_PIN(const pin_t p) { return false; }
 
-// Test whether the pin is interruptable
+// Test whether the pin is interruptible
 constexpr bool INTERRUPT_PIN(const pin_t p) { return false; }
 
 // Get the pin number at the given index

Marlin/src/HAL/LINUX/main.cpp

@@ -2,6 +2,9 @@
  * 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
@@ -16,6 +19,7 @@
  * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  *
  */
+
 #ifdef __PLAT_LINUX__
 
 //#define GPIO_LOGGING // Full GPIO and Positional Logging

Marlin/src/HAL/LINUX/pinsDebug.h

@@ -2,6 +2,9 @@
  * 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
@@ -34,6 +37,7 @@
 #define GET_ARRAY_PIN(p)    pin_array[p].pin
 #define PRINT_ARRAY_NAME(x) do{ sprintf_P(buffer, PSTR("%-" STRINGIFY(MAX_NAME_LENGTH) "s"), pin_array[x].name); SERIAL_ECHO(buffer); }while(0)
 #define PRINT_PIN(p)        do{ sprintf_P(buffer, PSTR("%3d "), p); SERIAL_ECHO(buffer); }while(0)
+#define PRINT_PIN_ANALOG(p) do{ sprintf_P(buffer, PSTR(" (A%2d)  "), DIGITAL_PIN_TO_ANALOG_PIN(pin)); SERIAL_ECHO(buffer); }while(0)
 #define MULTI_NAME_PAD  16 // space needed to be pretty if not first name assigned to a pin
 
 // active ADC function/mode/code values for PINSEL registers

Marlin/src/HAL/LINUX/timers.h

@@ -37,14 +37,14 @@ typedef uint32_t hal_timer_t;
 
 #define HAL_TIMER_RATE         ((SystemCoreClock) / 4)  // frequency of timers peripherals
 
-#ifndef STEP_TIMER_NUM
-  #define STEP_TIMER_NUM        0  // Timer Index for Stepper
+#ifndef MF_TIMER_STEP
+  #define MF_TIMER_STEP         0  // Timer Index for Stepper
 #endif
-#ifndef PULSE_TIMER_NUM
-  #define PULSE_TIMER_NUM       STEP_TIMER_NUM
+#ifndef MF_TIMER_PULSE
+  #define MF_TIMER_PULSE        MF_TIMER_STEP
 #endif
-#ifndef TEMP_TIMER_NUM
-  #define TEMP_TIMER_NUM        1  // Timer Index for Temperature
+#ifndef MF_TIMER_TEMP
+  #define MF_TIMER_TEMP         1  // Timer Index for Temperature
 #endif
 
 #define TEMP_TIMER_RATE        1000000
@@ -58,12 +58,12 @@ typedef uint32_t hal_timer_t;
 #define PULSE_TIMER_PRESCALE   STEPPER_TIMER_PRESCALE
 #define PULSE_TIMER_TICKS_PER_US STEPPER_TIMER_TICKS_PER_US
 
-#define ENABLE_STEPPER_DRIVER_INTERRUPT() HAL_timer_enable_interrupt(STEP_TIMER_NUM)
-#define DISABLE_STEPPER_DRIVER_INTERRUPT() HAL_timer_disable_interrupt(STEP_TIMER_NUM)
-#define STEPPER_ISR_ENABLED() HAL_timer_interrupt_enabled(STEP_TIMER_NUM)
+#define ENABLE_STEPPER_DRIVER_INTERRUPT() HAL_timer_enable_interrupt(MF_TIMER_STEP)
+#define DISABLE_STEPPER_DRIVER_INTERRUPT() HAL_timer_disable_interrupt(MF_TIMER_STEP)
+#define STEPPER_ISR_ENABLED() HAL_timer_interrupt_enabled(MF_TIMER_STEP)
 
-#define ENABLE_TEMPERATURE_INTERRUPT() HAL_timer_enable_interrupt(TEMP_TIMER_NUM)
-#define DISABLE_TEMPERATURE_INTERRUPT() HAL_timer_disable_interrupt(TEMP_TIMER_NUM)
+#define ENABLE_TEMPERATURE_INTERRUPT() HAL_timer_enable_interrupt(MF_TIMER_TEMP)
+#define DISABLE_TEMPERATURE_INTERRUPT() HAL_timer_disable_interrupt(MF_TIMER_TEMP)
 
 #ifndef HAL_STEP_TIMER_ISR
   #define HAL_STEP_TIMER_ISR()  extern "C" void TIMER0_IRQHandler()
@@ -77,7 +77,6 @@ typedef uint32_t hal_timer_t;
 #define HAL_PWM_TIMER_ISR()   extern "C" void TIMER3_IRQHandler()
 #define HAL_PWM_TIMER_IRQn
 
-
 void HAL_timer_init();
 void HAL_timer_start(const uint8_t timer_num, const uint32_t frequency);
 
@@ -93,5 +92,5 @@ void HAL_timer_enable_interrupt(const uint8_t timer_num);
 void HAL_timer_disable_interrupt(const uint8_t timer_num);
 bool HAL_timer_interrupt_enabled(const uint8_t timer_num);
 
-#define HAL_timer_isr_prologue(TIMER_NUM)
-#define HAL_timer_isr_epilogue(TIMER_NUM)
+#define HAL_timer_isr_prologue(T)
+#define HAL_timer_isr_epilogue(T)

Marlin/src/HAL/LPC1768/HAL.h

@@ -50,15 +50,9 @@ extern "C" volatile uint32_t _millis;
 //
 // Default graphical display delays
 //
-#ifndef ST7920_DELAY_1
-  #define ST7920_DELAY_1 DELAY_NS(600)
-#endif
-#ifndef ST7920_DELAY_2
-  #define ST7920_DELAY_2 DELAY_NS(750)
-#endif
-#ifndef ST7920_DELAY_3
-  #define ST7920_DELAY_3 DELAY_NS(750)
-#endif
+#define CPU_ST7920_DELAY_1 600
+#define CPU_ST7920_DELAY_2 750
+#define CPU_ST7920_DELAY_3 750
 
 typedef ForwardSerial1Class< decltype(UsbSerial) > DefaultSerial1;
 extern DefaultSerial1 USBSerial;
@@ -113,7 +107,7 @@ extern DefaultSerial1 USBSerial;
     #error "LCD_SERIAL_PORT must be from 0 to 3. You can also use -1 if the board supports Native USB."
   #endif
   #if HAS_DGUS_LCD
-    #define SERIAL_GET_TX_BUFFER_FREE() MSerial0.available()
+    #define SERIAL_GET_TX_BUFFER_FREE() LCD_SERIAL.available()
   #endif
 #endif
 
@@ -129,16 +123,14 @@ extern DefaultSerial1 USBSerial;
 //
 // Utility functions
 //
+#pragma GCC diagnostic push
 #if GCC_VERSION <= 50000
-  #pragma GCC diagnostic push
   #pragma GCC diagnostic ignored "-Wunused-function"
 #endif
 
 int freeMemory();
 
-#if GCC_VERSION <= 50000
-  #pragma GCC diagnostic pop
-#endif
+#pragma GCC diagnostic pop
 
 //
 // ADC API
@@ -162,17 +154,17 @@ int freeMemory();
 
 using FilteredADC = LPC176x::ADC<ADC_LOWPASS_K_VALUE, ADC_MEDIAN_FILTER_SIZE>;
 extern uint32_t HAL_adc_reading;
-[[gnu::always_inline]] inline void HAL_start_adc(const pin_t pin) {
+[[gnu::always_inline]] inline void HAL_adc_start_conversion(const pin_t pin) {
   HAL_adc_reading = FilteredADC::read(pin) >> (16 - HAL_ADC_RESOLUTION); // returns 16bit value, reduce to required bits
 }
-[[gnu::always_inline]] inline uint16_t HAL_read_adc() {
+[[gnu::always_inline]] inline uint16_t HAL_adc_get_result() {
   return HAL_adc_reading;
 }
 
 #define HAL_adc_init()
 #define HAL_ANALOG_SELECT(pin) FilteredADC::enable_channel(pin)
-#define HAL_START_ADC(pin)     HAL_start_adc(pin)
-#define HAL_READ_ADC()         HAL_read_adc()
+#define HAL_START_ADC(pin)     HAL_adc_start_conversion(pin)
+#define HAL_READ_ADC()         HAL_adc_get_result()
 #define HAL_ADC_READY()        (true)
 
 // Test whether the pin is valid

Marlin/src/HAL/LPC1768/MarlinSerial.h

@@ -46,6 +46,8 @@ public:
 
   void end() {}
 
+  uint8_t availableForWrite(void) { /* flushTX(); */ return TX_BUFFER_SIZE; }
+
   #if ENABLED(EMERGENCY_PARSER)
     bool recv_callback(const char c) override;
   #endif

Marlin/src/HAL/LPC1768/eeprom_sdcard.cpp

@@ -1,10 +1,9 @@
 /**
  * Marlin 3D Printer Firmware
- *
  * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
- * Copyright (c) 2016 Bob Cousins bobcousins42@googlemail.com
- * Copyright (c) 2015-2016 Nico Tonnhofer wurstnase.reprap@gmail.com
- * Copyright (c) 2016 Victor Perez victor_pv@hotmail.com
+ *
+ * Based on Sprinter and grbl.
+ * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -20,12 +19,19 @@
  * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  *
  */
+
+/**
+ * Implementation of EEPROM settings in SD Card
+ */
+
 #ifdef TARGET_LPC1768
 
 #include "../../inc/MarlinConfig.h"
 
 #if ENABLED(SDCARD_EEPROM_EMULATION)
 
+//#define DEBUG_SD_EEPROM_EMULATION
+
 #include "../shared/eeprom_api.h"
 
