STM32 進行軟件復位的方法

platform：stm32f103xx
include：core_cm3.h

/** \brief System Reset \details Initiates a system reset request to reset the MCU. */
__NO_RETURN __STATIC_INLINE void __NVIC_SystemReset(void)
{
  __DSB();                                                          /* Ensure all outstanding memory accesses included buffered write are completed before reset */
  SCB->AIRCR  = (uint32_t)((0x5FAUL << SCB_AIRCR_VECTKEY_Pos)    |
                           (SCB->AIRCR & SCB_AIRCR_PRIGROUP_Msk) |
                            SCB_AIRCR_SYSRESETREQ_Msk    );         /* Keep priority group unchanged */
  __DSB();                                                          /* Ensure completion of memory access */

  for(;;)                                                           /* wait until reset */
  {
    __NOP();
  }
}

/** \brief Set Fault Mask \details Assigns the given value to the Fault Mask register. \param [in] faultMask Fault Mask value to set */
__STATIC_INLINE void __set_FAULTMASK(uint32_t faultMask)
{
  register uint32_t __regFaultMask       __ASM("faultmask");
  __regFaultMask = (faultMask & (uint32_t)1U);
}

直接調用soft_reset即可，親測有效。

void soft_reset(void)
{
	// 關閉所有中斷
    __set_FAULTMASK(1); 
    // 復位
    NVIC_SystemReset(); 
}