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diff --git a/buildroot/share/PlatformIO/variants/STEVAL_F401VE/variant.h b/buildroot/share/PlatformIO/variants/STEVAL_F401VE/variant.h
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+/*
+ *******************************************************************************
+ * Copyright (c) 2017, STMicroelectronics
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ *    this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ *    this list of conditions and the following disclaimer in the documentation
+ *    and/or other materials provided with the distribution.
+ * 3. Neither the name of STMicroelectronics nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+ * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *******************************************************************************
+ */
+
+#ifndef _VARIANT_ARDUINO_STM32_
+#define _VARIANT_ARDUINO_STM32_
+/*----------------------------------------------------------------------------
+ *        Headers
+ *----------------------------------------------------------------------------*/
+
+#ifdef __cplusplus
+extern "C" {
+#endif // __cplusplus
+
+/*----------------------------------------------------------------------------
+ *        Pins
+ *----------------------------------------------------------------------------*/
+#ifdef ARDUINO_STEVAL
+
+
+/*----------------------------------------------------------------------------
+ *        Pins
+ *----------------------------------------------------------------------------*/
+// USART1_MAIN
+#define PA9  0 //TX
+#define PA10 1 //RX
+
+// WIFI (USART2)
+#define PD3   2 // CTS
+#define PD4   3 // RTS
+#define PD5   4 // TX
+#define PD6   5 // RX
+#define PB5   6 // WIFI_WAKEUP
+#define PE11  7 // WIFI_RESET
+#define PE12  8 // WIFI_BOOT
+
+// STATUS_LED
+#define PE1   9 // STATUS_LED
+
+// SPI USER
+#define PB12 10 // SPI_CS
+#define PB15 11 // SPI_MOSI
+#define PB14 12 // SPI_MISO
+#define PB13 13 // SPI_SCK
+
+// I2C USER
+#define PB7  14 // SDA
+#define PB6  15 // SCL
+
+// SPI
+#define PA4  16 // SPI_CS
+#define PA5  17 // SPI_SCK
+#define PA6  18 // SPI_MISO
+#define PA7  19 // SPI_MOSI
+
+// JTAG
+#define PA13 20 // JTAG_TMS/SWDIO
+#define PA14 21 // JTAG_TCK/SWCLK
+#define PB3  22 // JTAG_TDO/SWO
+
+// SDCARD
+#define PC8  23 // SDIO_D0
+#define PC9  24 // SDIO_D1
+#define PA15 25 // SD_CARD_DETECT
+#define PC10 26 // SDIO_D2
+#define PC11 27 // SDIO_D3
+#define PC12 28 // SDIO_CK
+#define PD2  29 // SDIO_CMD
+
+// OTG
+#define PA11 30 //OTG_DM
+#define PA12 31 //OTG_DP
+
+// IR/PROBE
+#define PD1  32 //IR_OUT
+#define PC1  33 //IR_ON
+
+// USER_PINS
+#define PD7  34 // USER3
+#define PB9  35 // USER1
+#define PE0  36 // USER2
+#define PB4  37 // USER4
+
+// USERKET
+#define PE7  38 // USER_BUTTON
+
+// ENDSTOPS
+#define PD8  39 // X_STOP
+#define PD9  40 // Y_STOP
+#define PD10 41 // Z_STOP
+#define PD11 42 // U_STOP
+#define PA8  43 // V_STOP
+#define PD0  44 // W_STOP
+
+// HEATERS
+#define PD13 45 // BED_HEAT_2
+#define PD14 46 // BED_HEAT_1
+#define PD15 47 // BED_HEAT_3
+#define PC7  48 // E1_HEAT_PWM
