040000 tree 504d6249a0fc75987a16f4d436875528192796e3	arch
100644 blob fbc6ef2108c5be7ce3226b41c873123ed0a77a73	hal_bsp.c
100644 blob 49d6ef3e31475f04419954034a392dd4e78241a9	system_stm32f4xx.c