51单片机数码管显示时钟程序精编资料

1、51单片机数码管显示时钟程序#in clude<reg52 h>“#i nclude#i nclude<i ntri ns. h>#defi ne uchar un sig ned char#defi ne uint un sig ned int sbit dula=P2A6;sbit wela=P2A7;sbit key 仁卩 3 八 4;sbit key2=P3A5;sbit key3=P3A6;sbit beep=P2A3;un sig ned code table = 0x3f , 0x06, 0x5b , 0x4f , 0x66,0x6d , 0x7d , 0

2、x07 , 0x7f , 0x6f , 0x77,0x7c, 0x39,0x5e , 0x79,0x71uchar nu ml, nu m2, s, si, m, ml, f, fl, num, numf, nu ms, d in gshi ;uchar ns, n si, nf, nf 1, numns, numnf;void delay( uint z);void keysca n ();void keysca nl ();void alramO ;void display (uchar m, uchar ml, uchar f, ucharf1, uchars, ucharsl);voi

3、d displayO(uchar n f, uchar n fl, uchar n s,uchar n si);void mai n()TMOD=Ox01; 设定定时器0工作方式1TH0=(65536-46080)/256 ;TLO= (65536-46080)%256 ;EA=1; 开总中断ETO二1;/开定时器0中断TRO二1;/启动定时器0中断 numn s=12;numnf=0;while (1)if (di ngshi=0) keysca n ();display (m, ml, f, fl, s, si) ; alram(); else keysca nl (); displayO

4、 ( nf, n fl, ns, nsl);void keysca n ()if(keyl=O) delay(10);if (key 1=0) nu ms+;if (nu ms=24)nu ms=0;while(!keyl) ; display (m, ml, f, fl, s, si);if(key2=0) delay(10);辻(key2=0) num f+;if (n umf=60) numf=0;while(!key2);display (m, ml, f, fl, s,si)；if(key3=0) delay(10); if (key3=0) din gshi=d in gshi;

5、while (!key3) display(m, ml, f, fl, s, si);/* if(key4=0)delay(10);if(key4=0)flag=l;while (!key4) ; display(m, ml, f, fl, s, si); */void keysca nl()if(key l=0)delay(10);if(keyl=0)numn s+;if (numn s=24) numn s=0; while(!keyl);/display (nf, nf 1, ns, n si);if(key2=0)delay(10);if(key2=0)numn f+;if (numn

6、 f=60) numnf=0; while(!key2);/display (nf, nf 1, ns, n si);if(key3二=0)delay(10);if (key3=0)din gshi=0; while(!key3);/ display (m, ml, f, fl, s, si);void al ram ()if(numnf=numf)&&(numns=nu ms)一分钟报时提示beep二0;if (numnf+1numf)&&(numnsnums) )&&(dingshi0) ,fbeep=l;void displayO(ucha

7、r n f, uchar n fl, uchar n s, uchar n si) 闹纟中显不函数 nf=n um nf%10; nfl=n um nf/10; ns=numn s%10; n sl= numn s/10;/* wela=l;PO二OxcO; 送位选数据wela=0;PO=Oxff;*/ dula=l;Portable nsl;dula=0;PO二Oxff;wela=l;PO=Oxfe; wela=0;delay (1);dula=l;Portable ns 0x80; dula=0;PO二Oxff;wela=l;PO二Oxfd;wela=0;delay (1);dula=l;

8、Portable nfl; dula=O;PO二Oxff;wela=l;PO二Oxfb;wela=0;delay (1);dula=l;Portable nf; dula=0;PO二Oxff;wela=l;PO二Oxf7;wela=0;时间显示delay (1);void display (uchar m, uchar ml, uchar f, ucharf1, uchars, ucharsl)dula=l;Portable ml; 秒位第 1 位dula二0; PO二Oxff; wela=l;POOxef;wela=0;delay (1);dula=l;Portable m;/ 秒位第 2

9、位dula=0;PO二Oxff;wela=l;PO二Oxdf;wela=0;delay (1);dula=l;Portable si ; / 时位第一位dula=0;PO二Oxff;wela=l;PO=Oxfe;wela=0;delay (1);dula=l;PO=tables 0x80;dula=0;PO二Oxff;wela=l;PO二Oxfd;wela=0;delay (1);dula=l;Portable fl;/ 分位第一位dula=0;PO二Oxff;wela=l;PO二Oxfb;wela=0;delay (1);dula=l;P0二tablef|0x80;dula=0;PO二Oxff;wela=l;PO二Oxf7; wela=0; delay (1);void TO_timer() in terrupt 1-THO=(65536-46080)/256 ; TLO=(65536-46080)%256 ; nu m2+;辻(n um2=20)nu m+; nu m2=0;m=nu m%10; m 仁n um/10;f=n umf%10; f 仁nu mf/10;s=nu ms%10; s