用数码管显示一个流水灯 -

标题: 用数码管显示一个流水灯 [打印本页]

作者: lids 时间: 2016-9-27 10:11
标题: 用数码管显示一个流水灯

/*数码管动态显示,延时0.5s数码管1到8显示一个口形流水灯，跑4圈，停下显示口，如此循环。
程序在实验板上通过。
*/

#include <reg52.h>
#define uint unsigned int
#define uchar unsigned char
sbit dula=P2^6;
sbit wela=P2^7;
uint aa;
uchar z;

void delayms(uint xms)
{
uint i;
uchar j;
for(i=xms;i>0;i--)
   for(j=110;j>0;j--);
}

void main()
{
while(1)
{

   for(z=0;z<4;z++)
   {
   dula=1; //1
   P0=0x01;    //送段选数据
   dula=0;
   P0=0xff;    //送位选数据前关闭所有显示，防止打开位选锁存器时
   wela=1;    //原来段选数据通过位选锁存器造成混乱
   P0=0xfe;    //送位选数据
   wela=0;
   delayms(500);    //延时

   dula=1; //2
   P0=0x01;
   dula=0;
   P0=0xff;
   wela=1;
   P0=0xfd;
   wela=0;
   delayms(500);

   dula=1; //3
   P0=0x01;
   dula=0;
   P0=0xff;
   wela=1;
   P0=0xfb;
   wela=0;
   delayms(500);

   dula=1; //4
   P0=0x01;
   dula=0;
   P0=0xff;
   wela=1;
   P0=0xf7;
   wela=0;
   delayms(500);

   dula=1;    //5
   P0=0x01;
   dula=0;
   P0=0xff;
   wela=1;
   P0=0xef;
   wela=0;
   delayms(500);

   dula=1;    //6
   P0=0x01;
   dula=0;
   P0=0xff;
   wela=1;
   P0=0xdf;
   wela=0;
   delayms(500);

   dula=1;    //7
   P0=0x01;
   dula=0;
   P0=0xff;
   wela=1;
   P0=0xbf;
   wela=0;
   delayms(500);

   dula=1;    //8
   P0=0x01;
   dula=0;
   P0=0xff;
   wela=1;
   P0=0x7f;
   wela=0;
   delayms(500);

   dula=1;
   P0=0x02;
   dula=0;
   P0=0xff;
   wela=1;
   P0=0x7f;
   wela=0;
   delayms(500);

   dula=1;
   P0=0x04;
   dula=0;
   P0=0xff;
   wela=1;
   P0=0x7f;
   wela=0;
   delayms(500);

   dula=1;
   P0=0x08;
   dula=0;
   P0=0xff;
   wela=1;
   P0=0x7f;
   wela=0;
   delayms(500);

   dula=1; //7
   P0=0x08;
   dula=0;
   P0=0xff;
   wela=1;
   P0=0xbf;
   wela=0;
   delayms(500);

   dula=1;    //6
   P0=0x08;
   dula=0;
   P0=0xff;
   wela=1;
   P0=0xdf;
   wela=0;
   delayms(500);

   dula=1;    //5
   P0=0x08;
   dula=0;
   P0=0xff;
   wela=1;
   P0=0xef;
   wela=0;
   delayms(500);

   dula=1; //4
   P0=0x08;
   dula=0;
   P0=0xff;
   wela=1;
   P0=0xf7;
   wela=0;
   delayms(500);

   dula=1; //3
   P0=0x8;
   dula=0;
   P0=0xff;
   wela=1;
   P0=0xfb;
   wela=0;
   delayms(500);

dula=1; //2
   P0=0x08;
   dula=0;
   P0=0xff;
   wela=1;
   P0=0xfd;
   wela=0;
   delayms(500);

   dula=1; //1
   P0=0x08;
   dula=0;
   P0=0xff;
   wela=1;
   P0=0xfe;
   wela=0;
   delayms(500);