+#define PB0  49 // E2_HEAT_PWM
+#define PB1  50 // E3_HEAT_PWM
+
+// THERMISTOR
+#define PC2  51 // BED_THERMISTOR_1
+#define PC3  52 // BED_THERMISTOR_2
+#define PA3  53 // BED_THERMISTOR_3
+#define PA0  54 // E1_THERMISTOR
+#define PA1  55 // E2_THERMISTOR
+#define PA2  56 // E3_THERMISTOR
+
+// FANS
+#define PC4  57 // E1_FAN
+#define PC5  58 // E2_FAN
+#define PE8  59 // E3_FAN
+
+// X_MOTOR
+#define PE13 60 // X_RESET
+#define PE14 61 // X_PWM
+#define PE15 62 // X_DIR
+
+// Y_MOTOR
+#define PE10 63 // Y_RESET
+#define PB10 64 // Y_PWM
+#define PE9  65 // Y_DIR
+
+// Z_MOTOR
+#define PC15 66 // Z_RESET
+#define PC6  67 // Z_PWM
+#define PC0  68 // Z_DIR
+
+// E1_MOTOR
+#define PC14 69 // E1_RESET
+#define PC13 70 // E1_DIR
+#define PD12 71 // E1_PWM
+
+// E2_MOTOR
+#define PE4  72 // E2_RESET
+#define PE5  73 // E2_PWM
+#define PE6  74 // E2_DIR
+
+// E3_MOTOR
+#define PE3  75 // E3_RESET
+#define PE2  76 // E3_DIR
+#define PB8  77 // E3_PWM
+
+// This must be a literal
+#define NUM_DIGITAL_PINS        78
+// This must be a literal with a value less than or equal to to MAX_ANALOG_INPUTS
+#define NUM_ANALOG_INPUTS       6
+#define NUM_ANALOG_FIRST        51
+
+// On-board LED pin number
+#define LED_BUILTIN             PE1
+#define LED_GREEN               LED_BUILTIN
+
+// On-board user button
+#define USER_BTN                PE7
+
+// UART Definitions
+#define SERIAL_UART_INSTANCE    1 // Connected to ST-Link
+//#define SERIAL_UART_INSTANCE    2 // Connected to WIFI
+
+// Default pin used for 'Serial' instance (ex: ST-Link)
+// Mandatory for Firmata
+#if SERIAL_UART_INSTANCE == 1             // ST-Link & J23
+  #define PIN_SERIAL_RX         PA10
+  #define PIN_SERIAL_TX         PA9
+#elif SERIAL_UART_INSTANCE == 2         // WIFI interface
+  #define PIN_SERIAL2_RX        PD6
+  #define PIN_SERIAL2_TX        PD5
+#else
+  #error "Invalid setting for SERIAL_UART_INSTANCE."
+#endif
+
+// Timer Definitions
+#define TIMER_SERVO             TIM4  // TIMER_SERVO must be defined in this file
+#define TIMER_TONE              TIM5  // TIMER_TONE must be defined in this file
+
+/* SD detect signal */
+/*
+ * By default, R67 is not provided, so SD card detect is not used.
+ * Note: SD CD (pin 16 of expansion connector J23) can be connected
+ * to GND in order to be able to use SD_DETECT_PIN
+ */
+/*#define SD_DETECT_PIN           PA15*/
+
+/* HAL configuration */
+#define HSE_VALUE               25000000U
+
+/* Extra HAL modules */
+#define HAL_SD_MODULE_ENABLED
+
+#endif
+
+#ifdef __cplusplus
+} // extern "C"
+#endif
+/*----------------------------------------------------------------------------
+ *        Arduino objects - C++ only
+ *----------------------------------------------------------------------------*/
+
+#ifdef __cplusplus
+// These serial port names are intended to allow libraries and architecture-neutral
+// sketches to automatically default to the correct port name for a particular type
+// of use.  For example, a GPS module would normally connect to SERIAL_PORT_HARDWARE_OPEN,
+// the first hardware serial port whose RX/TX pins are not dedicated to another use.
