How to build the project

This is a short-version explaining key steps to build project with CMake in VSCode or directly in shell.

Pre-requisites

For successful compilation:

CMake and Ninja-build tools installed and available in environment path
ARM None Eabi GCC toolchain installed and available in environment path - if you have installed STM32CubeIDE, you have GCC already installed there - find it in directory and add it to env path

To further download the built project to STM32 hardware:

STM32CubeProgrammer tool needs to be installed with bin folder in environment path - to have access to STM32_Programmer_CLI command - if you have installed STM32CubeIDE, you have GCC already installed there - find it in directory and add it to env path

For debugging from inside VSCode

ST GDB-Server tool needs to be installed with bin folder in environment path - you get it together with STM32CubeIDE package

Open terminal window in folder where CMakeLists.txt for your project is located
Run cmake --preset Debug to generate build system for ninja using Debug preset, that comes with the default CMakePresets.json file
Run cmake --build --preset Debug to actually invoke ninja-build and compile with GCC
Go to build/Debug folder - you will find your .elf file there (only if build is a pass). This is default build directory for Debug preset that comes with the project
Clean the project with cmake --build --preset Debug --target clean