原创用51单片机设计的一个能校准的时钟

 2008-7-21 17:08  2406 1 2 分类: MCU/ 嵌入式

#include<reg52.h>
#define uchar unsigned char
#define uint unsigned int

sbit rs="P0"^2;
sbit rw="P0"^3;
sbit lcden="P0"^4;
sbit s1=P3^2;
sbit s2=P3^3;
sbit s3=P3^4;
sbit s4=P3^5;
sbit beep="P0"^7;
uchar count,s1num;

char shi,fen,miao,nian,yue,ri,week;
uchar code table[]="2008-05-27week02";
uchar code table1[]="23:59:50 ";

void delay(uint z) //***延时程序 *********************************************************************//
{
uint x,y;
for(x=z;x>0;x--)
for(y=100;y>0;y--);
}

void write_com(uchar com) //***液晶1602指令设置******************************************//
{
rs=0;
lcden=0;
P2=com;
delay(5);
lcden=1;
delay(5);
lcden=0;

}

void write_date(uchar date)   //***液晶1602数据设置***********************************************//
{
rs=1;
lcden=0;
P2=date;
delay(5);
lcden=1;
delay(5);
lcden=0;
}

void init() //***********************************初始化函数*************************************//
{
uchar num;

rw=0;
lcden=0;
   shi="23";
fen=59;
miao=50;

   nian="8";
   yue="5";
ri=27;
week=2;
write_com(0x38);
write_com(0x0c);
write_com(0x06);
write_com(0x01);
write_com(0x80);
for(num=0;num<16;num++)
{
  write_date(table[num]);
  delay(1);

}

write_com(0x80+0x40);
for(num=0;num<8;num++)
{
  write_date(table1[num]);
  delay(1);

}
TMOD=0x01;
TH0=(65536-50000)/256;
TL0=(65536-50000)%256;
EA=1;
ET0=1;
TR0=1;

}

void write_sfm(uchar add,uchar date) //*********************写时分秒函数***************************//
{
uchar shi,ge;
shi=date/10;
ge=date%10;
write_com(0x80+0x40+add);
write_date(0x30+shi);
write_date(0x30+ge);
}

void write_nyr(uchar add1,uchar date1) //*********************写年月日函数***************************//
{
uchar nianshi,niange,yueshi,yuege,rishi,rige,weekshi,weekge;
nianshi=date1/10;
niange=date1%10;

yueshi=date1/10;
yuege=date1%10;

rishi=date1/10;
rige=date1%10;

weekshi=date1/10;
weekge=date1%10;

write_com(0x80+add1);
write_date(0x30+nianshi);
write_date(0x30+niange);

write_com(0x80+add1);
write_date(0x30+yueshi);
write_date(0x30+yuege);

write_com(0x80+add1);
write_date(0x30+rishi);
write_date(0x30+rige);

write_com(0x80+add1);
write_date(0x30+weekshi);
write_date(0x30+weekge);

}

void timer0() interrupt 1 //*********************写定时器函数**************************************//
{
TH0=(65536-50000)/256;
TL0=(65536-50000)%256;
count++;
}

void keyscan() //*********************按键扫描函数**********************************************//
{

//十分妙年月日自动加一程序 ************************************************************************** //
if(count==20)
  {
   count=0;
   miao++;
   if(miao==60)
   {
    miao=0;
    fen++;
    if(fen==60)
    {
     fen=0;
     shi++;
     if(shi==24)
     {
      shi=0;
      week++;
      ri++;
      if(week==8)
       {
       week=1;
       }
        if(ri==31)
      {
       ri=1;
       yue++;
       if(yue==13)
        {
         yue=1;
         nian++;
         if(nian==100)
         {
          nian=0;
         }
         write_nyr(2,nian);
        }
        write_nyr(5,yue);
      }
        write_nyr(14,week);
      delay(100);
      write_nyr(8,ri);
     }
         write_sfm(0,shi);

    }

    write_sfm(3,fen);
   }

   write_sfm(6,miao);
  }
//十分妙年月日自动加一程序 ************************************************************************** //

