040000 tree 2feebdf471b8fc1d2d59482f3a16ffc18c1a2651	cmsis_rtos_v1
040000 tree 558a1d1e52a768014f4369793528bdc31b819054	cmsis_rtos_v2
100644 blob 1be238d794c924534021e6b8648b6878369158c4	portability.rst