#include<reg51.h>
#include<stdio.h>
#include<absacc.h>
#include"key.h"
#include"lcd1602.h"
#define uint unsigned int
#define uchar unsigned char
#define DIGPORT  P2
#define WORDPORT  P0
bit int0_flag=0;   ///中斷申請標(biāo)記位
/*數(shù)碼管顯示編碼0-----9*/
uchar data CLOCK[4]={0,0,0,0};

//主函數(shù)
void main(void){
  uchar temp[16];
  uchar key;
   EA=1;            
   TR0=1;ET0=1;TR0=1;
   TMOD=0X01;
   TH0=0Xdc;TL0=0x88;   //T0定時(shí)
   IT0=1;TR1=0;EX0=1;IE0=1;
  
 LCD_init();

   
  while(1)
   {
   	
    
   if(int0_flag)
     {
	  
	 if(CLOCK[2]>35&&CLOCK[2]<60)
	   {CLOCK[3]=CLOCK[3]+1;
	    CLOCK[1]=0;
	    CLOCK[2]=0;
	 	sprintf(temp,"TIME:%2bu:%2bu:%2bu",CLOCK[3],CLOCK[2],CLOCK[1]);
        LCD_setxy(1,1);
       LCD_string(temp);
	    }
	  if(CLOCK[2]>0&&CLOCK[2]<25)
	    {CLOCK[3]=CLOCK[3];
	    CLOCK[2]=0;
	    CLOCK[1]=0;
		sprintf(temp,"TIME:%2bu:%2bu:%2bu",CLOCK[3],CLOCK[2],CLOCK[1]);
       LCD_setxy(1,1);
        LCD_string(temp);
	    }
		int0_flag=0;
	   }
  
    

    
 //小時(shí)
	
 	 key=keyscan();
 

    sprintf(temp,"TIME:%2bu:%2bu:%2bu",CLOCK[3],CLOCK[2],CLOCK[1]);
    LCD_setxy(1,1);
    LCD_string(temp);
	switch(key)
	{
	 case 1:
	 {TR0=0;
	 CLOCK[2]=CLOCK[2]+1;
	 if(CLOCK[2]==60)CLOCK[2]=0;
	 delay_10ms();
	
	 }TR0=1;
     break;
	 case 2:
	 {TR0=0;
	 CLOCK[3]=CLOCK[3]+1;
	 if(CLOCK[3]==24)CLOCK[3]=0;
	 delay_10ms();
	 }TR0=1;
     break;
     case 3:
	 {TR0=0;
	 CLOCK[1]=CLOCK[1]+1;
	 if(CLOCK[1]==60)CLOCK[1]=0;
	 delay_10ms();
	 }TR0=1;
     break;
	 case 4:
     CLOCK[2]=0;
	 CLOCK[1]=0;
	 CLOCK[3]=0;
	 break;
   }
   
   }
}
//子函數(shù)24小時(shí)時(shí)鐘
void timer0(void)  interrupt  1 using 1
{
  TH0=0xdc;
  TL0=0x88;

   
  //時(shí)鐘處理
  CLOCK[0]=CLOCK[0]+1;

  if (CLOCK[0]==100)
   {
     CLOCK[0]=0;
	 CLOCK[1]=CLOCK[1]+1;
	 if(CLOCK[1]==60)
	 {
	   CLOCK[1]=0;
	   CLOCK[2]=CLOCK[2]+1;
	   if(CLOCK[2]==60)
	   {
	     CLOCK[2]=0;
		 CLOCK[3]=CLOCK[3]+1;
		 if(CLOCK[3]==24)
		  {
		    CLOCK[3]=0;
			}

		}
	  }
   }
  }
/************外部中斷函數(shù)*****************/
void intflag() interrupt 0
{  
   int0_flag=1;
}