The OBC0 is based on a Arm Cortex M4 and uses a STM32 Nucleo-F446RE development board. The documentation for the Nucleo board is here. This Nucleo board wasn't chosen for a specific reason, and it is possible in future we will switch a different one. The Nucleo development board family was selected for ease of development and having a built in ST-Link programmer.
The repository is configured to build with the GNU Arm Embedded Toolchain and CMake. In a Unix-like environment, open a termina, navigate to the root of the repository and run:
mkdir build && cd build
cmake -DCMAKE_TOOLCHAIN_FILE=../arm-none-eabi-gcc.cmake -DCMAKE_BUILD_TYPE=Debug ..
cmake --build . -- -j 4
To flash the executable to the Nucleo:
sudo st-flash write <name-of-executable>.bin 0x8000000
To get the stm32f4xx_hal_i2c driver to compile, it was necessary to define
a HAL_I2C_WRONG_START variable which was set arbitrarily to 0. This seems to
be a known issue
with the library.