text: /**
   * 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
  
  #if NOT_TARGET(STM32F4)
    #error "Oops! Select an STM32F4 board in 'Tools > Board.'"
  #endif
  
  #ifndef BOARD_INFO_NAME
    #define BOARD_INFO_NAME "BTT E3 RRF"
  #endif
  
  #define USES_DIAG_JUMPERS
  
  // Add-on board for IDEX conversion
  //#define BTT_E3_RRF_IDEX_BOARD
  
  // Onboard I2C EEPROM
  #define I2C_EEPROM
  #define MARLIN_EEPROM_SIZE 0x1000                 // 4KB
  
  //
  // Servos
  //
  #define SERVO0_PIN                          PB0   // SERVOS
  
  //
  // Limit Switches
  //
  #define X_STOP_PIN                          PC0   // X-STOP
  #define Y_STOP_PIN                          PC1   // Y-STOP
  #define Z_STOP_PIN                          PC2   // Z-STOP
  
  #if ENABLED(BTT_E3_RRF_IDEX_BOARD)
    #if X2_USE_ENDSTOP == _XMAX_
      #define X_MAX_PIN                   FPC2_PIN  // X2-STOP
    #elif X2_USE_ENDSTOP == _XMIN_
      #define X_MIN_PIN                   FPC2_PIN  // X2-STOP
    #endif
  #endif
  
  //
  // Z Probe must be this pin
  //
  #define Z_MIN_PROBE_PIN                     PC5   // PROBE
  
  //
  // Filament Runout Sensor
  //
  #ifndef FIL_RUNOUT_PIN
    #define FIL_RUNOUT_PIN                    PC3   // E0-STOP
  #endif
  
  #if !defined(FIL1_RUNOUT2_PIN) && ENABLED(BTT_E3_RRF_IDEX_BOARD)
    #define FIL_RUNOUT2_PIN               FPC3_PIN  // E1-STOP
  #endif
  
  //
  // Power-loss Detection
  //
  #ifndef POWER_LOSS_PIN
    #define POWER_LOSS_PIN                    PE0   // Power Loss Detection: PWR-DET
  #endif
  
  //
  // Steppers
  //
  #define X_ENABLE_PIN                        PD7
  #define X_STEP_PIN                          PD5
  #define X_DIR_PIN                           PD4
  
  #define Y_ENABLE_PIN                        PD3
  #define Y_STEP_PIN                          PD0
  #define Y_DIR_PIN                           PA15
  
  #define Z_ENABLE_PIN                        PD14
  #define Z_STEP_PIN                          PC6
  #define Z_DIR_PIN                           PC7
  
  #define E0_ENABLE_PIN                       PD10
  #define E0_STEP_PIN                         PD12
  #define E0_DIR_PIN                          PD13
  
  #if ENABLED(BTT_E3_RRF_IDEX_BOARD)
    #define E1_ENABLE_PIN                 FPC7_PIN  // E1EN
    #define E1_STEP_PIN                   FPC5_PIN  // E1STP
    #define E1_DIR_PIN                    FPC4_PIN  // E1DIR
  
    #define X2_ENABLE_PIN                FPC13_PIN  // X2EN
    #define X2_STEP_PIN                  FPC11_PIN  // X2STP
    #define X2_DIR_PIN                   FPC10_PIN  // X2DIR
  #endif
  
  /**
   * TMC2208/TMC2209 stepper drivers
   */
  #if HAS_TMC_UART
    #define X_SERIAL_TX_PIN                   PD6
    #define X_SERIAL_RX_PIN        X_SERIAL_TX_PIN
  
    #define Y_SERIAL_TX_PIN                   PD1
    #define Y_SERIAL_RX_PIN        Y_SERIAL_TX_PIN
  
    #define Z_SERIAL_TX_PIN                   PD15
    #define Z_SERIAL_RX_PIN        Z_SERIAL_TX_PIN
  
    #define E0_SERIAL_TX_PIN                  PD11
    #define E0_SERIAL_RX_PIN      E0_SERIAL_TX_PIN
  
    #if ENABLED(BTT_E3_RRF_IDEX_BOARD)
      #define X2_SERIAL_TX_PIN           FPC12_PIN  // X2UART
      #define X2_SERIAL_RX_PIN    X2_SERIAL_TX_PIN
  
      #define E1_SERIAL_TX_PIN            FPC6_PIN  // E1UART
      #define E1_SERIAL_RX_PIN    E1_SERIAL_TX_PIN
    #endif
  
    // Reduce baud rate to improve software serial reliability
    #define TMC_BAUD_RATE 19200
  #endif
  
