Generate a Makefile project using CubeMX. Use a development board and initialize all peripherals to their default mode (to generate all HAL files)

Outside the generated directory (ex. BSP), create a CMakeLists.txt and arm-none-eabi-gcc.cmake files.

Populate the CMakeLists.txt file using the generated Makefile (basically copying all necessary files).

If cloning this project, adapt the above two files accordingly to your MCU. Pay attention to :

• Project name
• Src and Inc paths
• Name of startup file
• Name of linker file
• Compiler definition for the chosen board / MCU

Create a build folder (ex. cmake-build-debug) and cd to that folder

Run cmake -G "MinGW Makefiles" -DCMAKE_TOOLCHAIN_FILE=../arm-none-eabi-gcc.cmake -DCMAKE_BUILD_TYPE=Debug .. (or MSYS Makefiles)

Then, run cmake --build . -- -j 4

You should obtain .bin and .hex files for your target