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#include<reg51.h>
#include<absacc.h>
#define uchar unsigned char
#define uint unsigned int
//#define ture 1
//#define fault 0
sbit SET=P1^7;
void delay(uchar k);
uchar monthday(uchar a,uchar b);
void display();
uchar code dayofmonth[]={31,28,31,30,31,30,31,31,30,31,30,31};
uchar code scan[]={0xe0,0xe1,0xe2,0xe3,0xe4,0xe5,0xe6,0xe7,
0xe8,0xe9,0xea,0xeb,0xec,0xed,0xee,0xef,
0xf8,0xf9,0xfa,0xfb,0xfc,0xfd}; //掃描的譯碼信號
uchar i;
uchar code table[]={0xBF,0x86,0xDB,0xCF,0xE6,0xED,0xFD,0x87,0xFF,0xEF,0xC0}; //段碼表
uchar buffer[]={0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0};
uchar shuju=0;
uchar state=0;
uchar qxiang;
typedef struct
{
uchar year[2];
uchar month;
uchar day;
uchar week;
}date;
typedef struct
{
uchar hour;
uchar minute;
uchar second;
}time;
uchar count=0;
date today={{18,20},11,14,3}; //設置日期初值
time now={14,30,00}; //設置時間初值
void main()
{
TMOD=0x01;
TL0=(65536-1000)%256;
TH0=(65536-1000)/256;
IE=0x82; //EA=1;ET0=1總中斷允許和定時器中斷允許
TR0=1; //定時器啟動計數
display();
while(1)
{
P1=0xff;
shuju=P1&0xff;
qxiang=shuju&0x80;
switch(qxiang)
{
case(0x80):switch(shuju)
{
case(0xfe) : //秒調整
{
EA=1;
EX0=1; //總中斷允許，外中斷0允許
IT0=1; //中斷0為負跳變觸發
}break;
case(0xfd) : //分調整
{
EA=1;
EX0=1;
IT0=1;
}break;
case(0xfb) : //時調整
{
EA=1;
EX0=1;
IT0=1;
}break;
case(0xf7) : //星期調整
{
EA=1;
EX0=1;
IT0=1;
}break;
case(0xef) : //日調整
{
EA=1;
EX0=1;
IT0=1;
}break;
case(0xdf): //月調整
{
EA=1;
EX0=1;
IT0=1;
}break;
case(0xbf): //年調整
{
EA=1;
EX0=1;
IT0=1;
}break;
default: //時鐘正常計時
{
EA=1;
TR0=1;
EX0=0;
}break;
}break;
case(0x00) :switch(shuju)
{
case(0x7e):
{
EA=1;
EX0=1;
IT0=1;
}break;
case(0x7d):
{
EA=1;
EX0=1;
IT0=1;
}break;
case(0x7b):
{
EA=1;
EX0=1;
IT0=1;
}break;
case(0x77):
{
EA=1;
EX0=1;
IT0=1;
}break;
case(0x6f):
{
EA=1;
EX0=1;
IT0=1;
}break;
case(0x5f):
{
EA=1;
EX0=1;
IT0=1;
}break;
case(0x3f):
{
EA=1;
EX0=1;
IT0=1;
}break;
default:
{
EA=1;
TR0=1;
EX0=0;
}break;
}break;
}
}
}
void int0() interrupt 0 using 0 //中斷服務程序，調節時間
{
uchar result,z;
result=shuju;
switch(qxiang)
{
case(0x80): switch(result)
{
case(0xfe) : //秒調整 +
{
now.second++;
if(now.second>=60)
{
now.second=0;
}
display();
}break;
case(0xfd) : //分調整 +
{
now.minute++;
if(now.minute>=60)
{
now.minute=0;
}
display();
}break;
case(0xfb) : //時調整 +
{
now.hour++;
if(now.hour>=24)
{
now.hour=0;
}
display();
}break;
case(0xf7) : //星期調整 +
{
today.week++;
if(today.week>=8)
{
today.week=1;
}
display();
}break;
case(0xef) : //日調整 +
{
today.day++;
z = monthday(today.year[1],today.year[0]);
if((z==1)&&(today.month==2))
{
if(today.day>=30)
today.day=1;
}
else if (today.day>dayofmonth[today.month-1])
today.day=1;
display();
}break;
case(0xdf) : //月調整 +
{
today.month++;
if(today.month>=13)
{
today.month=1;
}
display();
} break;
case(0xbf) : //年調整 +
{
today.year[0]=today.year[0]+1;
if(today.year[0]>=100)
{
today.year[0]=0;
today.year[1]=today.year[1]+1;
if(today.year[1]>=100)
{
today.year[1]=0;
}
}
display();
}break;
default: //時鐘正常計時
{
EA=1;
TR0=1;
EX0=0;
}break;
}break;
case(0x00): switch(result)
{
case(0x7e): //秒調整-
{
if(now.second>0)
now.second=now.second-1;
else now.second=59;
display();
}break;
case(0x7d): //分調整-
{
if(now.minute>0)
now.minute=now.minute-1;
else now.minute=59;
display();
}break;
case(0x7b) : // 時調整-
{
if(now.hour>0)
now.hour=now.hour-1;
else now.hour=23;
display();
}break;
case(0x77) : // 周調整-
{
if(today.week>1)
today.week=today.week-1;
else today.week=7;
display();
}break;
case(0x6f): // 日調整-
{
z = monthday(today.year[1],today.year[0]);
if((z==1)&&(today.month==2))
{
if(today.day>1)
today.day=today.day-1;
else today.day=29;
}
else {
if(today.day>1)
today.day=today.day-1;
else today.day=dayofmonth[today.month-1];
}
display();
}break;
case(0x5f): // 月調整-
{
if(today.month>1)
today.month=today.month-1;
else today.month=12;
display();
}break;
case(0x3f) : // 年調整-
{
if(today.year[0]>0)
today.year[0]=today.year[0]-1;
else
{
today.year[0]=99;
today.year[1]=today.year[1]-1;
}
display();
}break;
default: //時鐘正常計時
{
EA=1;
TR0=1;
EX0=0;
}break;
}break;
}
}
//定時器中斷程序
void timer0_int() interrupt 1 using 1
{
uchar c;
TL0=(65536-1000)%256;
TH0=(65536-1000)/256;
TR0=1;
count++;
if(count==35)
{
count=0;
now.second=now.second+1;
if(now.second>=60)
{
now.second=0;
now.minute++;
if(now.minute>=60)
{
now.minute=0;
now.hour++;
if(now.hour>=24)
{
now.hour=0;
today.week++;
today.day++;
if(today.week>=8)
{
today.week=1;
}
c=monthday( today.year[1], today.year[0]);
if((c==1)&&(today.month==2))
{
if(today.day>=30)
{
today.day=1;
today.month++;
}
}
else if(today.day>=(dayofmonth[today.month-1]+1))
{
today.day=1;
today.month++;
if(today.month>=13)
{
today.month=1;
today.year[0]=today.year[0]+1;
if(today.year[0]>=100)
{
today.year[0]=0;
today.year[1]=today.year[1]+1;
if(today.year[1]>=100)
{
today.year[1]=0;
}
}
}
}
}
}
}
}
display();
}
//延時程序
void delay(uchar k)
{
uchar m,n;
for(m=0;m<=k;m++)
for(n=0;n<=40;n++);
}
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