x_ku.c

用8个数码管

#include <at89x52.h>
#define uchar unsigned char 
#define uint  unsigned int
code uchar ch[10]={0x00,0x01,0x2,0x3,0x4,0x5,0x6,0x7,0x8,0x9};
uchar ch1[]={0,0,0,0,0,0,0,0};
sbit W0=P1^4;
sbit W1=P1^5;
sbit W2=P1^6;
void delay()
{
 int j;
    for(j=200;j>0;j--)
	  {;}
}
void xian_a(uchar *a)
{
  int i;
  for (i=0;i<8;i++)
  ch1[i]=*(a+i);
  for (i=0;i<8;i++)
   {
     P1=ch[ch1[i]]; 
	 switch(i)
	  {
	   case 0:W0=0;W1=0;W2=0;;break;
	   case 1:W0=1;W1=0;W2=0;break;
	   case 2:W0=0;W1=1;W2=0;break;
	   case 3:W0=1;W1=1;W2=0;break;
	   case 4:W0=0;W1=0;W2=1;break;
	   case 5:W0=1;W1=0;W2=1;break;
	   case 6:W0=0;W1=1;W2=1;break;
	   case 7:W0=1;W1=1;W2=1;break;
	   default:   break;
	  }
	 delay();
   }
}