51单片机设计数码管显示时钟的程序怎么写

#include<reg51.h>

#define uchar unsigned char

uchar code ledtab[]={0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,0x07,0x7f,0x6f,0x40}//0-9

unsigned char sec=0,min=0,hour=12,scanled

unsigned char key,flashbit,mode,time 

unsigned char disdat[8]

sbit led=P1^0

void delay(unsigned int x)

{

unsigned int i,j

for(i=0i<xi++)

for(j=0j<120j++)

}

void dischg()

{

disdat[0]=sec%10

disdat[1]=sec/10

disdat[2]=10

disdat[3]=min%10

disdat[4]=min/10

disdat[5]=10

disdat[6]=hour%10

disdat[7]=hour/10

}

void flash()

{

switch(flashbit)

{

case 0:break

case 1:

disdat[6]=0x10

disdat[7]=0x10

delay(50)

dischg()

delay(80)

break

case 2:

disdat[3]=0x10

disdat[4]=0x10

delay(50)

dischg()

delay(80)

break

case 3:

disdat[0]=0x10

disdat[1]=0x10

delay(50)

dischg()

delay(80)

break

default:break

}

}

void t0isr() interrupt 1 //秒计时

{

TH0=0x3c

TL0=0xb0

time++

switch(mode)

{

case 0:

if(time==20)

{

time=0

sec++

if(sec>59)

{

sec=0

min++

if(min>59)

{

min=0

hour++

if(hour>23)hour=0

}

}

}

break

case 1:

if(time==20)

{

time=0

if(sec>0)sec--

else if(min>0){sec=59min--}

else if(hour>0){sec=59min=59hour--}

else {hour=0min=0sec=0}

}

break

}

dischg()

}

void t1isr() interrupt 3 //显示

{

TH1=0xec

TL1=0x78

switch(scanled)

{

case 0:

P2=0x01

P0=~ledtab[disdat[7]]

break

case 1:

P2=0x02

P0=~ledtab[disdat[6]]

break

case 2:

P2=0x04

P0=~ledtab[disdat[5]]

break

case 3:

P2=0x08

P0=~ledtab[disdat[4]]

break

case 4:

P2=0x10

P0=~ledtab[disdat[3]]

break

case 5:

P2=0x20

P0=~ledtab[disdat[2]]

break

case 6:

P2=0x40

P0=~ledtab[disdat[1]]

break

case 7:

P2=0x80

P0=~ledtab[disdat[0]]

break

default:break

}

scanled++

scanled%=8

}

main()

{

TMOD=0x11

TH0=0x3c

TL0=0xb0

TH1=0xec

TL1=0x78

TR1=1

TR0=1

ET0=1

ET1=1

EA=1

sec=55

min=59

hour=23

flashbit=0

scanled=0

time=0

mode=0

dischg()

while(1)

{

flash()//闪烁

if((P3&0x0f)!=0x0f){

key=P3&0x0f

while((P3&0x0f)!=0x0f)

led=0

delay(10)

key|=0xf0

switch(~key)

{

case 0x01: //p3.1选择调时、分、秒

TR0=0

flashbit+=1

if(flashbit>3){flashbit=0TR0=1}

break

case 0x02: //p3.2调数

if(flashbit==0)break

if(flashbit==1)

{

hour++

if(hour>99)hour=0

}

if(flashbit==2)

{

min++

if(min>59)min=0

}

if(flashbit==3)

{

sec++

if(sec>59)sec=0

}

break

case 0x04:  //选择正/倒

TR0=0

mode++

mode&=0x01

if(mode==0){sec=0min=0hour=0}

dischg()

break

case 0x08: //启动/暂停

TR0=~TR0

break

default:break

}

}

}

}

/*实验名称：定时中断0

功能：利用定时器,产生秒计数器,使数码管显示时间和年月日，还有跑表。

05-02-01

*/

#include <reg51.h>

//LCD的口线

sbit E=P3^5

sbit RW=P3^6

sbit RS=P3^7

//8字LED的连接方法

//P0.7,P0.6,P0.5,P0.4,P0.3,P0.2,P0.1,P0.0

//G, F A E B H C D

sbit l1=P2^7

sbit l2=P2^6

sbit l3=P2^5

sbit l4=P2^4

sbit l5=P2^3

sbit l6=P2^2

sbit l7=P2^1

sbit l8=P2^0

sbit j1=P1^1

sbit j2=P1^2

unsigned char code ledcode[]={0x84,0xf5,0x46,0x54,0x35,0x1c,0x0c,0xd5,

0x04,0x14,0x05,0x2c,0x8e,0x64,0x0e,0x0f}//数码管段码表

unsigned char ms,s,min,hour,t0100ms,t0101ms,t0sm,s0,s1,mi0,mi1,h0,h1,dsm,dsh,dsm0,dsm1,dsh0,dsh1

unsigned int year,mouch,date,y3,y2,y1,y0,m1,m0,d1,d0,leap,bz,bz1,bz0,pb0,pb1,pb2,pb00,pb10,pb20,pb,cs

void time0(void)

void delay()

void main(void)

