[ ST NUCLEO-U575ZI-Q 测评] +点两个灯

lugl4313820

[ ST NUCLEO-U575ZI-Q 测评] +点两个灯 [复制链接]

用MDK新建一个工程：

 定义一下LED1、LED2的端口、PIN，时钟：

#define LED1_PIN                                GPIO_PIN_7
#define LED1_GPIO_PORT                          GPIOC
#define LED1_GPIO_CLK_ENABLE()                  __HAL_RCC_GPIOC_CLK_ENABLE()
#define LED1_GPIO_CLK_DISABLE()                 __HAL_RCC_GPIOC_CLK_DISABLE()

#define LED2_PIN                                GPIO_PIN_7
#define LED2_GPIO_PORT                          GPIOB
#define LED2_GPIO_CLK_ENABLE()                  __HAL_RCC_GPIOB_CLK_ENABLE()
#define LED2_GPIO_CLK_DISABLE()                 __HAL_RCC_GPIOB_CLK_DISABLE()

时钟初始，针脚初始化：

   /* -1- Enable GPIO Clock (to be able to program the configuration registers) */
  LED1_GPIO_CLK_ENABLE();
  LED2_GPIO_CLK_ENABLE();


  /* -2- Configure IO in output push-pull mode to drive external LEDs */
  GPIO_InitStruct.Mode  = GPIO_MODE_OUTPUT_PP;
  GPIO_InitStruct.Pull  = GPIO_PULLUP;
  GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_HIGH;

  GPIO_InitStruct.Pin = LED1_PIN;
  HAL_GPIO_Init(LED1_GPIO_PORT, &GPIO_InitStruct);
  GPIO_InitStruct.Pin = LED2_PIN;
  HAL_GPIO_Init(LED2_GPIO_PORT, &GPIO_InitStruct);
  
  GPIO_InitStruct.Pin = LED3_PIN;
  HAL_GPIO_Init(LED3_GPIO_PORT, &GPIO_InitStruct);

交替亮灯：

  /* Infinite loop */
  /* USER CODE BEGIN WHILE */
  while (1)
  {
    /* USER CODE END WHILE */

    /* USER CODE BEGIN 3 */
    HAL_GPIO_TogglePin(LED1_GPIO_PORT, LED1_PIN);
    /* Insert delay 100 ms */
    HAL_Delay(100);
    HAL_GPIO_TogglePin(LED2_GPIO_PORT, LED2_PIN);
    /* Insert delay 100 ms */
    HAL_Delay(100);


  }

接上开发板，下载：

 

流水灯

 

okhxyyo

测评汇总：免费申请|ST NUCLEO-U575ZI-Q https://bbs.eeworld.com.cn/thread-1228653-1-1.html