单片机LCD1602显示年月日时钟带星期和闹钟

长春工业大学测控技术与仪器专业单片机LCD1602显示年月日时钟带星期和闹钟，可识别闰年下载文档即可完全复制#include <reg52.h>#define uchar unsigned char#define uint unsigned intsbit lcdrs = P0^7;//液晶引脚定义sbit led_cs = P0^6;sbit lcden = P0^5;sbit boom = P3^6;sbit key1 = P3^5;sbit key2 = P3^4;sbit key3 = P3^3;sbit keyE = P3^2;ucharnum,key1num,key2num,count,hour,min,sec,day,mon,year,shi,fen,miao ,week;char ye1,ye2;uchar code cg_1602[]={ 0x08,0x0f,0x12,0x0f,0x0a,0x1f,0x02,0x02,0x0f,0x09,0x0f,0x09,0x0f,0x09,0x11,0x00,0x0f,0x09,0x09,0x0f,0x09,0x09,0x0f,0x00,0x08,0x0f,0x12,0x0f,0x0a,0x1f,0x02,0x02,};//"年月日"/*延时函数*/void delay(uint xms){uint i,j;for(i=xms;i>0;i--)for(j=114;j>0;j--);}/*1602液晶*/void write_com(uchar com)//写命令{lcdrs=0;lcden=0;P2=com;delay(5);lcden=1;delay(5);lcden=0;}void write_data(uchar date)//写数据{lcdrs=1;lcden=0;P2=date;delay(5);lcden=1;delay(5);lcden=0;}void write_by_xy(uchar x,uchar y)//坐标定位{uchar address;if(y==0)address=0x80+x;//y=0,写第一行elseaddress=0xc0+x;//y=1,写第二行write_com(address);}/*void write_char(uchar x,uchar y,uchar date)//坐标定位显示{write_by_xy(x,y);//先定位write_data(date);//后写数}*/void write_string(uchar x,uchar y,uchar *s)//写字符串{write_by_xy(x,y);//设定显示位置while(*s)//write character{P2=*s;write_data(*s);}}void write_sfm(uchar add,uchar date)//写时分秒函数{uchar hour,ge;hour=date/10;//分解一个2位数的十位和个位ge=date%10;write_com(0x80+add);//设置显示位置write_data(0x30+hour);//送去液晶显示十位write_data(0x30+ge); //送去液晶显示个位}void write_cg()//写入固定汉字和符号{write_com(0x40); //设定CGRAM地址for(num=0;num<24;num++) //将自定义字型码写入CGRAM中{write_data(cg_1602[num]);}write_com(0xc4);//年{write_data(0);write_com(0xc7);//月{write_data(1);}write_com(0xca);//日{write_data(2);}write_string(2,0,":");write_string(5,0,":");write_string(0x0a,0,":");write_string(0x0d,0,":");write_string(0x0c,1,"W");write_string(0x0d,1,"K");}void init_1602()//初始化{led_cs=0;hour=23;min=59;sec=55;key1num=0;count=0;day=28;mon=2;ye1=2 0;ye2=13;year=ye1*100+ye2;boom=0;shi=0;fen=0;miao=0;week=7;write_com(0x38);write_com(0x0c);write_com(0x06);write_com(0x01);write_string(0,1,"2013");write_string(5,1,"02");write_string(8,1,"28");write_sfm(8,shi);write_sfm(0x0b,fen);write_sfm(0x0e,miao);write_sfm(0,hour);write_sfm(3,min);write_sfm(6,sec);write_sfm(0x48,day);write_sfm(0x45,mon);write_sfm(0x40,ye1);write_sfm(0x42,ye2);write_sfm(0x4e,week);write_cg();TMOD=0x01;//设置定时器0工作模式1 TH0=(65536-50000)/256;//定时器装初值TL0=(65536-50000)%256;EA=1; //开总中断ET0=1; //开定时器0中断TR0=1; //启动定时器0}/*键盘扫描函数*/void keyscan()//按键扫描函数{//keyE =0;if(key1==0){delay(5);if(key1==0)//确认功能键被按下{key1num++;//功能键按下次数记录while(!key1);//释放确认if(key1num==1)//第一次被按下时{TR0=0; //关闭定时器write_com(0x80+7);//光标定位到秒位置write_com(0x0f); //光标开始闪烁}if(key1num==2)//第二次按下光标闪烁定位到分钟位置{write_com(0x80+4);}if(key1num==3)//第三次按下光标闪烁定位到小时位置{write_com(0x80+1);}if(key1num==4)//第四次按下光标闪烁定位到日位置{write_com(0x80+0x49);}if(key1num==5)//第五次按下光标闪烁定位到月位置{write_com(0x80+0x46);}if(key1num==6)//第六次按下光标闪烁定位到年2位置{write_com(0x80+0x43);}if(key1num==7)//第七次按下光标闪烁定位到年1位置{write_com(0x80+0x41);}if(key1num==8)//第八次按下光标闪烁定位到星期位置{write_com(0x80+0x4f);}if(key1num==9)//第九次按下{key1num=0;//记录按键数清零write_com(0x0c);//取消光标闪烁TR0=1; //启动定时器使时钟开始走}}}if(key1num!