 #include <chanfs/diskio.h>
@@ -38,9 +44,11 @@ FATFS fat_fs;
 FIL eeprom_file;
 bool eeprom_file_open = false;
 
+#define EEPROM_FILENAME "eeprom.dat"
 #ifndef MARLIN_EEPROM_SIZE
   #define MARLIN_EEPROM_SIZE size_t(0x1000) // 4KiB of Emulated EEPROM
 #endif
+
 size_t PersistentStore::capacity() { return MARLIN_EEPROM_SIZE; }
 
 bool PersistentStore::access_start() {
@@ -50,7 +58,7 @@ bool PersistentStore::access_start() {
     MSC_Release_Lock();
     return false;
   }
-  FRESULT res = f_open(&eeprom_file, "eeprom.dat", FA_OPEN_ALWAYS | FA_WRITE | FA_READ);
+  FRESULT res = f_open(&eeprom_file, EEPROM_FILENAME, FA_OPEN_ALWAYS | FA_WRITE | FA_READ);
   if (res) MSC_Release_Lock();
 
   if (res == FR_OK) {
@@ -81,18 +89,20 @@ bool PersistentStore::access_finish() {
 // This extra chit-chat goes away soon, but is helpful for now
 // to see errors that are happening in read_data / write_data
 static void debug_rw(const bool write, int &pos, const uint8_t *value, const size_t size, const FRESULT s, const size_t total=0) {
-  PGM_P const rw_str = write ? PSTR("write") : PSTR("read");
-  SERIAL_CHAR(' ');
-  SERIAL_ECHOPGM_P(rw_str);
-  SERIAL_ECHOLNPAIR("_data(", pos, ",", value, ",", size, ", ...)");
-  if (total) {
-    SERIAL_ECHOPGM(" f_");
-    SERIAL_ECHOPGM_P(rw_str);
-    SERIAL_ECHOPAIR("()=", s, "\n size=", size, "\n bytes_");
-    SERIAL_ECHOLNPAIR_P(write ? PSTR("written=") : PSTR("read="), total);
-  }
-  else
-    SERIAL_ECHOLNPAIR(" f_lseek()=", s);
+  #if ENABLED(DEBUG_SD_EEPROM_EMULATION)
+    FSTR_P const rw_str = write ? F("write") : F("read");
+    SERIAL_CHAR(' ');
+    SERIAL_ECHOF(rw_str);
+    SERIAL_ECHOLNPGM("_data(", pos, ",", *value, ",", size, ", ...)");
+    if (total) {
+      SERIAL_ECHOPGM(" f_");
+      SERIAL_ECHOF(rw_str);
+      SERIAL_ECHOPGM("()=", s, "\n size=", size, "\n bytes_");
+      SERIAL_ECHOLNF(write ? F("written=") : F("read="), total);
+    }
+    else
+      SERIAL_ECHOLNPGM(" f_lseek()=", s);
+  #endif
 }
 
 // File function return codes for type FRESULT. This goes away soon, but

Marlin/src/HAL/LPC1768/fast_pwm.cpp

@@ -22,18 +22,20 @@
 #ifdef TARGET_LPC1768
 
 #include "../../inc/MarlinConfigPre.h"
+#include <pwm.h>
+
+void set_pwm_duty(const pin_t pin, const uint16_t v, const uint16_t v_size/*=255*/, const bool invert/*=false*/) {
+  if (!LPC176x::pin_is_valid(pin)) return;
+  if (LPC176x::pwm_attach_pin(pin))
+    LPC176x::pwm_write_ratio(pin, invert ? 1.0f - (float)v / v_size : (float)v / v_size);  // map 1-254 onto PWM range
+}
 
 #if NEEDS_HARDWARE_PWM // Specific meta-flag for features that mandate PWM
 
-#include <pwm.h>
+  void set_pwm_frequency(const pin_t pin, int f_desired) {
+    LPC176x::pwm_set_frequency(pin, f_desired);
+  }
 
-void set_pwm_frequency(const pin_t pin, int f_desired) {
-  LPC176x::pwm_set_frequency(pin, f_desired);
-}
+#endif
 
-void set_pwm_duty(const pin_t pin, const uint16_t v, const uint16_t v_size/*=255*/, const bool invert/*=false*/) {
-  LPC176x::pwm_write_ratio(pin, invert ? 1.0f - (float)v / v_size : (float)v / v_size);
-}
-
-#endif // NEEDS_HARDWARE_PWM
 #endif // TARGET_LPC1768

Marlin/src/HAL/LPC1768/inc/SanityCheck.h

@@ -67,7 +67,7 @@ static_assert(!(NUM_SERVOS && ENABLED(FAST_PWM_FAN)), "BLTOUCH and Servos are in
  * Test LPC176x-specific configuration values for errors at compile-time.
  */
 
-//#if ENABLED(SPINDLE_LASER_PWM) && !(SPINDLE_LASER_PWM_PIN == 4 || SPINDLE_LASER_PWM_PIN == 6 || SPINDLE_LASER_PWM_PIN == 11)
+//#if ENABLED(SPINDLE_LASER_USE_PWM) && !(SPINDLE_LASER_PWM_PIN == 4 || SPINDLE_LASER_PWM_PIN == 6 || SPINDLE_LASER_PWM_PIN == 11)
 //  #error "SPINDLE_LASER_PWM_PIN must use SERVO0, SERVO1 or SERVO3 connector"
 //#endif
 
@@ -146,7 +146,7 @@ static_assert(DISABLED(BAUD_RATE_GCODE), "BAUD_RATE_GCODE is not yet supported o
     #error "Serial port pins (2) conflict with other pins!"
   #elif Y_HOME_TO_MIN && IS_TX2(Y_STOP_PIN)
     #error "Serial port pins (2) conflict with Y endstop pin!"
-  #elif HAS_CUSTOM_PROBE_PIN && IS_TX2(Z_MIN_PROBE_PIN)
+  #elif USES_Z_MIN_PROBE_PIN && IS_TX2(Z_MIN_PROBE_PIN)
     #error "Serial port pins (2) conflict with probe pin!"
   #elif ANY_TX(2, X_ENABLE_PIN, Y_ENABLE_PIN) || ANY_RX(2, X_DIR_PIN, Y_DIR_PIN)
     #error "Serial port pins (2) conflict with X/Y stepper pins!"
@@ -237,7 +237,7 @@ static_assert(DISABLED(BAUD_RATE_GCODE), "BAUD_RATE_GCODE is not yet supported o
     #define PIN_IS_SCL2(P) (P##_PIN == P0_11)
     #if PIN_IS_SDA2(Y_STOP)
       #error "i2c SDA2 overlaps with Y endstop pin!"
-    #elif HAS_CUSTOM_PROBE_PIN && PIN_IS_SDA2(Z_MIN_PROBE)
+    #elif USES_Z_MIN_PROBE_PIN && PIN_IS_SDA2(Z_MIN_PROBE)
       #error "i2c SDA2 overlaps with Z probe pin!"
     #elif PIN_IS_SDA2(X_ENABLE) || PIN_IS_SDA2(Y_ENABLE)
       #error "i2c SDA2 overlaps with X/Y ENABLE pin!"

Marlin/src/HAL/LPC1768/pinsDebug.h

@@ -2,6 +2,9 @@
  * 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
@@ -33,8 +36,9 @@
 #define PRINT_PORT(p)
 #define GET_ARRAY_PIN(p) pin_array[p].pin
 #define PRINT_ARRAY_NAME(x) do{ sprintf_P(buffer, PSTR("%-" STRINGIFY(MAX_NAME_LENGTH) "s"), pin_array[x].name); SERIAL_ECHO(buffer); }while(0)
-#define PRINT_PIN(p) do{ sprintf_P(buffer, PSTR("%d.%02d"), LPC176x::pin_port(p), LPC176x::pin_bit(p)); SERIAL_ECHO(buffer); }while(0)
-#define MULTI_NAME_PAD 16 // space needed to be pretty if not first name assigned to a pin
+#define PRINT_PIN(p) do{ sprintf_P(buffer, PSTR("P%d_%02d"), LPC176x::pin_port(p), LPC176x::pin_bit(p)); SERIAL_ECHO(buffer); }while(0)
+#define PRINT_PIN_ANALOG(p) do{ sprintf_P(buffer, PSTR("_A%d     "), LPC176x::pin_get_adc_channel(pin)); SERIAL_ECHO(buffer); }while(0)
+#define MULTI_NAME_PAD 17 // space needed to be pretty if not first name assigned to a pin
 
 // pins that will cause hang/reset/disconnect in M43 Toggle and Watch utilities
 #ifndef M43_NEVER_TOUCH
@@ -48,6 +52,4 @@ bool GET_PINMODE(const pin_t pin) {
   return LPC176x::gpio_direction(pin);
 }
 
-bool GET_ARRAY_IS_DIGITAL(const pin_t pin) {
-  return (!LPC176x::pin_has_adc(pin) || !LPC176x::pin_adc_enabled(pin));
-}
+#define GET_ARRAY_IS_DIGITAL(x) ((bool) pin_array[x].is_digital)

Marlin/src/HAL/LPC1768/tft/tft_spi.cpp

@@ -26,39 +26,22 @@
 
 #include "tft_spi.h"
 
-//TFT_SPI tft;
-
 SPIClass TFT_SPI::SPIx(1);
 
