Lập trình PWM STM32 CUBEMX

STEP1:Cài đặt timer 1 internal clock

PWM1

STEP2:Cấu hình PWM OUTPUT

PWM2

STEP3:Cài đặt thông số PWM

PWM3

72MHz / [(7199+1)*(499+1)]=20Hz

STEP4:Cấu hình thạch anh 72Mhz

PWM4

STEP 5:CODE Biên dịch

intmain(void)
{
/* USER CODE BEGIN 1 */
/* USER CODE END 1*/
/* MCU Configuration———————————————————-*/
/* Reset of all peripherals, Initializes the Flash interface and the Systick. */
HAL_Init();
/* Configure the system clock */
SystemClock_Config();
/* Initialize all configured peripherals */
MX_GPIO_Init();
MX_TIM2_Init();
/* USER CODE BEGIN 2 */
HAL_TIM_PWM_Start(&htim1, TIM_CHANNEL_3);
HAL_TIM_PWM_Start(&htim1 TIM_CHANNEL_4);
__HAL_TIM_SetCompare(&htim1, TIM_CHANNEL_4, 250);
/* USER CODE END 2*/
/* Infinite loop */
/* USER CODE BEGIN WHILE */
while(1)
{
/* USER CODE END WHILE */
/* USER CODE BEGIN 3 */
}
/* USER CODE END 3*/