/**
 * Marlin 3D Printer Firmware
 * Copyright (C) 2016 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/>.
 *
 */

/**
 * CREALITY (STM32F103) board pin assignments
 */

#ifndef __STM32F1__
  #error "Oops! Select an STM32F1 board in 'Tools > Board.'"
#endif

#if HOTENDS > 1 || E_STEPPERS > 1
  #error "CREALITY supports up to 1 hotends / E-steppers. Comment out this line to continue."
#endif

#define BOARD_INFO_NAME      "CREALITY V4"
#define DEFAULT_MACHINE_NAME "Ender 3 V2"

//
// EEPROM
//
#if NO_EEPROM_SELECTED
  // FLASH
  //#define FLASH_EEPROM_EMULATION

  // I2C
  #define IIC_BL24CXX_EEPROM                      // EEPROM on I2C-0 used only for display settings
  #if ENABLED(IIC_BL24CXX_EEPROM)
    #define IIC_EEPROM_SDA                  PA11
    #define IIC_EEPROM_SCL                  PA12
    //#define MARLIN_EEPROM_SIZE 0x4000           // 16Kb (24c16)
  #endif

  #define SDCARD_EEPROM_EMULATION                 // SD EEPROM until all EEPROM is BL24CXX
  #define MARLIN_EEPROM_SIZE 0x1000               // 4Kb

  // SPI
  //#define SPI_EEPROM                            // EEPROM on SPI-0
  //#define SPI_CHAN_EEPROM1  ?
  //#define SPI_EEPROM1_CS    ?

  // 2K EEPROM
  //#define SPI_EEPROM2_CS    ?

  // 32Mb FLASH
  //#define SPI_FLASH_CS      ?
#endif

//
// Servos
//
#define SERVO0_PIN                          PB0   // BLTouch OUT

//
// Limit Switches
//
#define X_STOP_PIN                          PA5
#define Y_STOP_PIN                          PA6
#define Z_STOP_PIN                          PA7

#define Z_PROBE_PIN                         PB1   // BLTouch IN

//
// Steppers
//
#define X_ENABLE_PIN                        PC3
#define X_STEP_PIN                          PC2
#define X_DIR_PIN                           PB9

#define Y_ENABLE_PIN                        PC3
#define Y_STEP_PIN                          PB8
#define Y_DIR_PIN                           PB7

#define Z_ENABLE_PIN                        PC3
#define Z_STEP_PIN                          PB6
#define Z_DIR_PIN                           PB5

#define E0_ENABLE_PIN                       PC3
#define E0_STEP_PIN                         PB4
#define E0_DIR_PIN                          PB3

//
// Release PB4 (Y_ENABLE_PIN) from JTAG NRST role
//
#define DISABLE_DEBUG

//
// Temperature Sensors
//
#define TEMP_0_PIN                          PC5   // TH1
#define TEMP_BED_PIN                        PC4   // TB1

//
// Heaters / Fans
//
#define HEATER_0_PIN                        PA1   // HEATER1
#define HEATER_BED_PIN                      PA2   // HOT BED

#define FAN_PIN                             PA0   // FAN
#define FAN_SOFT_PWM

//
// SD Card
//
#define SD_DETECT_PIN                       PC7
#define SDCARD_CONNECTION                ONBOARD
#define ON_BOARD_SPI_DEVICE 1
#define ONBOARD_SD_CS_PIN                   PA4   // SDSS
#define SDIO_SUPPORT

#if ENABLED(RET6_12864_LCD)

  /* RET6 12864 LCD */
  #define LCD_PINS_RS                       PB12
  #define LCD_PINS_ENABLE                   PB15
  #define LCD_PINS_D4                       PB13

  #define BTN_ENC                           PB2
  #define BTN_EN1                           PB10
  #define BTN_EN2                           PB14

  #define BEEPER_PIN                        PC6
#elif ENABLED(VET6_12864_LCD)

  /* VET6 12864 LCD */
  #define LCD_PINS_RS                       PA4
  #define LCD_PINS_ENABLE                   PA7
  #define LCD_PINS_D4                       PA5

  #define BTN_ENC                           PC5
  #define BTN_EN1                           PB10
  #define BTN_EN2                           PA6

#elif ENABLED(DWIN_CREALITY_LCD)

  /* RET6 DWIN ENCODER LCD */
  #define BTN_ENC                           PB14
  #define BTN_EN1                           PB15
  #define BTN_EN2                           PB12

  //#define LCD_LED_PIN                     PB2
  #define BEEPER_PIN                        PB13

#elif ENABLED(DWIN_VET6_CREALITY_LCD)

  /* VET6 DWIN ENCODER LCD */
  #define BTN_ENC                           PA6
  #define BTN_EN1                           PA7
  #define BTN_EN2                           PA4

  #define BEEPER_PIN                        PA5

#endif