(七)嵌入式系统异常程序远程定位

void hard_fault_lr_pc(U32 *usHardFault)

{

usStack_R14 = usHardFault[5];

usStack_R15 = usHardFault[6];

BKP_WriteBackupRegister(BKP_DR3, usHardFault[5]>>16);

BKP_WriteBackupRegister(BKP_DR4, usHardFault[5]&0xffff);

BKP_WriteBackupRegister(BKP_DR5, usHardFault[6]>>16);

BKP_WriteBackupRegister(BKP_DR6, usHardFault[6]&0xffff);

}

__ASM uint32_t __HardFaultException (void)

{

extern hard_fault_lr_pc

TST LR,#4

ITE EQ

MRSEQ R0, MSP

MRSNE R0, PSP

B hard_fault_lr_pc

}

/**

* @brief This function handles Hard Fault exception.

* @param None

* @retval None

*/

void HardFault_Handler(void)

{

//BKP_WriteBackupRegister(BKP_DR2, HARDFAULT);

__HardFaultException();

while(1)

{

}

}