uint32_t tmpreg = 0;
tmpreg = PWR->CR1;
tmpreg &= (uint32_t)~(PWR_CR1_LPDS);
tmpreg |= PWR_MAINREGULATOR_ON;
PWR->CR1 = tmpreg;
MODIFY_REG(PWR->CR1, PWR_CR1_SVOS, PWR_REGULATOR_SVOS_SCALE5); //VOS等级
CLEAR_BIT(PWR->CR1, PWR_CR1_FLPS); //flash on
SET_BIT(PWR->CPUCR, PWR_CPUCR_PDDS_D1); //D1_Standby
CLEAR_BIT(PWR-> CPUCR, PWR_CPUCR_PDDS_D2); //D2STOP
CLEAR_BIT(PWR->CPUCR, PWR_CPUCR_PDDS_D3); //D3STOP
SCB->SCR |= SCB_SCR_SLEEPDEEP_Msk;
__DSB();
__ISB();
__WFI(); //进入停机模式
SCB->SCR &= (uint32_t)~((uint32_t)SCB_SCR_SLEEPDEEP_Msk);
stm32h743II,在主函数里烧录了这个程序,然后芯片下载不了东西了。BOOT接1按住复位点下载的方法也没用,请问怎么才能让芯片下程序