AB32VG1 按键控制LED_我是郑伟的博客

使用AB32VG1在RT-Thread Studio 进行编写。

#include <rtthread.h>
#include "board.h"
int main(void)
{
    uint8_t green = rt_pin_get("PE.4");             //定义绿色LED灯的引脚，uint8_t为数据类型
    uint8_t key = rt_pin_get("PF.1");               //定义按键引脚
    rt_pin_mode(green, PIN_MODE_OUTPUT);            //定义LED为输出
    rt_pin_mode(key, PIN_MODE_INPUT_PULLUP );       //定义按键为输入
    rt_pin_write(green, PIN_HIGH);                  //将LED置为高电平
    while(1){
    if(rt_pin_read(key) == 1)
    {
        rt_pin_write(green, PIN_LOW);
    }
       if(rt_pin_read(key) == 0)
       {
        rt_pin_write(green, PIN_HIGH);
       }//while循环要有，使程序一直运行
    }
}