#include<reg52.h>
#define uchar unsigned char
#define uint unsigned int
uchar code table0[]=" 2017-4-25 TUE ";
uchar code table1[]=" 00:00:00";
uchar code table2[]=" 201405204106 ";
uchar code table3[]="DianXin GaoXiang";
uchar code table4[]="MONTUEWEDTHUFRISATSUN";
uchar count,s1num;
char miao,fen,shi,ri,yue,flag,flag_di,flag1,amiao,afen,ashi;
uint nian;
sbit lcd_rs = P2^5;
sbit lcd_rw = P2^6;
sbit lcd_en = P2^7;
sbit s1=P3^0; //主按鍵
sbit s2=P3^1; //加
sbit s3=P3^2; //減
sbit s4=P3^3; //開啟鬧鐘
sbit beep=P2^0; //
sbit Output_squ=P3^6;
void delay(uint z)//延時子函數
{
uint x,y;
for(x=z;x>0;x--)
for(y=110;y>0;y--);
}
void write_com(uchar com)//寫命令函數
{
lcd_rs = 0;
P0= com;
delay(5);
lcd_en=1;
delay(5);
lcd_en=0;
}
void write_date(uchar date)//寫數據函數
{
lcd_rs = 1;
P0= date;
delay(5);
lcd_en=1;
delay(5);
lcd_en=0;
}
void init()//初始化函數
{
int num;
shi=0;
fen=0;
miao=0;
ri=25;
yue=4;
nian=2017;
lcd_en=0;
lcd_rw=0;
write_com(0x38);//顯示設置模式
write_com(0x0c);//00001100開顯示，不顯示光標，光標不閃爍
write_com(0x06);//00000110地址指針加一，整屏不移動
write_com(0x01);//清屏
write_com(0x80);
for(num=0;num<16;num++)//顯示數字201405204106
{
write_date(table2[num]);
delay(100);
}
write_com(0x80+0x40);
for(num=0;num<16;num++)//顯示DianXin GaoXiang
{
write_date(table3[num]);
delay(100);
}
delay(500);
write_com(0x01);
write_com(0x80);
for(num=0;num<16;num++)//顯示日期
{
write_date(table0[num]);
delay(5);
}
write_com(0x80+0x40);
for(num=0;num<12;num++)//顯示時間
{
write_date(table1[num]);
delay(5);
}
TMOD=0x51;//啟動定時器中斷
TH0=0X3C; //50ms
TL0=0XB0;
TH1=0X00;
TL1=0X00;
EA=1;
ET0=1;
TR0=1;//打開定時器0
TR1=1; //打開定時器0
}
void write_sfm(uchar add,uchar date)//寫時分秒函數
{
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(uint add,uint date)//寫年月日函數，此處若用uchar范圍只有0-255
{ //不夠，改用uint(0-65535)
uint qian,bai,shi,ge;
qian=date/1000;
bai=date%1000/100;
shi=date%100/10;
ge=date%10;
write_com(0x80+add);
write_date(0x30+qian);
write_date(0x30+bai);
write_date(0x30+shi);
write_date(0x30+ge);
}
void write_yr(uchar add,uchar date)//寫月日函數
{
uchar shi,ge;
shi=date/10;
ge=date%10;
write_com(0x80+add);
write_date(0x30+shi);
write_date(0x30+ge);
}
void keyscan()//按鍵掃描函數
{
int m,n;
if(s1==0)
{
delay(5);
if(s1==0)//按鍵1光標移位掃描
{
s1num++;
if(s1num==1)
{
while(!s1);//等待按鍵松手
write_com(0x80+0x40+10);
TR0=0;//關閉定時器
write_com(0x0f); //開顯示，顯示光標，光標閃爍
}
if(s1num==2)
{
while(!s1);
write_com(0x80+0x40+7);
}
if(s1num==3)
{
while(!s1);
write_com(0x80+0x40+4);
}
if(s1num==4)
{
while(!s1);
write_com(0x80+3);
}
if(s1num==5)
{
while(!s1);
write_com(0x80+6);
}
if(s1num==6)
{
while(!s1);
write_com(0x80+9);
}
if(s1num==7)
{
while(!s1)
write_com(0x80+13);
}
if(s1num==8)
{
while(!s1);
s1num=0;
write_com(0x0c);
TR0=1;//開定時器
}
}
}
if(s1num!=0)
{
if(s2==0)//按鍵2加功能
{
delay(5);
if(s2==0)
{
while(!s2);