{

E=0 //取消LCD对LED的影响

RW=0

RS=1

year=2009, mouch=10, date=18,leap=0

y3=0, y2=0, y1=0, y0=0

m1=0, m0=0, d1=0, d0=0

bz=0,bz1=0,bz0=0

pb0=0,pb1=0,pb2=0,cs=1

ms=0,min=30,hour=12,s=50

s0=0x00,s1=0x00

mi0=0,mi1=0,h0=0,h1=0

t0100ms=0x14

t0101ms=0x14

t0sm=0x01 //从第一个LED开始显示

TH0=0xee

TL0=0x00

TMOD=0x01

TR0=1

IE=0x82

while(1)

{ if((year%4==0&&year%100!=0)||(year%400==0)) //判断是平年还是闰年

{leap=1}

else

{leap=2}

do

{

if(j1==0){delay(), bz++}

if(bz==8){bz=0}

switch(bz)

{ case 0:{ bz1=0} break

case 1:{ bz1=0if(j2==0){delay(), min++}} break

case 2:{ bz1=0if(j2==0){delay(), hour++}} break

case 3:{ bz1=1if(j2==0){delay(), date++}} break

case 4:{ bz1=1if(j2==0){delay(),mouch++}} break

case 5:{ bz1=1if(j2==0){delay(), year++}} break

case 6:{ bz1=2if(j2==0){delay(), dsm++}} break

case 7:{ bz1=2if(j2==0){delay(), dsh++}} break

default:break}

}

while(bz)

do

{

if(j2==0) {delay(),bz0++}

if(bz0==5){bz0=0}

switch(bz0)

{ case 0:{ bz1=0} break

case 1:{ bz1=1if(j1==0){delay(),bz0=0}} break

case 2:{ bz1=3,pb=0,pb0=0,pb1=0,pb2=0} break

case 3:{ bz1=3if(j1==0){cs=2,pb00=pb0,pb10=pb1,pb20=pb2}} break

case 4:{ bz1=3if(j1==0){pb=1}} break

// case 2:{ bz1=0if(j2==0){delay(), hour++}} break

// case 3:{ bz1=1if(j2==0){delay(), date++}} break

// case 4:{ bz1=1if(j2==0){delay(),mouch++}} break

// case 5:{ bz1=1if(j2==0){delay(), year++}} break

default:break}

}

while(bz0)

}

}

////////////////////////////////////

void delay()

{

unsigned int i,j,k

for( i=10i>0i--)

for( j=20j>0j--)

for(k=100k>0k--)

}

///////////////////////////////////////

void time0(void) interrupt 1

{

TH0=0xee,TL0=0x00

t0100ms--

if(t0100ms==0x00){ t0100ms=20,ms++

if(ms==10) { ms=0,s++

if(s==60){ s=0,min++,m0=6

if(min==60) { min=0,hour++

if(hour==24) { hour=0,date++

//*******************************************************************************

switch(mouch)

{ case 1:{if(date==32){date=0,mouch++}}break

case 2:{if(leap==1&&date==30){date=0,mouch++}else{if(leap==2&&date==29){date=0,mouch++}}}break

case 3:{if(date==32){date=0,mouch++}}break

case 4:{if(date==31){date=0,mouch++}}break

case 5:{if(date==32){date=0,mouch++}}break

case 6:{if(date==31){date=0,mouch++}}break

case 7:{if(date==32){date=0,mouch++}}break

case 8:{if(date==32){date=0,mouch++}}break

case 9:{if(date==31){date=0,mouch++}}break

case 10:{if(date==32){date=0,mouch++}}break

case 11:{if(date==31){date=0,mouch++}}break

case 12:{if(date==32){date=0,mouch++}}break

case 13:{mouch=1,year++}break

default: break }

}

}

}

}

}

if(min==60) {min=0}

if(hour==24){hour=0}

if((mouch==1||mouch==3||mouch==5||mouch==7||mouch==8||mouch==10||mouch==12)&&date==32){date=0}

if((mouch==4||mouch==6||mouch==9||mouch==11)&&date==31){date=0}

if(mouch==2&&leap==1&&date==30){date=0}

if(mouch==2&&leap==2&&date==29){date=0}

if(mouch==13){mouch=1}

s0=s%10,s1=s/10%10

mi0=min%10,mi1=min/10%10

h0=hour%10,h1=hour/10%10

d0=date%10,d1=date/10%10

m0=mouch%10,m1=mouch/10%10

y0=year%10,y1=year/10%10,y2=year/100%10,y3=year/1000

dsm0=dsm%10,dsm1=dsm/10%10

dsh0=dsh%10,dsh1=dsh/10%10

if(dsm==60){dsm=0}

if(dsh==24){dsh=0}

//**********************************************************************

if(bz0==4)

