STM32F103中非中断模式TIM3定时器精确延时+Proteus仿真源码 -

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();
__HAL_RCC_TIM1_CLK_ENABLE();//去除proteus 的bug
MX_TIM3_Init();
/* USER CODE BEGIN 2 */
//__HAL_RCC_TIM1_CLK_ENABLE();
/* USER CODE END 2 */
/* Infinite loop */
/* USER CODE BEGIN WHILE */
while (1)
{
HAL_TIM_Base_Start(&htim3); //启动定时器
htim3.Instance->SR &= 0xfffffffe; //清除溢出标志
while((htim3.Instance->SR & 0x01) == 0x00);//等待溢出标志
HAL_TIM_Base_Stop(&htim3);// 停止定时器-----此语句加不加都能正常工作
HAL_GPIO_TogglePin(GPIOC,GPIO_PIN_0);//翻转输出
/* USER CODE END WHILE */
/* USER CODE BEGIN 3 */
}
/* USER CODE END 3 */
}

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