-#define TFT_CS_H  WRITE(TFT_CS_PIN, HIGH)
-#define TFT_CS_L  WRITE(TFT_CS_PIN, LOW)
-
-#define TFT_DC_H  WRITE(TFT_DC_PIN, HIGH)
-#define TFT_DC_L  WRITE(TFT_DC_PIN, LOW)
-
-#define TFT_RST_H WRITE(TFT_RESET_PIN, HIGH)
-#define TFT_RST_L WRITE(TFT_RESET_PIN, LOW)
-
-#define TFT_BLK_H WRITE(TFT_BACKLIGHT_PIN, HIGH)
-#define TFT_BLK_L WRITE(TFT_BACKLIGHT_PIN, LOW)
-
 void TFT_SPI::Init() {
   #if PIN_EXISTS(TFT_RESET)
-    SET_OUTPUT(TFT_RESET_PIN);
-    TFT_RST_H;
+    OUT_WRITE(TFT_RESET_PIN, HIGH);
     delay(100);
   #endif
 
   #if PIN_EXISTS(TFT_BACKLIGHT)
-    SET_OUTPUT(TFT_BACKLIGHT_PIN);
-    TFT_BLK_H;
+    OUT_WRITE(TFT_BACKLIGHT_PIN, HIGH);
   #endif
 
   SET_OUTPUT(TFT_DC_PIN);
   SET_OUTPUT(TFT_CS_PIN);
-
-  TFT_DC_H;
-  TFT_CS_H;
+  WRITE(TFT_DC_PIN, HIGH);
+  WRITE(TFT_CS_PIN, HIGH);
 
   /**
    * STM32F1 APB2 = 72MHz, APB1 = 36MHz, max SPI speed of this MCU if 18Mhz
@@ -97,7 +80,7 @@ void TFT_SPI::Init() {
 void TFT_SPI::DataTransferBegin(uint16_t DataSize) {
   SPIx.setDataSize(DataSize);
   SPIx.begin();
-  TFT_CS_L;
+  WRITE(TFT_CS_PIN, LOW);
 }
 
 uint32_t TFT_SPI::GetID() {
@@ -116,7 +99,7 @@ uint32_t TFT_SPI::ReadID(uint16_t Reg) {
     SPIx.setDataSize(DATASIZE_8BIT);
     SPIx.setClock(SPI_CLOCK_DIV64);
     SPIx.begin();
-    TFT_CS_L;
+    WRITE(TFT_CS_PIN, LOW);
     WriteReg(Reg);
 
     LOOP_L_N(i, 4) {
@@ -131,21 +114,15 @@ uint32_t TFT_SPI::ReadID(uint16_t Reg) {
   return data >> 7;
 }
 
-bool TFT_SPI::isBusy() {
-  return false;
-}
+bool TFT_SPI::isBusy() { return false; }
 
-void TFT_SPI::Abort() {
-  DataTransferEnd();
-}
+void TFT_SPI::Abort() { DataTransferEnd(); }
 
-void TFT_SPI::Transmit(uint16_t Data) {
-  SPIx.transfer(Data);
-}
+void TFT_SPI::Transmit(uint16_t Data) { SPIx.transfer(Data); }
 
 void TFT_SPI::TransmitDMA(uint32_t MemoryIncrease, uint16_t *Data, uint16_t Count) {
-  DataTransferBegin(DATASIZE_16BIT); //16
-  TFT_DC_H;
+  DataTransferBegin(DATASIZE_16BIT);
+  WRITE(TFT_DC_PIN, HIGH);
   SPIx.dmaSend(Data, Count, MemoryIncrease);
   DataTransferEnd();
 }

Marlin/src/HAL/LPC1768/timers.cpp

@@ -40,7 +40,7 @@ void HAL_timer_init() {
 
 void HAL_timer_start(const uint8_t timer_num, const uint32_t frequency) {
   switch (timer_num) {
-    case 0:
+    case MF_TIMER_STEP:
       LPC_TIM0->MCR = _BV(SBIT_MR0I) | _BV(SBIT_MR0R); // Match on MR0, reset on MR0, interrupts when NVIC enables them
       LPC_TIM0->MR0 = uint32_t(STEPPER_TIMER_RATE) / frequency; // Match value (period) to set frequency
       LPC_TIM0->TCR = _BV(SBIT_CNTEN); // Counter Enable
@@ -49,7 +49,7 @@ void HAL_timer_start(const uint8_t timer_num, const uint32_t frequency) {
       NVIC_EnableIRQ(TIMER0_IRQn);
       break;
 
-    case 1:
+    case MF_TIMER_TEMP:
       LPC_TIM1->MCR = _BV(SBIT_MR0I) | _BV(SBIT_MR0R); // Match on MR0, reset on MR0, interrupts when NVIC enables them
       LPC_TIM1->MR0 = uint32_t(TEMP_TIMER_RATE) / frequency;
       LPC_TIM1->TCR = _BV(SBIT_CNTEN); // Counter Enable

Marlin/src/HAL/LPC1768/timers.h

@@ -60,17 +60,17 @@ typedef uint32_t hal_timer_t;
 
 #define HAL_TIMER_RATE         ((F_CPU) / 4)  // frequency of timers peripherals
 
-#ifndef STEP_TIMER_NUM
-  #define STEP_TIMER_NUM        0  // Timer Index for Stepper
+#ifndef MF_TIMER_STEP
+  #define MF_TIMER_STEP         0  // Timer Index for Stepper
 #endif
-#ifndef PULSE_TIMER_NUM
-  #define PULSE_TIMER_NUM       STEP_TIMER_NUM
+#ifndef MF_TIMER_PULSE
+  #define MF_TIMER_PULSE        MF_TIMER_STEP
 #endif
-#ifndef TEMP_TIMER_NUM
-  #define TEMP_TIMER_NUM        1  // Timer Index for Temperature
+#ifndef MF_TIMER_TEMP
+  #define MF_TIMER_TEMP         1  // Timer Index for Temperature
 #endif
-#ifndef PWM_TIMER_NUM
-  #define PWM_TIMER_NUM         3  // Timer Index for PWM
+#ifndef MF_TIMER_PWM
+  #define MF_TIMER_PWM          3  // Timer Index for PWM
 #endif
 
 #define TEMP_TIMER_RATE        1000000
@@ -84,23 +84,23 @@ typedef uint32_t hal_timer_t;
 #define PULSE_TIMER_PRESCALE   STEPPER_TIMER_PRESCALE
 #define PULSE_TIMER_TICKS_PER_US STEPPER_TIMER_TICKS_PER_US
 
-#define ENABLE_STEPPER_DRIVER_INTERRUPT() HAL_timer_enable_interrupt(STEP_TIMER_NUM)
-#define DISABLE_STEPPER_DRIVER_INTERRUPT() HAL_timer_disable_interrupt(STEP_TIMER_NUM)
-#define STEPPER_ISR_ENABLED() HAL_timer_interrupt_enabled(STEP_TIMER_NUM)
+#define ENABLE_STEPPER_DRIVER_INTERRUPT() HAL_timer_enable_interrupt(MF_TIMER_STEP)
+#define DISABLE_STEPPER_DRIVER_INTERRUPT() HAL_timer_disable_interrupt(MF_TIMER_STEP)
+#define STEPPER_ISR_ENABLED() HAL_timer_interrupt_enabled(MF_TIMER_STEP)
 
-#define ENABLE_TEMPERATURE_INTERRUPT() HAL_timer_enable_interrupt(TEMP_TIMER_NUM)
-#define DISABLE_TEMPERATURE_INTERRUPT() HAL_timer_disable_interrupt(TEMP_TIMER_NUM)
+#define ENABLE_TEMPERATURE_INTERRUPT() HAL_timer_enable_interrupt(MF_TIMER_TEMP)
+#define DISABLE_TEMPERATURE_INTERRUPT() HAL_timer_disable_interrupt(MF_TIMER_TEMP)
 
 #ifndef HAL_STEP_TIMER_ISR
-  #define HAL_STEP_TIMER_ISR() _HAL_TIMER_ISR(STEP_TIMER_NUM)
+  #define HAL_STEP_TIMER_ISR() _HAL_TIMER_ISR(MF_TIMER_STEP)
 #endif
 #ifndef HAL_TEMP_TIMER_ISR
-  #define HAL_TEMP_TIMER_ISR() _HAL_TIMER_ISR(TEMP_TIMER_NUM)
+  #define HAL_TEMP_TIMER_ISR() _HAL_TIMER_ISR(MF_TIMER_TEMP)
 #endif
 
 // Timer references by index
-#define STEP_TIMER_PTR _HAL_TIMER(STEP_TIMER_NUM)
-#define TEMP_TIMER_PTR _HAL_TIMER(TEMP_TIMER_NUM)
+#define STEP_TIMER_PTR _HAL_TIMER(MF_TIMER_STEP)
+#define TEMP_TIMER_PTR _HAL_TIMER(MF_TIMER_TEMP)
 
 // ------------------------
 // Public functions
@@ -110,38 +110,38 @@ void HAL_timer_start(const uint8_t timer_num, const uint32_t frequency);
 
 FORCE_INLINE static void HAL_timer_set_compare(const uint8_t timer_num, const hal_timer_t compare) {
   switch (timer_num) {
-    case 0: STEP_TIMER_PTR->MR0 = compare; break; // Stepper Timer Match Register 0
-    case 1: TEMP_TIMER_PTR->MR0 = compare; break; //    Temp Timer Match Register 0
+    case MF_TIMER_STEP: STEP_TIMER_PTR->MR0 = compare; break; // Stepper Timer Match Register 0
+    case MF_TIMER_TEMP: TEMP_TIMER_PTR->MR0 = compare; break; //    Temp Timer Match Register 0
   }
 }
 
 FORCE_INLINE static hal_timer_t HAL_timer_get_compare(const uint8_t timer_num) {
   switch (timer_num) {
-    case 0: return STEP_TIMER_PTR->MR0; // Stepper Timer Match Register 0
-    case 1: return TEMP_TIMER_PTR->MR0; //    Temp Timer Match Register 0
+    case MF_TIMER_STEP: return STEP_TIMER_PTR->MR0; // Stepper Timer Match Register 0
+    case MF_TIMER_TEMP: return TEMP_TIMER_PTR->MR0; //    Temp Timer Match Register 0
   }
   return 0;
 }
 
