New board definition - Adafruit Feather STM32F405

README.md

@@ -112,6 +112,7 @@ User can add a STM32 based board following this [wiki](https://github.com/stm32d
 
 | Status | Generic STM32F4xx | Release | Comment |
 | :---: | --- | :---: | :--- |
+| :yellow_heart: | [Adafruit Feather STM32F405 Express](https://www.adafruit.com/product/4382) | **1.8.0** |  |
 | :green_heart: | BlackPill F401CC | *1.7.0* |  |
 | :green_heart: | [Black F407VET6](https://stm32-base.org/boards/STM32F407VET6-STM32-F4VE-V2.0) | *1.4.0* | VG/ZE/ZG in *1.5.0* |
 | :green_heart: | [Blue F407VET6 Mini](https://stm32-base.org/boards/STM32F407VET6-VCC-GND-Small) | *1.4.0* |  |

boards.txt

@@ -983,6 +983,14 @@ GenF4.menu.pnum.CoreBoard_F401RC.build.board=CoreBoard_F401RC
 GenF4.menu.pnum.CoreBoard_F401RC.build.product_line=STM32F401xC
 GenF4.menu.pnum.CoreBoard_F401RC.build.variant=CoreBoard_F401RC
 
+# Adafruit Feather STM32F405 board
+GenF4.menu.pnum.FEATHER_F405=Adafruit Feather STM32F405
+GenF4.menu.pnum.FEATHER_F405.upload.maximum_size=1048576
+GenF4.menu.pnum.FEATHER_F405.upload.maximum_data_size=131072
+GenF4.menu.pnum.FEATHER_F405.build.board=FEATHER_F405
+GenF4.menu.pnum.FEATHER_F405.build.product_line=STM32F405xx
+GenF4.menu.pnum.FEATHER_F405.build.variant=FEATHER_F405
+
 # Upload menu
 GenF4.menu.upload_method.swdMethod=STM32CubeProgrammer (SWD)
 GenF4.menu.upload_method.swdMethod.upload.protocol=0

variants/FEATHER_F405/PinNamesVar.h

@@ -0,0 +1,50 @@
+/* SYS_WKUP */
+#ifdef PWR_WAKEUP_PIN1
+SYS_WKUP1 = PA_0,
+#endif
+#ifdef PWR_WAKEUP_PIN2
+SYS_WKUP2 = NC,
+#endif
+#ifdef PWR_WAKEUP_PIN3
+SYS_WKUP3 = NC,
+#endif
+#ifdef PWR_WAKEUP_PIN4
+SYS_WKUP4 = NC,
+#endif
+#ifdef PWR_WAKEUP_PIN5
+SYS_WKUP5 = NC,
+#endif
+#ifdef PWR_WAKEUP_PIN6
+SYS_WKUP6 = NC,
+#endif
+#ifdef PWR_WAKEUP_PIN7
+SYS_WKUP7 = NC,
+#endif
+#ifdef PWR_WAKEUP_PIN8
+SYS_WKUP8 = NC,
+#endif
+/* USB */
+#ifdef USBCON
+USB_OTG_FS_SOF = PA_8,
+USB_OTG_FS_VBUS = PA_9,
+USB_OTG_FS_ID = PA_10,
+USB_OTG_FS_DM = PA_11,
+USB_OTG_FS_DP = PA_12,
+USB_OTG_HS_ULPI_D0 = PA_3,
+USB_OTG_HS_SOF = PA_4,
+USB_OTG_HS_ULPI_CK = PA_5,
+USB_OTG_HS_ULPI_D1 = PB_0,
+USB_OTG_HS_ULPI_D2 = PB_1,
+USB_OTG_HS_ULPI_D7 = PB_5,
+USB_OTG_HS_ULPI_D3 = PB_10,
+USB_OTG_HS_ULPI_D4 = PB_11,
+USB_OTG_HS_ID = PB_12,
+USB_OTG_HS_ULPI_D5 = PB_12,
+USB_OTG_HS_ULPI_D6 = PB_13,
+USB_OTG_HS_VBUS = PB_13,
+USB_OTG_HS_DM = PB_14,
+USB_OTG_HS_DP = PB_15,
+USB_OTG_HS_ULPI_STP = PC_0,
+USB_OTG_HS_ULPI_DIR = PC_2,
+USB_OTG_HS_ULPI_NXT = PC_3,
+#endif

