led4jd.c

使用4块8*8点阵LED横向动态静态显示汉字.初学电子广告牌制作的时候可用.

#include<reg52.h>
#define uchar unsigned char
sbit P33=P3^3;
code uchar TAB1[]={
0xc0,0x3f,0x41,0x29,0x19,0x45,0x3f,0xc0,
0x7e,0x1c,0xff,0x00,0xbd,0x47,0x25,0x9d,
0xb6,0x7d,0x57,0x04,0xd3,0xaa,0xf6,0x10,
0x10,0x10,0x10,0x10,0x10,0x10,0x10,0x10};
 code uchar TAB2[]={
0x10,0x10,0x10,0x10,0x10,0x10,0x10,0x10,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0xb6,0x7d,0x57,0x04,0xd3,0xaa,0xf6,0x10,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x7e,0x1c,0xff,0x00,0xbd,0x47,0x25,0x9d,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0xc0,0x3f,0x41,0x29,0x19,0x45,0x3f,0xc0,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x10,0x10,0x10,0x10,0x10,0x10,0x10,0x10,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0xb6,0x7d,0x57,0x04,0xd3,0xaa,0xf6,0x10,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x7e,0x1c,0xff,0x00,0xbd,0x47,0x25,0x9d,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0xc0,0x3f,0x41,0x29,0x19,0x45,0x3f,0xc0,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00};
char i,x[4]={0x7f,0xff,0xff,0xff};
void disp1()
{char a,d;
 {for(a=0;a<32;a++)
    

	
	  {P1=0x00;
	   P33=1;
	   for(d=3;d>=0;d--)
	    {SBUF=x[d];while(!TI);TI=0;}
		P1=TAB1[a];
		P33=1;
		for(i=0;i<4;i++)
		 {if((x[3]&0x01)==0)goto LP;
		  if((~x[i]!=0)&&((x[i]&0x01)!=0))
		     x[i]=x[i]<<7|x[i]>>1;
	      else if((~x[i]!=0)&&((x[i]&0x01)==0))
		   {x[i]=0xff;
		    x[i+1]=0x7f;
			break;
		   }
		  }
		  
		} 
		LP:x[0]=0x7f;x[3]=0xff; 
	}
  }
void disp2()
{int a,b,c,d;
 {for(a=0;a<64;a++)
  {for(b=0;b<15;b++)
    {for(c=0;c<32;c++)
	  {P1=0x00;
	   P33=1;
	   for(d=4;d>0;d--)
	    {SBUF=x[d-1];while(!TI);TI=0;}
		P1=TAB2[a+c];
		P33=1;
		for(i=0;i<4;i++)
		 {if((x[3]&0x01)==0)goto LP;
		  if((~x[i]!=0)&&((x[i]&0x01)!=0))
		     x[i]=x[i]<<7|x[i]>>1;
	      else if((~x[i]!=0)&&((x[i]&0x01)==0))
		   {x[i]=0xff;
		    x[i+1]=0x7f;
			break;
		   }
		 }

	  }
	  LP:x[0]=0x7f;x[3]=0xff;
	}
  }
 }
}
void main(void)
{while(1)
 {
unsigned int j,k;
j=500;
while(j--)
{disp1();}
k=2;
while(k--)
{disp2();}
 }
}