  //
  // Temperature Sensors
  //
  #define TEMP_BED_PIN                        PA1   // Analog Input "TB"
  #define TEMP_0_PIN                          PA0   // Analog Input "TH0"
  
  #if ENABLED(BTT_E3_RRF_IDEX_BOARD)
    #define TEMP_1_PIN                    FPC9_PIN  // Analog Input "TH1"
    #define PT100_PIN                     FPC8_PIN  // Analog Input "PT100" (INA826)
  #endif
  
  //
  // Heaters / Fans
  //
  #define HEATER_BED_PIN                      PB4   // "HB"
  #define HEATER_0_PIN                        PB3   // "HE0"
  
  #if ENABLED(BTT_E3_RRF_IDEX_BOARD)
    #define HEATER_1_PIN                 FPC16_PIN  // "HE1"
  #endif
  
  #define FAN_PIN                             PB5   // "FAN0"
  
  #ifndef CONTROLLER_FAN_PIN
    #define CONTROLLER_FAN_PIN                PB6   // "FAN1"
  #endif
  
  #if ENABLED(BTT_E3_RRF_IDEX_BOARD)
    #define FAN1_PIN                     FPC15_PIN  // "FAN0" in IDEX board
    #define FAN2_PIN                     FPC14_PIN  // "FAN1" in IDEX board
  #else
    //#define FAN1_PIN                        PB6   // "FAN1"
  #endif
  
  //
  // Misc. Functions
  //
  #ifndef NEOPIXEL_PIN
    #define NEOPIXEL_PIN                      PB7   // LED driving pin
  #endif
  
  #ifndef PS_ON_PIN
    #define PS_ON_PIN                         PE1   // Power Supply Control
  #endif
  
  /**
   *               BTT E3 RRF
   *                 -----
   *             5V | 1 2 | GND
   *  (LCD_EN) PE11 | 3 4 | PB1  (LCD_RS)
   *  (LCD_D4) PE10 | 5 6   PB2  (BTN_EN2)
   *          RESET | 7 8 | PE7  (BTN_EN1)
   * (BTN_ENC) PE9  | 9 10| PE8  (BEEPER)
   *                 -----
   *                 EXP1
   */
  
  #if HAS_WIRED_LCD
  
    #if ENABLED(CR10_STOCKDISPLAY)
  
      #define BEEPER_PIN                      PE8
      #define BTN_ENC                         PE9
  
      #define BTN_EN1                         PE7
      #define BTN_EN2                         PB2
  
      #define LCD_PINS_RS                     PB1
      #define LCD_PINS_ENABLE                 PE11
      #define LCD_PINS_D4                     PE10
  
    #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_E3_RRF.h' for details. Comment out this line to continue."
  
      #define LCD_PINS_RS                     PE10
      #define LCD_PINS_ENABLE                 PE9
      #define LCD_PINS_D4                     PB1
      #define LCD_PINS_D5                     PB2
      #define LCD_PINS_D6                     PE7
      #define LCD_PINS_D7                     PE8
      #define ADC_KEYPAD_PIN                  PB0   // Repurpose servo pin for ADC - CONNECTING TO 5V WILL DAMAGE THE BOARD!
  
    #elif EITHER(MKS_MINI_12864, ENDER2_STOCKDISPLAY)
  
      #define BTN_ENC                         PE9
      #define BTN_EN1                         PE7
      #define BTN_EN2                         PB2
  
      #define DOGLCD_CS                       PB1
      #define DOGLCD_A0                       PE10
      #define DOGLCD_SCK                      PE8
      #define DOGLCD_MOSI                     PE11
  
      #define FORCE_SOFT_SPI
      #define LCD_BACKLIGHT_PIN               -1
  
    #elif IS_TFTGLCD_PANEL
  
      #if ENABLED(TFTGLCD_PANEL_SPI)
  
        #error "CAUTION! TFTGLCD_PANEL_SPI requires wiring modifications. See 'pins_BTT_E3_RRF.h' for details. Comment out this line to continue."
  
