[Hard fault] devo7e-v4.0.1 R0 = 0800d91b R1 = 00000000 R2 = 00000000 R3 = 00000002 R12 = 20003ef0 LR [R14] (subroutine call return address) = 0800d91b PC [R15] (program counter) = 0800d8be PSR = 21000000 BFAR = 18462ced CFSR = 00008200 HFSR = 40000000 DFSR = 00000000 AFSR = 00000000 SCB_SHCSR = 00000000 Top of Stack:20004000 Stack Detect:20001510 Backtrace: 20001510 : 0800d91b 20001524 : 0800d91b 20001530 : 0800d91b 20001534 : 0800d91b 20001544 : 0800d93b 20001554 : 0800d93b 20001564 : 0800d93b 20001574 : 0800d93b 20001584 : 0800d93b 20001594 : 0800d93b 200015a4 : 0800d93b 200015b4 : 0800d93b 200015c4 : 0800d93b 200015d4 : 0800d93b 200015e4 : 0800d93b 200015f4 : 0800d93b 20001604 : 0800d93b 20001614 : 0800d93b 20001624 : 0800d93b 20001634 : 0800d93b Done