 FORCE_INLINE static hal_timer_t HAL_timer_get_count(const uint8_t timer_num) {
   switch (timer_num) {
-    case 0: return STEP_TIMER_PTR->TC; // Stepper Timer Count
-    case 1: return TEMP_TIMER_PTR->TC; //    Temp Timer Count
+    case MF_TIMER_STEP: return STEP_TIMER_PTR->TC; // Stepper Timer Count
+    case MF_TIMER_TEMP: return TEMP_TIMER_PTR->TC; //    Temp Timer Count
   }
   return 0;
 }
 
 FORCE_INLINE static void HAL_timer_enable_interrupt(const uint8_t timer_num) {
   switch (timer_num) {
-    case 0: NVIC_EnableIRQ(TIMER0_IRQn); break; // Enable interrupt handler
-    case 1: NVIC_EnableIRQ(TIMER1_IRQn); break; // Enable interrupt handler
+    case MF_TIMER_STEP: NVIC_EnableIRQ(TIMER0_IRQn); break; // Enable interrupt handler
+    case MF_TIMER_TEMP: NVIC_EnableIRQ(TIMER1_IRQn); break; // Enable interrupt handler
   }
 }
 
 FORCE_INLINE static void HAL_timer_disable_interrupt(const uint8_t timer_num) {
   switch (timer_num) {
-    case 0: NVIC_DisableIRQ(TIMER0_IRQn); break; // Disable interrupt handler
-    case 1: NVIC_DisableIRQ(TIMER1_IRQn); break; // Disable interrupt handler
+    case MF_TIMER_STEP: NVIC_DisableIRQ(TIMER0_IRQn); break; // Disable interrupt handler
+    case MF_TIMER_TEMP: NVIC_DisableIRQ(TIMER1_IRQn); break; // Disable interrupt handler
   }
 
   // We NEED memory barriers to ensure Interrupts are actually disabled!
@@ -157,17 +157,17 @@ FORCE_INLINE static bool NVIC_GetEnableIRQ(IRQn_Type IRQn) {
 
 FORCE_INLINE static bool HAL_timer_interrupt_enabled(const uint8_t timer_num) {
   switch (timer_num) {
-    case 0: return NVIC_GetEnableIRQ(TIMER0_IRQn); // Check if interrupt is enabled or not
-    case 1: return NVIC_GetEnableIRQ(TIMER1_IRQn); // Check if interrupt is enabled or not
+    case MF_TIMER_STEP: return NVIC_GetEnableIRQ(TIMER0_IRQn); // Check if interrupt is enabled or not
+    case MF_TIMER_TEMP: return NVIC_GetEnableIRQ(TIMER1_IRQn); // Check if interrupt is enabled or not
   }
   return false;
 }
 
 FORCE_INLINE static void HAL_timer_isr_prologue(const uint8_t timer_num) {
   switch (timer_num) {
-    case 0: SBI(STEP_TIMER_PTR->IR, SBIT_CNTEN); break;
-    case 1: SBI(TEMP_TIMER_PTR->IR, SBIT_CNTEN); break;
+    case MF_TIMER_STEP: SBI(STEP_TIMER_PTR->IR, SBIT_CNTEN); break;
+    case MF_TIMER_TEMP: SBI(TEMP_TIMER_PTR->IR, SBIT_CNTEN); break;
   }
 }
 
-#define HAL_timer_isr_epilogue(TIMER_NUM)
+#define HAL_timer_isr_epilogue(T)

Marlin/src/HAL/LPC1768/u8g/u8g_com_HAL_LPC1768_hw_spi.cpp

@@ -59,7 +59,7 @@
 
 #if HAS_MARLINUI_U8GLIB
 
-#include <U8glib.h>
+#include <U8glib-HAL.h>
 #include "../../shared/HAL_SPI.h"
 
 #ifndef LCD_SPI_SPEED

Marlin/src/HAL/LPC1768/u8g/u8g_com_HAL_LPC1768_ssd_hw_i2c.cpp

@@ -79,7 +79,7 @@
 
 #if HAS_MARLINUI_U8GLIB
 
-#include <U8glib.h>
+#include <U8glib-HAL.h>
 
 #define I2C_SLA         (0x3C*2)
 //#define I2C_CMD_MODE  0x080

Marlin/src/HAL/LPC1768/u8g/u8g_com_HAL_LPC1768_st7920_hw_spi.cpp

@@ -59,7 +59,7 @@
 
 #if HAS_MARLINUI_U8GLIB
 
-#include <U8glib.h>
+#include <U8glib-HAL.h>
 #include "../../shared/HAL_SPI.h"
 #include "../../shared/Delay.h"
 

Marlin/src/HAL/LPC1768/u8g/u8g_com_HAL_LPC1768_st7920_sw_spi.cpp

@@ -57,9 +57,9 @@
 
 #include "../../../inc/MarlinConfigPre.h"
 
-#if ENABLED(U8GLIB_ST7920)
+#if IS_U8GLIB_ST7920
 
-#include <U8glib.h>
+#include <U8glib-HAL.h>
 #include <SoftwareSPI.h>
 #include "../../shared/Delay.h"
 #include "../../shared/HAL_SPI.h"
@@ -143,5 +143,5 @@ uint8_t u8g_com_HAL_LPC1768_ST7920_sw_spi_fn(u8g_t *u8g, uint8_t msg, uint8_t ar
   return 1;
 }
 
-#endif // U8GLIB_ST7920
+#endif // IS_U8GLIB_ST7920
 #endif // TARGET_LPC1768

Marlin/src/HAL/LPC1768/u8g/u8g_com_HAL_LPC1768_sw_spi.cpp

@@ -57,7 +57,7 @@
 
 #include "../../../inc/MarlinConfigPre.h"
 
-#if HAS_MARLINUI_U8GLIB && DISABLED(U8GLIB_ST7920)
+#if HAS_MARLINUI_U8GLIB && !IS_U8GLIB_ST7920
 
 #include <SoftwareSPI.h>
 #include "../../shared/HAL_SPI.h"
@@ -71,7 +71,7 @@
 #include <LPC17xx.h>
 #include <gpio.h>
 
-#include <U8glib.h>
+#include <U8glib-HAL.h>
 
 uint8_t swSpiTransfer_mode_0(uint8_t b, const uint8_t spi_speed, const pin_t sck_pin, const pin_t miso_pin, const pin_t mosi_pin ) {
 
@@ -205,5 +205,5 @@ uint8_t u8g_com_HAL_LPC1768_sw_spi_fn(u8g_t *u8g, uint8_t msg, uint8_t arg_val,
   return 1;
 }
 
-#endif // HAS_MARLINUI_U8GLIB && !U8GLIB_ST7920
+#endif // HAS_MARLINUI_U8GLIB && !IS_U8GLIB_ST7920
 #endif // TARGET_LPC1768

Marlin/src/HAL/LPC1768/upload_extra_script.py

@@ -1,123 +1,127 @@
 #
-# sets output_port
+# upload_extra_script.py
+# set the output_port
 #  if target_filename is found then that drive is used
 #  else if target_drive is found then that drive is used
 #
 from __future__ import print_function
 
-target_filename = "FIRMWARE.CUR"
-target_drive = "REARM"
+import pioutil
+if pioutil.is_pio_build():
 
-import os,getpass,platform
+	target_filename = "FIRMWARE.CUR"
+	target_drive = "REARM"
 
-current_OS = platform.system()
-Import("env")
+	import os,getpass,platform
 
-def print_error(e):
-	print('\nUnable to find destination disk (%s)\n' \
-		  'Please select it in platformio.ini using the upload_port keyword ' \
-		  '(https://docs.platformio.org/en/latest/projectconf/section_env_upload.html) ' \
-		  'or copy the firmware (.pio/build/%s/firmware.bin) manually to the appropriate disk\n' \
-		  %(e, env.get('PIOENV')))
+	current_OS = platform.system()
+	Import("env")
 
-def before_upload(source, target, env):
-	try:
-		#
-		# Find a disk for upload
-		#
-		upload_disk = 'Disk not found'
-		target_file_found = False
-		target_drive_found = False
-		if current_OS == 'Windows':
+	def print_error(e):
+		print('\nUnable to find destination disk (%s)\n' \
+			  'Please select it in platformio.ini using the upload_port keyword ' \
+			  '(https://docs.platformio.org/en/latest/projectconf/section_env_upload.html) ' \
+			  'or copy the firmware (.pio/build/%s/firmware.bin) manually to the appropriate disk\n' \
+			  %(e, env.get('PIOENV')))
+
+	def before_upload(source, target, env):
+		try:
 			#
-			# platformio.ini will accept this for a Windows upload port designation: 'upload_port = L:'
-			#   Windows - doesn't care about the disk's name, only cares about the drive letter
-			import subprocess,string
-			from ctypes import windll
+			# Find a disk for upload
+			#
+			upload_disk = 'Disk not found'
+			target_file_found = False
+			target_drive_found = False
+			if current_OS == 'Windows':
+				#
+				# platformio.ini will accept this for a Windows upload port designation: 'upload_port = L:'
+				#   Windows - doesn't care about the disk's name, only cares about the drive letter
+				import subprocess,string
+				from ctypes import windll
 
