液晶屏-显示时间

1、精品文档6、液晶屏显示时间1 ' 1 ,= a I n a ,* a 1 u a I 1518WL1PDIVADDFQ.VADHXTAL2PQADSpmu苴 n* FOUADS P 口信百 RSTPEl.TAbT工卬曜 F2.VA9 P23A1O FZJW11 ALEPZ.4iM.1Z敌F2J&M13，工 JfiW” PZ.7M15 1 口FJOfRXDfi jpj.irrxDPlPJZTWTBPDJnWTT pi,*F3.«nnF15F3j5iT1”居。 P 1,7F3.TW»-出 五1 TT3* «-a-?-ST-ftTfflCSI:>1

2、BIBB n ! B !RP1.精品文档#include<reg51.h>#include<reg51.h>sbitkey0=P3A5;sbitkey1=P3A6;sbitkey2=P3A7;sbitrs=P1A0;sbitrw=P1A1；sbiten=P1A2;unsignedchari;voiddelayms(unsignedintk);voidwrite_com(unsignedcharcom);voidwrite_dat(unsignedchardat);voidwrite_day(unsignedcharmonth);unsignedcharday,month

3、,year;unsignedchart尸1,2,3,4,5,678,9,10,11,12;voidmain()unsignedcharsec,min,hour,a,b,c,d,e,f,g,h,l,m,n,o,p,q,num;TMOD=0x01;EA=1;ET0=1;TR0=1;TH0=15536/256;TL0=15536%256;while(1)if(i=20)i=0;sec+;if(sec=60)sec=0;min+;if(min=60)min=0;hour+;if(hour=24)hour=0;day+;if(day=31)day=1;month+;if(month=13)month=1

4、;year+;write_com(0x0c);write_com(0x38);write_com(0x06);g=day/10;h=day%10;l=month/10;m=month%10;n=year/1000;o=year/100%10;p=year/10%10;q=year%10;e=hour/10;f=hour%10;a=min/10;b=min%10;c=sec/10;d=sec%10;write_com(0x80+5);write_dat(0x30+n);write_dat(0x30+o);write_dat(0x30+p);write_dat(0x30+q);write_dat(

5、0x2d);write_dat(0x30+l);write_dat(0x30+m);write_dat(0x2d);write_dat(0x30+g);write_dat(0x30+h);write_com(0xc0+7);write_dat(0x30+e);write_dat(0x30+f);write_dat(0x3a);write_dat(0x30+a);write_dat(0x30+b);write_dat(0x3a);write_dat(0x30+c);write_dat(0x30+d);if(key0=0)delayms(10);if(key0=0)while(key0=0);TR

6、0=0;num+;if(num=7)num=0;TR0=1;if(key1=0)delayms(10);if(key1=0)while(key1=0);if(num=1)sec-;if(sec=-1)sec=59;if(num=2)min-;if(min=-1)min=59;if(num=3)hour-;if(hour=-1)hour=23;if(num=4)day-;if(day=-1)day=30;if(num=5)month-;if(month=-1)month=12;if(num=6)year-;精品文档)if(key2=0)(delayms(10);if(key2=0)(while(

7、key2=0);if(num=1)(sec+;if(sec=60)sec=0;)if(num=2)(min+;if(min=60)min=0;)if(num=3)(hour+;if(hour=24)hour=0;)if(num=4)(day+;if(day=31)day=1;)if(num=5)(month+;if(month=13)month=1;)if(num=6)(year+;if(TR0=0&&num=1)write_com(0xc0+13);write_com(0x0f);if(TR0=0&&num=2)write_com(0xc0+10);write

8、_com(0x0f);if(TR0=0&&num=3)write_com(0xc0+7);write_com(0x0f);if(TR0=0&&num=4)write_com(0x80+13);write_com(0x0f);if(TR0=0&&num=5)write_com(0x80+10);write_com(0x0f);if(TR0=0&&num=6)write_com(0x80+8);write_com(0x0f);voidwrite_com(unsignedcharcom)rs=0;rw=0;P0=com;en=1;delayms(5);en=0;voidwrite_dat(unsignedchardat)rs=1;rw=0;P0=dat;en=1;delayms(5);en=0;voi