基于51单片机的简易电子表

基于51单片机的简易电子表

/***************************************************************** 阿斌独家制作:

电子表1602液晶显示带有闹钟功能

每天到指定时间后闹钟提醒闹钟响后按s4键关闭闹钟

如果闹钟响后大约20秒未检测到s4键按下，则闹钟自动关闭

******************************************************************/ 主程序：

#include

#define uchar unsigned char

#define uint unsigned int

sbit lcden=P2^2;

sbit lcdrw=P2^1;

sbit lcdrs=P2^0;

sbit s1=P3^0;

sbit s2=P3^1;

sbit s3=P3^2;

sbit s4=P3^3;

sbit rd=P3^7;

sbit beep=P1^2;

uint nian,a;

uchar count,s1num,i,xq,ri,yue,flag;

char shi,fen,miao,shia,fena,miaoa;

uchar code table[]=" 2012-11-19 MON"; uchar code table1[]=" 00:00:00"; uchar code xq1[]="MON";

uchar code xq2[]="TUE";

uchar code xq3[]="WED";

uchar code xq4[]="THU";

uchar code xq5[]="FRI";

uchar code xq6[]="SA T";

uchar code xq7[]="SUN";

void delay(uint z)

{

uint x,y;

for(x=z;x>0;x--)

for(y=110;y>0;y--);

}

void didi()

{

beep=1;

delay(5);

beep=0;

delay(5);

beep=1;

delay(5);

beep=0;

delay(5);

}

void write_com(uchar com) {

lcdrs=0;

lcden=0;

lcdrw=0;

P0=com;

delay(5);

lcden=1;

delay(5);

lcden=0;

}

void write_date(uchar date) {

lcdrs=1;

lcden=0;

lcdrw=0;

P0=date;

delay(5);

lcden=1;

delay(5);

lcden=0;

}

void init()

{

uchar num;

lcden=0;

xq=1;ri=19;yue=11;nian=2012;

a=1000;flag=0;

shia=00;fena=00;miaoa=05;

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(5);

}

write_com(0x80+0x40);

for(num=0;num<12;num++)

{

write_date(table1[num]);

delay(5);

}

TMOD=0x01;

TH0=(65536-50000)/256;

TL0=(65536-50000)%256;

EA=1;

ET0=1;

TR0=1;

}

void write_sfm2(uchar add,uint date) {

uchar 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_sfm1(uchar add,uchar date) {

uchar shi,ge;

shi=date/10;

ge=date%10;

write_com(0x80+add);

write_date(0x30+shi);

write_date(0x30+ge);

}

void write_sfm(uchar add,uchar date) {

uchar shi,ge;

shi=date/10;

ge=date%10;

write_com(0x80+0x40+add);

write_date(0x30+shi);

write_date(0x30+ge);

}

void write_xq()

{

write_com(0x80+13);

switch(xq)

{

case 1: for(i=0;i<3;i++)

{

write_date(xq1[i]);

delay(5);

} break;

case 2: for(i=0;i<3;i++)

{

write_date(xq2[i]);

delay(5);

} break;

case 3: for(i=0;i<3;i++)

{

write_date(xq3[i]);

delay(5);

} break;

case 4: for(i=0;i<3;i++)

{

write_date(xq4[i]);

delay(5);

} break;

case 5: for(i=0;i<3;i++)

{

write_date(xq5[i]);

delay(5);

} break;

case 6: for(i=0;i<3;i++)

{

write_date(xq6[i]);

delay(5);

} break;

case 7: for(i=0;i<3;i++)

{

write_date(xq7[i]);

delay(5);

} break;

default: break;

}

}

void keyscan1()

{

if(s4==0)

{

delay(5);

if(s4==0)

{

while(!s4);

flag=1;

}

}

}

void keyscan()

{

rd=0;

if(s1==0)

{

delay(5);

if(s1==0)

{

s1num++;

while(!s1);

if(s1num==1)

{

TR0=0;

write_com(0x80+0x40+10);

write_com(0x0f);