-			# getting list of drives
-			# https://stackoverflow.com/questions/827371/is-there-a-way-to-list-all-the-available-drive-letters-in-python
-			drives = []
-			bitmask = windll.kernel32.GetLogicalDrives()
-			for letter in string.ascii_uppercase:
-				if bitmask & 1:
-					drives.append(letter)
-				bitmask >>= 1
+				# getting list of drives
+				# https://stackoverflow.com/questions/827371/is-there-a-way-to-list-all-the-available-drive-letters-in-python
+				drives = []
+				bitmask = windll.kernel32.GetLogicalDrives()
+				for letter in string.ascii_uppercase:
+					if bitmask & 1:
+						drives.append(letter)
+					bitmask >>= 1
 
-			for drive in drives:
-				final_drive_name = drive + ':\\'
-				# print ('disc check: {}'.format(final_drive_name))
-				try:
-					volume_info = str(subprocess.check_output('cmd /C dir ' + final_drive_name, stderr=subprocess.STDOUT))
-				except Exception as e:
-					print ('error:{}'.format(e))
-					continue
-				else:
-					if target_drive in volume_info and not target_file_found:  # set upload if not found target file yet
-						target_drive_found = True
-						upload_disk = final_drive_name
-					if target_filename in volume_info:
-						if not target_file_found:
+				for drive in drives:
+					final_drive_name = drive + ':\\'
+					# print ('disc check: {}'.format(final_drive_name))
+					try:
+						volume_info = str(subprocess.check_output('cmd /C dir ' + final_drive_name, stderr=subprocess.STDOUT))
+					except Exception as e:
+						print ('error:{}'.format(e))
+						continue
+					else:
+						if target_drive in volume_info and not target_file_found:  # set upload if not found target file yet
+							target_drive_found = True
 							upload_disk = final_drive_name
-						target_file_found = True
+						if target_filename in volume_info:
+							if not target_file_found:
+								upload_disk = final_drive_name
+							target_file_found = True
 
-		elif current_OS == 'Linux':
-			#
-			# platformio.ini will accept this for a Linux upload port designation: 'upload_port = /media/media_name/drive'
-			#
-			drives = os.listdir(os.path.join(os.sep, 'media', getpass.getuser()))
-			if target_drive in drives:  # If target drive is found, use it.
-				target_drive_found = True
-				upload_disk = os.path.join(os.sep, 'media', getpass.getuser(), target_drive) + os.sep
-			else:
+			elif current_OS == 'Linux':
+				#
+				# platformio.ini will accept this for a Linux upload port designation: 'upload_port = /media/media_name/drive'
+				#
+				drives = os.listdir(os.path.join(os.sep, 'media', getpass.getuser()))
+				if target_drive in drives:  # If target drive is found, use it.
+					target_drive_found = True
+					upload_disk = os.path.join(os.sep, 'media', getpass.getuser(), target_drive) + os.sep
+				else:
+					for drive in drives:
+						try:
+							files = os.listdir(os.path.join(os.sep, 'media', getpass.getuser(), drive))
+						except:
+							continue
+						else:
+							if target_filename in files:
+								upload_disk = os.path.join(os.sep, 'media', getpass.getuser(), drive) + os.sep
+								target_file_found = True
+								break
+				#
+				# set upload_port to drive if found
+				#
+
+				if target_file_found or target_drive_found:
+					env.Replace(
+						UPLOAD_FLAGS="-P$UPLOAD_PORT"
+					)
+
+			elif current_OS == 'Darwin':  # MAC
+				#
+				# platformio.ini will accept this for a OSX upload port designation: 'upload_port = /media/media_name/drive'
+				#
+				drives = os.listdir('/Volumes')  # human readable names
+				if target_drive in drives and not target_file_found:  # set upload if not found target file yet
+					target_drive_found = True
+					upload_disk = '/Volumes/' + target_drive + '/'
 				for drive in drives:
 					try:
-						files = os.listdir(os.path.join(os.sep, 'media', getpass.getuser(), drive))
+						filenames = os.listdir('/Volumes/' + drive + '/')   # will get an error if the drive is protected
 					except:
 						continue
 					else:
-						if target_filename in files:
-							upload_disk = os.path.join(os.sep, 'media', getpass.getuser(), drive) + os.sep
+						if target_filename in filenames:
+							if not target_file_found:
+								upload_disk = '/Volumes/' + drive + '/'
 							target_file_found = True
-							break
-			#
-			# set upload_port to drive if found
-			#
 
+			#
+			# Set upload_port to drive if found
+			#
 			if target_file_found or target_drive_found:
-				env.Replace(
-					UPLOAD_FLAGS="-P$UPLOAD_PORT"
-				)
+				env.Replace(UPLOAD_PORT=upload_disk)
+				print('\nUpload disk: ', upload_disk, '\n')
+			else:
+				print_error('Autodetect Error')
 
-		elif current_OS == 'Darwin':  # MAC
-			#
-			# platformio.ini will accept this for a OSX upload port designation: 'upload_port = /media/media_name/drive'
-			#
-			drives = os.listdir('/Volumes')  # human readable names
-			if target_drive in drives and not target_file_found:  # set upload if not found target file yet
-				target_drive_found = True
-				upload_disk = '/Volumes/' + target_drive + '/'
-			for drive in drives:
-				try:
-					filenames = os.listdir('/Volumes/' + drive + '/')   # will get an error if the drive is protected
-				except:
-					continue
-				else:
-					if target_filename in filenames:
-						if not target_file_found:
-							upload_disk = '/Volumes/' + drive + '/'
-						target_file_found = True
+		except Exception as e:
+			print_error(str(e))
 
-		#
-		# Set upload_port to drive if found
-		#
-		if target_file_found or target_drive_found:
-			env.Replace(UPLOAD_PORT=upload_disk)
-			print('\nUpload disk: ', upload_disk, '\n')
-		else:
-			print_error('Autodetect Error')
-
-	except Exception as e:
-		print_error(str(e))
-
-env.AddPreAction("upload", before_upload)
+	env.AddPreAction("upload", before_upload)

Marlin/src/HAL/NATIVE_SIM/HAL.h

@@ -0,0 +1,222 @@
+/**
+ * Marlin 3D Printer Firmware
+ *
+ * Copyright (c) 2021 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
+ * Copyright (c) 2016 Bob Cousins bobcousins42@googlemail.com
+ * Copyright (c) 2015-2016 Nico Tonnhofer wurstnase.reprap@gmail.com
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ *
+ */
+#pragma once
+
+#define CPU_32_BIT
+#define HAL_IDLETASK
+void HAL_idletask();
+
+#define F_CPU 100000000
+#define SystemCoreClock F_CPU
+#include <stdint.h>
+#include <stdarg.h>
+
+#undef min
+#undef max
+
+#include <algorithm>
+#include "pinmapping.h"
+
+void _printf (const  char *format, ...);
+void _putc(uint8_t c);
+uint8_t _getc();
+
+//extern "C" volatile uint32_t _millis;
+
+//arduino: Print.h
+#define DEC 10
+#define HEX 16
+#define OCT  8
+#define BIN  2
+//arduino: binary.h (weird defines)
+#define B01 1
+#define B10 2
+
+#include "../shared/Marduino.h"
+#include "../shared/math_32bit.h"
+#include "../shared/HAL_SPI.h"
+#include "fastio.h"
+#include "watchdog.h"
+#include "serial.h"
+
+#define SHARED_SERVOS HAS_SERVOS
+
+extern MSerialT serial_stream_0;
+extern MSerialT serial_stream_1;
+extern MSerialT serial_stream_2;
+extern MSerialT serial_stream_3;
+
+#define _MSERIAL(X) serial_stream_##X
+#define MSERIAL(X) _MSERIAL(X)
+
+#if WITHIN(SERIAL_PORT, 0, 3)
+  #define MYSERIAL1 MSERIAL(SERIAL_PORT)
+#else
+  #error "SERIAL_PORT must be from 0 to 3. Please update your configuration."
+#endif
+
+#ifdef SERIAL_PORT_2
+  #if WITHIN(SERIAL_PORT_2, 0, 3)
+    #define MYSERIAL2 MSERIAL(SERIAL_PORT_2)
+  #else
+    #error "SERIAL_PORT_2 must be from 0 to 3. Please update your configuration."
+  #endif
+#endif
+
+#ifdef MMU2_SERIAL_PORT
+  #if WITHIN(MMU2_SERIAL_PORT, 0, 3)
+    #define MMU2_SERIAL MSERIAL(MMU2_SERIAL_PORT)
+  #else
+    #error "MMU2_SERIAL_PORT must be from 0 to 3. Please update your configuration."
+  #endif
+#endif
+
+#ifdef LCD_SERIAL_PORT
+  #if WITHIN(LCD_SERIAL_PORT, 0, 3)
+    #define LCD_SERIAL MSERIAL(LCD_SERIAL_PORT)
+  #else
+    #error "LCD_SERIAL_PORT must be from 0 to 3. Please update your configuration."
+  #endif
+#endif
+
+
+#define CPU_ST7920_DELAY_1 600
+#define CPU_ST7920_DELAY_2 750
+#define CPU_ST7920_DELAY_3 750
+
+//
+// Interrupts
+//
+#define CRITICAL_SECTION_START()
+#define CRITICAL_SECTION_END()
+#define ISRS_ENABLED()
+#define ENABLE_ISRS()
+#define DISABLE_ISRS()
+
+inline void HAL_init() {}
+
+// Utility functions
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wunused-function"
+int freeMemory();
+#pragma GCC diagnostic pop
+
+// ADC
+#define HAL_ADC_VREF           5.0
+#define HAL_ADC_RESOLUTION    10
+#define HAL_ANALOG_SELECT(ch) HAL_adc_enable_channel(ch)
+#define HAL_START_ADC(ch)     HAL_adc_start_conversion(ch)
+#define HAL_READ_ADC()        HAL_adc_get_result()
+#define HAL_ADC_READY()       true
+
+void HAL_adc_init();
+void HAL_adc_enable_channel(const uint8_t ch);
+void HAL_adc_start_conversion(const uint8_t ch);
+uint16_t HAL_adc_get_result();
+
+// PWM
+inline void set_pwm_duty(const pin_t pin, const uint16_t v, const uint16_t=255, const bool=false) { analogWrite(pin, v); }
+
+// Reset source
+inline void HAL_clear_reset_source(void) {}
+inline uint8_t HAL_get_reset_source(void) { return RST_POWER_ON; }
+
+void HAL_reboot();
+
+/* ---------------- Delay in cycles */
+
+#define DELAY_CYCLES(x) Kernel::delayCycles(x)
+#define SYSTEM_YIELD() Kernel::yield()
+
+// Maple Compatibility
+typedef void (*systickCallback_t)(void);
+void systick_attach_callback(systickCallback_t cb);
+extern volatile uint32_t systick_uptime_millis;
+
+// Marlin uses strstr in constexpr context, this is not supported, workaround by defining constexpr versions of the required functions.
+#define strstr(a, b) strstr_constexpr((a), (b))
+
+constexpr inline std::size_t strlen_constexpr(const char* str) {
+  // https://github.com/gcc-mirror/gcc/blob/5c7634a0e5f202935aa6c11b6ea953b8bf80a00a/libstdc%2B%2B-v3/include/bits/char_traits.h#L329
+  if (str != nullptr) {
+    std::size_t i = 0;
+    while (str[i] != '\0') {
+      ++i;
+    }
+
+    return i;
+  }
+
+  return 0;
+}
+
+constexpr inline int strncmp_constexpr(const char* lhs, const char* rhs, std::size_t count) {
+  // https://github.com/gcc-mirror/gcc/blob/13b9cbfc32fe3ac4c81c4dd9c42d141c8fb95db4/libstdc%2B%2B-v3/include/bits/char_traits.h#L655
+  if (lhs == nullptr || rhs == nullptr) {
+    return rhs != nullptr ? -1 : 1;
+  }
+
+  for (std::size_t i = 0; i < count; ++i) {
+    if (lhs[i] != rhs[i]) {
+      return lhs[i] < rhs[i] ? -1 : 1;
+    } else if (lhs[i] == '\0') {
+      return 0;
+    }
+  }
+
+  return 0;
+}
+
+constexpr inline const char* strstr_constexpr(const char* str, const char* target) {
+  // https://github.com/freebsd/freebsd/blob/master/sys/libkern/strstr.c
+  if (char c = target != nullptr ? *target++ : '\0'; c != '\0' && str != nullptr) {
+    std::size_t len = strlen_constexpr(target);
+    do {
+      char sc = {};
+      do {
+        if ((sc = *str++) == '\0') {
+          return nullptr;
+        }
+      } while (sc != c);
+    } while (strncmp_constexpr(str, target, len) != 0);
+    --str;
+  }
+
+  return str;
+}
+
+constexpr inline char* strstr_constexpr(char* str, const char* target) {
+  // https://github.com/freebsd/freebsd/blob/master/sys/libkern/strstr.c
+  if (char c = target != nullptr ? *target++ : '\0'; c != '\0' && str != nullptr) {
+    std::size_t len = strlen_constexpr(target);
+    do {
+      char sc = {};
+      do {
+        if ((sc = *str++) == '\0') {
+          return nullptr;
+        }
+      } while (sc != c);
+    } while (strncmp_constexpr(str, target, len) != 0);
+    --str;
+  }
+  return str;
+}

