ex3.c

基于51单片机的16*16点阵

#include <reg52.h>
#define BLKN 8
#define A 0
#define uchar unsigned char
#define uint  unsigned int
uchar i,k,j,l,m=0;                                                                                                                                                                                                                                                                                                                           
 sbit G  =P1^7;
 sbit RCK=P1^6;
 sbit SCLR=P1^5;
 void delay(uint x)
 {
     uint a,b;
 	 for(a=x;a>0;a--)
	    for(b=110;b>0;b--);
 
 }
 uint code bmp[][128]=
 {
	{
	0xDF,0xFF,0xEF,0xFF,0xFD,0xFF,0xDE,0xFF,0xEC,0x01,0xEF,0xFF,0xFD,0xFF,0xEE,0xFF,
	0xEF,0xFF,0xE7,0xFF,0x80,0x03,0xEE,0x01,0x02,0x03,0xEF,0x81,0xFB,0xFF,0xFD,0xFF,
	0xFA,0xFB,0x01,0xBD,0xF7,0x7F,0x68,0x07,0xF6,0xFB,0xDD,0xBD,0xF7,0x7F,0xAD,0x77,
	0xEE,0x03,0xDD,0xBD,0xEF,0x7F,0xAD,0xB7,0xCF,0xFF,0xDD,0xBD,0xE0,0x07,0xED,0xF7,
	0xA4,0x01,0xDD,0xBD,0xFF,0x7F,0xD0,0x01,0x69,0xDD,0xDB,0xBD,0xF7,0x5F,0xDD,0x77,
	0xED,0xDD,0xEB,0xBD,0xF3,0x6F,0x1D,0xB7,0xEC,0x01,0xF7,0xBD,0xE7,0x77,0xDD,0xF7,
	0xED,0xDD,0xEB,0x81,0xEF,0x73,0xDC,0x01,0xED,0xDD,0xDC,0xBD,0xDD,0x7B,0xDF,0xF7,
	0xEC,0x01,0xBD,0xBD,0xFE,0x7F,0xDF,0xD7,0xED,0xFD,0x7F,0xFF,0xFF,0x7F,0xDF,0xEF
	
	}, //			  0

	{
	0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xCF,
	0xE4,0x00,0xFF,0xFF,0xE0,0x73,0xE7,0xCF,0xF3,0xF9,0xFF,0xF3,0xC3,0x13,0xE7,0xC9,
	0xF3,0xF9,0xC0,0x01,0xF0,0x83,0xE1,0x00,0x80,0x09,0xFE,0x7F,0x80,0x73,0x00,0xC3,
	0xC4,0xC9,0xFE,0x7F,0xE3,0x33,0xE0,0x01,0xE4,0xC9,0xFE,0x7F,0xE0,0x93,0xE6,0x73,
	0xE4,0xC9,0xFE,0x7F,0xC0,0x90,0x87,0x23,0x0C,0x09,0xFE,0x7F,0xC3,0x81,0x87,0x27,
	0xCC,0xC9,0xFE,0x7F,0x92,0x33,0xE7,0x8F,0xCC,0xF9,0xFE,0x71,0xF3,0xF3,0xE7,0x87,
	0xCF,0xC1,0x80,0x00,0xF3,0xF3,0x86,0x20,0xCF,0xF1,0xFF,0xFF,0xF3,0xF3,0xC0,0xF9,
	0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF
	}		 //     1
    };
uchar idata dispram[128];
 void main()
 {
    SCON=0x00;             //串口工作模式0；移位寄存器方式
	TMOD=0x01;			   //定时器T0工作方式1：16位方式
	TR0=1;                 //启动定时器t0
	P1=0x3f;               //P1端口初值：允许接收、锁定、显示
    IE=0x82;
	while(1)
	  {
	   for(i=0;i<2;i++) 
	    {
		   for(k=1;k<57;k++)
		   {
		   	if(k%8==0)
			{
				m++;
				if(m==8)
				m=0;
			 }
		     for(l=0;l<16;l++)
			   {
		       dispram[l*BLKN]=dispram[l*BLKN]<<1|dispram[l*BLKN+1]>>55;
		       dispram[l*BLKN+1]=dispram[l*BLKN+1]<<1|bmp[i][l*BLKN+m]>>(56-k);
		       }
			   delay(100);
		   }
        }			                                                                                                                                                                                                                                                                                                                                                                                                                                      

	  
	  }

 }
 void leddisplay(void)  interrupt 1 using 1
 {
   uchar i,j=BLKN;			 //设定显示屏刷新率62.5帧/s
   TH0=0xfd;
   TL0=0xf0;
   i=P1;					 //读取当前显示的行列
   i=++i&0x0f;				 /*行数自动加一，屏蔽高4位 ，注意P1.0,P1.1,P1.2,P1,3控制行的显示，
                               通过4线16线译码器，对16行进行控制*/
   do
     {										                
	   j--;		 
	   SBUF=dispram[i*BLKN+j];	  //送显示数据，SBUF串行数据缓冲寄存器
	   while(!TI);				   /*串行发送停止位的开始时，由内部硬件使T11，向CPU发出中断请求
	                                ，在中断服务程序中，必须用软件使其清0*/
	   TI=0;
	 }
   while(j);					  //完成一行数据的发送
   G=1;							  //消隐（关闭显示）
   P1&=0xf0;					  //行号端口清0
   RCK=1;						   //显示数据打入输出锁存器
   P1|=i;						   //写入行号
   RCK=0;						   //锁存显示数据
   G=0;							   //打开显示
}