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+/**
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+ * Marlin 3D Printer Firmware
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+ * Copyright (c) 2021 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
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+ *
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+ * Based on Sprinter and grbl.
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+ * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
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+ *
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+ * This program is free software: you can redistribute it and/or modify
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+ * it under the terms of the GNU General Public License as published by
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+ * the Free Software Foundation, either version 3 of the License, or
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+ * (at your option) any later version.
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+ *
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+ * This program is distributed in the hope that it will be useful,
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+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
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+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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+ * GNU General Public License for more details.
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+ *
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+ * You should have received a copy of the GNU General Public License
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+ * along with this program. If not, see <https://www.gnu.org/licenses/>.
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+ *
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+ */
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+#pragma once
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+
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+//#define BOARD_CUSTOM_BUILD_FLAGS -DTONE_CHANNEL=4 -DTONE_TIMER=4 -DTIMER_TONE=4
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+
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+#ifndef BOARD_INFO_NAME
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+ #define BOARD_INFO_NAME "BTT SKR Mini E3 V3.0"
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+#endif
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+
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+#define USES_DIAG_JUMPERS
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+
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+// Ignore temp readings during development.
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+//#define BOGUS_TEMPERATURE_GRACE_PERIOD 2000
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+
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+#define LED_PIN PD8
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+
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+// Onboard I2C EEPROM
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+#if EITHER(NO_EEPROM_SELECTED, I2C_EEPROM)
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+ #undef NO_EEPROM_SELECTED
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+ #define I2C_EEPROM
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+ #define SOFT_I2C_EEPROM // Force the use of Software I2C
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+ #define I2C_SCL_PIN PB6
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+ #define I2C_SDA_PIN PB7
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+ #define MARLIN_EEPROM_SIZE 0x1000 // 4KB
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+#endif
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+
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+//
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+// Servos
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+//
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+#define SERVO0_PIN PA1 // SERVOS
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+
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+//
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+// Limit Switches
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+//
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+#define X_STOP_PIN PC0 // X-STOP
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+#define Y_STOP_PIN PC1 // Y-STOP
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+#define Z_STOP_PIN PC2 // Z-STOP
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+
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+//
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+// Z Probe must be this pin
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+//
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+#define Z_MIN_PROBE_PIN PC14 // PROBE
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+
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+//
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+// Filament Runout Sensor
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+//
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+#ifndef FIL_RUNOUT_PIN
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+ #define FIL_RUNOUT_PIN PC15 // E0-STOP
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+#endif
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+
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+//
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+// Power-loss Detection
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+//
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+#ifndef POWER_LOSS_PIN
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+ #define POWER_LOSS_PIN PC12 // Power Loss Detection: PWR-DET
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+#endif
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+
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+#ifndef NEOPIXEL_PIN
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+ #define NEOPIXEL_PIN PA8 // LED driving pin
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+#endif
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+
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+#ifndef PS_ON_PIN
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+ #define PS_ON_PIN PC13 // Power Supply Control
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+#endif
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+
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+//
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+// Steppers
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+//
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+#define X_ENABLE_PIN PB14
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+#define X_STEP_PIN PB13
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+#define X_DIR_PIN PB12
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+
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+#define Y_ENABLE_PIN PB11
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+#define Y_STEP_PIN PB10
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+#define Y_DIR_PIN PB2
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+
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+#define Z_ENABLE_PIN PB1
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+#define Z_STEP_PIN PB0
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+#define Z_DIR_PIN PC5
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+
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+#define E0_ENABLE_PIN PD1
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+#define E0_STEP_PIN PB3
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+#define E0_DIR_PIN PB4
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+
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+#if HAS_TMC_UART
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+ /**
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+ * TMC220x stepper drivers
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+ * Hardware serial communication ports
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+ */
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+ #define X_HARDWARE_SERIAL MSerial4
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+ #define Y_HARDWARE_SERIAL MSerial4
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+ #define Z_HARDWARE_SERIAL MSerial4
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+ #define E0_HARDWARE_SERIAL MSerial4
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+
