040000 tree 504d6249a0fc75987a16f4d436875528192796e3	arch
100644 blob 818e5c461930c92aecf8c240f1f64bccf03726f5	hal_bsp.c
100644 blob ebee93dcc3838f56a47e0b3c0a4f3392ddc3d57c	system_stm32f4xx.c