STM32 without CubeIDE

Code for the blog post series "STM32 without CubeIDE" at https://kleinembedded.com

• Part 1: The bare necessities
• Part 2: CMSIS, make and clock configuration
• Part 3: The C Standard Library and printf
• Part 4: CMake, FPU and STM32 libraries

Initializing submodules

From part 4 of this series, the official STM32CubeF4 package is added as a git submodule. This makes it easy to get the newest updates and bugfixes whenever a new version is published.

After cloning the stm32-without-cubeide repository, initialize the top-level submodule:

git submodule update --init

Enter the submodule and initialize the CMSIS device driver and the HAL/LL library:

cd vendor/STM32CubeF4
git submodule update --init Drivers/CMSIS/Device/ST/STM32F4xx/ Drivers/STM32F4xx_HAL_Driver/

In order to update STM32CubeF4 to the newest version, simply navigate to the submodule's root directory, pull from remote and update the (already initialized) submodules:

cd vendor/STM32CubeF4
git pull origin master
git submodule update --recursive

Building with CMake

After cloning the repository and initializing the submodules as described above, you can configure and build the project with CMake from the root project directory:

cmake -Bbuild -DCMAKE_TOOLCHAIN_FILE=cmake/stm32f410rb.cmake
cmake --build build

Then flash the program to the target with:

cmake --build build --target flash