Marlin/src/HAL/NATIVE_SIM/MarlinSPI.h

@@ -0,0 +1,26 @@
+/**
+ * Marlin 3D Printer Firmware
+ *
+ * Copyright (c) 2021 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
+ * Copyright (c) 2016 Bob Cousins bobcousins42@googlemail.com
+ * Copyright (c) 2015-2016 Nico Tonnhofer wurstnase.reprap@gmail.com
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ *
+ */
+#pragma once
+
+#include <SPI.h>
+
+using MarlinSPI = SPIClass;

Marlin/src/HAL/NATIVE_SIM/fastio.h

@@ -0,0 +1,111 @@
+/**
+ * Marlin 3D Printer Firmware
+ * Copyright (c) 2021 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
+ *
+ * Based on Sprinter and grbl.
+ * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ *
+ */
+#pragma once
+
+/**
+ * Fast I/O Routines for X86_64
+ */
+
+#include "../shared/Marduino.h"
+#include <pinmapping.h>
+
+#define SET_DIR_INPUT(IO)     Gpio::setDir(IO, 1)
+#define SET_DIR_OUTPUT(IO)    Gpio::setDir(IO, 0)
+
+#define SET_MODE(IO, mode)    Gpio::setMode(IO, mode)
+
+#define WRITE_PIN_SET(IO)     Gpio::set(IO)
+#define WRITE_PIN_CLR(IO)     Gpio::clear(IO)
+
+#define READ_PIN(IO)          Gpio::get(IO)
+#define WRITE_PIN(IO,V)       Gpio::set(IO, V)
+
+/**
+ * Magic I/O routines
+ *
+ * Now you can simply SET_OUTPUT(STEP); WRITE(STEP, HIGH); WRITE(STEP, LOW);
+ *
+ * Why double up on these macros? see http://gcc.gnu.org/onlinedocs/cpp/Stringification.html
+ */
+
+/// Read a pin
+#define _READ(IO)             READ_PIN(IO)
+
+/// Write to a pin
+#define _WRITE(IO,V)          WRITE_PIN(IO,V)
+
+/// toggle a pin
+#define _TOGGLE(IO)          _WRITE(IO, !READ(IO))
+
+/// set pin as input
+#define _SET_INPUT(IO)        SET_DIR_INPUT(IO)
+
+/// set pin as output
+#define _SET_OUTPUT(IO)       SET_DIR_OUTPUT(IO)
+
+/// set pin as input with pullup mode
+#define _PULLUP(IO,V)         pinMode(IO, (V) ? INPUT_PULLUP : INPUT)
+
+/// set pin as input with pulldown mode
+#define _PULLDOWN(IO,V)       pinMode(IO, (V) ? INPUT_PULLDOWN : INPUT)
+
+// hg42: all pins can be input or output (I hope)
+// hg42: undefined pins create compile error (IO, is no pin)
+// hg42: currently not used, but was used by pinsDebug
+
+/// check if pin is an input
+#define _IS_INPUT(IO)         (IO >= 0)
+
+/// check if pin is an output
+#define _IS_OUTPUT(IO)        (IO >= 0)
+
+/// Read a pin wrapper
+#define READ(IO)             _READ(IO)
+
+/// Write to a pin wrapper
+#define WRITE(IO,V)          _WRITE(IO,V)
+
+/// toggle a pin wrapper
+#define TOGGLE(IO)           _TOGGLE(IO)
+
+/// set pin as input wrapper
+#define SET_INPUT(IO)        _SET_INPUT(IO)
+/// set pin as input with pullup wrapper
+#define SET_INPUT_PULLUP(IO)  do{ _SET_INPUT(IO); _PULLUP(IO, HIGH); }while(0)
+/// set pin as input with pulldown wrapper
+#define SET_INPUT_PULLDOWN(IO) do{ _SET_INPUT(IO); _PULLDOWN(IO, HIGH); }while(0)
+/// set pin as output wrapper  -  reads the pin and sets the output to that value
+#define SET_OUTPUT(IO)        do{ _WRITE(IO, _READ(IO)); _SET_OUTPUT(IO); }while(0)
+// set pin as PWM
+#define SET_PWM(IO)           SET_OUTPUT(IO)
+
+/// check if pin is an input wrapper
+#define IS_INPUT(IO)         _IS_INPUT(IO)
+/// check if pin is an output wrapper
+#define IS_OUTPUT(IO)        _IS_OUTPUT(IO)
+
+// Shorthand
+#define OUT_WRITE(IO,V)       do{ SET_OUTPUT(IO); WRITE(IO,V); }while(0)
+
+// digitalRead/Write wrappers
+#define extDigitalRead(IO)    digitalRead(IO)
+#define extDigitalWrite(IO,V) digitalWrite(IO,V)

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

@@ -0,0 +1,22 @@
+/**
+ * Marlin 3D Printer Firmware
+ * Copyright (c) 2021 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
+ *
+ * Based on Sprinter and grbl.
+ * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ *
+ */
+#pragma once

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

@@ -0,0 +1,31 @@
+/**
+ * Marlin 3D Printer Firmware
+ * Copyright (c) 2021 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
+ *
+ * Based on Sprinter and grbl.
+ * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ *
+ */
+#pragma once
+
+// Add strcmp_P if missing
+#ifndef strcmp_P
+  #define strcmp_P(a, b) strcmp((a), (b))
+#endif
+
+#ifndef strcat_P
+  #define strcat_P(dest, src) strcat((dest), (src))
+#endif

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

@@ -0,0 +1,22 @@
+/**
+ * Marlin 3D Printer Firmware
+ * Copyright (c) 2021 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
+ *
+ * Based on Sprinter and grbl.
+ * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ *
+ */
+#pragma once

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

@@ -0,0 +1,43 @@
+/**
+ * Marlin 3D Printer Firmware
+ * Copyright (c) 2021 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
+ *
+ * Based on Sprinter and grbl.
+ * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ *
+ */
+#pragma once
+
+/**
+ * Test X86_64-specific configuration values for errors at compile-time.
+ */
+
+// Emulating RAMPS
+#if ENABLED(SPINDLE_LASER_USE_PWM) && !(SPINDLE_LASER_PWM_PIN == 4 || SPINDLE_LASER_PWM_PIN == 6 || SPINDLE_LASER_PWM_PIN == 11)
+  #error "SPINDLE_LASER_PWM_PIN must use SERVO0, SERVO1 or SERVO3 connector"
+#endif
+
+#if ENABLED(FAST_PWM_FAN) || SPINDLE_LASER_FREQUENCY
+  #error "Features requiring Hardware PWM (FAST_PWM_FAN, SPINDLE_LASER_FREQUENCY) are not yet supported on LINUX."
+#endif
+
+#if HAS_TMC_SW_SERIAL
+  #error "TMC220x Software Serial is not supported on LINUX."
+#endif
+
+#if ENABLED(POSTMORTEM_DEBUGGING)
+  #error "POSTMORTEM_DEBUGGING is not yet supported on LINUX."
+#endif

