五位十进制计数器

 

#include<reg52.h>

#define uchar unsigned char

sbit P3_4=P3^4;

//code uchar tab[10]={0x40,0x79,0x24,0x30,0x19,0x12,0x02,0x78,0x00,0x10,};

//code uchar tab[10]={0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,0x07,0x7f,0x6f,};

code uchar tab[10]={0xbf,0x86,0xdb,0xcf,0x66,0xed,0xfd,0x87,0xff,0xef,};

uchar sz[5];

int qw,bw,sw,gw,a,b,c;

void disp(void)

{

for(c=3;c>=0;c--)

{

SBUF=tab[sz[c]];

while(!TI);

TI=0;

}

}

void scjs(void)interrupt 3

{

TH1=0X3C;