基于定时器的51单片机时钟程序.docx

1、基于定时器的51单片机时钟程序基于定时器的 51 单片机时钟程序51 单片机时钟程序，基于定时器写出，同时还有定时、日历、键盘调节功能#in elude #in cludev intrin s.h sbit dula=P2A6;sbit wela=P2A7;sbit key1=P3A4;sbit key2=P3A5;sbit luis=P3A6;sbit key4=P3A7;#define uint unsigned int #define uchar unsigned charuchar code table= 0x3f,0x06,0x5b,0x4f, 0x66,0x6d,0x7d,0x07

2、,0x7f,0x6f,0x77,0x7c, 0x39,0x5e,0x79,0x71; uchar code table2= 0xbf,0x86,0xdb,0xcf, 0xe6,0xed,0xfd,0x87, 0xff,0xef;uchar a,b,d,shis,ges,shif,gef,shim,gem,shi, fen,miao,shiy,gey,shir, ger,yue,ri;void display1(uchar,uchar, uchar,uchar,uchar,uchar); voiddisplay2(uchar,uchar, uchar,uchar);void init();voi

3、d keyscan1();void keyscan2();void delay(uint z)uint x,y;for(x=z;x0;x-)for(y=110;y0;y-); void main()init();a=0;miao=0;shi=0;fen=0;yue=1;ri=1;while(1)if(luis=1)display1(shis,ges,shif,gef,shim,gem);keyscan1();elsedisplay2(shiy,gey,shir,ger);keyscan2();void init()d=0xaa;P1=d;TMOD=0x11;TH0=(65536-45872)/

4、256;TL0=(65536-45872)%256;TH1=(65536-45872)/256;TL1=(65536-45872)%256;EA=1;ET0=1;ET1=1;TR0=1;TR1=1;void display1(uchar shis,uchar ges,uchar shif, uchar gef,uchar shim,uchar gem)dula=1;P0=tableshis;dula=0;P0=0xff;wela=1;P0=0xfe;wela=0;delay(1);dula=1; P0=table2ges;dula=0;P0=0xff;wela=1;P0=0xfd;wela=0

5、;delay(1);dula=1;P0=tableshif; dula=0;P0=0xff;wela=1;P0=0xfb; wela=0;delay(1);dula=1;P0=table2gef; dula=0;P0=0xff;wela=1;P0=0xf7;wela=0;delay(1);dula=1;P0=tableshim;dula=0;P0=0xff;wela=1;P0=0xef;wela=0;delay(1);dula=1;P0=tablegem;dula=0;P0=0xff;wela=1;P0=0xdf;wela=0;delay(1);void r0() interrupt 1 TH

6、0=(65536-45872)/256;TL0=(65536-45872)%256; a+;if(a=20)a=0; miao+;if(miao=60) miao=0; fen+;if(fen=60)fen=0;shi+;if(shi=24)shi=0;if(yue=1)ri+;if(ri=32)ri=0;yue=yue+1;if(yue=2) ri+;if(ri=29)ri=0; yue=yue+1; if(yue=3) ri+;if(ri=32)ri=0; yue=yue+1;if(yue=4) ri+;if(ri=31)ri=0;yue=yue+1;if(yue=5)ri+;if(ri=

7、32)ri=0; yue=yue+1;if(yue=6)ri+;if(ri=31)ri=0; yue=yue+1;if(yue=7)ri+;if(ri=31)ri=0; yue=yue+1;if(yue=8)ri+;if(ri=32)ri=0; yue=yue+1;if(yue=9)ri+;if(ri=31)ri=0;yue=yue+1;if(yue=10) ri+; if(ri=32)ri=0; yue=yue+1;if(yue=11) ri+;if(ri=31)ri=0; yue=yue+1; if(yue=12)ri+;if(ri=32)ri=0;yue=1;shiy=yue/10;ge

8、y=yue%10;shir=ri/10;ger=ri%10;shis=shi/10;ges=shi%10;shim=miao/10;gem=miao%10; shif=fen/10;gef=fen%10;void r1() interrupt 3 TH1=(65536-45872)/256;TL1=(65536-45872)%256;b+;if(b=20)b=0;d=_crol_(d,1);P1=d;void keyscan1()if(key1=0)delay(5); if(key1=0);shi+; if(shi=24) shi=0;while(!key1);if(key2=0)delay(

9、5); if(key2=0);fen+; if(fen=60) fen=0;while(!key2); if(key4=0) delay(5);if(key4=0);delay(5); while(!key4);TR0=TR0;void display2(uchar shiy,uchar gey, uchar shir,uchar ger)dula=1;P0=tableshiy; dula=0; P0=0xff; wela=1; P0=0xfe; wela=0; delay(1); dula=1;P0=table2gey; dula=0; P0=0xff; wela=1; P0=0xfd; w

10、ela=0; delay(1); dula=1;P0=tableshir; dula=0; P0=0xff; wela=1; P0=0xfb; wela=0;dula=1;P0=table2ger;dula=0;P0=0xff;wela=1;P0=0xf7;wela=0;delay(1);void keyscan2() if(key1=0)delay(5);if(key1=0);yue+;if(yue=13)yue=1;while(!key1);if(key2=0)if(key2=0); delay(5);if(key2=0); if(yue=1) ri+; if(ri=32) ri=1; i

11、f(yue=2) ri+; if(ri=29) ri=1; if(yue=3)if(ri=32)ri=1;if(yue=4)ri+;if(ri=31)ri=1;if(yue=5)ri+; if(ri=32)ri=1;if(ri=31)ri=1;if(yue=7)ri+;if(ri=31)ri=1;if(yue=8)ri+; if(ri=32)ri=1;if(ri=31)ri=1;if(yue=10)ri+; if(ri=32)ri=1;if(yue=11)ri+; if(ri=31)ri=1;if(ri=32)ri=1; while(!key2);while(!key2);while(!key2);