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+ // Default TMC slave addresses
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+ #ifndef X_SLAVE_ADDRESS
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+ #define X_SLAVE_ADDRESS 0
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+ #endif
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+ #ifndef Y_SLAVE_ADDRESS
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+ #define Y_SLAVE_ADDRESS 2
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+ #endif
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+ #ifndef Z_SLAVE_ADDRESS
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+ #define Z_SLAVE_ADDRESS 1
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+ #endif
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+ #ifndef E0_SLAVE_ADDRESS
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+ #define E0_SLAVE_ADDRESS 3
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+ #endif
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+#endif
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+
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+//
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+// Temperature Sensors
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+//
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+#define TEMP_0_PIN PA0 // Analog Input "TH0"
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+#define TEMP_BED_PIN PC4 // Analog Input "TB0"
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+
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+//
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+// Heaters / Fans
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+//
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+#define HEATER_0_PIN PC8 // "HE"
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+#define HEATER_BED_PIN PC9 // "HB"
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+#define FAN_PIN PC6 // "FAN0"
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+#define FAN1_PIN PC7 // "FAN1"
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+#define FAN2_PIN PB15 // "FAN2"
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+
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+/**
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+ * SKR Mini E3 V3.0
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+ * ------
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+ * 5V | 1 2 | GND
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+ * (LCD_EN) PD6 | 3 4 | PB8 (LCD_RS)
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+ * (LCD_D4) PB9 | 5 6 PA10 (BTN_EN2)
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+ * RESET | 7 8 | PA9 (BTN_EN1)
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+ * (BTN_ENC) PA15 | 9 10 | PB5 (BEEPER)
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+ * ------
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+ * EXP1
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+ */
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+#define EXP1_09_PIN PA15
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+#define EXP1_03_PIN PD6
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+
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+#if EITHER(DWIN_CREALITY_LCD, IS_DWIN_MARLINUI)
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+ /**
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+ * ------ ------ ------
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+ * VCC | 1 2 | GND VCC | 1 2 | GND GND | 2 1 | VCC
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+ * A | 3 4 | B A | 3 4 | B B | 4 3 | A
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+ * | 5 6 TX BEEP | 5 6 ENT ENT | 6 5 | BEEP
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+ * | 7 8 | RX TX | 7 8 | RX RX | 8 7 | TX
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+ * BEEP | 9 10 | ENT | 9 10 | | 10 9 |
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+ * ------ ------ ------
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+ * EXP1 DWIN DWIN (plug)
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+ *
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+ * All pins are labeled as printed on DWIN PCB. Connect TX-TX, A-A and so on.
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+ */
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+
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+ #error "DWIN_CREALITY_LCD requires a custom cable, see diagram above this line. Comment out this line to continue."
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+
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+ #define BEEPER_PIN EXP1_09_PIN
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+ #define BTN_EN1 EXP1_03_PIN
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+ #define BTN_EN2 PB8
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+ #define BTN_ENC PB5
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+
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+#elif HAS_WIRED_LCD
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+
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+ #if ENABLED(CR10_STOCKDISPLAY)
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+
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+ #define BEEPER_PIN PB5
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+ #define BTN_ENC EXP1_09_PIN
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+
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+ #define BTN_EN1 PA9
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+ #define BTN_EN2 PA10
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+
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+ #define LCD_PINS_RS PB8
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+ #define LCD_PINS_ENABLE EXP1_03_PIN
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+ #define LCD_PINS_D4 PB9
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+
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+ #elif ENABLED(ZONESTAR_LCD) // ANET A8 LCD Controller - Must convert to 3.3V - CONNECTING TO 5V WILL DAMAGE THE BOARD!
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+
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+ #error "CAUTION! ZONESTAR_LCD requires wiring modifications. See 'pins_BTT_SKR_MINI_E3_common.h' for details. Comment out this line to continue."
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+
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+ #define LCD_PINS_RS PB9
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+ #define LCD_PINS_ENABLE EXP1_09_PIN
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+ #define LCD_PINS_D4 PB8
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+ #define LCD_PINS_D5 PA10
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+ #define LCD_PINS_D6 PA9
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+ #define LCD_PINS_D7 PB5
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+ #define ADC_KEYPAD_PIN PA1 // Repurpose servo pin for ADC - CONNECTING TO 5V WILL DAMAGE THE BOARD!
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+
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+ #elif EITHER(MKS_MINI_12864, ENDER2_STOCKDISPLAY)
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+
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+ #define BTN_ENC EXP1_09_PIN
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+ #define BTN_EN1 PA9
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+ #define BTN_EN2 PA10
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+
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+ #define DOGLCD_CS PB8
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+ #define DOGLCD_A0 PB9
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+ #define DOGLCD_SCK PB5
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+ #define DOGLCD_MOSI EXP1_03_PIN
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+
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+ #define FORCE_SOFT_SPI
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+ #define LCD_BACKLIGHT_PIN -1
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+
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+ #elif IS_TFTGLCD_PANEL
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+
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+ #if ENABLED(TFTGLCD_PANEL_SPI)
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+
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+ #error "CAUTION! TFTGLCD_PANEL_SPI requires wiring modifications. See 'pins_BTT_SKR_MINI_E3_common.h' for details. Comment out this line to continue."
