Add NUCLEO-F767ZI dev board (#19373)

Co-authored-by: Lorenzo Delana <lorenzo.delana@gmail.com>

Marlin/src/HAL/shared/backtrace/unwmemaccess.cpp

@@ -85,7 +85,7 @@
   #define START_FLASH_ADDR  0x08000000
   #define END_FLASH_ADDR    0x08100000
 
-#elif MB(REMRAM_V1)
+#elif MB(REMRAM_V1, NUCLEO_F767ZI)
 
   // For STM32F765VI in RemRam v1
   //  SRAM  (0x20000000 - 0x20080000) (512kb)

Marlin/src/core/boards.h

@@ -363,6 +363,7 @@
 #define BOARD_REMRAM_V1               5001  // RemRam v1
 #define BOARD_TEENSY41                5002  // Teensy 4.1
 #define BOARD_T41U5XBB                5003  // T41U5XBB Teensy 4.1 breakout board
+#define BOARD_NUCLEO_F767ZI           5004  // ST NUCLEO-F767ZI Dev Board
 
 //
 // Espressif ESP32 WiFi

Marlin/src/pins/pins.h

@@ -634,6 +634,8 @@
   #include "stm32f7/pins_THE_BORG.h"            // STM32F7                                env:STM32F7
 #elif MB(REMRAM_V1)
   #include "stm32f7/pins_REMRAM_V1.h"           // STM32F7                                env:STM32F7
+#elif MB(NUCLEO_F767ZI)
+  #include "stm32f7/pins_NUCLEO_F767ZI.h"       // STM32F7                                env:NUCLEO_F767ZI
 #elif MB(TEENSY41)
   #include "teensy4/pins_TEENSY41.h"            // Teensy-4.x                             env:teensy41
 #elif MB(T41U5XBB)

