数码管01.c

数码管实例

#include<AT89X51.h>
unsigned char i;
unsigned char j;
unsigned char code h[]={0x7F,0xBF,0xDF,0xEF,0xF7,0xFB,0xFD,0xFE};
unsigned char r[8];
unsigned char g[8];
void delay(unsigned char t,k);
main()
{
r[0]=0XF7;
g[0]=0XF7;
r[1]=0XF3;
g[1]=0XF3;
r[2]=0XF7;
g[2]=0XF7;
r[3]=0XF7;
g[3]=0XF7;
r[4]=0XF7;
g[4]=0XF7;
r[5]=0XF7;
g[5]=0XF7;
r[6]=0XF7;
g[6]=0XF7;
r[7]=0XE3;
g[7]=0XE3;
while (1)
{
for (i=0;i<8;i++)
{
P0=h[i];
P1=r[i];
P3=g[i];
delay(3,3);
}
}
}
void delay(unsigned char t,k)//延时子程序
{
while (--k)
{
while(--t);
}
}