/**
 * 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/>.
 *
 */

/**
 * MKS Robin MINI (STM32F130VET6) board pin assignments
 */

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

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

#define BOARD_NAME "MKS Robin mini"

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

//
// Note: MKS Robin mini board is using SPI2 interface.
//
#define SPI_MODULE 2

//
// Limit Switches
//
#define X_MIN_PIN          PA15
#define X_MAX_PIN          PA15
#define Y_MIN_PIN          PA12
#define Y_MAX_PIN          PA12
#define Z_MIN_PIN          PA11
#define Z_MAX_PIN          PC4

//
// Steppers
//
#define X_ENABLE_PIN       PE4
#define X_STEP_PIN         PE3
#define X_DIR_PIN          PE2

#define Y_ENABLE_PIN       PE1
#define Y_STEP_PIN         PE0
#define Y_DIR_PIN          PB9

#define Z_ENABLE_PIN       PB8
#define Z_STEP_PIN         PB5
#define Z_DIR_PIN          PB4

#define E0_ENABLE_PIN      PB3
#define E0_STEP_PIN        PD6
#define E0_DIR_PIN         PD3

//
// Temperature Sensors
//
#define TEMP_0_PIN         PC1   // TH1
//#define TEMP_1_PIN         PC2   // TH2
#define TEMP_BED_PIN       PC0   // TB1

//
// Heaters / Fans
//
#define HEATER_0_PIN       PC3   // HEATER1
//#define HEATER_1_PIN       PA6   // HEATER2
#define HEATER_BED_PIN     PA0   // HOT BED

#define FAN_PIN            PB1   // FAN

#define BTN_ENC            PB3   // Pin is not connected. Real pin is needed to enable encoder's push button functionality used by touch screen

//#define MAX6675_SS_PIN     PE5  // TC1 - CS1
//#define MAX6675_SS_PIN     PE6  // TC2 - CS2

#define POWER_LOSS_PIN     PA2   // PW_DET
#define PS_ON_PIN          PA3   // PW_OFF
#define FIL_RUNOUT_PIN     PF11  // MT_DET

#define BEEPER_PIN         PC5
//#define LED_PIN            PB2

/**
 * Note: MKS Robin TFT screens may have different TFT controllers
 * If the screen stays white, disable 'LCD_RESET_PIN' to rely on the bootloader to do screen initialization.
 */
#define LCD_RESET_PIN      PF6
#define NO_LCD_REINIT             // Suppress LCD re-initialization

#define LCD_BACKLIGHT_PIN  PD13
#define FSMC_CS_PIN        PD7    // NE4
#define FSMC_RS_PIN        PD11   // A0
#define TOUCH_CS           PC2

#define SD_DETECT_PIN      PD12

// Motor current PWM pins
#define MOTOR_CURRENT_PWM_XY_PIN   PA6
#define MOTOR_CURRENT_PWM_Z_PIN    PA7
#define MOTOR_CURRENT_PWM_E_PIN    PB0
#define MOTOR_CURRENT_PWM_RANGE    65535 // (255 * (1000mA / 65535)) * 257 = 1000 is equal 1.6v Vref in turn equal 1Amp
#define DEFAULT_PWM_MOTOR_CURRENT  { 1030, 1030, 1030 } // 1.05Amp per driver, here is XY, Z and E. This values determined empirically.

// This is a kind of workaround in case native marlin "digipot" interface won't work.
// Required to enable related code in STM32F1/HAL.cpp
//#ifndef MKS_ROBIN_MINI_VREF_PWM
//  #define MKS_ROBIN_MINI_VREF_PWM
//#endif

//#define VREF_XY_PIN        PA6
//#define VREF_Z_PIN         PA7
//#define VREF_E1_PIN        PB0