液晶1602显示时钟

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1、#include#defineucharunsignedchar#defineuintunsignedintucharcodetable[]="2011-5-25";ucharcodetable1[]="23:59:55";sbitrs=P2^5;sbitrw=P2^6;sbiten=P2^7;sbitd1=P1^0;sbitd2=P1^1;sbitd3=P1^2;sbitd4=P1^4;ucharcount,shi,fen,miao,dnum;voiddelay(ucharz)//延时{uint

2、x,y;for(x=110;x>0;x--)for(y=z;z>0;z--);}voidwrite_com(ucharcom)//写指令{rs=0;rw=0;en=0;P0=com;delay(5);en=1;delay(5);en=0;}voidwrite_date(uchardate)//写数据{rs=1;rw=0;en=0;P0=date;delay(5);en=1;delay(5);en=0;}voidwrite_sfm(ucharadd,uchardate){ucharshi,ge;shi=date/10

3、;ge=date%10;write_com(0x80+0x40+add);//只想要写的地址write_date(0x30+shi);//0x30代表的数字是0，+shi表示shi的数字write_date(0x30+ge);//ge的数字}voidunit(){ucharnum;en=0;write_com(0x38);//显示write_com(0x0c);//光标不显示write_com(0x06);//指针加1，整屏不移动write_com(0x01);//清屏write_com(0x80);//指针指向0

4、x80for(num=0;num<12;num++)//第一行显示table数组{write_date(table[num]);delay(20);}write_com(0x80+0x40);for(num=0;num<11;num++)//第二行显示table1数组{write_date(table1[num]);delay(20);}TMOD=0X01;TH0=(65536-50000)/256;//开启中断TL0=(65536-50000)%256;EA=1;ET0=1;TR0=1;shi=23;fen=59

5、;miao=55;}voidjishu()//计数{if(count==20){count=0;miao++;//秒加if(miao==60){miao=0;fen++;//分加if(fen==60){fen=0;shi++;if(shi==24){shi=0;//时加}write_sfm(3,shi);}write_sfm(6,fen);}write_sfm(9,miao);}}voidchange(){d4=0;if(d1==0)//移光标{delay(10);if(d1==0){while(!d1);dnum

6、++;if(dnum==1){TR0=0;write_com(0x0f);write_com(0x80+0x40+10);}if(dnum==2){write_com(0x80+0x40+7);}if(dnum==3){write_com(0x80+0x40+4);}if(dnum==4){dnum=0;TR0=1;write_com(0x0c);}}}if(d2==0)//加数据{delay(10);if(d2==0){while(!d2);if(dnum==1){miao++;if(miao==60)miao=

7、0;write_sfm(9,miao);//顺序不能换write_com(0x80+0x40+10);//顺序不能换}if(dnum==2){fen++;if(fen==60)fen=0;write_sfm(6,fen);write_com(0x80+0x40+7);}if(dnum==3){shi++;if(shi==24)shi=0;write_sfm(3,shi);write_com(0x80+0x40+4);}}}if(d3==0)//减数据{delay(10);if(d3==0){while(!d3);i

8、f(dnum==1){miao--;if(miao==-1)miao=59;write_sfm(9,miao);write_com(0x80+0x40+10);}if(dnum==2){fen--;if(fen==-1)fen=59;write_sfm(6,fen);write_com(0x80+0x40+7);}if(dnum==3){shi--;if(s