求1602 1302 和按键的闹钟不用中断实现

ID:76000 · 发表于 2015-4-2 20:18

#include<reg51.h>
#include"lcd1602.h"
#include"ds1302.h"
sbit k1=P3^0;
sbit k2=P3^1;
sbit k3=P3^2;
sbit beep=P1^5;
unsigned char miao,fen,shi,c,flag=0,flag1=0,flag0=0;
int Scan_key();
void lcddisplay();
void lDelay(unsigned char c);
unsigned char panduan();
void set()
{
lcd1602writecom(0x80);
lcd1602writedat('0'+(shi/10));// //时
lcd1602writedat('0'+(shi%10));//
lcd1602writedat('-');
lcd1602writedat('0'+(fen/10)); //时
lcd1602writedat('0'+(fen%10));
lcd1602writedat('-');
lcd1602writedat('0'+(miao/10)); //时
lcd1602writedat('0'+(miao%10));
// Scan_key();
}

void main()
{
   beep=1;
lcd1602Init();
      ds1302Init();
   while(1)
   {
            while(1)
  {
   ds1302readtime();
   lcddisplay();
Scan_key();
if(flag1==1)
{
lcd1602writecom(0x01);
break;
}
      }
while(1)
  {
   set();
   Scan_key();
            c=panduan();
   if(c==1)
   {
      beep=0;
      lDelay(13);
      beep=1;
      if(flag0==1)
      break;
   }

         }
}
}

void lcddisplay()
{
lcd1602writecom(0x80+0X40);
lcd1602writedat('0'+TIME[2]/16); //时
lcd1602writedat('0'+(TIME[2]&0x0f));
lcd1602writedat('-');
lcd1602writedat('0'+TIME[1]/16); //分
lcd1602writedat('0'+(TIME[1]&0x0f));
lcd1602writedat('-');
lcd1602writedat('0'+TIME[0]/16); //秒
lcd1602writedat('0'+(TIME[0]&0x0f));
lcd1602writecom(0x80);
lcd1602writedat('2');
lcd1602writedat('0');
lcd1602writedat('0'+TIME[6]/16); //年
lcd1602writedat('0'+(TIME[6]&0x0f));
lcd1602writedat('-');
lcd1602writedat('0'+TIME[4]/16); //月
lcd1602writedat('0'+(TIME[4]&0x0f));
lcd1602writedat('-');
lcd1602writedat('0'+TIME[3]/16); //日
lcd1602writedat('0'+(TIME[3]&0x0f));
lcd1602writecom(0x8D);
lcd1602writedat('0'+(TIME[5]&0x07)); //星期


}
void lDelay(unsigned char c)
{
unsigned char a,b;
for(;c>0;c--)
{
  for(a=10;a>0;a--)
  {
for(b=10;b>0;b--);
  }
}
}
int Scan_key()
{
unsigned char num=0;
if(k1==0)
{

lDelay(1);
if(k1==0)
{
flag1=1;
   num++;
   //while(!k1);
   if(num==3)
   {
      num=0;
   }
         }
}
if(num!=0)
{
if(k2==0)
   {
      lDelay(1);
      if(k2==0)
{
// while(!k2);
   if(num==1)
      {
      miao++;

      if(miao==60)
      {
miao=0;
fen++;
         }
      }
      if(num==2)
      {
fen++;
if(fen==60)
{
   fen=0;
   shi++;
}
      }
            if(num==3)
            {
         shi++;
      if(shi==24)
         {
         shi=0;
//          miao=0;
// fen=0;
         }
      }
  }
   }
  if(k3==0)
  {
lDelay(1);
   if(k3==0)
   {
      while(!k3);
         if(num==1)
{
   miao--;
   if(miao==-1)
      {
miao=59;
fen--;
      }
}
if(num==2)
{
   fen--;
   if(fen==-1)
      {
fen=59;
shi--;
      }
}
if(num==3)
{
   shi--;
   if(shi==-1)
   {
            shi=0;
//    miao=59;
//    fen=59;
   flag0=1;
   }
}
      }
  }
}
return 0;
}

unsigned char panduan()
{
if((miao==TIME[0]) || (fen==TIME[1]) || (shi=TIME[2]))
{
  flag=1;
}
return flag;
}
这是我的main的一部分  怎么实现不了切换时分秒求解释

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