040000 tree 8e21743b77806a1d50e0e1d23a408fbae5b46bbe	cmsis_rtos_v1
040000 tree 3e05c22ca877554f94c5d257f215b8251fe5130b	cmsis_rtos_v2
100644 blob 1be238d794c924534021e6b8648b6878369158c4	portability.rst