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+/**
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+ * Marlin 3D Printer Firmware
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+ * Copyright (c) 2020 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 <http://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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+#ifndef BOARD_INFO_NAME
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+ #define BOARD_INFO_NAME "BTT SKR E3 Turbo"
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+#endif
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+
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+// Onboard I2C EEPROM
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+#define I2C_EEPROM
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+#define MARLIN_EEPROM_SIZE 0x1000 // 4KB (AT24C32)
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+
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+//
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+// Servos
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+//
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+#define SERVO0_PIN P1_23
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+
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+//
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+// TMC StallGuard DIAG pins
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+//
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+#define X_DIAG_PIN P1_29 // X-STOP
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+#define Y_DIAG_PIN P1_28 // Y-STOP
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+#define Z_DIAG_PIN P1_27 // Z-STOP
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+#define E0_DIAG_PIN P1_26 // E0DET
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+#define E1_DIAG_PIN P1_25 // E1DET
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+
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+//
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+// Limit Switches
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+#define X_STOP_PIN X_DIAG_PIN
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+#define Y_STOP_PIN Y_DIAG_PIN
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+#define Z_STOP_PIN Z_DIAG_PIN
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+
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+//
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+// Z Probe
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+//
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+#ifndef Z_MIN_PROBE_PIN
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+ #define Z_MIN_PROBE_PIN P1_22
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+#endif
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+
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+//
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+// Filament Runout Sensor
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+//
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+#define FIL_RUNOUT_PIN P1_26 // E0DET
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+#define FIL_RUNOUT2_PIN P1_25 // E1DET
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+
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+//
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+// Power Supply Control
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+//
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+#ifndef PS_ON_PIN
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+ #define PS_ON_PIN P1_21
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+#endif
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+
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+// LED driving pin
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+#define NEOPIXEL_PIN P1_24
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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 P1_20 // PWRDET
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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_STEP_PIN P1_04
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+#define X_DIR_PIN P1_08
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+#define X_ENABLE_PIN P1_00
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+#ifndef X_CS_PIN
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+ #define X_CS_PIN P1_01
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+#endif
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+
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+#define Y_STEP_PIN P1_14
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+#define Y_DIR_PIN P1_15
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+#define Y_ENABLE_PIN P1_09
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+#ifndef Y_CS_PIN
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+ #define Y_CS_PIN P1_10
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+#endif
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+
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+#define Z_STEP_PIN P4_29
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+#define Z_DIR_PIN P4_28
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+#define Z_ENABLE_PIN P1_16
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+#ifndef Z_CS_PIN
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+ #define Z_CS_PIN P1_17
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+#endif
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+
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+#define E0_STEP_PIN P2_06
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+#define E0_DIR_PIN P2_07
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+#define E0_ENABLE_PIN P0_04
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+#ifndef E0_CS_PIN
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+ #define E0_CS_PIN P0_05
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+#endif
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+
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+#define E1_STEP_PIN P2_11
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+#define E1_DIR_PIN P2_12
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+#define E1_ENABLE_PIN P0_21
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+#ifndef E1_CS_PIN
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+ #define E1_CS_PIN P0_22
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+#endif
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+
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+#if HAS_TMC_UART
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+ /**
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+ * TMC2208/TMC2209 stepper drivers
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+ *
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+ * Hardware serial communication ports.
