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);