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)  {  }}