#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};
//???????
uchar i;
uchar code table[]={0xBF,0x86,0xDB,0xCF,0xE6,0xED,0xFD,0xA7,0xFF,0xEF,0xC0};
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={{9,20},4,20,1};
time now={11,8,10};
void main()
{
TMOD=0x01;
TL0=(65536-1000)%256;
TH0=(65536-1000)/256;
IE=0x82; //EA=1;ET0=1?????????????
TCON=0x10; //???????
while(1)
{
P1=0xff;
shuju=P1&0xff;
qxiang=shuju&0x80;
switch(qxiang)
{
case(0x80):switch(shuju)
{
case(0xfe) : //???
{
EA=1;
EX0=1; //IE=0x83; //EA=1;ET0=1;EX0=0?????,???????,?????
IT0=1; //TCON=0x11; //TR0=1;IT0=1;?????,?????????
}break;
case(0xfd) : //???
{
EA=1;
EX0=1; // IE=0x83;
IT0=1; //TCON=0x11;
}break;
case(0xfb) : //???
{
EA=1;
EX0=1;
IT0=1;
}break;
case(0xf7) : //????
{
EA=1;
EX0=1;
IT0=1;
}break;
case(0xef) : //???
{
EA=1;
EX0=1;
IT0=1;
}break;
case(0xdf): //???
{
EA=1;
EX0=1;
IT0=1;
}break;
case(0xbf): //???
{
EA=1;
EX0=1;
IT0=1;
}break;
default: //??????
{
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 inter0() interrupt 0 using 0
{
uchar result,z;
result=shuju;
switch(qxiang)
{
case(0x80): switch(result)
{
case(0xfe) : // if(result==0xfe) //??? +
{
now.second++;
if(now.second>=60)
{
now.second=0;
}
display();
}break;
case(0xfd) : //if(result==0xfd) //??? +
{
now.minute++;
if(now.minute>=60)
{
now.minute=0;
}
display();
}break;
case(0xfb) : //if(result==0xfb) //??? +
{
now.hour++;
if(now.hour>=24)
{
now.hour=0;
}
display();
}break;
case(0xf7) : // if(result==0xf7) //???? +
{
today.week++;
if(today.week>=8)
{
today.week=1;
}
display();
}break;
case(0xef) : //if(result==0xef) //???? +
{
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) : //if(result==0xdf) //??? +
{
today.month++;
if(today.month>=13)
{
today.month=1;
}
display();
} break;
case(0xbf) : //if(result==0xbf) //??? +
{
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: //??????
{
EA=1;
TR0=1;
EX0=0;
}break;
}break;
case(0x00): switch(result)
{
case(0x7e): //if(result==0x7f) //???—
{
if(now.second>0)
now.second=now.second-1;
else now.second=59;
display();
}break;
case(0x7d): //if(result==0x7d) //???—
{
if(now.minute>0)
now.minute=now.minute-1;
else now.minute=59;
display();
} break;
case(0x7b) : //if(result==0x7b) // ???-
{
if(now.hour>0)
now.hour=now.hour-1;
else now.hour=23 ;
display();
}break;
case(0x77) : //if(result==0x77) // ???—
{
if(today.week>1)
today.week=today.week-1;
else today.week=7;
display();
}break;
case(0x6f): //if(result==0x6f) // ????—
{
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): //if(result==0x5f) // ???—
{
if(today.month>1)
today.month=today.month-1;
else today.month=12;
display();
}break;
case(0x3f) : // ???——
{
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: //??????
{
EA=1;
TR0=1;
EX0=0;
}break;
}break;
}
}
void timer0_int() interrupt 1 using 1
{
uchar c;
TL0=(65536-1000)%256; //?????10ms
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();
}
void delay(uchar k)
{
uchar m,n;
for(m=0;m<=k;m++)
for(n=0;n<=40;n++);
}
// ??????
uchar monthday(uchar a,uchar b)
{
uchar x,y;
x=a*100+b;
if(x%4!=0)
y=0;
else if(x%100!=0)
y=1;
else if(x%400!=0)
y=0;
else y=1;
//if((x%4==0 && x%100!=0)|| (x%400==0))
// y=1;
// else y=0;
return(y) ;
}
void display()
{
buffer[0]=now.second%10;
buffer[1]=now.second/10;
buffer[2]=10;
buffer[3]=now.minute%10;
buffer[4]=now.minute/10;
buffer[5]=10;
buffer[6]=now.hour%10;
buffer[7]=now.hour/10;
buffer[8]=today.week%10;
buffer[9]=today.week/10;
buffer[10]=10;
buffer[11]=today.day%10;
buffer[12]=today.day/10;
buffer[13]=10;
buffer[14]=today.month%10;
buffer[15]=today.month/10;
buffer[16]=10;
buffer[17]=today.year[0]%10;
buffer[18]=today.year[0]/10;
buffer[19]=today.year[1]%10;
buffer[20]=today.year[1]/10;
buffer[21]=10;
for(i=0;i<=21;i++)
{
P0=table[buffer[i]];
P2=scan[i];
delay(8);
P2=0xFF;
}
}
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