text: /**
   * 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 TARGET_STM32F1
    #error "Oops! Select an STM32F1 board in 'Tools > Board.'"
  #endif
  
  #define BOARD_INFO_NAME "BTT SKR E3 DIP V1.0"
  
  // Release PB3/PB4 (TMC_SW Pins) from JTAG pins
  #define DISABLE_JTAG
  
  // Ignore temp readings during development.
  //#define BOGUS_TEMPERATURE_GRACE_PERIOD    2000
  
  #if EITHER(NO_EEPROM_SELECTED, FLASH_EEPROM_EMULATION)
    #define FLASH_EEPROM_EMULATION
    #define EEPROM_PAGE_SIZE     (0x800U)           // 2KB
    #define EEPROM_START_ADDRESS (0x8000000UL + (STM32_FLASH_SIZE) * 1024UL - (EEPROM_PAGE_SIZE) * 2UL)
    #define MARLIN_EEPROM_SIZE    EEPROM_PAGE_SIZE  // 2KB
  #endif
  
  //
  // Servos
  //
  #define SERVO0_PIN                          PA1   // SERVOS
  
  //
  // Limit Switches
  //
  #define X_STOP_PIN                          PC1   // "X-STOP"
  #define Y_STOP_PIN                          PC0   // "Y-STOP"
  #define Z_STOP_PIN                          PC15  // "Z-STOP"
  
  //
  // Z Probe must be this pin
  //
  #define Z_MIN_PROBE_PIN                     PC14  // "PROBE"
  
  //
  // Filament Runout Sensor
  //
  #ifndef FIL_RUNOUT_PIN
    #define FIL_RUNOUT_PIN                    PC2   // "E0-STOP"
  #endif
  
  //
  // Steppers
  //
  #define X_ENABLE_PIN                        PC7
  #define X_STEP_PIN                          PC6
  #define X_DIR_PIN                           PB15
  #ifndef X_CS_PIN
    #define X_CS_PIN                          PC10
  #endif
  
  #define Y_ENABLE_PIN                        PB14
  #define Y_STEP_PIN                          PB13
  #define Y_DIR_PIN                           PB12
  #ifndef Y_CS_PIN
    #define Y_CS_PIN                          PC11
  #endif
  
  #define Z_ENABLE_PIN                        PB11
  #define Z_STEP_PIN                          PB10
  #define Z_DIR_PIN                           PB2
  #ifndef Z_CS_PIN
    #define Z_CS_PIN                          PC12
  #endif
  
  #define E0_ENABLE_PIN                       PB1
  #define E0_STEP_PIN                         PB0
  #define E0_DIR_PIN                          PC5
  #ifndef E0_CS_PIN
    #define E0_CS_PIN                         PD2
  #endif
  
  //
  // Software SPI pins for TMC2130 stepper drivers
  //
  #if ENABLED(TMC_USE_SW_SPI)
    #ifndef TMC_SW_MOSI
      #define TMC_SW_MOSI                     PB5
    #endif
    #ifndef TMC_SW_MISO
      #define TMC_SW_MISO                     PB4
    #endif
    #ifndef TMC_SW_SCK
      #define TMC_SW_SCK                      PB3
    #endif
  #endif
  
  #if HAS_TMC_UART
    /**
     * TMC2208/TMC2209 stepper drivers
     *
     * Hardware serial communication ports.
     * If undefined software serial is used according to the pins below
     */
    //#define X_HARDWARE_SERIAL  Serial1
    //#define Y_HARDWARE_SERIAL  Serial1
    //#define Z_HARDWARE_SERIAL  Serial1
    //#define E0_HARDWARE_SERIAL Serial1
  
    //
    // Software serial
    //
    #define X_SERIAL_TX_PIN                   PC10
    #define X_SERIAL_RX_PIN                   PC10
  
    #define Y_SERIAL_TX_PIN                   PC11
    #define Y_SERIAL_RX_PIN                   PC11
  
    #define Z_SERIAL_TX_PIN                   PC12
    #define Z_SERIAL_RX_PIN                   PC12
  
    #define E0_SERIAL_TX_PIN                  PD2
    #define E0_SERIAL_RX_PIN                  PD2
  
    // Reduce baud rate to improve software serial reliability
    #define TMC_BAUD_RATE                    19200
  #endif
  
  //
  // Temperature Sensors
  //
  #define TEMP_0_PIN                          PA0   // Analog Input "TH0"
  #define TEMP_BED_PIN                        PC3   // Analog Input "TB0"
  
  //
  // Heaters / Fans
  //
  #define HEATER_0_PIN                        PC8   // "HE"
  #define HEATER_BED_PIN                      PC9   // "HB"
  #define FAN_PIN                             PA8   // "FAN0"
  
  //
  // USB connect control
  //
  #define USB_CONNECT_PIN                     PC13
  #define USB_CONNECT_INVERTING              false
  
  /**
   *                 _____
   *             5V | 1 2 | GND
   *  (LCD_EN) PB7  | 3 4 | PB8  (LCD_RS)
   *  (LCD_D4) PB9  | 5 6   PA10 (BTN_EN2)
   *          RESET | 7 8 | PA9  (BTN_EN1)
   * (BTN_ENC) PB6  | 9 10| PA15 (BEEPER)
   *                 -----
   *                 EXP1
   */
  
  #if HAS_SPI_LCD
  
    #if ENABLED(CR10_STOCKDISPLAY)
  
      #define BEEPER_PIN                      PA15
  
      #define BTN_ENC                         PB6
      #define BTN_EN1                         PA9
      #define BTN_EN2                         PA10
  
      #define LCD_PINS_RS                     PB8
      #define LCD_PINS_ENABLE                 PB7
      #define LCD_PINS_D4                     PB9
  
    #elif ENABLED(ZONESTAR_LCD)                     // ANET A8 LCD Controller - Must convert to 3.3V - CONNECTING TO 5V WILL DAMAGE THE BOARD!
  
