040000 tree 1670c0f025dc13bc30de0cc9d109415581ab59a9	cmsis_rtos_v1
040000 tree 892e3530ebb803b8e317ee114e52d3d18304d13a	cmsis_rtos_v2
100644 blob 1be238d794c924534021e6b8648b6878369158c4	portability.rst