之前文章说了原理，这里把最终实现的代码总结：
IAR
1 void hard_fault_handler_c (unsigned int * hardfault_args) 2 { 3 unsigned int stacked_r0; 4 unsigned int stacked_r1; 5 unsigned int stacked_r2; 6 unsigned int stacked_r3; 7 unsigned int stacked_r12; 8 unsigned int stacked_lr; 9 unsigned int stacked_pc; 10 unsigned int stacked_psr; 11 12 stacked_r0 = ((unsigned long) hardfault_args[0]); 13 stacked_r1 = ((unsigned long) hardfault_args[1]); 14 stacked_r2 = ((unsigned long) hardfault_args[2]); 15 stacked_r3 = ((unsigned long) hardfault_args[3]); 16 17 stacked_r12 = ((unsigned long) hardfault_args[4]); 18 stacked_lr = ((unsigned long) hardfault_args[5]); 19 stacked_pc = ((unsigned long) hardfault_args[6]); 20 stacked_psr = ((unsigned long) hardfault_args[7]); 21 22 printf ("\r\n[Hard fault handler - all numbers in hex]\r\n"); 23 printf ("R0=%x\r\n",stacked_r0); 24 printf ("R1=%x\r\n",stacked_r1); 25 printf ("R2=%x\r\n",stacked_r2); 26 printf ("R3=%x\r\n",stacked_r3); 27 printf ("R12=%x\r\n",stacked_r12); 28 printf ("LR[R14]=%x subroutine call return address\r\n",stacked_lr); 29 printf ("PC[R15]=%x program counter\r\n",stacked_pc); 30 printf ("PSR=%x\r\n",stacked_psr); 31 printf ("BFAR=%x\r\n",(*((volatile unsigned long *)(0xE000ED38)))); 32 printf ("CFSR=%x\r\n",(*((volatile unsigned long *)(0xE000ED28)))); 33 printf ("HFSR=%x\r\n",(*((volatile unsigned long *)(0xE000ED2C)))); 34 printf ("DFSR=%x\r\n",(*((volatile unsigned long *)(0xE000ED30)))); 35 printf ("AFSR=%x\r\n",(*((volatile unsigned long *)(0xE000ED3C)))); 36 printf ("SCB_SHCSR=%x\r\n", SCB->SHCSR); 37 38 39 while (1); 40 }