Marlin/src/HAL/NATIVE_SIM/pinsDebug.h

@@ -0,0 +1,61 @@
+/**
+ * Marlin 3D Printer Firmware
+ * Copyright (c) 2021 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
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ *
+ */
+
+/**
+ * Support routines for X86_64
+ */
+#pragma once
+
+/**
+ * Translation of routines & variables used by pinsDebug.h
+ */
+
+#define NUMBER_PINS_TOTAL NUM_DIGITAL_PINS
+#define pwm_details(pin) pin = pin    // do nothing  // print PWM details
+#define pwm_status(pin) false //Print a pin's PWM status. Return true if it's currently a PWM pin.
+#define IS_ANALOG(P) (DIGITAL_PIN_TO_ANALOG_PIN(P) >= 0 ? 1 : 0)
+#define digitalRead_mod(p)  digitalRead(p)
+#define PRINT_PORT(p)
+#define GET_ARRAY_PIN(p) pin_array[p].pin
+#define PRINT_ARRAY_NAME(x) do{ sprintf_P(buffer, PSTR("%-" STRINGIFY(MAX_NAME_LENGTH) "s"), pin_array[x].name); SERIAL_ECHO(buffer); }while(0)
+#define PRINT_PIN(p) do{ sprintf_P(buffer, PSTR("%3d "), p); SERIAL_ECHO(buffer); }while(0)
+#define PRINT_PIN_ANALOG(p) do{ sprintf_P(buffer, PSTR(" (A%2d)  "), DIGITAL_PIN_TO_ANALOG_PIN(pin)); SERIAL_ECHO(buffer); }while(0)
+#define MULTI_NAME_PAD 16 // space needed to be pretty if not first name assigned to a pin
+
+// active ADC function/mode/code values for PINSEL registers
+inline constexpr int8_t ADC_pin_mode(pin_t pin) {
+  return (-1);
+}
+
+inline int8_t get_pin_mode(pin_t pin) {
+  if (!VALID_PIN(pin)) return -1;
+  return 0;
+}
+
+inline bool GET_PINMODE(pin_t pin) {
+  int8_t pin_mode = get_pin_mode(pin);
+  if (pin_mode == -1 || pin_mode == ADC_pin_mode(pin)) // found an invalid pin or active analog pin
+    return false;
+
+  return (Gpio::getMode(pin) != 0); //input/output state
+}
+
+inline bool GET_ARRAY_IS_DIGITAL(pin_t pin) {
+  return (!IS_ANALOG(pin) || get_pin_mode(pin) != ADC_pin_mode(pin));
+}

Marlin/src/HAL/NATIVE_SIM/servo_private.h

@@ -0,0 +1,80 @@
+/**
+ * Marlin 3D Printer Firmware
+ * Copyright (c) 2021 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
+ *
+ * Based on Sprinter and grbl.
+ * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ *
+ */
+#pragma once
+
+/**
+ * servo.h - Interrupt driven Servo library for Arduino using 16 bit timers- Version 2
+ * Copyright (c) 2009 Michael Margolis.  All right reserved.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library 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
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+ */
+
+/**
+ * Based on "servo.h - Interrupt driven Servo library for Arduino using 16 bit timers -
+ *           Version 2 Copyright (c) 2009 Michael Margolis.  All right reserved.
+ *
+ * The only modification was to update/delete macros to match the LPC176x.
+ *
+ */
+
+#include <stdint.h>
+
+// Macros
+//values in microseconds
+#define MIN_PULSE_WIDTH       544     // the shortest pulse sent to a servo
+#define MAX_PULSE_WIDTH      2400     // the longest pulse sent to a servo
+#define DEFAULT_PULSE_WIDTH  1500     // default pulse width when servo is attached
+#define REFRESH_INTERVAL    20000     // minimum time to refresh servos in microseconds
+
+#define MAX_SERVOS             4
+
+#define INVALID_SERVO         255     // flag indicating an invalid servo index
+
+
+// Types
+
+typedef struct {
+  uint8_t nbr        : 8 ;            // a pin number from 0 to 254 (255 signals invalid pin)
+  uint8_t isActive   : 1 ;            // true if this channel is enabled, pin not pulsed if false
+} ServoPin_t;
+
+typedef struct {
+  ServoPin_t Pin;
+  unsigned int pulse_width;           // pulse width in microseconds
+} ServoInfo_t;
+
+// Global variables
+
+extern uint8_t ServoCount;
+extern ServoInfo_t servo_info[MAX_SERVOS];

Marlin/src/HAL/NATIVE_SIM/spi_pins.h

@@ -0,0 +1,55 @@
+/**
+ * Marlin 3D Printer Firmware
+ * Copyright (c) 2021 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
+ *
+ * Based on Sprinter and grbl.
+ * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ *
+ */
+#pragma once
+
+#include "../../core/macros.h"
+#include "../../inc/MarlinConfigPre.h"
+
+#if BOTH(HAS_MARLINUI_U8GLIB, SDSUPPORT) && (LCD_PINS_D4 == SD_SCK_PIN || LCD_PINS_ENABLE == SD_MOSI_PIN || DOGLCD_SCK == SD_SCK_PIN || DOGLCD_MOSI == SD_MOSI_PIN)
+  #define LPC_SOFTWARE_SPI  // If the SD card and LCD adapter share the same SPI pins, then software SPI is currently
+                            // needed due to the speed and mode required for communicating with each device being different.
+                            // This requirement can be removed if the SPI access to these devices is updated to use
+                            // spiBeginTransaction.
+#endif
+
+// Onboard SD
+//#define SD_SCK_PIN     P0_07
+//#define SD_MISO_PIN    P0_08
+//#define SD_MOSI_PIN    P0_09
+//#define SD_SS_PIN      P0_06
+
+// External SD
+#ifndef SD_SCK_PIN
+  #define SD_SCK_PIN        50
+#endif
+#ifndef SD_MISO_PIN
+  #define SD_MISO_PIN       51
+#endif
+#ifndef SD_MOSI_PIN
+  #define SD_MOSI_PIN       52
+#endif
+#ifndef SD_SS_PIN
+  #define SD_SS_PIN         53
+#endif
+#ifndef SDSS
+  #define SDSS       SD_SS_PIN
+#endif

Marlin/src/HAL/NATIVE_SIM/tft/tft_spi.h

@@ -0,0 +1,64 @@
+/**
+ * Marlin 3D Printer Firmware
+ * Copyright (c) 2021 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
+ *
+ * Based on Sprinter and grbl.
+ * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ *
+ */
+#pragma once
+
+#include "../../../inc/MarlinConfig.h"
+
+#ifndef LCD_READ_ID
+  #define LCD_READ_ID  0x04   // Read display identification information (0xD3 on ILI9341)
+#endif
+#ifndef LCD_READ_ID4
+  #define LCD_READ_ID4 0xD3   // Read display identification information (0xD3 on ILI9341)
+#endif
+
+#define DATASIZE_8BIT    8
+#define DATASIZE_16BIT   16
+#define TFT_IO_DRIVER TFT_SPI
+
+#define DMA_MINC_ENABLE 1
+#define DMA_MINC_DISABLE 0
+
+class TFT_SPI {
+private:
+  static uint32_t ReadID(uint16_t Reg);
+  static void Transmit(uint16_t Data);
+  static void TransmitDMA(uint32_t MemoryIncrease, uint16_t *Data, uint16_t Count);
+
+public:
+  // static SPIClass SPIx;
+
+  static void Init();
+  static uint32_t GetID();
+  static bool isBusy();
+  static void Abort();
+
+  static void DataTransferBegin(uint16_t DataWidth = DATASIZE_16BIT);
+  static void DataTransferEnd();
+  static void DataTransferAbort();
+
+  static void WriteData(uint16_t Data);
+  static void WriteReg(uint16_t Reg);
+
+  static void WriteSequence(uint16_t *Data, uint16_t Count);
+  // static void WriteMultiple(uint16_t Color, uint16_t Count);
+  static void WriteMultiple(uint16_t Color, uint32_t Count);
+};