variants/FEATHER_F405/ldscript.ld

@@ -0,0 +1,208 @@
+/*
+*****************************************************************************
+**
+
+**  File        : LinkerScript.ld
+**
+**
+**  Abstract    : Linker script for STM32F405RGTx series
+**                1024Kbytes FLASH and 128Kbytes RAM
+**
+**                Set heap size, stack size and stack location according
+**                to application requirements.
+**
+**                Set memory bank area and size if external memory is used.
+**
+**  Target      : STMicroelectronics STM32
+**
+**  Distribution: The file is distributed “as is,” without any warranty
+**                of any kind.
+**
+*****************************************************************************
+** @attention
+**
+** <h2><center>&copy; COPYRIGHT(c) 2019 STMicroelectronics</center></h2>
+**
+** 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.
+**
+*****************************************************************************
+*/
+
+/* Entry Point */
+ENTRY(Reset_Handler)
+
+/* Highest address of the user mode stack */
+_estack = 0x20000000 + LD_MAX_DATA_SIZE;    /* end of RAM */
+/* Generate a link error if heap and stack don't fit into RAM */
+_Min_Heap_Size = 0x200;      /* required amount of heap  */
+_Min_Stack_Size = 0x400; /* required amount of stack */
+
+/* Specify the memory areas */
+MEMORY
+{
+RAM (xrw)      : ORIGIN = 0x20000000, LENGTH = LD_MAX_DATA_SIZE
+CCMRAM (rw)      : ORIGIN = 0x10000000, LENGTH = 64K
+FLASH (rx)      : ORIGIN = 0x8000000 + LD_FLASH_OFFSET, LENGTH = LD_MAX_SIZE - LD_FLASH_OFFSET
+}
+
+/* Define output sections */
+SECTIONS
+{
+  /* The startup code goes first into FLASH */
+  .isr_vector :
+  {
+    . = ALIGN(4);
+    KEEP(*(.isr_vector)) /* Startup code */
+    . = ALIGN(4);
+  } >FLASH
+
+  /* The program code and other data goes into FLASH */
+  .text ALIGN(8):
+  {
+    . = ALIGN(4);
+    *(.text)           /* .text sections (code) */
+    *(.text*)          /* .text* sections (code) */
+    *(.glue_7)         /* glue arm to thumb code */
+    *(.glue_7t)        /* glue thumb to arm code */
+    *(.eh_frame)
+
+    KEEP (*(.init))
+    KEEP (*(.fini))
+
+    . = ALIGN(4);
+    _etext = .;        /* define a global symbols at end of code */
+  } >FLASH
+
+  /* Constant data goes into FLASH */
+  .rodata ALIGN(4):
+  {
+    . = ALIGN(4);
+    *(.rodata)         /* .rodata sections (constants, strings, etc.) */
+    *(.rodata*)        /* .rodata* sections (constants, strings, etc.) */
+    . = ALIGN(4);
+  } >FLASH
+
+  .ARM.extab   : { *(.ARM.extab* .gnu.linkonce.armextab.*) } >FLASH
+  .ARM : {
+    __exidx_start = .;
+    *(.ARM.exidx*)
+    __exidx_end = .;
+  } >FLASH
+
+  .preinit_array     :
+  {
+    PROVIDE_HIDDEN (__preinit_array_start = .);
+    KEEP (*(.preinit_array*))
+    PROVIDE_HIDDEN (__preinit_array_end = .);
+  } >FLASH
+  .init_array :
+  {
+    PROVIDE_HIDDEN (__init_array_start = .);
+    KEEP (*(SORT(.init_array.*)))
+    KEEP (*(.init_array*))
+    PROVIDE_HIDDEN (__init_array_end = .);
+  } >FLASH
+  .fini_array :
+  {
+    PROVIDE_HIDDEN (__fini_array_start = .);
+    KEEP (*(SORT(.fini_array.*)))
+    KEEP (*(.fini_array*))
+    PROVIDE_HIDDEN (__fini_array_end = .);
+  } >FLASH
+
+  /* used by the startup to initialize data */
+  _sidata = LOADADDR(.data);
+
+  /* Initialized data sections goes into RAM, load LMA copy after code */
+  .data : 
+  {
+    . = ALIGN(4);
+    _sdata = .;        /* create a global symbol at data start */
+    *(.data)           /* .data sections */
+    *(.data*)          /* .data* sections */
+
+    . = ALIGN(4);
+    _edata = .;        /* define a global symbol at data end */
+  } >RAM AT> FLASH
+
+  _siccmram = LOADADDR(.ccmram);
+
+  /* CCM-RAM section 
+  * 
+  * IMPORTANT NOTE! 
+  * If initialized variables will be placed in this section,
+  * the startup code needs to be modified to copy the init-values.  
+  */
+  .ccmram :
+  {
+    . = ALIGN(4);
+    _sccmram = .;       /* create a global symbol at ccmram start */
+    *(.ccmram)
+    *(.ccmram*)
+
+    . = ALIGN(4);
+    _eccmram = .;       /* create a global symbol at ccmram end */
+  } >CCMRAM AT> FLASH
+
+
+  /* Uninitialized data section */
+  . = ALIGN(4);
+  .bss :
+  {
+    /* This is used by the startup in order to initialize the .bss secion */
+    _sbss = .;         /* define a global symbol at bss start */
+    __bss_start__ = _sbss;
+    *(.bss)
+    *(.bss*)
+    *(COMMON)
+
+    . = ALIGN(4);
+    _ebss = .;         /* define a global symbol at bss end */
+    __bss_end__ = _ebss;
+  } >RAM
+
+  /* User_heap_stack section, used to check that there is enough RAM left */
+  ._user_heap_stack :
+  {
+    . = ALIGN(8);
+    PROVIDE ( end = . );
+    PROVIDE ( _end = . );
+    . = . + _Min_Heap_Size;
+    . = . + _Min_Stack_Size;
+    . = ALIGN(8);
+  } >RAM
+
+
+
+  /* Remove information from the standard libraries */
+  /DISCARD/ :
+  {
+    libc.a ( * )
+    libm.a ( * )
+    libgcc.a ( * )
+  }
+
+  .ARM.attributes 0 : { *(.ARM.attributes) }
+}
+
+

