單片機電子時鐘，數碼管顯示不全

ID:555516 · 發表于 2019-7-17 16:02

不知道為什么數碼管顯示不完全。

#include <reg52.h>
#define uchar unsigned char
#define uint unsigned int
void delay_ms(unsigned int);
uchar code xianshi[]={0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,0x07,0x7f,0x6f};
uchar code weixuan[]={0xfe,0xfd,0xfb,0xf7,0xef,0xdf};
int num=0;
int sec=22,secg=0,secs=0;
int min=5,ming=0,mins=0;
int hour=15,hourg=0,hours=0;
int i;
void zd1(){
      TMOD=0X01;
      TH0=(65536-50000)/256; //TH0=(65536-50000)/256;
   TL0=(65536-50000)%256; //TL0=(65536-50000)%256;
   ET0=1;
   TR0=1;

}

void main(){
IT0=1;
EX0=1;
EA=1;
IT1=1;
EX1=1;
         zd1();

   while(1){
                  secg=sec%10;
      secs=sec/10;
      ming=min%10;
      mins=min/10;
      hourg=hour%10;
      hours=hour/10;


P0= xianshi[hours];
P2=weixuan[0];
delay_ms(5);
      P0= xianshi[hourg];
P2=weixuan[1];
delay_ms(5);
      P0= xianshi[mins];
P2=weixuan[2];
delay_ms(5);
      P0= xianshi[ming];
P2=weixuan[3];
         delay_ms(5);
      P0= xianshi[secs];
P2=weixuan[4];
         delay_ms(5);
      P0= xianshi[secg];
P2=weixuan[5];
         delay_ms(5);
         }
}

void time0() interrupt 1{
      num++;
      TH0=(65536-50000)/256;
   TL0=(65536-50000)%256;
      if(num==20){
      num=0;
      sec++;
      }
      if(sec==60){
      sec=0;
      min++;

      }
      if(min==60){
      min=0;
      hour++;
      }
      if(hour==24){
                     hour=0;
      }

}

            void delay_ms(unsigned int dt)//延時函數
{
register unsigned char bt,ct;
for (;dt;dt--)
for (ct=2;ct;ct--)
   for (bt=250;--bt;);
}