{}

else

if(bz0==3)

{ TH0=0xee,TL0=0x00

t0101ms--

if(t0101ms==0x00){ t0101ms=20,pb0++

if( pb0==10) {pb0=0,pb1++

if(pb1==10) {pb1=0,pb2++

if(pb2==10) {pb2=0}

}

}

}

}

/////////////////////////////////////////////////////////////////////////

t0sm++

if(t0sm==9){t0sm=1}

P0=0xff

if(bz1==0)

{switch(t0sm)

{ case 1:{P2=0xff,l1=0P0=ledcode[ms]} break

case 2:{P2=0xff,l2=0P0=ledcode[s0]&0xfb} break

case 3:{P2=0xff,l3=0P0=ledcode[s1]} break

case 4:{P2=0xff,l4=0P0=ledcode[mi0]&0xfb}break

case 5:{if(bz==1){P2=0xff,l5=0P0=ledcode[mi1]&0xfb}else{P2=0xff,l5=0P0=ledcode[mi1]}}break

case 6:{P2=0xff,l6=0P0=ledcode[h0]&0xfb} break

case 7:{if(bz==2){P2=0xff,l7=0P0=ledcode[h1]&0xfb}else{P2=0xff,l7=0P0=ledcode[h1]}}break

case 8:{P2=0xff,l8=0P0=ledcode[bz]&0xfb} break

default:break}

}

if(bz1==1)

{switch(t0sm)

{ case 1:{if(bz==3){P2=0xff,l1=0P0=ledcode[d0]&0xfb}else{P2=0xff,l1=0P0=ledcode[d0]}} break

case 2:{if(bz==3){P2=0xff,l2=0P0=ledcode[d1]&0xfb}else{P2=0xff,l2=0P0=ledcode[d1]}} break

case 3:{P2=0xff,l3=0P0=ledcode[m0]&0xfb} break

case 4:{if(bz==4){P2=0xff,l4=0P0=ledcode[m1]&0xfb}else{P2=0xff,l4=0P0=ledcode[m1]}} break

case 5:{P2=0xff,l5=0P0=ledcode[y0]&0xfb} break

case 6:{if(bz==5){P2=0xff,l6=0P0=ledcode[y1]&0xfb}else{P2=0xff,l6=0P0=ledcode[y1]}} break

case 7:{if(bz==5){P2=0xff,l7=0P0=ledcode[y2]&0xfb}else{P2=0xff,l7=0P0=ledcode[y2]}} break

case 8:{if(bz==5){P2=0xff,l8=0P0=ledcode[y3]&0xfb}else{P2=0xff,l8=0P0=ledcode[y3]}} break

default:break}

}

if(bz1==2)

{switch(t0sm)

{ case 1:{P2=0xff} break

case 2:{P2=0xff} break

case 3:{P2=0xff} break

case 4:{if(bz!=6){P2=0xff,l4=0P0=ledcode[dsm0]}else{P2=0xff,l4=0P0=ledcode[dsm0]&0xfb}}break

case 5:{if(bz!=6){P2=0xff,l5=0P0=ledcode[dsm1]}else{P2=0xff,l5=0P0=ledcode[dsm1]&0xfb}}break

case 6:{P2=0xff,l6=0P0=ledcode[dsh0]&0xfb} break

case 7:{if(bz!=7){P2=0xff,l7=0P0=ledcode[dsh1]}else{P2=0xff,l7=0P0=ledcode[dsh1]&0xfb}}break

case 8:{P2=0xff} break

default:break}

}

if(bz1==3)

{switch(t0sm)

{ case 1:{if(pb==1){P2=0xff,l1=0P0=ledcode[pb00]}else{P2=0xff,l1=0P0=ledcode[pb0]}}break

case 2:{if(pb==1){P2=0xff,l2=0P0=ledcode[pb10]&0xfb}else{P2=0xff,l2=0P0=ledcode[pb1]&0xfb}} break

case 3:{if(pb==1){P2=0xff,l3=0P0=ledcode[pb2]}else{P2=0xff,l3=0P0=ledcode[pb2]}} break

case 4:{P2=0xff}break

case 5:{P2=0xff,l5=0P0=ledcode[cs]}break

case 6:{P2=0xff}break

case 7:{P2=0xff}break

case 8:{P2=0xff}break

default:break}

}

}

---