数字时钟C程序及仿真

数字时钟C程序及仿

真

-CAL-FENGHAI-(2020YEAR-YICAI)_JINGBIAN

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

#include <>

unsigned char code SEG7[12]={

0xC0,0xF9,0xA4,0xB0,0x99,0x92,

0x82,0xF8,0x80,0x90,0xbf,0xff,};

unsigned short int tcount;

//sbit set=P1^0;

//sbit up=P1^1;

//sbit down=P1^2;

unsigned char

DisSecondL,DisSecondH,DisMinutL,DisMinutH,DisHourL,DisHourH;

//结构体变量

struct time

{

unsigned char second;

unsigned char minute;

unsigned char hour;

}time1;

//延时子程序

void delay(k)

unsigned int k;

{

unsigned char j;

while((k--)!=0)

for(j=0;j<125;j++);

}

//时钟调整子程序

TimeUpDown(n,x,y)

unsigned char n,x,y;

{

if(up==0)

{

delay(50); //消除抖动

if(up==0)

{

n++;

if(n==x)//上限越界显示为0

n=0;

while(up==0);

}

}

if(down==0)

{

delay(50);

if(down==0)

{

if(n==0)//下限越界显示为最大可显示

n=y;

else

n--;

while(down==0);

}

}

return n;//返回调整后的值

} */

//显示子程序

void display(DisSecondL,DisSecondH,DisMinutL,DisMinutH,DisHourL,DisHourH) {

// 日日日日日日

// 1 2 3 4 5 6

// hH hL mH mL sH sL

// 01 02 04 08 10 20

P2=0x00;

P0=SEG7[DisSecondL]; //显示秒钟的个位

P2=0x20;

delay(3);

P2=0x00;

P0=SEG7[DisSecondH]; //显示秒钟的十位

P2=0x10;

delay(3);

P2=0x00;

P0=SEG7[DisMinutL]; //显示分钟的个位

P2=0x08;

delay(3);

P2=0x00;

P0=SEG7[DisMinutH]; //显示分钟的十位

P2=0x04;

delay(3);

P2=0x00;

P0=SEG7[DisHourL]; //显示小时的个位

P2=0x02;

delay(3);

P2=0x00;

if(DisHourH==0)

{;}

else

{

P0=SEG7[DisHourH]; //显示小时的十位

P2=0x01;

delay(3);

}

}

void main()

{

//unsigned char Flag;

=40;

=03;

=05;

TMOD=0x01;

TH0=(65536-50000)/256;

TL0=(65536-50000)%256;

EA=1;

ET0=1;

TR0=1;

while(1)

{

display(DisSecondL,DisSecondH,DisMinutL,DisMinutH,DisHourL,DisHourH);

if(set == 0) //设置标志位 Flag

{

delay(50);

if(set == 0)

{

TR0 = 0;

Flag++;

if(Flag > 3) //0:显示时间,1:小时调整，2:分钟调整，3:秒调整

Flag = 0;

}

while(set == 0);

}

switch(Flag)

{

case 0:

TR0=1;

display%10,10,%10,10,%10,10);

break;

case 1: //时钟小时调整

TR0=0;

=TimeUpDown,24,23);

display(10,10,10,10,%10,10);

break;

case 2: //时钟分钟调整

=TimeUpDown,60,59);

display(10,10,%10,10,10,10);

break;

case 3: //时钟秒调整

=TimeUpDown,60,59);

display%10,10,10,10,10,10);

break;

//default:

// break;

}

}

}

void t0(void) interrupt 1

{

TH0=(65536-50000)/256; TL0=(65536-50000)%256; tcount++;

if(tcount==20)

{

tcount=0;

++;

}

if >=60)

{

=0;

++;

}

if >=60)

{

=0;

++;

}

if>=12)

{

=1;

}

DisSecondL=%10;

DisSecondH=10;

DisMinutL=%10;

DisMinutH=10;

DisHourL=%10;

DisHourH=10;

}