[Hard fault handler00000000 R0 = 00000001 R1 = 00000480 R2 = 200007b0 R3 = 0000001d R12 = 0000001a LR [R14] (subroutine call return address) = 0800b199 PC [R15] (program counter) = 0800550c PSR = 01000000 BFAR = 2000505d CFSR = 00008200 HFSR = 40000000 DFSR = 00000000 AFSR = 00000000 SCB_SHCSR = 00000000 impure_ptr = 0801bb87 00000026 20000082 0000001a