=0)//只有功能键被按下后，增加和减小键才有效{if(key2==0){delay(5);if(key2==0)//增加键确认被按下{while(!key2);//按键释放if(key1num==1)//若功能键第一次按下{sec++; //则调整秒加1if(sec==60)//若满60后将清零sec=0;write_sfm(6,sec);//每调节一次送液晶显示一下write_com(0x80+7);//显示位置重新回到调节处}if(key1num==2)//若功能键第二次按下{min++;//则调整分钟加1if(min==60)//若满60后将清零min=0;write_sfm(3,min);//每调节一次送液晶显示一下write_com(0x80+4);//显示位置重新回到调节处}if(key1num==3)//若功能键第三次按下{hour++;//则调整小时加1if(hour==24)//若满24后将清零hour=0;write_sfm(0,hour);;//每调节一次送液晶显示一下write_com(0x80+1);//显示位置重新回到调节处}if(key1num==4)//若功能键第四次按下{day++;//则调整日加1if(day>31)//若大于31后将置一day=1;write_sfm(0x48,day);//每调节一次送液晶显示一下write_com(0x80+0x48);//显示位置重新回到调节处}if(key1num==5)//若功能键第五次按下{mon++;//则调整月加1if(mon>12)//若大于12后将置一mon=1;write_sfm(0x45,mon);//每调节一次送液晶显示一下write_com(0x80+0x45);//显示位置重新回到调节处}if(key1num==6)//若功能键第六次按下{ye2++;//则调整年加1if(ye2==0x0a)//若满99后将清零ye2=0;year=ye1*100+ye2;write_sfm(0x42,ye2);//每调节一次送液晶显示一下write_com(0x80+0x42);//显示位置重新回到调节处}if(key1num==7)//若功能键第七次按下{ye1++;//则调整年加100if(ye1==0x0a)//若满99后将清零ye1=0;year=ye1*100+ye2;write_sfm(0x40,ye1);//每调节一次送液晶显示一下write_com(0x80+0x40);//显示位置重新回到调节处}if(key1num==8)//若功能键第八次按下{week++;//则调整周加一if(week>7)//若大于7后置一week=1;write_sfm(0x4f,week);//每调节一次送液晶显示一下write_com(0x80+0x4f);//显示位置重新回到调节处}}}if(key3==0){delay(5);if(key3==0)//确认减小键被按下{while(!key3);//按键释放if(key1num==1)//若功能键第一次按下{sec--;//则调整秒减1if(sec==-1)//若减到负数则将其重新设置为59sec=59;write_sfm(6,sec);//每调节一次送液晶显示一下write_com(0x80+7);//显示位置重新回到调节处}if(key1num==2)//若功能键第二次按下{min--;//则调整分钟减1if(min==-1)//若减到负数则将其重新设置为59min=59;write_sfm(3,min);//每调节一次送液晶显示一下write_com(0x80+4);//显示位置重新回到调节处}if(key1num==3)//若功能键第三次按下{hour--;//则调整小时减1if(hour==-1)//若减到负数则将其重新设置为23 hour=23;write_sfm(0,hour);//每调节一次送液晶显示一下write_com(0x80+1);//显示位置重新回到调节处}if(key1num==4)//若功能键第四次按下{day--;//则调整日减1if(day==0)//若日为零时将置一day=31;write_sfm(0x48,day);//每调节一次送液晶显示一下write_com(0x80+0x49);//显示位置重新回到调节处}if(key1num==5)//若功能键第五次按下{mon--;//则调整月减1if(mon==0)//若月为零将置一mon=12;write_sfm(0x45,mon);//每调节一次送液晶显示一下write_com(0x80+0x45);//显示位置重新回到调节处}if(key1num==6)//若功能键第六次按下{ye2--;//则调整年减1if(ye2<0)//若小于零后将设置为99ye2=99;year=ye1*100+ye2;write_sfm(0x42,ye2);//每调节一次送液晶显示一下write_com(0x80+0x42);//显示位置重新回到调节处}if(key1num==7)//若功能键第七次按下{ye1--;//则调整年减100if(ye1<0)//若小于零后将设置为99ye1=99;year=ye1*100+ye2;write_sfm(0x40,ye1);//每调节一次送液晶显示一下write_com(0x80+0x40);//显示位置重新回到调节处}if(key1num==8)//若功能键