040000 tree 2feebdf471b8fc1d2d59482f3a16ffc18c1a2651	cmsis_rtos_v1
040000 tree 923f096289eff9112a1e3512fa51f5d27819e4a5	cmsis_rtos_v2
100644 blob 1be238d794c924534021e6b8648b6878369158c4	portability.rst