卷轴LED灯控设计

//文件：light.c

//项目：装饰灯

//说明：晶振115200


#include <reg52.h>
#include <intrins.h>
#include "delay.h"

typedef unsigned char uchar;
typedef unsigned int uint;

#define LEDON 0
#define LEDOFF 1

//分配IO端口

//重定义I/0引脚名称

sbit led0=P0^0;
sbit led1=P0^1;
sbit led2=P0^2;
sbit led3=P0^3;
sbit led4=P0^4;
sbit led5=P0^5;
sbit led6=P0^6;
sbit led7=P0^7;

sbit led8=P1^0;
sbit led9=P1^1;
sbit led10=P1^2;
sbit led11=P1^3;
sbit led12=P1^4;
sbit led13=P1^5;
sbit led14=P1^6;
sbit led15=P1^7;

sbit led16=P2^0;
sbit led17=P2^1;
sbit led18=P2^2;
sbit led19=P2^3;

//函数声明

void Initial(); //初始化

void LedsOn();        //电灯程序

void LedsOff();        //灭灯程序


void main()
{

    Initial();        //初始化


    while(1)
    {
        ;            //空循环，等待中断


    }


    /*
    //test1
    Initial();        //初始化
    P0 = 0x0;
    P1 = 0x0;
    P2 = 0x0;
    P3 = 0x0;
    */
/*
    //test2
    Initial();        //初始化
    while(1)
    {
        LedsOn();
        LedsOff();

    }
*/

    //test3




}

void Initial()
{

    //开灯

    //P0=0x0;

    //P1=0x0;

    //P2=0x0;

    //P3=0x0;

    //delay_50ms(20);        //延时1s;

    //关灯

    //P0=0x0;

    //P1=0x0;

    //P2=0x0;

//    P3=0xff;


    //delay_50ms(60);        //延时1s;


    P0=0xff;
    P1=0xff;
    P2=0xff;

    delay_50ms(20);        //延时1s;



    EX0=1; // INT0中断开

    IT0=0; // INT0低电平触发(为1则为下降沿触发)


    EX1=0; // INT1中断关

    IT1=0; // INT1低电平触发(为1则为下降沿触发)


    EA=1; // CPU所有中断开(IE最高位MSB)


    return;
}

void LedsOn()
{
    led19=LEDON;
    delay_50ms(20);        //延时1s;


    led18=LEDON;
    delay_50ms(20);        //延时1s;


    led17=LEDON;
    delay_50ms(20);        //延时1s;


    led16=LEDON;
    delay_50ms(20);        //延时1s;


    led15=LEDON;
    delay_50ms(20);        //延时1s;


    led14=LEDON;
    delay_50ms(20);        //延时1s;


    led13=LEDON;
    delay_50ms(20);        //延时1s;


    led12=LEDON;
    delay_50ms(20);        //延时1s;


    led11=LEDON;
    delay_50ms(20);        //延时1s;


    led10=LEDON;
    delay_50ms(20);        //延时1s;


    led9=LEDON;
    delay_50ms(20);        //延时1s;


    led8=LEDON;
    delay_50ms(20);        //延时1s;


    led7=LEDON;
    delay_50ms(20);        //延时1s;


    led6=LEDON;
    delay_50ms(20);        //延时1s;


    led5=LEDON;
    delay_50ms(20);        //延时1s;


    led4=LEDON;
    delay_50ms(20);        //延时1s;


    led3=LEDON;
    delay_50ms(20);        //延时1s;


    led2=LEDON;
    delay_50ms(20);        //延时1s;


    led1=LEDON;
    delay_50ms(20);        //延时1s;


    led0=LEDON;
    delay_50ms(20);        //延时1s;


    delay_50ms(40);        //延时2s


    EX0=0;                 //关闭EXT0中断

    EX1=1;                //打开EXT1中断


    return;                //返回

}

void LedsOff()
{
    led0=LEDOFF;
    delay_50ms(20);        //延时1s;


    led1=LEDOFF;
    delay_50ms(20);        //延时1s;


    led2=LEDOFF;
    delay_50ms(20);        //延时1s;


    led3=LEDOFF;
    delay_50ms(20);        //延时1s;


    led4=LEDOFF;
    delay_50ms(20);        //延时1s;


    led5=LEDOFF;
    delay_50ms(20);        //延时1s;


    led6=LEDOFF;
    delay_50ms(20);        //延时1s;


    led7=LEDOFF;
    delay_50ms(20);        //延时1s;


    led8=LEDOFF;
    delay_50ms(20);        //延时1s;


    led9=LEDOFF;
    delay_50ms(20);        //延时1s;


    led10=LEDOFF;
    delay_50ms(20);        //延时1s;


    led11=LEDOFF;
    delay_50ms(20);        //延时1s;


    led12=LEDOFF;
    delay_50ms(20);        //延时1s;


    led13=LEDOFF;
    delay_50ms(20);        //延时1s;


    led14=LEDOFF;
    delay_50ms(20);        //延时1s;


    led15=LEDOFF;
    delay_50ms(20);        //延时1s;


    led16=LEDOFF;
    delay_50ms(20);        //延时1s;


    led17=LEDOFF;
    delay_50ms(20);        //延时1s;


    led18=LEDOFF;
    delay_50ms(20);        //延时1s;


    led19=LEDOFF;
    delay_50ms(20);        //延时1s;


    delay_50ms(40);        //延时2s


    EX1=0;                 //关闭EXT1中断

    EX0=1;                //打开EXT0中断


    return;                //返回

}

//INT0中断-由P3.2引脚产生

void int_0() interrupt 0 using 0
{
    EA=0;        //关中断，保证原子操作

    LedsOn();
    EA=1;        //开中断

}

//INT1中断-由P3.3引脚产生

void int_1() interrupt 2 using 1
{
    EA=0;        //关中断，保证原子操作

    LedsOff();
    EA=1;        //开中断

}

源码如下：

 LED.rar