第八次按下{week--;//则调整周减一if(week==0)//若等于0后将置7week=7;write_sfm(0x4f,week);//每调节一次送液晶显示一下write_com(0x80+0x4f);//显示位置重新回到调节处}}}}if(keyE==0){delay(5);if(keyE==0)//确认功能键被按下{key2num++;//功能键按下次数记录while(!keyE);//释放确认if(key2num==1)//第一次被按下时{TR0=0; //关闭定时器write_com(0x80+0x0f);//光标定位到秒位置write_com(0x0f); //光标开始闪烁}if(key2num==2)//第二次按下光标闪烁定位到分钟位置{write_com(0x80+0x0c);}if(key2num==3)//第三次按下光标闪烁定位到小时位置{write_com(0x80+9);}if(key2num==4)//第八次按下{key2num=0;//记录按键数清零write_com(0x0c);//取消光标闪烁TR0=1; //启动定时器使时钟开始走}}}if(key2num!=0)//只有功能键被按下后，增加和减小键才有效{if(key2==0){delay(5);if(key2==0)//增加键确认被按下{while(!key2);//按键释放if(key2num==1)//若功能键第一次按下{miao++; //则调整秒加1if(miao==60)//若满60后将清零miao=0;write_sfm(0x0e,miao);//每调节一次送液晶显示一下write_com(0x80+0x0e);//显示位置重新回到调节处}if(key2num==2)//若功能键第二次按下{fen++;//则调整分钟加1if(fen==60)//若满60后将清零fen=0;write_sfm(0x0b,fen);//每调节一次送液晶显示一下write_com(0x80+0x0b);//显示位置重新回到调节处}if(key2num==3)//若功能键第三次按下{shi++;//则调整小时加1if(shi==24)//若满24后将清零shi=0;write_sfm(8,shi);;//每调节一次送液晶显示一下write_com(0x80+8);//显示位置重新回到调节处}}}if(key3==0){delay(5);if(key3==0)//确认减小键被按下{while(!key3);//按键释放if(key2num==1)//若功能键第一次按下{miao--;//则调整秒减1if(miao==-1)//若减到负数则将其重新设置为59miao=59;write_sfm(0x0e,miao);//每调节一次送液晶显示一下write_com(0x80+0x0e);//显示位置重新回到调节处}if(key2num==2)//若功能键第二次按下{fen--;//则调整分钟减1if(fen==-1)//若减到负数则将其重新设置为59fen=59;write_sfm(0x0b,fen);//每调节一次送液晶显示一下write_com(0x80+0x0b);//显示位置重新回到调节处}if(key2num==3)//若功能键第三次按下{shi--;//则调整小时减1if(shi==-1)//若减到负数则将其重新设置为23shi=23;write_sfm(8,shi);//每调节一次送液晶显示一下write_com(0x80+8);//显示位置重新回到调节处}}}}}/*主函数*/void main(){led_cs=0;init_1602();while(1){keyscan();}}/*中断函数*/void timer0() interrupt 1//定时器0中断服务程序{TH0=(65536-50000)/256;//再次装定时器初值TL0=(65536-50000)%256;count++; //中断次数累加if(count==20) //20次50毫秒为1秒{count=0;sec++;if(sec==60)//秒加到60则进位分钟{sec=0;//同时秒数清零min++;if(min==60)//分钟加到60则进位小时{min=0;//同时分钟数清零hour++;//boom=1;//delay(5);//boom=0;if(hour==24)//小时加到24则小时清零{hour=0;day++;week++;if(week>7){week=1;}if(mon==1){if(day>31)day=1;mon++;}}if(mon==2){if((year%4==0 && year%100!=0)||year%4==0) {if(day>29){day=1;mon++;}}else if(day>28){day=1;mon++;}}if(mon==3)if(day>31) {day=1; mon++;}}if(mon==4) {if(day>30) {day=1; mon++;}}if(mon==5) {if(day>31) {day=1; mon++;}if(mon==6) {if(day>30) {day=1; mon++;}}if(mon==7) {if(day>31) {day=1; mon++;}}if(mon==8) {if(day>31) {day=1;}}if(mon==9) {if(day>30) {day=1; mon++;}}if(mon==10) {if(day>31) {day=1; mon++;}}if(mon==11) {if(day>30) {mon++;}}if(mon==12){if(day>31){day=1;mon=1;ye2++;}}}write_sfm(0x4e,week);write_sfm(0x48,day);write_sfm(0x45,mon);write_sfm(0x40,ye1);write_sfm(0x42,ye2);}write_sfm(0,hour);//小时若变化则重新写入}write_sfm(3,min);//分钟若变化则重新写入}write_sfm(6,sec); //秒若变化则重新写入if((hour==shi && min==fen) && sec==miao) {boom=1;delay(5);boom=0;}}。