Dears，
Currently I'm working on a BLDC project, and with the MC SDK, we can control the motor.
And we also want to make the MCU(STM32F4) into STOP mode to save some power, the issue is the MCU can not goes into STOP mode, anyone tried this before?
The code:
void McuEnterStopMode(void)
{
__disable_irq();
HAL_CAN_Stop(&hcan1);
HAL_SuspendTick();
HAL_TIM_Base_Stop(&htim1);
HAL_TIM_Base_Stop(&htim3);
HAL_NVIC_DisableIRQ(TIM1_BRK_TIM9_IRQn);
HAL_NVIC_DisableIRQ(TIM1_BRK_TIM9_IRQn);
HAL_NVIC_DisableIRQ(TIM3_IRQn);
HAL_NVIC_DisableIRQ(TIM7_IRQn);
HAL_NVIC_DisableIRQ(FPU_IRQn);
htim1.Instance->CR1 &= ~(TIM_CR1_CEN);
htim3.Instance->CR1 &= ~(TIM_CR1_CEN);
htim1.Instance->SR = 0;
htim3.Instance->SR = 0;
TIM7->CR1 &= ~(TIM_CR1_CEN);
TIM7->SR = 0;
TIM3->CR1 &= ~(TIM_CR1_CEN);
TIM3->SR = 0;
ClearFPU();
HAL_NVIC_ClearPendingIRQ(TIM1_BRK_TIM9_IRQn);
HAL_NVIC_ClearPendingIRQ(TIM1_BRK_TIM9_IRQn);
HAL_NVIC_ClearPendingIRQ(TIM3_IRQn);
HAL_NVIC_ClearPendingIRQ(TIM7_IRQn);
HAL_NVIC_ClearPendingIRQ(FPU_IRQn);
// 3. 进入stop
HAL_PWR_EnterSTOPMode(PWR_LOWPOWERREGULATOR_ON, PWR_STOPENTRY_WFI);
__enable_irq();
HAL_ResumeTick();
HAL_Init();
MX_NVIC_Init();
SystemClock_Config();
HAL_SYSTICK_Config(HAL_RCC_GetHCLKFreq()/SYS_TICK_FREQUENCY);
HAL_CAN_Start(&hcan1);
HAL_TIM_Base_Start(&htim1);
HAL_TIM_Base_Start(&htim3);
HAL_NVIC_EnableIRQ(TIM1_BRK_TIM9_IRQn);
HAL_NVIC_EnableIRQ(TIM1_BRK_TIM9_IRQn);
HAL_NVIC_EnableIRQ(TIM3_IRQn);
HAL_NVIC_EnableIRQ(TIM7_IRQn);
HAL_NVIC_EnableIRQ(FPU_IRQn);
}
Before calling below code, I checked, no pending interrupt, also for EXTI.
HAL_PWR_EnterSTOPMode(PWR_LOWPOWERREGULATOR_ON, PWR_STOPENTRY_WFI);
int main(void)
{
/* USER CODE BEGIN 1 */
/* USER CODE END 1 */
/* MCU Configuration--------------------------------------------------------*/
/* Reset of all peripherals, Initializes the Flash interface and the Systick. */
HAL_Init();
/* USER CODE BEGIN Init */
/* USER CODE END Init */
/* Configure the system clock */
SystemClock_Config();
/* USER CODE BEGIN SysInit */
/* USER CODE END SysInit */
/* Initialize all configured peripherals */
MX_GPIO_Init();
MX_ADC1_Init();
MX_ADC2_Init();
MX_TIM1_Init();
MX_TIM3_Init();
MX_USART1_UART_Init();
MX_MotorControl_Init();
MX_SPI2_Init();
MX_SPI1_Init();
MX_UART5_Init();
MX_CAN1_Init();
/* Initialize interrupts */
MX_NVIC_Init();
/* USER CODE BEGIN 2 */
Thanks�?
