marlin/buildroot/share/PlatformIO/variants/MARLIN_F401RC/variant_MARLIN_STM32F401RC.h

/*
 *******************************************************************************
 * Copyright (c) 2020-2021, STMicroelectronics
 * All rights reserved.
 *
 * This software component is licensed by ST under BSD 3-Clause license,
 * the "License"; You may not use this file except in compliance with the
 * License. You may obtain a copy of the License at:
 *                        opensource.org/licenses/BSD-3-Clause
 *
 *******************************************************************************
 */
#pragma once

/*----------------------------------------------------------------------------
 *        STM32 pins number
 *----------------------------------------------------------------------------*/
#define PA0                     PIN_A0
#define PA1                     PIN_A1
#define PA2                     PIN_A2
#define PA3                     PIN_A3
#define PA4                     PIN_A4
#define PA5                     PIN_A5
#define PA6                     PIN_A6
#define PA7                     PIN_A7
#define PA8                     8
#define PA9                     9
#define PA10                    10
#define PA11                    11
#define PA12                    12
#define PA13                    13
#define PA14                    14
#define PA15                    15
#define PB0                     PIN_A8
#define PB1                     PIN_A9
#define PB2                     18
#define PB3                     19
#define PB4                     20
#define PB5                     21
#define PB6                     22
#define PB7                     23
#define PB8                     24
#define PB9                     25
#define PB10                    26
#define PB12                    27
#define PB13                    28
#define PB14                    29
#define PB15                    30
#define PC0                     PIN_A10
#define PC1                     PIN_A11
#define PC2                     PIN_A12
#define PC3                     PIN_A13
#define PC4                     PIN_A14
#define PC5                     PIN_A15
#define PC6                     37
#define PC7                     38
#define PC8                     39
#define PC9                     40
#define PC10                    41
#define PC11                    42
#define PC12                    43
#define PC13                    44
#define PC14                    45
#define PC15                    46
#define PD2                     47
#define PH0                     48
#define PH1                     49

// Alternate pins number
#define PA0_ALT1                (PA0  | ALT1)
#define PA1_ALT1                (PA1  | ALT1)
#define PA2_ALT1                (PA2  | ALT1)
#define PA2_ALT2                (PA2  | ALT2)
#define PA3_ALT1                (PA3  | ALT1)
#define PA3_ALT2                (PA3  | ALT2)
#define PA4_ALT1                (PA4  | ALT1)
#define PA7_ALT1                (PA7  | ALT1)
#define PA15_ALT1               (PA15 | ALT1)
#define PB0_ALT1                (PB0  | ALT1)
#define PB1_ALT1                (PB1  | ALT1)
#define PB3_ALT1                (PB3  | ALT1)
#define PB4_ALT1                (PB4  | ALT1)
#define PB5_ALT1                (PB5  | ALT1)
#define PB8_ALT1                (PB8  | ALT1)
#define PB9_ALT1                (PB9  | ALT1)

#define NUM_DIGITAL_PINS        50
#define NUM_ANALOG_INPUTS       16
#define NUM_ANALOG_FIRST        192

// On-board LED pin number
#ifndef LED_BUILTIN
  #define LED_BUILTIN           PNUM_NOT_DEFINED
#endif

// On-board user button
#ifndef USER_BTN
  #define USER_BTN              PNUM_NOT_DEFINED
#endif

// SPI definitions
#ifndef PIN_SPI_SS
  #define PIN_SPI_SS            PA4
#endif
#ifndef PIN_SPI_SS1
  #define PIN_SPI_SS1           PA15
#endif
#ifndef PIN_SPI_SS2
  #define PIN_SPI_SS2           PNUM_NOT_DEFINED
#endif
#ifndef PIN_SPI_SS3
  #define PIN_SPI_SS3           PNUM_NOT_DEFINED
#endif
#ifndef PIN_SPI_MOSI
  #define PIN_SPI_MOSI          PA7
#endif
#ifndef PIN_SPI_MISO
  #define PIN_SPI_MISO          PA6
#endif
#ifndef PIN_SPI_SCK
  #define PIN_SPI_SCK           PA5
#endif

// I2C definitions
#ifndef PIN_WIRE_SDA
  #define PIN_WIRE_SDA          PB3
#endif
#ifndef PIN_WIRE_SCL
  #define PIN_WIRE_SCL          PB10
#endif

// Timer Definitions
// Use TIM6/TIM7 when possible as servo and tone don't need GPIO output pin
#ifndef TIMER_TONE
  #define TIMER_TONE            TIM10
#endif
#ifndef TIMER_SERVO
  #define TIMER_SERVO           TIM11
#endif

// UART Definitions
#ifndef SERIAL_UART_INSTANCE
  #define SERIAL_UART_INSTANCE  2
#endif

// Default pin used for generic 'Serial' instance
// Mandatory for Firmata
#ifndef PIN_SERIAL_RX
  #define PIN_SERIAL_RX         PA3
#endif
#ifndef PIN_SERIAL_TX
  #define PIN_SERIAL_TX         PA2
#endif

// Extra HAL modules
#if !defined(HAL_SD_MODULE_DISABLED)
  #define HAL_SD_MODULE_ENABLED
#endif

/*----------------------------------------------------------------------------
 *        Arduino objects - C++ only
 *----------------------------------------------------------------------------*/

#ifdef __cplusplus
  // These serial port names are intended to allow libraries and architecture-neutral
  // sketches to automatically default to the correct port name for a particular type
  // of use.  For example, a GPS module would normally connect to SERIAL_PORT_HARDWARE_OPEN,
  // the first hardware serial port whose RX/TX pins are not dedicated to another use.
  //
  // SERIAL_PORT_MONITOR        Port which normally prints to the Arduino Serial Monitor
  //
  // SERIAL_PORT_USBVIRTUAL     Port which is USB virtual serial
  //
  // SERIAL_PORT_LINUXBRIDGE    Port which connects to a Linux system via Bridge library
  //
  // SERIAL_PORT_HARDWARE       Hardware serial port, physical RX & TX pins.
  //
  // SERIAL_PORT_HARDWARE_OPEN  Hardware serial ports which are open for use.  Their RX & TX
  //                            pins are NOT connected to anything by default.
  #ifndef SERIAL_PORT_MONITOR
    #define SERIAL_PORT_MONITOR   Serial
  #endif
  #ifndef SERIAL_PORT_HARDWARE
    #define SERIAL_PORT_HARDWARE  Serial
  #endif
#endif