/**
* Marlin 3 D 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
# if NOT_TARGET(TARGET_STM32F1)
# error "Oops! Select an STM32F1 board in 'Tools > Board.'"
# endif
// Release PB3/PB4 (E0 STP/DIR) 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 PC0 // "X-STOP"
# define Y_STOP_PIN PC1 // "Y-STOP"
# define Z_STOP_PIN PC2 // "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 PC15 // "E0-STOP"
# endif
//
// Steppers
//
# define X_ENABLE_PIN PB14
# define X_STEP_PIN PB13
# define X_DIR_PIN PB12
# define Y_ENABLE_PIN PB11
# define Y_STEP_PIN PB10
# define Y_DIR_PIN PB2
# define Z_ENABLE_PIN PB1
# define Z_STEP_PIN PB0
# define Z_DIR_PIN PC5
# define E0_ENABLE_PIN PD2
# define E0_STEP_PIN PB3
# define E0_DIR_PIN PB4
//
// 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"
# ifdef SKR_MINI_E3_V2
# define FAN_PIN PC6
# else
# define FAN_PIN PA8 // "FAN0"
# endif
//
// USB connect control
//
# ifdef SKR_MINI_E3_V2
# define USB_CONNECT_PIN PA14
# else
# define USB_CONNECT_PIN PC13
# endif
# define USB_CONNECT_INVERTING false
/**
* SKR Mini E3 V1 .0 , V1 .2 SKR Mini E3 V2 .0
* _____ _____
* 5 V | 1 2 | GND 5 V | 1 2 | GND
* ( LCD_EN ) PB7 | 3 4 | PB8 ( LCD_RS ) ( LCD_EN ) PB15 | 3 4 | PB8 ( LCD_RS )
* ( LCD_D4 ) PB9 | 5 6 PA10 ( BTN_EN2 ) ( LCD_D4 ) PB9 | 5 6 PA10 ( BTN_EN2 )
* RESET | 7 8 | PA9 ( BTN_EN1 ) RESET | 7 8 | PA9 ( BTN_EN1 )
* ( BTN_ENC ) PB6 | 9 10 | PB5 ( BEEPER ) ( BTN_ENC ) PA15 | 9 10 | PB5 ( BEEPER )
* - - - - - - - - - -
* EXP1 EXP1
*/
# ifdef SKR_MINI_E3_V2
# define EXP1_9 PA15
# define EXP1_3 PB15
# else
# define EXP1_9 PB6
# define EXP1_3 PB7
# endif
# if HAS_SPI_LCD
# if ENABLED(CR10_STOCKDISPLAY)
# define BEEPER_PIN PB5
# define BTN_ENC EXP1_9
# define BTN_EN1 PA9
# define BTN_EN2 PA10
# define LCD_PINS_RS PB8
# define LCD_PINS_ENABLE EXP1_3
# 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 EXP1_9
# define LCD_PINS_D4 PB8
# define LCD_PINS_D5 PA10
# define LCD_PINS_D6 PA9
# define LCD_PINS_D7 PB5
# define ADC_KEYPAD_PIN PA1 // Repurpose servo pin for ADC - CONNECTING TO 5V WILL DAMAGE THE BOARD!
# elif EITHER(MKS_MINI_12864, ENDER2_STOCKDISPLAY)
# define BTN_ENC EXP1_9
# define BTN_EN1 PA9
# define BTN_EN2 PA10
# define DOGLCD_CS PB8
# define DOGLCD_A0 PB9
# define DOGLCD_SCK PB5
# define DOGLCD_MOSI EXP1_3
# define FORCE_SOFT_SPI
# define LCD_BACKLIGHT_PIN -1
# else
# error "Only CR10_STOCKDISPLAY, ZONESTAR_LCD, ENDER2_STOCKDISPLAY, and MKS_MINI_12864 are currently supported on the BIGTREE_SKR_MINI_E3."
# 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_MINI_E3_common.h' for details. Comment out this line to continue."
/** FYSETC TFT TFT81050 display pinout
*
* Board Display
* _____ _____
* 5 V | 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 ) ( PB5 ) SD_DET | 7 8 | RESET
* ( BEEPER ) PB6 | 9 10 | PB5 ( SD_DET ) GND | 9 10 | 5 V
* - - - - - - - - - -
* 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 EXP1_9
# define CLCD_MOD_RESET PA9
# define CLCD_SPI_CS PB8
# 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 PB5
# define SS_PIN PA10
# elif SD_CONNECTION_IS(CUSTOM_CABLE)
# error "SD CUSTOM_CABLE is not compatible with SKR Mini E3."
# endif
# define ONBOARD_SPI_DEVICE 1 // SPI1
# define ONBOARD_SD_CS_PIN PA4 // Chip select for "System" SD card