单片机数码管显示时钟程序

1、ttincludeO /#include#includeftdefine uchar unsigned charftdefine uint unsigned intsbit dula二P2"6;sbit wela二P2"7;sbit keyl=P3"4;sbit key2二P3"5;sbit key3=P3*6;sbit beep二P2"3;unsigned code table=0x3f , 0x06 , 0x5b , 0x4f ,0x66 , 0x6d , 0x7d , 0x07 ,0x7f , 0x6f , 0x77 , 0x7c,0x3

2、9 , 0x5e , 0x79 , 0x71;uchar numl, num2, s, si, m, ml, f, fl, num, numf, nums, dingshi;uchar ns, nsl, nf, nf 1, numns, numnf;void delay(uint z);void keyscan ();void keyscanl ();void alram(); void display(uchar m, uchar ml, uchar f, ucharf1, uchars, ucharsl); void displayO(uchar nf, uchar nf1, uchar

3、ns, uchar nsl);void main()TMOD二0x01;/设定定时器0工作方式1THO=(65536-46080)/256 ;TLO=(65536-46080)%256 ;EA二1;/开总中断ETO=1;/开定时器0中断TRO二1;/启动定时器0中断numns=12;numnf=0;while (1)if(dingshi=0)keyscan ();display (m, ml, f, fl, s, si);alram();elsekeyscanl ();displayO (nf, nf 1, ns, nsl);void keyscan ()if (keyl=0)delay(10

4、);if(keyl=0)nums+;if (nums=:=24)nums二0;while (!keyl);display (m, ml, f, fl, s, si);if(key2=0)delay(10);if (key2=0)numf+;if (numf=60)numf=O;while (!key2);display(m, ml, f, fl, s, si);if(key3=0)delay (10);if(key3=0)dingshi二'dingshi;while(!key3)display(m, ml, f, fl, s, si);/* if(key4=0)delay (10);i

5、f(key4=0)flag二1;while(!key4);display (m, ml, f, fl, s, si);*/void keyscanl()if(keyl=0)delay 仃0);if(keyl=0)numns+;if (numns=24)numns=0;while (!keyl);/ display (nf, nf 1, ns, nsl);if (key2=0)delay (10);if(key2=0)numnf+;if (numnf60)numnf=0;while(!key2);/ display (nf, nf 1, ns, nsl);if(key3=0)delay 仃0);

6、if(key3=0)dingshiO;wh订e(!key3);display (m, ml, f, fl, s, si);void alramOif(numnf=numf)&&(numns二二nums)beep二0;if (numnf+l=:numf) && (numnsnums) && (dingshiO) / 一分钟报时提示beep=l;void displayO (uchar nf, uchar nf 1, uchar ns, uchar nsl)/闹钟显 示函数nf=numnf%10;nfl=numnf/10;ns=:numns%10;n

7、sl 二 numns./10;/* wela=l;P0=0xc0; /送位选数据wela=0;P0二Oxff;*/dula=l;PO二tablensl;dula=0;PO二Oxff;wela=l;PO二Oxfe;wela=0;delay (1);dula=l;PO二tablens 0x80;dula=0;PO=Oxff;wela=l;PO二Oxfd;wela=0;delay (1)；dula=l;P0=table Lnf1;dula=0;PO二Oxff;PO=Oxfb;wela=O;delay (1);dula=l;PO=tablenf;dula=O;PO=Oxff;wela=l;P0=0xf

8、7;wela=O;delay (1);void display(uchar m, uchar ml, uchar f, ucharfl, uchars, ucharsl) /时间显示dula=l;PO二table ml ;/秒位第 1 位dula=0;P0=0xff;wela=l;/秒位第2位/时位第一位PO=Oxef; wela=O; delay (1);dula=l;Portable Im; dula=0;PO二Oxff; wela=l;PO二Oxdf; wela=0;delay (1);dula=l;P0=tablesi; dula=0;PO=Oxff; wela=l;PO二Oxfe;

9、wela=0;delay (1);Portable s 0x80;dula=l;dula=O;PO二Oxff;wela=l;PO二Oxfd;wela=0;delay(1)；dula=l;P0=table fl :/分位第一位dula=0;PO=Oxff;wela=l;PO=Oxfb;we la二0;delay (1);dula=l;PO二tablef 0x80;dula=0;PO=Oxff;wela=l;P0=0xf7;wela二0;delay (1);void T0_timer() interrupt 1TH0=(65536-46080)/256 ;TL0=(65536-46080)%256 ; num2+;if (num2=20)num+;num2=0;m=:num%10;ml二num/10;f=numf%10;f1二numf/10;s=nums%10;si