      #error "CAUTION! ZONESTAR_LCD requires wiring modifications. See 'pins_BTT_SKR_MINI_E3_common.h' for details. Comment out this line to continue."
  
      #define LCD_PINS_RS                     PB9
      #define LCD_PINS_ENABLE                 PB6
      #define LCD_PINS_D4                     PB8
      #define LCD_PINS_D5                     PA10
      #define LCD_PINS_D6                     PA9
      #define LCD_PINS_D7                     PA15
      #define ADC_KEYPAD_PIN                  PA1   // Repurpose servo pin for ADC - CONNECTING TO 5V WILL DAMAGE THE BOARD!
  
    #elif EITHER(MKS_MINI_12864, ENDER2_STOCKDISPLAY)
  
      /** Creality Ender-2 display pinout
       *                   _____
       *               5V | 1 2 | GND
       *      (MOSI) PB7  | 3 4 | PB8  (LCD_RS)
       *    (LCD_A0) PB9  | 5 6   PA10 (BTN_EN2)
       *            RESET | 7 8 | PA9  (BTN_EN1)
       *   (BTN_ENC) PB6  | 9 10| PA15 (SCK)
       *                   -----
       *                    EXP1
       */
  
      #define BTN_ENC                         PB6
      #define BTN_EN1                         PA9
      #define BTN_EN2                         PA10
  
      #define DOGLCD_CS                       PB8
      #define DOGLCD_A0                       PB9
      #define DOGLCD_SCK                      PA15
      #define DOGLCD_MOSI                     PB7
      #define FORCE_SOFT_SPI
      #define LCD_BACKLIGHT_PIN               -1
  
    #else
      #error "Only CR10_STOCKDISPLAY, ZONESTAR_LCD, ENDER2_STOCKDISPLAY, MKS_MINI_12864, and MKS_LCD12864 are currently supported on the BIGTREE_SKR_E3_DIP."
    #endif
  
  #endif // HAS_SPI_LCD
  
  #if BOTH(TOUCH_UI_FTDI_EVE, LCD_FYSETC_TFT81050)
  
    #error "CAUTION! LCD_FYSETC_TFT81050 requires wiring modifications. See 'pins_BTT_SKR_E3_DIP.h' for details. Comment out this line to continue."
  
    /** FYSETC TFT TFT81050 display pinout
     *
     *               Board                                     Display
     *               _____                                      _____
     *           5V | 1 2 | GND               (SPI1-MISO) MISO | 1 2 | SCK   (SPI1-SCK)
     * (FREE)   PB7 | 3 4 | PB8  (LCD_CS)     (PA9)  MOD_RESET | 3 4 | SD_CS (PA10)
     * (FREE)   PB9 | 5 6   PA10 (SD_CS)      (PB8)     LCD_CS | 5 6   MOSI  (SPI1-MOSI)
     *        RESET | 7 8 | PA9  (MOD_RESET)  (PA15)    SD_DET | 7 8 | RESET
     * (BEEPER) PB6 | 9 10| PA15 (SD_DET)                  GND | 9 10| 5V
     *               -----                                      -----
     *                EXP1                                       EXP1
     *
     * Needs custom cable:
     *
     *    Board   Adapter   Display
     *           _________
     *   EXP1-1 ----------- EXP1-10
     *   EXP1-2 ----------- EXP1-9
     *   SPI1-4 ----------- EXP1-6
     *   EXP1-4 ----------- EXP1-5
     *   SP11-3 ----------- EXP1-2
     *   EXP1-6 ----------- EXP1-4
     *   EXP1-7 ----------- EXP1-8
     *   EXP1-8 ----------- EXP1-3
     *   SPI1-1 ----------- EXP1-1
     *  EXP1-10 ----------- EXP1-7
     *
     */
  
    #define CLCD_SPI_BUS                         1  // SPI1 connector
  
    #define BEEPER_PIN                        PB6
  
    #define CLCD_MOD_RESET                    PA9
    #define CLCD_SPI_CS                       PA8
  
  #endif // TOUCH_UI_FTDI_EVE && LCD_FYSETC_TFT81050
  
  //
  // SD Support
  //
  
  #ifndef SDCARD_CONNECTION
    #define SDCARD_CONNECTION              ONBOARD
  #endif
  
  #if SD_CONNECTION_IS(ONBOARD)
    #define SD_DETECT_PIN                     PC4
  #endif
  
  #if BOTH(TOUCH_UI_FTDI_EVE, LCD_FYSETC_TFT81050) && SD_CONNECTION_IS(LCD)
    #define SD_DETECT_PIN                     PA15
    #define SS_PIN                            PA10
  #elif SD_CONNECTION_IS(CUSTOM_CABLE)
    #error "SD CUSTOM_CABLE is not compatible with SKR E3 DIP."
  #endif
  
  #define ON_BOARD_SPI_DEVICE                    1  // SPI1
  #define ONBOARD_SD_CS_PIN                   PA4   // Chip select for "System" SD card
  