数码管显示数字钟_数码管显示时间代码

数学管显示数字钟

请按照如图所示的设计一个数字钟，要是显示时钟的时分秒三位，秒钟从0记到60，分钟加一，分钟从0记到60，时钟加一。
设置六个按钮，分别是对分钟+1、-1，时钟+1、-1，数码管显示时钟和关闭显示。

代码如下：

#include <reg51.h>
sbit key1 = P1^0;
sbit key2 = P1^1;
sbit key3 = P1^2;
sbit key4 = P1^3;
sbit key5 = P1^4;
sbit key6 = P1^5;
bit flag1s = 0;

unsigned char hour = 0;
unsigned char minute = 0;
unsigned char second = 0;
unsigned char data k1state;
unsigned char data k2state;

void FreshTime();
void TimeInit();
void InitLedBuff();
void keyscan();
  
unsigned char code LedChar[] = {  //共阴数码管显示字符转换表
    0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,0x07,
    0x7f,0x6f,0x77,0x7c,0x39,0x5e,0x79,0x71,0x40,0x00};
unsigned char LedBuff[8] = {  //数码管显示缓冲区
    0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff};
 
void TimeInit(){	//定时器初始化
  TMOD = 0X11;    //设置定时器为模式1 16位计数器
  TL0 = 0xB0; 
  TH0 = 0x3C;     //定时初值 50ms
  TL1 = 0x18;
  TH1 = 0xFC;		//定时初值 1ms
  TR0 = 1;    //定时器0开始计时
  ET0 = 1;    //使能定时器0	
  TR1 = 1;    //定时器1开始计时
  ET1 = 1;    //使能定时器1 	
  PT0 = 1;    //提高计时准确性，提高定时器0中断优先级
  EA = 1;     //打开总中断
}
void InitLedBuff(){   //初始化时间到显示缓冲区
  LedBuff[0] = hour/10;
  LedBuff[1] = hour%10;
  LedBuff[2] = minute/10;
  LedBuff[3] = minute%10;
  LedBuff[4] = second/10;
  LedBuff[5] = second%10;
}
void Ledfresh() {	  //数码管显示刷新
  static unsigned char i = 0;
  switch(i)
  {
    case 0 : P2 = ~(0x01<<i);P0 = LedChar[LedBuff[0]];i++;break;
    case 1 : P2 = ~(0x01<<i);P0 = LedChar[LedBuff[1]];i++;break;
    case 2 : P2 = ~(0x01<<i);P0 = 0x40;i++;break;//时分间隔线
    case 3 : P2 = ~(0x01<<i);P0 = LedChar[LedBuff[2]];i++;break;
    case 4 : P2 = ~(0x01<<i);P0 = LedChar[LedBuff[3]];i++;break;
    case 5 : P2 = ~(0x01<<i);P0 = 0x40;i++;break;//分秒间隔线
    case 6 : P2 = ~(0x01<<i);P0 = LedChar[LedBuff[4]];i++;break;
    case 7 : P2 = ~(0x01<<i);P0 = LedChar[LedBuff[5]];i=0;break;
  }
}
void FreshTime(){	 //刷新时间到显示缓冲区
  second++;
  if(second == 60)//进位
  {
    second = 0;
    minute++;  
    if(minute==60)//进位
    {
      minute=0;//上次分钟会显示到60，改进后我分钟的显示移动到清零之后，这样就不会出现分钟显示到60的情况
      hour++;
	  LedBuff[2] = 0;
      LedBuff[3] = 0;
      if(hour == 24)
         hour = 0;
         LedBuff[0] = hour/10;
         LedBuff[1] = hour%10;
    }else{
	   LedBuff[2] = minute/10;
       LedBuff[3] = minute%10; 
	} 
	
  }
  LedBuff[4] = second/10;
  LedBuff[5] = second%10;
}
void main(){
    TimeInit();
    InitLedBuff();
    while(1)//显示内容处理
    { 
    	keyscan();
	}
}
void Time0() interrupt 1 {	  // 50ms
  static unsigned char n = 0;
  TL0 = 0xB0;
  TH0 = 0x3C;
  n++;
  if(n==20)//1s标志位
  {
    n=0;
    FreshTime();
  }
  
}

void Time1() interrupt 3{  // 1ms
  TL1 = 0x18;		//
  TH1 = 0xFC;
  		//定时初值 1ms
  Ledfresh();
}
void _nop(){
   int i ;
   while(i++ < 1000);
}
void keyscan(){
   if(!key1){
      _nop();
	  if(!key1){
		 if(minute == 60){
            minute = 0;
            hour++;
			LedBuff[2] =0;
            LedBuff[3] = 0;
            if(hour == 24)
               hour = 0;
               LedBuff[0] = hour/10;
               LedBuff[1] = hour%10;
            }else{
			   minute++;
           	   LedBuff[2] = minute/10;
               LedBuff[3] = minute%10;
			} 
	  }
	  while(!key1);
   }
   if(!key2){
      _nop();
	  if(!key2){
	     if(minute != 0){
		    minute--;
		 }else{
		    minute = 60;
			hour--;
			LedBuff[0] = hour/10;
            LedBuff[1] = hour%10;
		 }
		 LedBuff[2] = minute/10;
         LedBuff[3] = minute%10; 
	  }
	  while(!key2);
   }
   if(!key3){
      _nop();
	  if(!key3){
	     hour++;
		 if(hour == 25){
		    hour = 0;
		 }
		 LedBuff[0] = hour/10;
         LedBuff[1] = hour%10;
	  }
	  while(!key3);
   }
   if(!key4){
      _nop();
	  if(!key4){
	     hour--;
		 if(hour == -1){
		  	hour = 0;
			}
		 LedBuff[0] = hour/10;
         LedBuff[1] = hour%10;
	  }
	  while(!key4);
   }
   if(!key5){
      _nop();
	  if(!key5){
		 P2 = 0xff;
	     TR0 = 0;    //定时器0开始计时
 	     TR1 = 0;    //定时器1开始计时
  	     ET1 = 0;    //使能定时器1
 	     ET0 = 0;    //使能定时器0	 	
 	     PT0 = 0;    //提高计时准确性，提高定时器0中断优先级
 	     EA = 0;
		 
	  }
	  while(!key5);
   }
   if(!key6){
      _nop();
	  if(!key6){
	      TimeInit();	     
	  }
	  while(!key6);
   }
}
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