variants/FEATHER_F405/variant.cpp

@@ -0,0 +1,139 @@
+/*
+ *******************************************************************************
+ * 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.
+ *******************************************************************************
+ */
+
+#include "pins_arduino.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+// Pin number
+// This array allows to wrap Arduino pin number(Dx or x)
+// to STM32 PinName (PX_n)
+const PinName digitalPin[] = {
+  PB_11,  //D0
+  PB_10,
+  PB_3,
+  PB_4,
+  PB_5,
+  PC_7,
+  PC_6,
+  PA_15,  // D7
+  PC_0,   // D8
+  PB_8,
+  PB_9,
+  PC_3,
+  PC_2,
+  PC_1,   // D13
+  PB_7,   // D14 SDA
+  PB_6,   // D15 SCL
+  PA_4,   // D16 - A0
+  PA_5,
+  PA_6,
+  PA_7,
+  PC_4,
+  PC_5,
+  PA_3,   // D22 - A6
+  PB_13,  // D23 SCK
+  PB_14,  // D24 MISO
+  PB_15,  // D25 MOSI
+  PC_8,   // D26 SDIO
+  PC_9,
+  PC_10,
+  PC_11,
+  PC_12,
+  PD_2,
+  PB_12,  // D32 - SD Detect
+  PC_14,  // D33 - OSC32
+  PC_15,  // D34 - OSC32
+  PA_11,  // D35 D+
+  PA_12,  // D36 D-
+  PA_13,  // D37 SWDIO
+  PA_14,  // D38 SWCLK
+};
+
+#ifdef __cplusplus
+}
+#endif
+
+// ----------------------------------------------------------------------------
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+  * @brief  System Clock Configuration
+  * @param  None
+  * @retval None
+  */
+WEAK void SystemClock_Config(void)
+{
+
+  RCC_OscInitTypeDef RCC_OscInitStruct;
+  RCC_ClkInitTypeDef RCC_ClkInitStruct;
+
+  /**Configure the main internal regulator output voltage
+  */
+  __HAL_RCC_PWR_CLK_ENABLE();
+
+  __HAL_PWR_VOLTAGESCALING_CONFIG(PWR_REGULATOR_VOLTAGE_SCALE1);
+
+  /**Initializes the CPU, AHB and APB busses clocks
+  */
+  RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSE;
+  RCC_OscInitStruct.HSEState = RCC_HSE_ON;
+  RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;
+  RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSE;
+  RCC_OscInitStruct.PLL.PLLM = (HSE_VALUE / 1000000);
+  RCC_OscInitStruct.PLL.PLLN = 336;
+  RCC_OscInitStruct.PLL.PLLP = RCC_PLLP_DIV2;
+  RCC_OscInitStruct.PLL.PLLQ = 7;
+  if (HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK) {
+    _Error_Handler(__FILE__, __LINE__);
+  }
+
+  /**Initializes the CPU, AHB and APB busses clocks
+  */
+  RCC_ClkInitStruct.ClockType = RCC_CLOCKTYPE_HCLK | RCC_CLOCKTYPE_SYSCLK
+                                | RCC_CLOCKTYPE_PCLK1 | RCC_CLOCKTYPE_PCLK2;
+  RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_PLLCLK;
+  RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1;
+  RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV4;
+  RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV2;
+
+  if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_5) != HAL_OK) {
+    _Error_Handler(__FILE__, __LINE__);
+  }
+}
+
+#ifdef __cplusplus
+}
+#endif

