並行構建項目能夠減小構建時間。(stm32cubeIDE默認並行編譯)bash
請參考這個視頻ide
PWM 的週期就是 16MHz/(15+1)/(99+1) = 10kHzoop
int main(void)
{
/* USER CODE BEGIN 1 */
uint16_t pwm_val=0;
/* 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_TIM1_Init();
/* USER CODE BEGIN 2 */
HAL_TIM_PWM_Start(&htim1, TIM_CHANNEL_1);//使能PWM
/* USER CODE END 2 */
/* Infinite loop */
/* USER CODE BEGIN WHILE */
while (1)
{
/* USER CODE END WHILE */
/* USER CODE BEGIN 3 */
while(pwm_val<50){
pwm_val++;
__HAL_TIM_SET_COMPARE(&htim1, TIM_CHANNEL_1,pwm_val); //設置佔空比
HAL_Delay(50);
}
while(pwm_val){
pwm_val--;
__HAL_TIM_SET_COMPARE(&htim1, TIM_CHANNEL_1,pwm_val);
HAL_Delay(50);
}
}
/* USER CODE END 3 */
}
複製代碼