+//
+// SERIAL_PORT_MONITOR        Port which normally prints to the Arduino Serial Monitor
+//
+// SERIAL_PORT_USBVIRTUAL     Port which is USB virtual serial
+//
+// SERIAL_PORT_LINUXBRIDGE    Port which connects to a Linux system via Bridge library
+//
+// SERIAL_PORT_HARDWARE       Hardware serial port, physical RX & TX pins.
+//
+// SERIAL_PORT_HARDWARE_OPEN  Hardware serial ports which are open for use.  Their RX & TX
+//                            pins are NOT connected to anything by default.
+#define SERIAL_PORT_MONITOR     Serial
+#define SERIAL_PORT_HARDWARE    Serial1
+#endif
+
+#endif // _VARIANT_ARDUINO_STM32_
+
+// PA0  54 // E1_THERMISTOR
+// PA1  55 // E2_THERMISTOR
+// PA2  56 // E3_THERMISTOR
+// PA3  53 // BED_THERMISTOR_3
+// PA4  16 // SPI_CS
+// PA5  17 // SPI_SCK
+// PA6  18 // SPI_MISO
+// PA7  19 // SPI_MOSI
+// PA8  43 // V_STOP
+// PA9   0 //TX
+// PA10  1 //RX
+// PA11 30 //OTG_DM
+// PA12 31 //OTG_DP
+// PA13 20 // JTAG_TMS/SWDIO
+// PA14 21 // JTAG_TCK/SWCLK
+// PA15 25 // SD_CARD_DETECT
+// PB0  49 // E2_HEAT_PWM
+// PB1  50 // E3_HEAT_PWM
+// PB3  22 // JTAG_TDO/SWO
+// PB4  37 // USER4
+// PB5   6 // WIFI_WAKEUP
+// PB6  15 // SCL
+// PB7  14 // SDA
+// PB8  77 // E3_PWM
+// PB9  35 // USER1
+// PB10 64 // Y_PWM
+// PB12 10 // SPI_CS
+// PB13 13 // SPI_SCK
+// PB14 12 // SPI_MISO
+// PB15 11 // SPI_MOSI
+// PC0  68 // Z_DIR
+// PC1  33 //IR_ON
+// PC2  51 // BED_THERMISTOR_1
+// PC3  52 // BED_THERMISTOR_2
+// PC4  57 // E1_FAN
+// PC5  58 // E2_FAN
+// PC6  67 // Z_PWM
+// PC7  48 // E1_HEAT_PWM
+// PC8  23 // SDIO_D0
+// PC9  24 // SDIO_D1
+// PC10 26 // SDIO_D2
+// PC11 27 // SDIO_D3
+// PC12 28 // SDIO_CK
+// PC13 70 // E1_DIR
+// PC14 69 // E1_RESET
+// PC15 66 // Z_RESET
+// PD0  44 // W_STOP
+// PD1  32 //IR_OUT
+// PD2  29 // SDIO_CMD
+// PD3   2 // CTS
+// PD4   3 // RTS
+// PD5   4 // TX
+// PD6   5 // RX
+// PD7  34 // USER3
+// PD8  39 // X_STOP
+// PD9  40 // Y_STOP
+// PD10 41 // Z_STOP
+// PD11 42 // U_STOP
+// PD12 71 // E1_PWM
+// PD13 45 // BED_HEAT_2
+// PD14 46 // BED_HEAT_1
+// PD15 47 // BED_HEAT_3
+// PE0  36 // USER2
+// PE1   9 // STATUS_LED
+// PE2  76 // E3_DIR
+// PE3  75 // E3_RESET
+// PE4  72 // E2_RESET
+// PE5  73 // E2_PWM
+// PE6  74 // E2_DIR
+// PE7  38 // USER_BUTTON
+// PE8  59 // E3_FAN
+// PE9  65 // Y_DIR
+// PE10 63 // Y_RESET
+// PE11  7 // WIFI_RESET
+// PE12  8 // WIFI_BOOT
+// PE13 60 // X_RESET
+// PE14 61 // X_PWM
+// PE15 62 // X_DIR