This page discusses issues unique to NuttX configurations for the STMicro STM32H747I-DISCO development board featuring the STM32H747I MCU. The STM32H747I is a Cortex-M7 and -M4 dual core with 2MBytes Flash memory and 1MByte SRAM. The board features:

  • On-board ST-Link v3E for programming and debugging,

  • 4 color user LEDs

  • One pushbuttons (user and reset)

  • Four-way joystick controller with select key

  • 32.768 kHz crystal oscillator

  • USB OTG HS with Micro-AB connectors

  • Ethernet connector compliant with IEEE-802.3-2002

  • Board connectors: - Camera - USB with Micro-AB - SWD - Ethernet RJ45 - Arduino Uno V3 - Pmod - STMod+

Refer to the website for further information about this board (search keyword: STM32H747I-DISCO)

Serial Console

  1. Virtual Console.

    The virtual console uses Serial Port 1 (USART1).

    VCOM Signal






    These signals are internally connected to the on board ST-Link.

    The virtual console is the default serial console in all configurations unless otherwise stated in the description of the configuration.


Information Common to All Configurations

Each STM32H747I-DISCO configuration is maintained in a sub-directory and can be selected as follow:

tools/ [options] stm32h747i-disco:<subdir>

Where options should specify the host build platform (-l for Linux, -c for Cygwin under Windows, etc.). Try ‘tools/ -h’ for the complete list of options.

Before starting the build, make sure that (1) your PATH environment variable includes the correct path to your toolchain, and (2) you have the correct toolchain selected in the configuration.

And then build NuttX by simply typing the following. At the conclusion of the make, the nuttx binary will reside in an ELF file called, simply, nuttx.:


The <subdir> that is provided above as an argument to the tools/ must be is one of the following.


  1. These configurations use the mconf-based configuration tool. To change any of these configurations using that tool, you should:

    1. Build and install the kconfig-mconf tool. See nuttx/README.txt see additional README.txt files in the NuttX tools repository.

    2. Execute ‘make menuconfig’ in nuttx/ in order to start the reconfiguration process.

  2. Unless stated otherwise, all configurations generate console

    output on the ST-Link VCOM, USART1.

  3. Unless otherwise stated, the configurations are setup for Linux by default:

    Build Setup:

    CONFIG_HOST_LINUX=y : Linux host operating system

  4. All of these configurations use the general arm-none-eabi toolchain for Linux That toolchain selection can easily be reconfigured using ‘make menuconfig’.

  5. These configurations all assume that you are loading code using something like the ST-Link v3E JTAG. None of these configurations are setup to use the DFU bootloader but should be easily reconfigured to use that bootloader if so desired.

Configuration Sub-directories


This configuration provides a basic NuttShell configuration (NSH) for the board. The default console is the VCOM on USART1.