時鐘跑秒

ID:75419 · 發表于 2015-4-5 16:57

#include<reg51.h>
#include<intrins.h>
#define uchar  unsigned  char
#define uint unsigned  int

uchar code table[]={
0x3f,0x06,0x5b,0x4f,
0x66,0x6d,0x7d,0x07,
0x7f,0x6f,0x77,0x7c,
0x39,0x5c,0x79,0x71};

uint  num,aa,fhz;
uchar  shi,ge,bai,qian,sh,sh0,fen0,fen,sh1,fen1;
void  delayms(int);

void  intin();
void  main()
{
intin();
while(1)
{


}
}
void  intin()
{
  TMOD=0x01;
  TH0=0x3c;
  TL0=0xb0;
  EA=1;
  ET0=1;
  TR0=1;
  while(1)
{

if(aa==2)
{
aa=0;
      num++;
      if(num==600)
   {
      num=0;
      fen++;
if(fen==60)
{
   fen=0;
   sh++;
   if(sh==12)
   {
      sh=1;

   }
}
   }
}
bai=num/100;
shi=num%100/10;
ge=num%10;

fen1=fen/10;
fen0=fen%10;

sh1=sh/100;
sh0=sh%10;

P2=0xfb;
P0=table[bai];
delayms(1);

P2=0xfd;       //打開第二位
P0=table[shi];    //送十位段數據
delayms(1);

P2=0xfe;       //打開第一位
P0=table[ge];    //送各位段數據
delayms(1);

P2=0x7f;
P0=table[sh1]; //時
delayms(1);
P2=0xbf;
P0=table[sh0];
delayms(1);

P2=0xef;
P0=table[fen1];    //分
delayms(1);
P2=0xf7;
P0=table[fen0];
delayms(1);

}
}
void delayms(int xsm)
{
  int i,j;
for(i=xsm;i>0;i--)
   for(j=110;j>0;j--);
}
void  time0()  interrupt  1
{
    TH0=0x3c;
TL0=0xb0;
aa++;
}