基于HEL库用stm32外部中断模式控制灯亮灭
一.控制LED流水灯点亮
1.工程搭建
1.点击file创建新文件,选择STM32108C8T6
2.用PA5,6,7口做流水灯,设置output模式,
3.时钟设置High Speed Clock 设置为Crystal/Ceramic Resonator
4.Debug 设置Serinal Wrie
5.时钟配置如图
6.toolchain设置MDK-ARM5,然后生成项目
2.代码部分
给输出口置高电平
HAL_GPIO_WritePin(GPIOA, GPIO_PIN_5, GPIO_PIN_SET);
给输出口置低电平
HAL_GPIO_WritePin(GPIOA, GPIO_PIN_5, GPIO_PIN_RESET);
main函数部分
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)
{
HAL_GPIO_WritePin(GPIOA, GPIO_PIN_5, GPIO_PIN_SET);
HAL_Delay(