/**
 * Marlin 3D Printer Firmware
 * Copyright (c) 2019 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 <http://www.gnu.org/licenses/>.
 *
 */
#pragma once

#ifndef TARGET_STM32F4
  #error "Oops! Select an STM32F4 board in 'Tools > Board.'"
#endif

#if HOTENDS > 3 || E_STEPPERS > 3
  #error "BIGTREE SKR Pro V1.1 supports up to 3 hotends / E-steppers."
#endif

#define BOARD_NAME "BIGTREE SKR Pro 1.1"

#define SRAM_EEPROM_EMULATION

//
// Servos
//
#define SERVO0_PIN         PA1

//
// Limit Switches
//
#define X_MIN_PIN          PB10
#define X_MAX_PIN          PE15
#define Y_MIN_PIN          PE12
#define Y_MAX_PIN          PE10
#define Z_MIN_PIN          PG8
#define Z_MAX_PIN          PG5

//
// Z Probe must be this pins
//
#ifndef Z_MIN_PROBE_PIN
  #define Z_MIN_PROBE_PIN  PA2
#endif

//
// Steppers
//
#define X_STEP_PIN         PE9
#define X_DIR_PIN          PF1
#define X_ENABLE_PIN       PF2
#ifndef X_CS_PIN
  #define X_CS_PIN         PA15
#endif

#define Y_STEP_PIN         PE11
#define Y_DIR_PIN          PE8
#define Y_ENABLE_PIN       PD7
 #ifndef Y_CS_PIN
  #define Y_CS_PIN         PB8
#endif

#define Z_STEP_PIN         PE13
#define Z_DIR_PIN          PC2
#define Z_ENABLE_PIN       PC0
#ifndef Z_CS_PIN
  #define Z_CS_PIN         PB9
#endif

#define E0_STEP_PIN        PE14
#define E0_DIR_PIN         PA0
#define E0_ENABLE_PIN      PC3
#ifndef E0_CS_PIN
  #define E0_CS_PIN        PB3
#endif

#define E1_STEP_PIN        PD15
#define E1_DIR_PIN         PE7
#define E1_ENABLE_PIN      PA3
#ifndef E1_CS_PIN
  #define E1_CS_PIN        PG15
#endif

#define E2_STEP_PIN        PD13
#define E2_DIR_PIN         PG9
#define E2_ENABLE_PIN      PF0
#ifndef E2_CS_PIN
  #define E2_CS_PIN        PG12
#endif

//
// Software SPI pins for TMC2130 stepper drivers
//
#if ENABLED(TMC_USE_SW_SPI)
  #ifndef TMC_SW_MOSI
    #define TMC_SW_MOSI      PC12
  #endif
  #ifndef TMC_SW_MISO
    #define TMC_SW_MISO      PC11
  #endif
  #ifndef TMC_SW_SCK
    #define TMC_SW_SCK       PC10
  #endif
#endif

#if HAS_TMC220x
  /**
   * TMC2208/TMC2209 stepper drivers
   *
   * Hardware serial communication ports.
   * If undefined software serial is used according to the pins below
   */
  //#define X_HARDWARE_SERIAL  Serial
  //#define X2_HARDWARE_SERIAL Serial1
  //#define Y_HARDWARE_SERIAL  Serial1
  //#define Y2_HARDWARE_SERIAL Serial1
  //#define Z_HARDWARE_SERIAL  Serial1
  //#define Z2_HARDWARE_SERIAL Serial1
  //#define E0_HARDWARE_SERIAL Serial1
  //#define E1_HARDWARE_SERIAL Serial1
  //#define E2_HARDWARE_SERIAL Serial1
  //#define E3_HARDWARE_SERIAL Serial1
  //#define E4_HARDWARE_SERIAL Serial1

  //
  // Software serial
  //
  #define X_SERIAL_TX_PIN  PC13
  #define X_SERIAL_RX_PIN  PC13

  #define Y_SERIAL_TX_PIN  PE3
  #define Y_SERIAL_RX_PIN  PE3

  #define Z_SERIAL_TX_PIN  PE1
  #define Z_SERIAL_RX_PIN  PE1

  #define E0_SERIAL_TX_PIN PD4
  #define E0_SERIAL_RX_PIN PD4

  #define E1_SERIAL_TX_PIN PD1
  #define E1_SERIAL_RX_PIN PD1

  #define E2_SERIAL_TX_PIN PD6
  #define E2_SERIAL_RX_PIN PD6
#endif

//
// Temperature Sensors
//
#define TEMP_0_PIN         PF4  // T1 <-> E0
#define TEMP_1_PIN         PF5  // T2 <-> E1
#define TEMP_2_PIN         PF6  // T3 <-> E2
#define TEMP_BED_PIN       PF3  // T0 <-> Bed

//
// Heaters / Fans
//
#define HEATER_0_PIN       PB1  // Heater0
#define HEATER_1_PIN       PD14 // Heater1
#define HEATER_2_PIN       PB0  // Heater1
#define HEATER_BED_PIN     PD12 // Hotbed
#define FAN_PIN            PC8  // Fan0
#define FAN1_PIN           PE5  // Fan1
#define FAN2_PIN           PE6  // Fan2

//
// Misc. Functions
//
#define SDSS               PB12

/**
 *               _____                                             _____
 *           NC | · · | GND                                    5V | · · | GND
 *        RESET | · · | PF12(SD_DETECT)             (LCD_D7)  PG7 | · · | PG6  (LCD_D6)
 *   (MOSI)PB15 | · · | PF11(BTN_EN2)               (LCD_D5)  PG3 | · · | PG2  (LCD_D4)
 *  (SD_SS)PB12 | · · | PG10(BTN_EN1)               (LCD_RS) PD10 | · · | PD11 (LCD_EN)
 *    (SCK)PB13 | · · | PB14(MISO)                 (BTN_ENC)  PA8 | · · | PG4  (BEEPER)
 *               ￣￣                                               ￣￣
 *               EXP2                                              EXP1
 */

//
// LCDs and Controllers
//
#if HAS_SPI_LCD
  #define BEEPER_PIN       PG4
  #define BTN_ENC          PA8

  #if ENABLED(CR10_STOCKDISPLAY)
    #define LCD_PINS_RS    PG6

    #define BTN_EN1        PD11
    #define BTN_EN2        PG2

    #define LCD_PINS_ENABLE PG7
    #define LCD_PINS_D4    PG3

  #else

    #define LCD_PINS_RS    PD10

    #define BTN_EN1        PG10
    #define BTN_EN2        PF11
    #define SD_DETECT_PIN  PF12

    #define LCD_SDSS       PB12

    #define LCD_PINS_ENABLE PD11
    #define LCD_PINS_D4    PG2

    #if ENABLED(ULTIPANEL)
      #define LCD_PINS_D5  PG3
      #define LCD_PINS_D6  PG6
      #define LCD_PINS_D7  PG7
    #endif

  #endif

  // Alter timing for graphical display
  #if HAS_GRAPHICAL_LCD
    #ifndef ST7920_DELAY_1
      #define ST7920_DELAY_1 DELAY_NS(96)
    #endif
    #ifndef ST7920_DELAY_2
      #define ST7920_DELAY_2 DELAY_NS(48)
    #endif
    #ifndef ST7920_DELAY_3
      #define ST7920_DELAY_3 DELAY_NS(600)
    #endif
  #endif

#endif // HAS_SPI_LCD