電路圖及仿真文件下載：http://www.51hei.com/bbs/dpj-20404-1.html

下面是程序源碼：

#include #define uchar unsigned char

#define uint unsigned int

sbit db=P2^7;

char i,sec,min,h,date,month,year,flag;

uchar j,k,m,n,o,p;

sbit dula=P2^0;

sbit wela1=P2^1;

sbit wela2=P2^2;

sbit key_ch=P3^5;

sbit key_add=P3^6;

sbit key_minus=P3^7;

uchar code table[]={

0x3f,0x06,0x5b,0x4f,

0x66,0x6d,0x7d,0x07,

0x7f,0x6f,0x77,0x7c,

0x39,0x5e,0x79,0x71};

void init();

void delay(uint);

void second_display();

void minute_display();

void hour_display();

void date_display();

void month_display();

void year_display();

void control();

void time();

void main()

{

init();

while(1)

{

second_display();

minute_display();

hour_display();

date_display();

month_display();

year_display();

control();

}

}

void init()

{

db=0;

i=0;

sec=0;

min=0;

h=0;

date=1;

month=1;

year=1;

flag=0;

wela1=0;

wela2=0;

EA=1;

ET0=1;

TMOD=0x01;

TH0=(65536-50000)/256;

TL0=(65536-50000)%256;

TR0=1;

}

void delay(uint z)

{

uint x,y;

for(x=z;x>0;x--)

for(y=110;y>0;y--);

}

void second_display()

{

int sec_shi,sec_ge;

sec_shi=sec/10;

sec_ge=sec%10;本文引用地址：http://www.eepw.com.cn/article/201611/323804.htm

if(flag==1&&j!=1)

j++;

else

{

j=0;

dula=1;

P0=~table[sec_ge];

dula=0;

wela1=1;

P1=0x00;

wela1=0;

wela2=1;

P1=0x20;

wela2=0;

delay(1);

dula=1;

P0=0xff;

dula=0;

dula=1;

P0=~table[sec_shi];

dula=0;

wela1=1;

P1=0x00;

wela1=0;

wela2=1;

P1=0x10;

wela2=0;

delay(1);

dula=1;

P0=0xff;

dula=0;

}

}

void minute_display()

{

int min_shi,min_ge;

min_shi=min/10;

min_ge=min%10;

if(flag==2&&k!=1)

k++;

else

{

k=0;

dula=1;

P0=~table[min_ge];

dula=0;

wela1=1;

P1=0x00;

wela1=0;

wela2=1;

P1=0x08;

wela2=0;

delay(1);

dula=1;

P0=0xff;

dula=0;

dula=1;

P0=~table[min_shi];

dula=0;

wela1=1;

P1=0x00;

wela1=0;

wela2=1;

P1=0x04;

wela2=0;

delay(1);

dula=1;

P0=0xff;

dula=0;

}

}

void hour_display()

{

int h_shi,h_ge;

h_shi=h/10;

h_ge=h%10;

if(flag==3&&m!=1)

m++;

else

{

m=0;

dula=1;

P0=~table[h_ge];

dula=0;

wela1=1;

P1=0x00;

wela1=0;

wela2=1;

P1=0x02;

wela2=0;

delay(1);

dula=1;

P0=0xff;

dula=0;

delay(1);

dula=1;

P0=~table[h_shi];

dula=0;

wela1=1;

P1=0x00;

wela1=1;

P1=0x00;

wela1=0;

wela2=1;

P1=0x01;

wela2=0;

delay(1);

dula=1;

P0=0xff;

dula=0;

wela2=0;

delay(1);

}

}

void date_display()

{

int date_shi,date_ge;

date_shi=date/10;

date_ge=date%10;

if(flag==4&&n!=1)

n++;

else

{

n=0;

dula=1;

P0=~table[date_ge];

dula=0;

wela2=1;

P1=0x00;

wela2=0;

wela1=1;

P1=0x80;

wela1=0;

delay(1);

dula=1;

P0=0xff;

dula=0;

dula=1;

P0=~table[date_shi];

dula=0;

wela2=1;

P1=0x00;

wela2=0;

wela1=1;

P1=0x40;

wela1=0;

delay(1);

dula=1;

P0=0xff;

dula=0;

}

}

void month_display()

{

int month_shi,month_ge;

month_shi=month/10;

month_ge=month%10;

if(flag==5&&o!=1)

o++;

else

{

o=0;

dula=1;

P0=~table[month_ge];

dula=0;

wela2=1;

P1=0x00;

wela2=0;

wela1=1;

P1=0x20;

wela1=0;

delay(1);

dula=1;

P0=0xff;

dula=0;

dula=1;

P0=~table[month_shi];

dula=0;

wela2=1;

P1=0x00;

wela2=0;

wela1=1;

P1=0x10;

wela1=0;

delay(1);

dula=1;

P0=0xff;

dula=0;

}

}

總結

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