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+
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+ /**
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+ * TFTGLCD_PANEL_SPI display pinout
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+ *
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+ * Board Display
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+ * ------ ------
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+ * 5V | 1 2 | GND (SPI1-MISO) MISO | 1 2 | SCK (SPI1-SCK)
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+ * (FREE) PB7 | 3 4 | PB8 (LCD_CS) (PA9) LCD_CS | 3 4 | SD_CS (PA10)
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+ * (FREE) PB9 | 5 6 | PA10 (SD_CS) (FREE) | 5 6 | MOSI (SPI1-MOSI)
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+ * RESET | 7 8 | PA9 (MOD_RESET) (PB5) SD_DET | 7 8 | (FREE)
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+ * (BEEPER) PB6 | 9 10 | PB5 (SD_DET) GND | 9 10 | 5V
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+ * ------ ------
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+ * EXP1 EXP1
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+ *
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+ * Needs custom cable:
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+ *
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+ * Board Display
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+ *
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+ * EXP1-1 ----------- EXP1-10
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+ * EXP1-2 ----------- EXP1-9
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+ * SPI1-4 ----------- EXP1-6
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+ * EXP1-4 ----------- FREE
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+ * SPI1-3 ----------- EXP1-2
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+ * EXP1-6 ----------- EXP1-4
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+ * EXP1-7 ----------- FREE
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+ * EXP1-8 ----------- EXP1-3
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+ * SPI1-1 ----------- EXP1-1
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+ * EXP1-10 ----------- EXP1-7
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+ */
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+
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+ #define TFTGLCD_CS PA9
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+
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+ #endif
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+
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+ #else
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+ #error "Only CR10_STOCKDISPLAY, ZONESTAR_LCD, ENDER2_STOCKDISPLAY, MKS_MINI_12864, and TFTGLCD_PANEL_(SPI|I2C) are currently supported on the BIGTREE_SKR_MINI_E3."
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+ #endif
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+
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+#endif // HAS_WIRED_LCD
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+
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+#if BOTH(TOUCH_UI_FTDI_EVE, LCD_FYSETC_TFT81050)
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+
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+ #error "CAUTION! LCD_FYSETC_TFT81050 requires wiring modifications. See 'pins_BTT_SKR_MINI_E3_common.h' for details. Comment out this line to continue."
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+
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+ /**
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+ * FYSETC TFT TFT81050 display pinout
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+ *
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+ * Board Display
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+ * ------ ------
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+ * 5V | 1 2 | GND (SPI1-MISO) MISO | 1 2 | SCK (SPI1-SCK)
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+ * (FREE) PB7 | 3 4 | PB8 (LCD_CS) (PA9) MOD_RESET | 3 4 | SD_CS (PA10)
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+ * (FREE) PB9 | 5 6 | PA10 (SD_CS) (PB8) LCD_CS | 5 6 | MOSI (SPI1-MOSI)
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+ * RESET | 7 8 | PA9 (MOD_RESET) (PB5) SD_DET | 7 8 | RESET
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+ * (BEEPER) PB6 | 9 10 | PB5 (SD_DET) GND | 9 10 | 5V
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+ * ------ ------
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+ * EXP1 EXP1
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+ *
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+ * Needs custom cable:
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+ *
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+ * Board Adapter Display
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+ * _________
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+ * EXP1-1 ----------- EXP1-10
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+ * EXP1-2 ----------- EXP1-9
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+ * SPI1-4 ----------- EXP1-6
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+ * EXP1-4 ----------- EXP1-5
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+ * SPI1-3 ----------- EXP1-2
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+ * EXP1-6 ----------- EXP1-4
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+ * EXP1-7 ----------- EXP1-8
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+ * EXP1-8 ----------- EXP1-3
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+ * SPI1-1 ----------- EXP1-1
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+ * EXP1-10 ----------- EXP1-7
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+ */
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+
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+ #define CLCD_SPI_BUS 1 // SPI1 connector
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+
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+ #define BEEPER_PIN EXP1_09_PIN
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+
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+ #define CLCD_MOD_RESET PA9
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+ #define CLCD_SPI_CS PB8
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+
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+#endif // TOUCH_UI_FTDI_EVE && LCD_FYSETC_TFT81050
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+
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+//
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+// SD Support
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+//
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+
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+#ifndef SDCARD_CONNECTION
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+ #define SDCARD_CONNECTION ONBOARD
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+#endif
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+
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+#if SD_CONNECTION_IS(ONBOARD)
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+ #define SD_DETECT_PIN PC3
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+#elif SD_CONNECTION_IS(LCD) && (BOTH(TOUCH_UI_FTDI_EVE, LCD_FYSETC_TFT81050) || IS_TFTGLCD_PANEL)
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+ #define SD_DETECT_PIN PB5
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+ #define SD_SS_PIN PA10
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+#elif SD_CONNECTION_IS(CUSTOM_CABLE)
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+ #error "SD CUSTOM_CABLE is not compatible with SKR Mini E3."
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+#endif
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+
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+#define ONBOARD_SPI_DEVICE 1 // SPI1 -> used only by HAL/STM32F1...
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+#define ONBOARD_SD_CS_PIN PA4 // Chip select for "System" SD card
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+
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+#define ENABLE_SPI1
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+#define SDSS ONBOARD_SD_CS_PIN
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+#define SD_SS_PIN ONBOARD_SD_CS_PIN
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+#define SD_SCK_PIN PA5
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+#define SD_MISO_PIN PA6
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+#define SD_MOSI_PIN PA7
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