Solved
When I used NUCLEO-F446RE to debug the STM32 program, I found that the program execution was stuck for a long time in the "LL_PWR_IsActiveFlagVOS()" function. How can I solve this problem?
The clock initialization code is generated by STM32CubeIDE
void SystemClock_Config(void)
{
LL_FLASH_SetLatency(LL_FLASH_LATENCY_5);
while(LL_FLASH_GetLatency()!= LL_FLASH_LATENCY_5)
{
}
LL_PWR_SetRegulVoltageScaling(LL_PWR_REGU_VOLTAGE_SCALE1);
while (LL_PWR_IsActiveFlag_VOS() == 0)
{
}
LL_PWR_EnableOverDriveMode();
LL_RCC_HSE_EnableBypass();
LL_RCC_HSE_Enable();
/* Wait till HSE is ready */
while(LL_RCC_HSE_IsReady() != 1)
{
}
LL_RCC_PLL_ConfigDomain_SYS(LL_RCC_PLLSOURCE_HSE, LL_RCC_PLLM_DIV_4, 180, LL_RCC_PLLP_DIV_2);
LL_RCC_PLL_Enable();
/* Wait till PLL is ready */
while(LL_RCC_PLL_IsReady() != 1)
{
}
LL_RCC_SetAHBPrescaler(LL_RCC_SYSCLK_DIV_1);
LL_RCC_SetAPB1Prescaler(LL_RCC_APB1_DIV_4);
LL_RCC_SetAPB2Prescaler(LL_RCC_APB2_DIV_2);
LL_RCC_SetSysClkSource(LL_RCC_SYS_CLKSOURCE_PLL);
/* Wait till System clock is ready */
while(LL_RCC_GetSysClkSource() != LL_RCC_SYS_CLKSOURCE_STATUS_PLL)
{
}
LL_Init1msTick(180000000);
LL_SetSystemCoreClock(180000000);
LL_RCC_SetTIMPrescaler(LL_RCC_TIM_PRESCALER_TWICE);
}