Arduino Portenta H7 (M7 core)


Platform ST STM32: The STM32 family of 32-bit Flash MCUs based on the ARM Cortex-M processor is designed to offer new degrees of freedom to MCU users. It offers a 32-bit product range that combines very high performance, real-time capabilities, digital signal processing, and low-power, low-voltage operation, while maintaining full integration and ease of development.

Microcontroller STM32H747XIH6
Frequency 480MHz
Flash 768KB
RAM 511.35KB
Vendor Arduino


Please use portenta_h7_m7 ID for board option in “platformio.ini” (Project Configuration File):

platform = ststm32
board = portenta_h7_m7

You can override default Arduino Portenta H7 (M7 core) settings per build environment using board_*** option, where *** is a JSON object path from board manifest portenta_h7_m7.json. For example, board_build.mcu, board_build.f_cpu, etc.

platform = ststm32
board = portenta_h7_m7

; change microcontroller
board_build.mcu = stm32h747xih6

; change MCU frequency
board_build.f_cpu = 480000000L


Arduino Portenta H7 (M7 core) supports the next uploading protocols:

  • cmsis-dap
  • dfu
  • jlink
  • mbed
  • stlink

Default protocol is dfu

You can change upload protocol using upload_protocol option:

platform = ststm32
board = portenta_h7_m7

upload_protocol = dfu


Debugging - “1-click” solution for debugging with a zero configuration.


You will need to install debug tool drivers depending on your system. Please click on compatible debug tool below for the further instructions and configuration information.

You can switch between debugging Tools & Debug Probes using debug_tool option in “platformio.ini” (Project Configuration File).

Arduino Portenta H7 (M7 core) does not have on-board debug probe and IS NOT READY for debugging. You will need to use/buy one of external probe listed below.

Compatible Tools On-board Default


Name Description
Arduino Arduino Wiring-based Framework allows writing cross-platform software to control devices attached to a wide range of Arduino boards to create all kinds of creative coding, interactive objects, spaces or physical experiences