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+ * If undefined software serial is used according to the pins below
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+ */
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+
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+ //
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+ // Software serial
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+ //
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+ #define X_SERIAL_TX_PIN P1_01
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+ #define X_SERIAL_RX_PIN P1_01
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+
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+ #define Y_SERIAL_TX_PIN P1_10
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+ #define Y_SERIAL_RX_PIN P1_10
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+
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+ #define Z_SERIAL_TX_PIN P1_17
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+ #define Z_SERIAL_RX_PIN P1_17
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+
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+ #define E0_SERIAL_TX_PIN P0_05
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+ #define E0_SERIAL_RX_PIN P0_05
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+
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+ #define E1_SERIAL_TX_PIN P0_22
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+ #define E1_SERIAL_RX_PIN P0_22
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+
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+ // Reduce baud rate to improve software serial reliability
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+ #define TMC_BAUD_RATE 19200
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+#endif
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+
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+//
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+// TMC Low Power Standby pins
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+//
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+#define X_STDBY_PIN P3_26
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+#define Y_STDBY_PIN P3_25
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+#define Z_STDBY_PIN P1_18
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+#define E0_STDBY_PIN P1_19
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+#define E1_STDBY_PIN P2_13
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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 P0_24
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+#define TEMP_1_PIN P0_23
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+//#define TEMP_2_PIN P1_30 // Onboard thermistor
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+#define TEMP_BED_PIN P0_25
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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 P2_03 // EXTRUDER 0
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+#define HEATER_1_PIN P2_04 // EXTRUDER 1
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+#define HEATER_BED_PIN P2_05 // BED
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+#define FAN_PIN P2_01
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+#define FAN1_PIN P2_02
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+
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+//
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+// USB connect control
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+//
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+//#define USB_CONNECT_PIN P0_29
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+//#define USB_CONNECT_INVERTING false
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+
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+/**
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+ * _____
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+ * 5V | 1 2 | GND
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+ * (LCD_EN) P0_18 | 3 4 | P0_17 (LCD_RS)
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+ * (LCD_D4) P0_15 | 5 6 P0_20 (BTN_EN2)
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+ * RESET | 7 8 | P0_19 (BTN_EN1)
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+ * (BTN_ENC) P0_16 | 9 10| P2_08 (BEEPER)
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+ * -----
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+ * EXP
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+ */
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+
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+#define EXPA1_03_PIN P0_18
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+#define EXPA1_04_PIN P0_17
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+#define EXPA1_05_PIN P0_15
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+#define EXPA1_06_PIN P0_20
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+#define EXPA1_07_PIN -1
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+#define EXPA1_08_PIN P0_19
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+#define EXPA1_09_PIN P0_16
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+#define EXPA1_10_PIN P2_08
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+
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+#if HAS_SPI_LCD
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+
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+ #if ENABLED(CR10_STOCKDISPLAY)
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+
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+ #define BEEPER_PIN EXPA1_10_PIN
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+
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+ #define BTN_EN1 EXPA1_08_PIN
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+ #define BTN_EN2 EXPA1_06_PIN
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+ #define BTN_ENC EXPA1_09_PIN
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+
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+ #define LCD_PINS_RS EXPA1_04_PIN
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+ #define LCD_PINS_ENABLE EXPA1_03_PIN
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+ #define LCD_PINS_D4 EXPA1_05_PIN
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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_E3_TURBO.h' for details. Comment out this line to continue."
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+
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+ #define LCD_PINS_RS EXPA1_05_PIN
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+ #define LCD_PINS_ENABLE EXPA1_09_PIN
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+ #define LCD_PINS_D4 EXPA1_04_PIN
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+ #define LCD_PINS_D5 EXPA1_06_PIN
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+ #define LCD_PINS_D6 EXPA1_08_PIN
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+ #define LCD_PINS_D7 EXPA1_10_PIN
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+ #define ADC_KEYPAD_PIN P1_23 // 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_EN1 EXPA1_08_PIN
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+ #define BTN_EN2 EXPA1_06_PIN
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+ #define BTN_ENC EXPA1_09_PIN
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+
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+ #define DOGLCD_CS EXPA1_04_PIN
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+ #define DOGLCD_A0 EXPA1_05_PIN
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+ #define DOGLCD_SCK EXPA1_10_PIN
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+ #define DOGLCD_MOSI EXPA1_03_PIN
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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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+ #else
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+
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+ #error "Only ZONESTAR_LCD, MKS_MINI_12864, ENDER2_STOCKDISPLAY, and CR10_STOCKDISPLAY are currently supported on the BTT_SKR_E3_TURBO."
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+
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+ #endif
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+
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+#endif // HAS_SPI_LCD
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+
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+//
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+// SD Support
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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 P2_00
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+ #define SCK_PIN P0_07
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+ #define MISO_PIN P0_08
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+ #define MOSI_PIN P0_09
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+ #define SS_PIN P0_06
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+#elif SD_CONNECTION_IS(CUSTOM_CABLE)
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+ #error "SD CUSTOM_CABLE is not compatible with SKR E3 Turbo."
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+#endif
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+
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+#define ON_BOARD_SPI_DEVICE 1 // SPI1
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