if(s1num==1)//秒加
{
miao++;
if(miao==60)
{
miao=0;
}
write_sfm(10,miao);
write_com(0x80+0x40+10);
}
if(s1num==2)//分加
{
fen++;
if(fen==60)
{
fen=0;
}
write_sfm(7,fen);
write_com(0x80+0x40+7);
}
if(s1num==3)//時加
{
shi++;
if(shi==24)
{
shi=0;
}
write_sfm(4,shi);
write_com(0x80+0x40+4);
}
if(s1num==4)//年加
{
nian++;
if(nian==10000)
{
nian=2000;
}
write_nyr(1,nian);
write_com(0x80+3);
}
if(s1num==5)//月份加
{
yue++;
if(yue==13)
{
yue=1;
}
write_yr(6,yue);
write_com(0x80+6);
}
if(s1num==6)//日期加
{
ri++;
if(ri==29&&yue==2&&!((nian%4==0&&nian%100!=0)||nian%400==0))
{
ri=1;//平年
}
if(ri==30&&yue==2&&((nian%4==0&&nian%100!=0||nian%400==0)))
{
ri=1;//閏年
}
if(ri==31&&(yue==4||yue==6||yue==9||yue==11))
{
ri=1;
}
if(ri==32)
{
ri=1;
}
write_yr(9,ri);
write_com(0x80+9);
}
if(s1num==7)//星期加
{
m=m+3;
if(m==21)
m=0;
write_com(0x80+12);
for(n=m;n<m+3;n++)
{
write_date(table4[n]);
delay(5);
}
write_com(0x80+13);
}
}
}
if(s3==0)//按鍵3減功能
{
delay(5);
if(s3==0)
{
while(!s3);
if(s1num==1)//秒減
{
miao--;
if(miao==-1)
{
miao=59;
}
write_sfm(10,miao);
write_com(0x80+0x40+10);
}
if(s1num==2)//分減
{
fen--;
if(fen==-1)
fen=59;
write_sfm(7,fen);
write_com(0x80+0x40+7);
}
if(s1num==3)//時減
{
shi--;
if(shi==-1)
shi=23;
write_sfm(4,shi);
write_com(0x80+0x40+4);
}
if(s1num==4)//年減
{
nian--;
if(nian==1999)
nian=2000;
write_nyr(1,nian);
write_com(0x80+3);
}
if(s1num==5)//月份減
{
yue--;
if(yue==0)
yue=12;
write_yr(6,yue);
write_com(0x80+6);
}
if(s1num==6)//日減
{
ri--;
if(ri==0)
{
if(yue==2&&!((nian%4==0&&nian%100!=0)||nian%400==0))
{
ri=28;//平年
}
if(yue==2&&((nian%4==0&&nian%100!=0||nian%400==0)))
{
ri=29;//閏年
}
if(yue==4||yue==6||yue==9||yue==11)
{
ri=30;
}
if(yue==1||yue==3||yue==5||yue==7||yue==9||yue==11)
ri=31;
}
write_yr(9,ri);
write_com(0x80+9);
}
if(s1num==7)//星期減
{
m=m-3;
if(m==0)
m=21;
write_com(0x80+12);
for(n=m;n-3<m;n++)
{
write_date(table4[n-3]);
delay(5);
}
write_com(0x80+13);
}
}
}
}
}
void main()
{
int i,j;
init();
while(1)
{
keyscan();
if(TL1==8)
{ TH1=0X00;
TL1=0X00;
miao++;
if(miao==60)
{
miao=0;
fen++;
if(fen==60)
{
fen=0;
shi++;
if(shi==24)
{
shi=0;
ri++;
j=j+3;
if(j==21)
j=0;
write_com(0x80+12);
for(i=j;i<j+3;i++)
{
write_date(table4[i]);
delay(5);
}
if(ri==29&&yue==2&&!((nian%4==0&&nian%100!=0)||nian%400==0))
{
ri=1;yue++;//平年
}
if(ri==30&&yue==2&&((nian%4==0&&nian%100!=0||nian%400==0)))
{
ri=1;yue++;//閏年
}
if(ri==31&&(yue==4||yue==6||yue==9||yue==11))
{
ri=1;yue++;
}
if(ri==32)
{
ri=1;yue++;
}
if(yue==13)
{
yue=1;
nian++;
if(nian==10000)
{
nian=2000;
}
write_nyr(1,nian);
}
write_yr(6,yue);
}
write_yr(9,ri);
write_sfm(4,shi);
}
write_sfm(7,fen);
}
write_sfm(10,miao);
}
}
}
void timer() interrupt 1
{
TH0=0X3C;
TL0=0XB0;
Output_squ=~Output_squ;
}
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