}

}

if(s1num==2)

{

write_com(0x80+0x40+7);

}

if(s1num==3)

{

write_com(0x80+0x40+4);

}

if(s1num==4)

{

write_com(0x80+13);

}

if(s1num==5)

{

write_com(0x80+10);

}

if(s1num==6)

{

write_com(0x80+7);

}

if(s1num==7)

{

write_com(0x80+2);

}

if(s1num==8)

{

s1num=0;

write_com(0x0c);

TR0=1;

}

}

if(s1num!=0)

{

if(s2==0)

{

delay(5);

if(s2==0)

{

while(!s2);

if(s1num==1)

{

miao++;

if(miao==60)

miao=0;

write_sfm(10,miao);

write_com(0x80+0x40+10);

}

if(s1num==2)

{

fen++;

if(fen==60)

fen=0;

write_sfm(7,fen);

write_com(0x80+0x40+7);

}

if(s1num==3)

{

shi++;

if(shi==24)

shi=0;

write_sfm(4,shi);

write_com(0x80+0x40+4);

}

if(s1num==4)

{

xq++;

if(xq==8)

xq=1;

write_xq();

write_com(0x80+13);

}

if(s1num==5)

{

ri++;

switch(yue)

{

case 1: case 3: case 5: case 7:

case 8: case 10: case 12: if(ri==32) ri=1; break;

case 4: case 6: case 9: case 11: if(ri==31) ri=1; break;

case 2:

if(nian%4==0&&nian%100!=0||nian%400==0)

{

if(ri==30)

ri=0;

}

else if(ri==29)

ri=0;

break;

}

write_sfm1(10,ri);

write_com(0x80+10);

}

if(s1num==6)

{

yue++;

if(yue==13)

yue=1;

write_sfm1(7,yue);

write_com(0x80+7);

}

if(s1num==7)

{

nian++;

if(nian==2100)

nian=2000;

write_sfm2(2,nian);

write_com(0x80+2);

}

}

}

if(s3==0)

{

delay(5);

if(s3==0)

{

while(!s3);

if(s1num==1)

{

miao--;

if(miao==-1)

miao=59;

write_sfm(10,miao);

write_com(0x80+0x40+10);

}

if(s1num==2)

{

fen--;

if(fen==-1)

fen=59;

write_sfm(7,fen);

write_com(0x80+0x40+7); }

if(s1num==3)

{

shi--;

if(shi==-1)

shi=23;

write_sfm(4,shi);

write_com(0x80+0x40+4); }

if(s1num==4)

{

xq--;

if(xq==0)

xq=7;

write_xq();

write_com(0x80+13);

}

if(s1num==5)

{

ri--;

switch(yue)

{

case 1: case 3: case 5: case 7:

case 8: case 10: case 12: if(ri==0) ri=31; break;

case 4: case 6: case 9: case 11: if(ri==0) ri=30; break;

case 2: if(nian%4==0&&nian%100!=0||nian%400==0)

{

if(ri==0)

ri=29;

}

else if(ri==0)

ri=28;

break;

}

write_sfm1(10,ri);

write_com(0x80+10);

}

if(s1num==6)

{

yue--;

if(yue==0)

yue=12;

write_sfm1(7,yue);

write_com(0x80+7);

}

if(s1num==7)

{

nian--;

if(nian==1999)

nian=2099;

write_sfm2(2,nian);

write_com(0x80+2);

}

}

}

}

}

void set_alarm()

{

if(shi==shia&&fen==fena&&miao==miaoa) {

while(a--)

{

didi();

keyscan1();

if(flag==1)

{

flag=0;

break;

}

}

a=1000;

}

}

void main()

{

init();

while(1)

{

keyscan();

set_alarm();

}

}

void timer0() interrupt 1

{

TH0=(65536-50000)/256;

TL0=(65536-50000)%256;

count++;

if(count==18)

{

count=0;

miao++;

if(miao==60)

{

miao=0;

fen++;

if(fen==60)

{

fen=0;

shi++;

if(shi==24)