variants/FEATHER_F405/variant.h

@@ -0,0 +1,167 @@
+/*
+ *******************************************************************************
+ * 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_
+
+#ifdef __cplusplus
+extern "C" {
+#endif // __cplusplus
+
+/*----------------------------------------------------------------------------
+ *        Pins
+ *----------------------------------------------------------------------------*/
+// External (left to right)
+// GND
+// VBAT
+// 5V
+#define PB11 0
+#define PB10 1
+#define PB3  2  // FLASH SCK
+#define PB4  3  // FLASH MISO
+#define PB5  4  // FLASH MOSI
+#define PC7  5
+#define PC6  6
+#define PA15 7  // FLASH CS
+
+#define PC0  8  // NeoPixel
+#define PB8  9
+#define PB9  10
+#define PC3  11
+#define PC2  12
+#define PC1  13
+
+#define PB7  14  // SDA
+#define PB6  15  // SCL
+
+#define PA4  16  // A0
+#define PA5  17  // A1
+#define PA6  18  // A2
+#define PA7  19  // A3
+#define PC4  20  // A4
+#define PC5  21  // A5
+#define PA3  22  // A6 - VDIV
+
+#define PB13 23  // SCK
+#define PB14 24  // MISO
+#define PB15 25  // MOSI
+
+#define PC8  26  // SDIO D0
+#define PC9  27  // SDIO D1
+#define PC10 28  // SDIO D2
+#define PC11 29  // SDIO D3
+#define PC12 30  // SDIO CLK
+#define PD2  31  // SDIO CMD
+#define PB12 32  // SD Detect
+
+
+#define PC14 33  // OSC32_IN
+#define PC15 34  // OSC32_OUT
+
+#define PA11 35  // USB_DM
+#define PA12 36  // USB_DP
+
+#define PA13 37  // SWDIO
+#define PA14 38  // SWCLK 
+
+// This must be a literal
+#define NUM_DIGITAL_PINS        39
+// This must be a literal with a value less than or equal to MAX_ANALOG_INPUTS
+#define NUM_ANALOG_INPUTS       7
+#define NUM_ANALOG_FIRST        16
+
+// On-board LED pin number
+#define LED_BUILTIN             PC1
+
+#define SD_DETECT_PIN           PB12
+
+// No user button
+
+// SPI Definitions
+#define PIN_SPI_MOSI            PB15
+#define PIN_SPI_MISO            PB14
+#define PIN_SPI_SCK             PB13
+#define PIN_SPI_SS              PA15
+
+// SPI FLASH
+#define PIN_SPI3_MOSI           PB5
+#define PIN_SPI3_MISO           PB4
+#define PIN_SPI3_SCK            PB3
+#define PIN_SPI3_SS             PA15
+
+// Timer Definitions
+// Use TIM6/TIM7 when possible as servo and tone don't need GPIO output pin
+#define TIMER_TONE              TIM6
+#define TIMER_SERVO             TIM7
+
+// UART Definitions
+// Define here Serial instance number to map on Serial generic name
+#define SERIAL_UART_INSTANCE    3
+
+// Default pin used for 'Serial' instance
+// Mandatory for Firmata
+#define PIN_SERIAL_RX           PB11
+#define PIN_SERIAL_TX           PB10
+
+/* HAL configuration */
+#define HSE_VALUE               12000000U
+
+/* Extra HAL modules */
+#define HAL_DAC_MODULE_ENABLED
+#define HAL_SD_MODULE_ENABLED
+
+#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_ */