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標(biāo)題: 大家給我看看這個(gè)電子鐘的閏年部分怎么樣有什么問題沒 [打印本頁]

作者: cxspoco 時(shí)間: 2009-8-18 21:27
標(biāo)題: 大家給我看看這個(gè)電子鐘的閏年部分怎么樣有什么問題沒

麻煩大家給我看看處理閏年問題的時(shí)候哪里出錯(cuò)了

/*時(shí)鐘12、24小時(shí)轉(zhuǎn)換--日期--星期*/
/*調(diào)整時(shí)間，日期 --------------------------閏年還有些問題*/
/*只用定時(shí)器*/

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

sbit key=P3^2; //外部中斷位定義切換時(shí)間日期
sbit key1=P3^3; //外部中斷 12/24小時(shí)切換

uint t;

//dy年份考慮閏年
uchar ts=55,tm=59,th=11,dd=31,dmi=12,dy=6,week=7; //時(shí)間日期定義初始化

uchar shu[]={0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,0x07,0x7f,0x6f}; //不帶小數(shù)點(diǎn) - 0x40
uchar shu1[]={0xbf,0x86,0xdb,0xcf,0xe6,0xed,0xfd,0x87,0xff,0xef,0xf7,0xf3}; //帶小數(shù)點(diǎn) 最后兩個(gè)顯示a p 上午下午
uchar dm[]={0,31,28,31,30,31,30,31,31,30,31,30,31}; //一到十二月每個(gè)月的天數(shù)
uchar wei[]={0xf0,0xf1,0xf2,0xf3,0xf4,0xf5,0xf6,0xf7};

uchar flag=0,flag1=0; //顯示日期時(shí)間的標(biāo)志

void time(void) interrupt 1 //50ms
{
TH0=(65536-50000)/256;
TL0=(65536-50000)%256;
t++;
}

void delay(uchar x)
{ //x 1ms
uchar y;
for(x;x>0;x--)
for(y=250;y>0;y--);
}

void display(uchar m,uchar n) //顯示一位秒、分...
{
uchar m_ge,m_shi;
m_ge=m%10;
m_shi=m/10;

P1=wei[n];
P2=shu[m_shi];
delay(1);

P1=wei[n+1];
P2=shu1[m_ge];
delay(1);
}

void display_time0(void) //顯示時(shí)間 24
{
display(th,0);
display(tm,2);
display(ts,4);
display(week,6);
}

void display_time1(void) //顯示時(shí)間 12
{
display(th%12,0);
display(tm,2);
display(ts,4);

P1=wei[7];
P2=shu1[10+th/12];
delay(1);
}

void display_day(void)
{
display(dy,0);
display(dmi,2);
display(dd,4);
}

void display_dt(void)    //顯示時(shí)間日期
{

  //one day
  if(t==20)
  {
   t=0;
   ts++;
   if(ts==60)
   {
    ts=0;
    tm++;
    if(tm==60)
    {
     tm=0;
     th++;
     if(th==24)
     {
      th=0;
      dd++;
      week++;
      if(week==8)
       week=1;   //星期week
     }
    }
   }
  }

  //閏年二月
//  if(dy/400==0||(dy/100!=0&&dy/4==0))
  if(dy/4==0)        //考慮到實(shí)際應(yīng)用中年份變化范圍不大所以取年份的后面兩位
   dm[2]=29;
  else
   dm[2]=20;

  //年月日
  if(dd==dm[dmi]+1)
  {
   dd=1;
   dmi++;
   if(dmi==13)
   {
    dmi=1;
    dy++;
   }
  }

  if(key==0)   //時(shí)間日期切換
  {
   delay(15);
   if(key==0)
   {
    flag=~flag;
    while(!key);
   }
  }

  if(key1==0)    //12、24切換
  {
   delay(12);
   if(key1==0)
   {
    flag1=~flag1;
    while(!key1);
   }
  }
  if(flag==0)
   {
    if(flag1==0)
    display_time0();
    else
    display_time1();
   }
  else
  display_day();
}

uchar add(uchar i,j,n)        //add 1
{
if(key1==0)
   delay(12);
   if(key1==0)
   while(!key1)   //按著不放快速加1
   {
    delay(80);
    while(!key1)
    {
     display(i,n);
     delay(500);
     i++;
     if(i>=j)
      i=0;
    }
   }
return i;
}

uchar keyscan()      //鍵盤掃描
{
unsigned char a;
P0=0xf0;
if(P0!=0xf0)
  delay(12);
  if(P0!=0xf0)
  {
   a=P0;
   TR0=0;
   delay(1);
  }
  P0=0x0f;
  a=a|P0;
switch(a)
{
  case 0xee:     //00
    ts=add(ts,60,4);
    break;
  case 0xde:    //01
    tm=add(tm,60,2);
    break;
  case 0xbe:    //02
    th=add(th,24,0);
    break;
  case 0x7e:    //03
    week=add(week,7,6);
    break;

  case 0xed:    //10
    dd=add(dd,dm[dmi],4);
    break;
  case 0xdd:    //11
    dmi=add(dmi,12,2);
    break;
  case 0xbd:    //12
    dy=add(dy,99,0);
    break;
  case 0x7d:      //13
    TR0=1;
    break;

  default :break;
}
return a;
}

void main(void)
{
//初始化
TMOD=0x01;
TH0=(65536-50000)/256;
TL0=(65536-50000)%256;
EA=1;
ET0=1;
TR0=1; //調(diào)整時(shí)間的時(shí)候用TR0=0使時(shí)間暫停

while(1)
{
    keyscan();

    display_dt();
}
}

作者: cxspoco 時(shí)間: 2009-8-19 14:19

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