【STM32 Nucleo-64测评】6、定时器测试-TIM编码器接口驱动EC11旋转编码器

static void MX_TIM3_Init(void)

{



  /* USER CODE BEGIN TIM3_Init 0 */



  /* USER CODE END TIM3_Init 0 */



  TIM_Encoder_InitTypeDef sConfig = {0};

  TIM_MasterConfigTypeDef sMasterConfig = {0};



  /* USER CODE BEGIN TIM3_Init 1 */



  /* USER CODE END TIM3_Init 1 */

  htim3.Instance = TIM3;

  htim3.Init.Prescaler = 0;

  htim3.Init.CounterMode = TIM_COUNTERMODE_UP;

  htim3.Init.Period = 65535;

  htim3.Init.ClockDivision = TIM_CLOCKDIVISION_DIV1;

  htim3.Init.AutoReloadPreload = TIM_AUTORELOAD_PRELOAD_DISABLE;

  sConfig.EncoderMode = TIM_ENCODERMODE_TI12;

  sConfig.IC1Polarity = TIM_ICPOLARITY_RISING;

  sConfig.IC1Selection = TIM_ICSELECTION_DIRECTTI;

  sConfig.IC1Prescaler = TIM_ICPSC_DIV1;

  sConfig.IC1Filter = 16;

  sConfig.IC2Polarity = TIM_ICPOLARITY_RISING;

  sConfig.IC2Selection = TIM_ICSELECTION_DIRECTTI;

  sConfig.IC2Prescaler = TIM_ICPSC_DIV1;

  sConfig.IC2Filter = 16;

  if (HAL_TIM_Encoder_Init(&htim3, &sConfig) != HAL_OK)

  {

    Error_Handler();

  }

  sMasterConfig.MasterOutputTrigger = TIM_TRGO_RESET;

  sMasterConfig.MasterSlaveMode = TIM_MASTERSLAVEMODE_DISABLE;

  if (HAL_TIMEx_MasterConfigSynchronization(&htim3, &sMasterConfig) != HAL_OK)

  {

    Error_Handler();

  }

  /* USER CODE BEGIN TIM3_Init 2 */



  /* USER CODE END TIM3_Init 2 */



}

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 */

        int CaptureNumber = 0;

        char temp[8];

  /* 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_TIM3_Init();

  /* USER CODE BEGIN 2 */

        

        LCD_DB0_CLR;

        LCD_DB1_CLR;

        LCD_DB2_CLR;

        LCD_DB3_CLR;

        LCD_DB4_CLR;

        LCD_DB5_CLR;

        LCD_DB6_CLR;

        LCD_DB7_CLR;



        InitLCD();

        LCD_LED_SET;



        clrScr(VGA_RED);

        

        __HAL_TIM_GET_COUNTER(&htim3) = 0; //计数器值置位

    HAL_TIM_Encoder_Start(&htim3, TIM_CHANNEL_ALL);

  /* USER CODE END 2 */



  /* Infinite loop */

  /* USER CODE BEGIN WHILE */



        GUI_WriteASCII(30,30,"Encoder",VGA_WHITE,VGA_RED);

  while (1)

  {



    /* USER CODE END WHILE */



    /* USER CODE BEGIN 3 */

        

                

                if(__HAL_TIM_GET_COUNTER(&htim3) != 0) {

                                char        Dir = __HAL_TIM_IS_TIM_COUNTING_DOWN(&htim3); //读取转动方向：0为正、1为负

                                if(Dir)CaptureNumber--;

                                else CaptureNumber++;

                                __HAL_TIM_GET_COUNTER(&htim3) = 0; //计数器值重新置位



                                sprintf(temp,"%03d",CaptureNumber);

GUI_WriteASCII64x32(35,60,temp,VGA_WHITE,VGA_RED);

                        

   }





         

  }

        

  /* USER CODE END 3 */

}