//***按键判断程序 ******************************************************************************//
          if(s1==0) //**判断按键1是否按下********************************************************//
{
               delay(5);
               if(s1==0)
               {
            while(!s1);
      s1num++;
       if(s1num==1)
       {
           TR0=0;
               write_com(0x0f);
                 write_com(0x80+0x40+7);
         }
       if(s1num==2)
      {
                 write_com(0x80+0x40+4);
       }

        if(s1num==3)
       {
                 write_com(0x80+0x40+1);
       }
       if(s1num==4)
       {
                 write_com(0x80+15);
       }
        if(s1num==5)
       {
                 write_com(0x80+9);
       }
        if(s1num==6)
       {
                 write_com(0x80+6);
       }
        if(s1num==7)
       {
                 write_com(0x80+3);
       }
        if(s1num==8)
       {
                 s1num=0;
       TR0=1;
       write_com(0x0c);
       }

             }


    }

   if(!s1num==0) //**判断按键2是否按下********************************************************//
    {
     if(s2==0)
      {
       delay(5);
       if(s2==0)

        while(!s2);
        if(s1num==1)
         {
          miao++;
          if(miao==60)
          miao=0;
          write_com(0x80+0x40+7);
          write_com(0x0f);
          write_sfm(6,miao);

         }
        if(s1num==2)
         {
          fen++;
          if(fen==60)
          fen=0;
          write_com(0x80+0x40+4);
          write_com(0x0f);
          write_sfm(3,fen);

         }
        if(s1num==3)
         {
          shi++;
          if(shi==24)
          shi=0;
          write_com(0x80+0x40+1);
          write_com(0x0f);
          write_sfm(0,shi);

         }
         if(s1num==4)
         {
          week++;
          if(week==8)
          week=1;
          write_com(0x80+14);
          write_com(0x0f);
          write_nyr(14,week);

         }
         if(s1num==5)
         {
          ri++;
          if(ri==31)
          ri=1;
          write_com(0x80+8);
          write_com(0x0f);
          write_nyr(8,ri);

         }
         if(s1num==6)
         {
          yue++;
          if(yue==13)
          yue=1;
          write_com(0x80+5);
          write_com(0x0f);
          write_nyr(5,yue);
          }
          if(s1num==7)
         {
          nian++;
          if(nian==99)
          nian=0;
          write_com(0x80+2);
          write_com(0x0f);
          write_nyr(2,nian);

         }

          }
           }

      if(!s1num==0) //**判断按键3是否按下********************************************************//
    {
     if(s3==0)
      {
       delay(5);
       if(s3==0)

        while(!s3);
        if(s1num==1)
         {
          miao--;
          if(miao==-1)
          miao=59;
          write_com(0x80+0x40+7);
          write_com(0x0f);
          write_sfm(6,miao);

         }
        if(s1num==2)
         {
          fen--;
          if(fen==-1)
          fen=59;
          write_com(0x80+0x40+4);
          write_com(0x0f);
          write_sfm(3,fen);

         }
        if(s1num==3)
         {
          shi--;
          if(shi==-1)
          shi=23;
          write_com(0x80+0x40+1);
          write_com(0x0f);
          write_sfm(0,shi);

         }
        if(s1num==4)
         {
          week--;
          if(week==0)
          week=7;
          write_com(0x80+14);
          write_com(0x0f);
          write_nyr(14,week);

         }
         if(s1num==5)
         {
          ri--;
          if(ri==0)
          ri=30;
          write_com(0x80+8);
          write_com(0x0f);
          write_nyr(8,ri);

         }
         if(s1num==6)
         {
          yue--;
          if(yue==0)
          yue=12;
          write_com(0x80+5);
          write_com(0x0f);
          write_nyr(5,yue);
          }
          if(s1num==7)
         {
          nian--;
          if(nian==-1)
          nian=98;
          write_com(0x80+2);
          write_com(0x0f);
          write_nyr(2,nian);

         }


           }
            }

}
//***按键判断程序 *******************************************************************************//

void main()       //*********************主函数********************************************************//
{
init();
while(1)
{

          keyscan();
//   keyscan2();

}

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