        /**
         * TFTGLCD_PANEL_SPI display pinout
         *
         *               Board                                      Display
         *               -----                                       -----
         *           5V | 1 2 | GND                (SPI1-MISO) MISO | 1 2 | SCK   (SPI1-SCK)
         * (FREE)  PE11 | 3 4 | PB1  (LCD_CS)      (PE7)     LCD_CS | 3 4 | SD_CS (PB2)
         * (FREE)  PE10 | 5 6 | PB2  (SD_CS)                 (FREE) | 5 6 | MOSI  (SPI1-MOSI)
         *        RESET | 7 8 | PE7  (MOD_RESET)   (PE8)     SD_DET | 7 8 | (FREE)
         * (BEEPER) PE9 | 9 10| PE8  (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 ----------- FREE
         *   SPI1-3 ----------- EXP1-2
         *   EXP1-6 ----------- EXP1-4
         *   EXP1-7 ----------- FREE
         *   EXP1-8 ----------- EXP1-3
         *   SPI1-1 ----------- EXP1-1
         *  EXP1-10 ----------- EXP1-7
         */
  
        #define TFTGLCD_CS                    PE7
  
      #endif
  
    #else
      #error "Only CR10_STOCKDISPLAY, ZONESTAR_LCD, ENDER2_STOCKDISPLAY, MKS_MINI_12864, and TFTGLCD_PANEL_(SPI|I2C) are currently supported on the BTT_E3_RRF."
    #endif
  
    // Alter timing for graphical display
    #if IS_U8GLIB_ST7920
      #define BOARD_ST7920_DELAY_1              96
      #define BOARD_ST7920_DELAY_2              48
      #define BOARD_ST7920_DELAY_3             600
    #endif
  
  #endif // HAS_WIRED_LCD
  
  #if BOTH(TOUCH_UI_FTDI_EVE, LCD_FYSETC_TFT81050)
  
    #error "CAUTION! LCD_FYSETC_TFT81050 requires wiring modifications. See 'pins_BTT_E3_RRF.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)  PE11 | 3 4 | PB1  (LCD_CS)      (PE7)  MOD_RESET | 3 4 | SD_CS (PB2)
     * (FREE)  PE10 | 5 6 | PB2  (SD_CS)       (PB1)     LCD_CS | 5 6 | MOSI  (SPI1-MOSI)
     *        RESET | 7 8 | PE7  (MOD_RESET)   (PE8)     SD_DET | 7 8 | RESET
     * (BEEPER) PE9 | 9 10| PE8  (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
     *   SPI1-3 ----------- 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                        PE9
  
    #define CLCD_MOD_RESET                    PE7
    #define CLCD_SPI_CS                       PB1
  
  #endif // TOUCH_UI_FTDI_EVE && LCD_FYSETC_TFT81050
  
  //
  // SD Support
  //
  
  #ifndef SDCARD_CONNECTION
    #define SDCARD_CONNECTION              ONBOARD
  #endif
  
  #if SD_CONNECTION_IS(ONBOARD)
    #define SDIO_SUPPORT                            // Use SDIO for onboard SD
    #define SDIO_D0_PIN                       PC8
    #define SDIO_D1_PIN                       PC9
    #define SDIO_D2_PIN                       PC10
    #define SDIO_D3_PIN                       PC11
    #define SDIO_CK_PIN                       PC12
    #define SDIO_CMD_PIN                      PD2
  
    //#define SDIO_CLOCK                  48000000
    #define SD_DETECT_PIN                     PC4
  #elif SD_CONNECTION_IS(CUSTOM_CABLE)
    #error "SD CUSTOM_CABLE is not compatible with BTT E3 RRF."
  #endif
  
  //
  // WIFI
  //
  
  #define ESP_WIFI_MODULE_COM                    3  // Must also set either SERIAL_PORT or SERIAL_PORT_2 to this
  #define ESP_WIFI_MODULE_BAUDRATE        BAUDRATE  // Must use same BAUDRATE as SERIAL_PORT & SERIAL_PORT_2
  #define ESP_WIFI_MODULE_RESET_PIN           PA4
  #define ESP_WIFI_MODULE_ENABLE_PIN          PA5
  #define ESP_WIFI_MODULE_GPIO0_PIN           PA6
  
  #if ENABLED(BTT_E3_RRF_IDEX_BOARD)
    #define FPC2_PIN                          PB11
    #define FPC3_PIN                          PB10
    #define FPC4_PIN                          PE12
    #define FPC5_PIN                          PE13
    #define FPC6_PIN                          PE14
    #define FPC7_PIN                          PE15
    #define FPC8_PIN                          PA3
    #define FPC9_PIN                          PA2
    #define FPC10_PIN                         PA8
    #define FPC11_PIN                         PC15
    #define FPC12_PIN                         PC14
    #define FPC13_PIN                         PC13
    #define FPC14_PIN                         PE6
    #define FPC15_PIN                         PE5
    #define FPC16_PIN                         PE4
    #define FPC17_PIN                         PE3
  #endif
  