【iCore4 双核心板_ARM】例程一：ARM驱动三色LED

实验原理：

　　通过STM32的三个GPIO驱动一个三色LED，引脚PB2接红色LED(ARM_LEDR),

引脚PA9接蓝色LED(ARM_LEDB)，引脚PA10接绿色LED(ARM_LEDG),  GPIO为推

挽输出模式，采用灌电流方式与LED连接，通过拉高拉低GPIO电平，从而控制LED亮灭。

实验现象：

　　该实验实现跑马灯功能，红、绿、蓝三色LED每隔500ms循环点亮。

源代码下载链接：

链接：http://pan.baidu.com/s/1eSu18A2 密码：ud87

核心源码：

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();

  /* USER CODE BEGIN 2 */

  /* USER CODE END 2 */

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

  /* USER CODE BEGIN 3 */
        LED_RED_ON;
        LED_BLUE_OFF;
        LED_GREEN_OFF;
        HAL_Delay(500);
        LED_RED_OFF;
        LED_BLUE_ON;
        LED_GREEN_OFF;
        HAL_Delay(500);
        LED_RED_OFF;
        LED_BLUE_OFF;
        LED_GREEN_ON;
        HAL_Delay(500);
  }
  /* USER CODE END 3 */

}

/* USER CODE BEGIN Private defines */
#define LED_RED_ON HAL_GPIO_WritePin(GPIOB, GPIO_PIN_2, GPIO_PIN_RESET)
#define LED_RED_OFF HAL_GPIO_WritePin(GPIOB, GPIO_PIN_2, GPIO_PIN_SET)

#define LED_BLUE_ON HAL_GPIO_WritePin(GPIOA, GPIO_PIN_9, GPIO_PIN_RESET)
#define LED_BLUE_OFF HAL_GPIO_WritePin(GPIOA, GPIO_PIN_9, GPIO_PIN_SET)

#define LED_GREEN_ON HAL_GPIO_WritePin(GPIOA, GPIO_PIN_10, GPIO_PIN_RESET)
#define LED_GREEN_OFF HAL_GPIO_WritePin(GPIOA, GPIO_PIN_10, GPIO_PIN_SET)
/* USER CODE END Private defines */

iCore4链接：