在启动文件中修改 

					IMPORT rt_hw_hard_fault_exceptionEXPORT HardFault_Handler
HardFault_Handler    PROC; get current contextTST     lr, #0x04               ; if(!EXC_RETURN[2])ITE     EQMRSEQ   r0, msp                 ; [2]=0 ==> Z=1, get fault context from handler.MRSNE   r0, psp                 ; [2]=1 ==> Z=0, get fault context from thread.STMFD   r0!, {r4 - r11}         ; push r4 - r11 registerSTMFD   r0!, {lr}               ; push exec_return registerTST     lr, #0x04               ; if(!EXC_RETURN[2])ITE     EQMSREQ   msp, r0                 ; [2]=0 ==> Z=1, update stack pointer to MSP.MSRNE   psp, r0                 ; [2]=1 ==> Z=0, update stack pointer to PSP.PUSH    {lr}BL      rt_hw_hard_fault_exceptionPOP     {lr}ORR     lr, lr, #0x04BX      lrENDP

 

调用的硬件中断函数 

#define rt_uint32_t unsigned int
struct exception_info
{rt_uint32_t exc_return;rt_uint32_t r4;rt_uint32_t r5;rt_uint32_t r6;rt_uint32_t r7;rt_uint32_t r8;rt_uint32_t r9;rt_uint32_t r10;rt_uint32_t r11;rt_uint32_t r0;rt_uint32_t r1;rt_uint32_t r2;rt_uint32_t r3;rt_uint32_t r12;rt_uint32_t lr;rt_uint32_t pc;rt_uint32_t psr;
};/** fault exception handler*/
void rt_hw_hard_fault_exception(struct exception_info * exception_info)
{unsigned int *app_sp;int i;app_sp = (unsigned int *)(exception_info + 1);  /* context + 16*4 */printf("psr: 0x%08x\r\n", exception_info->psr);printf("r00: 0x%08x\r\n", exception_info->r0);printf("r01: 0x%08x\r\n", exception_info->r1);printf("r02: 0x%08x\r\n", exception_info->r2);printf("r03: 0x%08x\r\n", exception_info->r3);printf("r04: 0x%08x\r\n", exception_info->r4);printf("r05: 0x%08x\r\n", exception_info->r5);printf("r06: 0x%08x\r\n", exception_info->r6);printf("r07: 0x%08x\r\n", exception_info->r7);printf("r08: 0x%08x\r\n", exception_info->r8);printf("r09: 0x%08x\r\n", exception_info->r9);printf("r10: 0x%08x\r\n", exception_info->r10);printf("r11: 0x%08x\r\n", exception_info->r11);printf("r12: 0x%08x\r\n", exception_info->r12);printf(" lr: 0x%08x\r\n", exception_info->lr);printf(" pc: 0x%08x\r\n", exception_info->pc);printf("stacks: \r\n");i = 0;for (i = 0; i < 1024; ){printf("%08x ", *app_sp);app_sp++;i++;if (i % 16 == 0)printf("\r\n");}printf("\r\n");while (1);
}

 

 

fromelf  --text  -a -c  --output=xxx.dis  Objects\xxx.axf