液晶1602显示时钟.doc

#include#define uchar unsigned char #define uint unsigned intuchar code table= 2011-5-25 ;uchar code table1= 23:59:55;sbit rs=P25;sbit rw=P26;sbit en=P27;sbit d1=P10;sbit d2=P11;sbit d3=P12;sbit d4=P14;uchar count,shi,fen,miao,dnum;void delay(uchar z)/延时uint x,y;for(x=110;x0;x-)for(y=z;z0;z-);void write_com(uchar com) /写指令 rs=0; rw=0; en=0; P0=com; delay(5); en=1; delay(5); en=0;void write_date(uchar date)/写数据rs=1;rw=0;en=0;P0=date;delay(5);en=1;delay(5);en=0;void write_sfm(uchar add,uchar date) uchar shi,ge; shi=date/10; 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void unit()uchar num;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0x80for(num=0;num12;num+) /第一行显示table数组write_date(tablenum);delay(20);write_com(0x80+0x40);for(num=0;num11;num+) /第二行显示table1数组write_date(table1num);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;miao=55;void jishu() /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);void change()d4=0;if(d1=0) /移光标delay(10);if(d1=0)while(!d1);dnum+;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=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);if(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(shi=-1)shi=23;write_sfm(3,shi);write_com(0x80+0x40+4);void main()unit(