[Hard fault] devo8-v4.0.1 R0 = 00000000 R1 = 00000000 R2 = 08028a0c R3 = 666f7800 R12 = 00000050 LR [R14] (subroutine call return address) = 08015e07 PC [R15] (program counter) = 666f7800 PSR = 40000000 BFAR = e000ed38 CFSR = 00000100 HFSR = 40000000 DFSR = 00000000 AFSR = 00000000 SCB_SHCSR = 00000000 Top of Stack:2000c000 Stack Detect:2000bf78 Backtrace: 2000bf8c : 08015e07 2000bfa4 : 0801615d 2000bfb4 : 0800a411 2000bfcc : 0800a473 2000bfec : 0800b32b 2000bff4 : 0800b439 Done