Marlin/src/pins/stm32f7/pins_NUCLEO_F767ZI.h

@@ -0,0 +1,201 @@
+/**
+ * Marlin 3D Printer Firmware
+ * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
+ *
+ * Based on Sprinter and grbl.
+ * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ *
+ */
+#pragma once
+
+#ifndef STM32F767xx
+  #error "Oops! Select an STM32F767 environment"
+#endif
+
+#define BOARD_INFO_NAME      "NUCLEO-F767ZI"
+#define DEFAULT_MACHINE_NAME "Prototype Board"
+
+#if NO_EEPROM_SELECTED
+  #define FLASH_EEPROM_EMULATION                  // Use Flash-based EEPROM emulation
+#endif
+
+#if ENABLED(FLASH_EEPROM_EMULATION)
+  // Decrease delays and flash wear by spreading writes across the
+  // 128 kB sector allocated for EEPROM emulation.
+  // Not yet supported on F7 hardware
+  // #define FLASH_EEPROM_LEVELING
+#endif
+
+/**
+ * Timer assignments
+ * 
+ * TIM1 -
+ * TIM2 - Hardware PWM (Fan/Heater Pins)
+ * TIM3 - Hardware PWM (Servo Pins)
+ * TIM4 - STEP_TIMER (Marlin)
+ * TIM5 -
+ * TIM6 - TIMER_TONE (variant.h)
+ * TIM7 - TIMER_SERVO (variant.h)
+ * TIM9 - TIMER_SERIAL (platformio.ini)
+ * TIM10 - For some reason trips Watchdog when used for SW Serial
+ * TIM11 -
+ * TIM12 -
+ * TIM13 -
+ * TIM14 - TEMP_TIMER (Marlin)
+ * 
+ */
+#define STEP_TIMER 4
+#define TEMP_TIMER 14
+
+
+/**
+ * These pin assignments are arbitrary and intending for testing purposes.
+ * Assignments may not be ideal, and not every assignment has been tested.
+ * Proceed at your own risk.
+ *                                                            _CN7_
+ *                                              (X_STEP) PC6 | · · | PB8 (X_EN) 
+ *                                              (X_DIR) PB15 | · · | PB9 (X_CS)
+ *                                             (LCD_D4) PB13 | · · | AVDD
+ *                 _CN8_                                PB12 | · · | GND
+ *             NC | · · | PC8                (HEATER_0) PA15 | · · | PA5  (SCLK)
+ *          IOREF | · · | PC9                   (BEEPER) PC7 | · · | PA6  (MISO)
+ *          RESET | · · | PC10              (SERVO1_PIN) PB5 | · · | PA7  (MOSI)
+ *          +3.3V | · · | PC11              (HEATER_BED) PB3 | · · | PD14 (SD_DETECT)
+ *            +5V | · · | PC12                    (SDSS) PA4 | · · | PD15 (LCD_ENABLE)
+ *            GND | · · | PD2               (SERVO0_PIN) PB4 | · · | PF12 (LCD_RS)
+ *            GND | · · | PG2                                 ￣￣￣
+ *            VIN | · · | PG3                                 
+_*                 ￣￣￣                                      _CN10
+ *                                                      AVDD | · · | PF13 (BTN_EN1)
+ *                 _CN9_                                AGND | · · | PE9  (BTN_EN2)
+ *   (TEMP_0) PA3 | · · | PD7                            GND | · · | PE11 (BTN_ENC)
+ * (TEMP_BED) PC0 | · · | PD6                            PB1 | · · | PF14
+ *            PC3 | · · | PD5                            PC2 | · · | PE13
+ *            PF3 | · · | PD4                            PF4 | · · | PF15
+ *            PF5 | · · | PD3                   (E_STEP) PB6 | · · | PG14 (E_EN)
+ *           PF10 | · · | GND                    (E_DIR) PB2 | · · | PG9  (E_CS)
+ *             NC | · · | PE2                            GND | · · | PE8
+ *            PA7 | · · | PE4                           PD13 | · · | PE7
+ *            PF2 | · · | PE5                           PD12 | · · | GND
+ *   (Y_STEP) PF1 | · · | PE6 (Y_EN)           (Z_STEP) PD11 | · · | PE10 (Z_EN)
+ *    (Y_DIR) PF0 | · · | PE3 (Y_CS)             (Z_DIR) PE2 | · · | PE12 (Z_CS)
+ *            GND | · · | PF8                            GND | · · | PE14
+ *    (Z_MAX) PD0 | · · | PF7 (X_MIN)                    PA0 | · · | PE15
+ *    (Z_MIN) PD1 | · · | PF9 (X_MAX)                    PB0 | · · | PB10 (FAN)
+ *    (Y_MAX) PG0 | · · | PG1 (Y_MIN)                    PE0 | · · | PB11 (FAN1)
+ *                 ￣￣￣                                     ￣￣￣￣
+ */
+
+#define X_MIN_PIN                           PF7
+#define X_MAX_PIN                           PF9
+#define Y_MIN_PIN                           PG1
+#define Y_MAX_PIN                           PG0
+#define Z_MIN_PIN                           PD1
+#define Z_MAX_PIN                           PD0
+
+//
+// Steppers
+//
+#define X_STEP_PIN                          PC6
+#define X_DIR_PIN                           PB15
+#define X_ENABLE_PIN                        PB8
+#define X_CS_PIN                            PB9
+
+#define Y_STEP_PIN                          PF1
+#define Y_DIR_PIN                           PF0
+#define Y_ENABLE_PIN                        PE6
+#define Y_CS_PIN                            PE3
+
+#define Z_STEP_PIN                          PD11
+#define Z_DIR_PIN                           PE2
+#define Z_ENABLE_PIN                        PE10
+#define Z_CS_PIN                            PE12
+
+#define E0_STEP_PIN                         PB6
+#define E0_DIR_PIN                          PB2
+#define E0_ENABLE_PIN                       PG14
+#define E0_CS_PIN                           PG9
+
+#if HAS_TMC_UART
+  #define X_SERIAL_TX_PIN                   PB9
+  #define X_SERIAL_RX_PIN                   PB9
+
+  #define Y_SERIAL_TX_PIN                   PE3
+  #define Y_SERIAL_RX_PIN                   PE3
+
+  #define Z_SERIAL_TX_PIN                   PE12
+  #define Z_SERIAL_RX_PIN                   PE12
+
+  #define E_SERIAL_TX_PIN                   PG9
+  #define E_SERIAL_RX_PIN                   PG9      
+#endif
+
+//
+// Temperature Sensors
+//
+#define TEMP_0_PIN                          PA3
+#define TEMP_BED_PIN                        PC0
+
+//
+// Heaters / Fans
+//
+#define HEATER_0_PIN                        PA15 // PWM Capable, TIM2_CH1
+#define HEATER_BED_PIN                      PB3  // PWM Capable, TIM2_CH2
+
+#ifndef FAN_PIN
+  #define FAN_PIN                           PB10 // PWM Capable, TIM2_CH3
+#endif
+#define FAN1_PIN                            PB11 // PWM Capable, TIM2_CH4
+
+#ifndef E0_AUTO_FAN_PIN
+  #define E0_AUTO_FAN_PIN               FAN1_PIN
+#endif
+
+//
+// Servos
+//
+#define SERVO0_PIN                          PB4 // PWM Capable, TIM3_CH1
+#define SERVO1_PIN                          PB5 // PWM Capable, TIM3_CH2
+
+// SPI for external SD Card (Not entirely sure this will work)
+#define SCK_PIN                             PA5
+#define MISO_PIN                            PA6
+#define MOSI_PIN                            PA7
+#define SS_PIN                              PA4
+#define SDSS                                PA4
+
+#define LED_PIN                             LED_BLUE
+
+//
+// LCD / Controller
+//
+#if ENABLED(REPRAP_DISCOUNT_FULL_GRAPHIC_SMART_CONTROLLER)
+  #define BEEPER_PIN                        PC7  // LCD_BEEPER
+  #define BTN_ENC                           PE11  // BTN_ENC
+  #define SD_DETECT_PIN                     PD14
+  #define LCD_PINS_RS                       PF12  // LCD_RS
+  #define LCD_PINS_ENABLE                   PD15  // LCD_EN
+  #define LCD_PINS_D4                       PB13  // LCD_D4
+  // #define LCD_PINS_D5
+  // #define LCD_PINS_D6
+  // #define LCD_PINS_D7
+  #define BTN_EN1                           PF13  // BTN_EN1
+  #define BTN_EN2                           PE9  // BTN_EN2
+
+  #define BOARD_ST7920_DELAY_1  DELAY_NS(125)
+  #define BOARD_ST7920_DELAY_2  DELAY_NS(63)
+  #define BOARD_ST7920_DELAY_3  DELAY_NS(780)
+#endif

platformio.ini

@@ -857,6 +857,17 @@ build_flags   = ${common.build_flags} -DUSE_STM32GENERIC -DSTM32GENERIC -DSTM32F
 src_filter    = ${common.default_src_filter} +<src/HAL/STM32_F4_F7> -<src/HAL/STM32_F4_F7/STM32F4>
 
 #
+# ST NUCLEO-F767ZI Development Board
+# This environment is for testing purposes prior to control boards
+# being readily available based on STM32F7 MCUs
+#
+[env:NUCLEO_F767ZI]
+platform      = ${common_stm32.platform}
+extends       = common_stm32
+board         = nucleo_f767zi
+build_flags   = ${common_stm32.build_flags} -DTIMER_SERIAL=TIM9
+
+#
 # ARMED (STM32)
 #
 [env:ARMED]