dianzibiao.txt

1602 液晶显示 电子表程序时 分 秒 使用的是新华龙单片机 100脚 的

#include<c8051f020.h>
#define uchar unsigned char
#define uint unsigned int
#define SYSCLK 22118400
sbit rs=P2^5;
sbit en=P2^7;
//unsigned long aa;
uchar num,shi,fen,miao,haom,aa,temp;

uchar code table1[]="  2008-08-24";
uchar code table2[]="    00:00:00:00";
void delay(uint z)
{
	uint x,y;
	for(x=z;x>0;x--)
		for(y=50;y>0;y--); 
}
void init()
{
	WDTCN=0xde;//关看门狗
	WDTCN=0xad;
	XBR2=0x40;//设置交叉开关使能
	P2MDOUT=0xf0;//P2^57推挽式输出
	P74OUT=0xf0;//P 7推挽式输出
}
void SYSCLK_init()
{
	OSCXCN=0x67;
	delay(5);
	OSCICN=0x04;
	CKCON=0X00;
}
void write_com(uchar com)
{
	rs=0;
	P7=com;
	delay(2);
	en=1;
	delay(2);
	en=0;
}
void write_data(uchar date)
{
	rs=1;
	P7=date;
	delay(2);
	en=1;
	delay(2);
	en=0;
}
void write_sfm(uchar add,uchar date)
{
	uchar shi,ge;
	shi=date/10;
	ge=date%10;
	write_com(0x80+0x40+add);
	write_data(0x30+shi);
	write_data(0x30+ge);
}
/*void write_anjian(uchar x,uchar y)
{
  uchar g,s;
  s=y/10; 
  g=y%10;
  write_com(0x80+0x40+x);
  write_data(0x30+s);
  write_data(0x30+g);

}*/
void key_com()
{
uchar  m;


 //while(1)
// {
  P5=0xf0;
  temp=P5;
    if(temp!=0xf0)
  {
	temp=temp&0xf0;
	
	  m=temp;
	    switch(m)
	  {
	      case 0xe0:{    haom++;
                        //a=a+1;
					   delay(500);
					   //write_anjian(13,haom);
					   write_sfm(13,haom);
					   delay(500);	
                      			   
					  
					  
				       }
					   break;
	                  
		 case 0xd0: {       miao++;    
		                  	//	b=b+1;
		                 		 delay(500);
						// write_anjian(10,miao);
							write_sfm(10,miao);
					
						 delay(500);
					
						 
					  }
					  break;         
	                  
		  case 0xb0: {     fen++;
		  				  
						
		                  //	n2=n2+1;
		                 	delay(500);
				//	write_anjian(7,fen);
				write_sfm(7,fen);
					
					delay(500);
						
					 }
					 break;
	                  

		   case 0x70: {    shi++;
		                        //n3=n3+1;
		                        delay(500);
					//write_anjian(4,shi);
					write_sfm(4,shi);	  
				         delay(500);
						  
					  }
					  break ;
					  
	   // }   
 }
 }
 }
void main()
{
	init();
	SYSCLK_init();
	P2=0x0f;
	P6=0x00;
	en=0;
	write_com(0x38);
	write_com(0x0c);
	write_com(0x06);
	write_com(0x01);
		
	TMOD=0x11;
	TH0=0xdc;
	TL0=0x00;
	EA=1;
	ET0=1;
	TR0=1;
		
		for(num=0;num<12;num++)
		{
			write_data(table1[num]);
		}
		write_com(0x80+0x40);
		for(num=0;num<13;num++)
		{
			write_data(table2[num]);
		}
	
		while(1)
			{   
			   // key_com();
				if(aa==2)
				{   
		        	aa=0;
                    haom++;
                    if(haom==99)
                     {
                      haom=0;
                                   
					  miao++;
					if(miao==60)
					{
						miao=0;
						fen++;
						if(fen==60)
						{
							fen=0;
							shi++;
							if(shi==24)
							{
								shi=0;
							}
							write_sfm(4,shi);
						}
						write_sfm(7,fen);
					}
					write_sfm(10,miao);
				}
                              write_sfm(13,haom);
                            }      
			
			}
	
}
void timer0() interrupt 1 using 0
{
	TH0=0xf8;
	TL0=0xc4;
   	 aa++;
	 key_com();
}
/*void timer1() interrupt 3
{
    TH1=0x;
	TL1=0x=
}*/