Marlin/src/HAL/NATIVE_SIM/tft/xpt2046.h

@@ -0,0 +1,80 @@
+/**
+ * Marlin 3D Printer Firmware
+ * Copyright (c) 2021 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
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ *
+ */
+#pragma once
+
+#include "../../../inc/MarlinConfig.h"
+
+#if ENABLED(TOUCH_BUTTONS_HW_SPI)
+  #include <SPI.h>
+#endif
+
+#ifndef TOUCH_MISO_PIN
+  #define TOUCH_MISO_PIN SD_MISO_PIN
+#endif
+#ifndef TOUCH_MOSI_PIN
+  #define TOUCH_MOSI_PIN SD_MOSI_PIN
+#endif
+#ifndef TOUCH_SCK_PIN
+  #define TOUCH_SCK_PIN  SD_SCK_PIN
+#endif
+#ifndef TOUCH_CS_PIN
+  #define TOUCH_CS_PIN   SD_SS_PIN
+#endif
+#ifndef TOUCH_INT_PIN
+  #define TOUCH_INT_PIN  -1
+#endif
+
+#define XPT2046_DFR_MODE        0x00
+#define XPT2046_SER_MODE        0x04
+#define XPT2046_CONTROL         0x80
+
+enum XPTCoordinate : uint8_t {
+  XPT2046_X  = 0x10 | XPT2046_CONTROL | XPT2046_DFR_MODE,
+  XPT2046_Y  = 0x50 | XPT2046_CONTROL | XPT2046_DFR_MODE,
+  XPT2046_Z1 = 0x30 | XPT2046_CONTROL | XPT2046_DFR_MODE,
+  XPT2046_Z2 = 0x40 | XPT2046_CONTROL | XPT2046_DFR_MODE,
+};
+
+#if !defined(XPT2046_Z1_THRESHOLD)
+  #define XPT2046_Z1_THRESHOLD 10
+#endif
+
+class XPT2046 {
+private:
+  static bool isBusy() { return false; }
+
+  static uint16_t getRawData(const XPTCoordinate coordinate);
+  static bool isTouched();
+
+  static inline void DataTransferBegin();
+  static inline void DataTransferEnd();
+  #if ENABLED(TOUCH_BUTTONS_HW_SPI)
+    static uint16_t HardwareIO(uint16_t data);
+  #endif
+  static uint16_t SoftwareIO(uint16_t data);
+  static uint16_t IO(uint16_t data = 0);
+
+public:
+  #if ENABLED(TOUCH_BUTTONS_HW_SPI)
+    static SPIClass SPIx;
+  #endif
+
+  static void Init();
+  static bool getRawPoint(int16_t *x, int16_t *y);
+};

Marlin/src/HAL/NATIVE_SIM/timers.h

@@ -0,0 +1,91 @@
+/**
+ * Marlin 3D Printer Firmware
+ *
+ * Copyright (c) 2021 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
+ * Copyright (c) 2016 Bob Cousins bobcousins42@googlemail.com
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ *
+ */
+#pragma once
+
+/**
+ * HAL timers for Linux X86_64
+ */
+
+#include <stdint.h>
+
+// ------------------------
+// Defines
+// ------------------------
+
+#define FORCE_INLINE __attribute__((always_inline)) inline
+
+typedef uint64_t hal_timer_t;
+#define HAL_TIMER_TYPE_MAX 0xFFFFFFFFFFFFFFFF
+
+#define HAL_TIMER_RATE         ((SystemCoreClock) / 4)  // frequency of timers peripherals
+
+#ifndef MF_TIMER_STEP
+  #define MF_TIMER_STEP         0  // Timer Index for Stepper
+#endif
+#ifndef MF_TIMER_PULSE
+  #define MF_TIMER_PULSE        MF_TIMER_STEP
+#endif
+#ifndef MF_TIMER_TEMP
+  #define MF_TIMER_TEMP         1  // Timer Index for Temperature
+#endif
+#ifndef MF_TIMER_SYSTICK
+  #define MF_TIMER_SYSTICK      2  // Timer Index for Systick
+#endif
+#define SYSTICK_TIMER_FREQUENCY 1000
+
+#define TEMP_TIMER_RATE        1000000
+#define TEMP_TIMER_FREQUENCY   1000 // temperature interrupt frequency
+
+#define STEPPER_TIMER_RATE     HAL_TIMER_RATE   // frequency of stepper timer (HAL_TIMER_RATE / STEPPER_TIMER_PRESCALE)
+#define STEPPER_TIMER_TICKS_PER_US ((STEPPER_TIMER_RATE) / 1000000) // stepper timer ticks per µs
+#define STEPPER_TIMER_PRESCALE (CYCLES_PER_MICROSECOND / STEPPER_TIMER_TICKS_PER_US)
+
+#define PULSE_TIMER_RATE       STEPPER_TIMER_RATE   // frequency of pulse timer
+#define PULSE_TIMER_PRESCALE   STEPPER_TIMER_PRESCALE
+#define PULSE_TIMER_TICKS_PER_US STEPPER_TIMER_TICKS_PER_US
+
+#define ENABLE_STEPPER_DRIVER_INTERRUPT() HAL_timer_enable_interrupt(MF_TIMER_STEP)
+#define DISABLE_STEPPER_DRIVER_INTERRUPT() HAL_timer_disable_interrupt(MF_TIMER_STEP)
+#define STEPPER_ISR_ENABLED() HAL_timer_interrupt_enabled(MF_TIMER_STEP)
+
+#define ENABLE_TEMPERATURE_INTERRUPT() HAL_timer_enable_interrupt(MF_TIMER_TEMP)
+#define DISABLE_TEMPERATURE_INTERRUPT() HAL_timer_disable_interrupt(MF_TIMER_TEMP)
+
+#ifndef HAL_STEP_TIMER_ISR
+  #define HAL_STEP_TIMER_ISR()  extern "C" void TIMER0_IRQHandler()
+#endif
+#ifndef HAL_TEMP_TIMER_ISR
+  #define HAL_TEMP_TIMER_ISR()  extern "C" void TIMER1_IRQHandler()
+#endif
+
+void HAL_timer_init();
+void HAL_timer_start(const uint8_t timer_num, const uint32_t frequency);
+
+void HAL_timer_set_compare(const uint8_t timer_num, const hal_timer_t compare);
+hal_timer_t HAL_timer_get_compare(const uint8_t timer_num);
+hal_timer_t HAL_timer_get_count(const uint8_t timer_num);
+
+void HAL_timer_enable_interrupt(const uint8_t timer_num);
+void HAL_timer_disable_interrupt(const uint8_t timer_num);
+bool HAL_timer_interrupt_enabled(const uint8_t timer_num);
+
+#define HAL_timer_isr_prologue(T)
+#define HAL_timer_isr_epilogue(T)

Marlin/src/HAL/NATIVE_SIM/u8g/LCD_I2C_routines.cpp

@@ -0,0 +1,52 @@
+/**
+ * Marlin 3D Printer Firmware
+ * Copyright (c) 2021 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
+ *
+ * Based on Sprinter and grbl.
+ * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ *
+ */
+
+// adapted from  I2C/master/master.c example
+//   https://www-users.cs.york.ac.uk/~pcc/MCP/HAPR-Course-web/CMSIS/examples/html/master_8c_source.html
+
+#ifdef __PLAT_NATIVE_SIM__
+
+#include <cstdint>
+
+#ifdef __cplusplus
+  extern "C" {
+#endif
+
+uint8_t u8g_i2c_start(const uint8_t sla) {
+  return 1;
+}
+
+void u8g_i2c_init(const uint8_t clock_option) {
+}
+
+uint8_t u8g_i2c_send_byte(uint8_t data) {
+  return 1;
+}
+
+void u8g_i2c_stop() {
+}
+
+#ifdef __cplusplus
+  }
+#endif
+
+#endif // __PLAT_NATIVE_SIM__

Marlin/src/HAL/NATIVE_SIM/u8g/LCD_I2C_routines.h

@@ -0,0 +1,37 @@
+/**
+ * Marlin 3D Printer Firmware
+ * Copyright (c) 2021 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
+ *
+ * Based on Sprinter and grbl.
+ * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ *
+ */
+#pragma once
+
+#ifdef __cplusplus
+  extern "C" {
+#endif
+
+void u8g_i2c_init(const uint8_t clock_options);
+//uint8_t u8g_i2c_wait(uint8_t mask, uint8_t pos);
+uint8_t u8g_i2c_start(uint8_t sla);
+uint8_t u8g_i2c_send_byte(uint8_t data);
+void u8g_i2c_stop();
+
+#ifdef __cplusplus
+  }
+#endif
+

Marlin/src/HAL/NATIVE_SIM/u8g/LCD_defines.h

@@ -0,0 +1,44 @@
+/**
+ * Marlin 3D Printer Firmware
+ * Copyright (c) 2021 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
+ *
+ * Based on Sprinter and grbl.
+ * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ *
+ */
+#pragma once
+
+void usleep(uint64_t microsec);
+// The following are optional depending on the platform.
+
+// definitions of HAL specific com and device drivers.
+uint8_t u8g_com_sw_spi_fn(u8g_t *u8g, uint8_t msg, uint8_t arg_val, void *arg_ptr);
+uint8_t u8g_com_ST7920_sw_spi_fn(u8g_t *u8g, uint8_t msg, uint8_t arg_val, void *arg_ptr);
+
+// connect U8g com generic com names to the desired driver
+#define U8G_COM_SW_SPI u8g_com_sw_spi_fn
+#define U8G_COM_ST7920_SW_SPI u8g_com_ST7920_sw_spi_fn
+
+// let these default for now
+#define U8G_COM_HW_SPI u8g_com_null_fn
+#define U8G_COM_ST7920_HW_SPI u8g_com_null_fn
+#define U8G_COM_SSD_I2C u8g_com_null_fn
+#define U8G_COM_PARALLEL u8g_com_null_fn
+#define U8G_COM_T6963 u8g_com_null_fn
+#define U8G_COM_FAST_PARALLEL u8g_com_null_fn
+#define U8G_COM_UC_I2C u8g_com_null_fn
+
+

Marlin/src/HAL/NATIVE_SIM/u8g/LCD_delay.h

@@ -0,0 +1,43 @@
+/**
+ * Marlin 3D Printer Firmware
+ * Copyright (c) 2021 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
+ *
+ * Based on Sprinter and grbl.
+ * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ *
+ */
+#pragma once
+
+/**
+ * LCD delay routines - used by all the drivers.
+ *
+ * These are based on the LPC1768 routines.
+ *
+ * Couldn't just call exact copies because the overhead
+ * results in a one microsecond delay taking about 4µS.
+ */
+
+#ifdef __cplusplus
+  extern "C" {
+#endif
+
+void U8g_delay(int msec);
+void u8g_MicroDelay();
+void u8g_10MicroDelay();
+
+#ifdef __cplusplus
+  }
+#endif