   dula=1; //1
   P0=0x10;
   dula=0;
   P0=0xff;
   wela=1;
   P0=0xfe;
   wela=0;
   delayms(500);

   dula=1; //1
   P0=0x20;
   dula=0;
   P0=0xff;
   wela=1;
   P0=0xfe;
   wela=0;
   delayms(500);
   }


   for(aa=0;aa<200;aa++)
   {
   dula=1; //1
   P0=0x01;    //送段选数据
   dula=0;
   P0=0xff;    //送位选数据前关闭所有显示，防止打开位选锁存器时
   wela=1;    //原来段选数据通过位选锁存器造成混乱
   P0=0xfe;    //送位选数据
   wela=0;
   delayms(5);    //延时

   dula=1; //2
   P0=0x01;
   dula=0;
   P0=0xff;
   wela=1;
   P0=0xfd;
   wela=0;
   delayms(5);

   dula=1; //3
   P0=0x01;
   dula=0;
   P0=0xff;
   wela=1;
   P0=0xfb;
   wela=0;
   delayms(5);

   dula=1; //4
   P0=0x01;
   dula=0;
   P0=0xff;
   wela=1;
   P0=0xf7;
   wela=0;
   delayms(5);

   dula=1;    //5
   P0=0x01;
   dula=0;
   P0=0xff;
   wela=1;
   P0=0xef;
   wela=0;
   delayms(5);

   dula=1;    //6
   P0=0x01;
   dula=0;
   P0=0xff;
   wela=1;
   P0=0xdf;
   wela=0;
   delayms(5);

   dula=1;    //7
   P0=0x01;
   dula=0;
   P0=0xff;
   wela=1;
   P0=0xbf;
   wela=0;
   delayms(5);

   dula=1;    //8
   P0=0x01;
   dula=0;
   P0=0xff;
   wela=1;
   P0=0x7f;
   wela=0;
   delayms(5);

   dula=1;
   P0=0x02;
   dula=0;
   P0=0xff;
   wela=1;
   P0=0x7f;
   wela=0;
   delayms(5);

   dula=1;
   P0=0x04;
   dula=0;
   P0=0xff;
   wela=1;
   P0=0x7f;
   wela=0;
   delayms(5);

   dula=1;
   P0=0x08;
   dula=0;
   P0=0xff;
   wela=1;
   P0=0x7f;
   wela=0;
   delayms(5);

   dula=1; //7
   P0=0x08;
   dula=0;
   P0=0xff;
   wela=1;
   P0=0xbf;
   wela=0;
   delayms(5);

   dula=1;    //6
   P0=0x08;
   dula=0;
   P0=0xff;
   wela=1;
   P0=0xdf;
   wela=0;
   delayms(5);

   dula=1;    //5
   P0=0x08;
   dula=0;
   P0=0xff;
   wela=1;
   P0=0xef;
   wela=0;
   delayms(5);

   dula=1; //4
   P0=0x08;
   dula=0;
   P0=0xff;
   wela=1;
   P0=0xf7;
   wela=0;
   delayms(5);

   dula=1; //3
   P0=0x8;
   dula=0;
   P0=0xff;
   wela=1;
   P0=0xfb;
   wela=0;
   delayms(5);

dula=1; //2
   P0=0x08;
   dula=0;
   P0=0xff;
   wela=1;
   P0=0xfd;
   wela=0;
   delayms(5);

   dula=1; //1
   P0=0x08;
   dula=0;
   P0=0xff;
   wela=1;
   P0=0xfe;
   wela=0;
   delayms(5);

   dula=1; //1
   P0=0x10;
   dula=0;
   P0=0xff;
   wela=1;
   P0=0xfe;
   wela=0;
   delayms(5);

   dula=1; //1
   P0=0x20;
   dula=0;
   P0=0xff;
   wela=1;
   P0=0xfe;
   wela=0;
   delayms(5);
   }
}
}

QQ截图20160927100803.jpg (53.24 KB, 下载次数: 52)

欢迎光临 (http://www.51hei.com/bbs/)