How do I know my board stm32cube.variant?

ubaldo.tiberi · January 13, 2024, 8:37am

How do I know all the possible choices for stm32cube.variant?
At the moment I am using the following:

board_build.stm32cube.variant = STM32F4xx_Nucleo

but I am not sure if it is correct (I have a Nucleo F446RE).

maxgerhardt · January 15, 2024, 7:40pm

Look at how the builder script uses the value.

github.com

platformio/platform-ststm32/blob/6dbc7b75ee11904c7d3973a939a6261a2919bbf6/builder/frameworks/stm32cube.py#L348-L353


      
          if "build.stm32cube.variant" in board:
              bsp_variant_dir = os.path.join(
                  FRAMEWORK_DIR, "Drivers", "BSP", board.get("build.stm32cube.variant")
              )
              if os.path.isdir(bsp_variant_dir):
                  build_custom_lib(os.path.join(bsp_variant_dir), {"name": "FrameworkVariantBSP"})

github.com

platformio/platform-ststm32/blob/6dbc7b75ee11904c7d3973a939a6261a2919bbf6/builder/frameworks/stm32cube.py#L45-L45


      
          FRAMEWORK_DIR = platform.get_package_dir("framework-stm32cube%s" % MCU[5:7])

So, you look into the package for your board, e.g., framework-stm32cubef4, go into the Drivers/BSP folder and look what kind of folders there are. These are your possible choices.

The general package folder for PlatformIO is in C:\Users\<user>\.platformio\packages.