STM32F4XX系列中,复位函数在core_cm4.h文件中:
- /**
- \brief System Reset
- \details Initiates a system reset request to reset the MCU.
- */
- __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();
- }
- }
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