This video describes the basic of FreeRTOS applied to STM32 architectures.
You can find the presented document here:
https://www.youtube.com/redirect?event=video_description&redir_token=QUFFLUhqbW03M1M2RHI3eFdOZ05XV3NDVGFQVlJoQWI5UXxBQ3Jtc0ttNXBoNEh5a2xxN3dnZ3g4RVpSSmptUjMtQmwzc3kxSVpRLVZaSVlRVGZZVE5taW9YcXRxZEY4aHFsbml4MzNYNFktc0JfM3lSUWRHdUVyZTM1U0t0MEU0bzJzWm9BcS1UeXBZRmRfVTBhZTdEblBDWQ&q=https%3A%2F%2Fdrive.google.com%2Fopen%3Fid%3D1vj2MYBeFF7nZz2WIb9_njcO7tiFsoqsg
Link the the official English tutorials:
https://www.youtube.com/watch?v=QGVAayFI5ZQ