kicontm.c

用51单片机定时器做的1602显示时钟

				#include <reg52.h>
#define	uchar unsigned	char
#define	uint  unsigned	int

sbit	P10=P1^0;
sbit	P11=P1^1;
sbit	P12=P1^2;
sbit	P13=P1^3;
	
void	init();
void	key_contorl();
void	convert();
void	display();
void	delay(uint z);

uchar	temp,t0,shi,shi,fen,miao,shi1,shi2,fen1,fen2,miao1,miao2;
/*
uchar	code table[]=
		{
		0xc0,0xf9,0xa4,
		0xb0,0x99,0x92,
		0x82,0xf8,0x80,0x90		//共阳数码管显示的0~9	
		};
		*/
uchar code table[]=
		{
		0x3f,0x06,0x5b,
		0x4f,0x66,0x6d,
		0x7d,0x07,0x7f,0x6f
		};

void	main()
{	 
	  	init();
	//	delay(50);
	while(1)
	{	
		convert();
		display();
		
	}
}

void	key_contorl()
{
	 if(P12==0)			//调节秒钟
	 {	
	 	miao++;
		if(miao==60)
		{miao=0;}
		delay(350);
	 }
	 if(P11==0)		   //调分钟
	 {
	 	fen++;
		if(fen==60)
		{fen=0;}
		delay(350);
	 }
	 if(P10==0)		  	//调小时
	 {
	 	shi++;
		if(shi==24)
		{shi=0;}
		delay(350);
	 }
	 if(P13==0)		   //特殊时间看会不会正常进位
	 {
		shi=23;
		fen=59;
		miao=50;
	 }
}
void	init()
{

	TMOD=0x11;
	TH0=(65536-50000)/256;
	TL0=(65536-50000)%256;
	EA=1;
	ET0=1;
	TR0=1;

}
void	convert()
{
	shi2=shi/10;
	shi1=shi%10;
	fen2=fen/10;
	fen1=fen%10;
	miao2=miao/10;
	miao1=miao%10;

}

void	display()
{	
	P3=0xfe;			//显示小时
	P0=table[shi2];
	delay(1);
	P3=0xfd;			
	P0=table[shi1];		
	delay(1);

  	P3=0xfb;	 		//显示一杠“——”
	P0=0x40;
	delay(1);

	P3=0xf7;			 //显示分钟
	P0=table[fen2];
	delay(1);
	P3=0xef;
	P0=table[fen1];
	delay(1);

	P3=0xdf;	 		//显示一杠“——”
	P0=0x40;
	delay(1);

	P3=0xbf;			//显示秒钟
	P0=table[miao2];	
	delay(1);
	P3=0x7f;
	P0=table[miao1];
	delay(1);
}

void	timer0()	interrupt	1
{
	TH0=(65536-50000)/256;
	TL0=(65536-50000)%256;
	key_contorl();	
	t0++;
	if(t0==20)
	{
	 	t0=0;
		miao++;
		if(miao==60)
		{
			miao=0;
			fen++;
			if(fen==60)
			{
				fen=0;
				shi++;
				if(shi==24)
				{
					shi=0;
				}
			}
		}
	}

		
	
}

void delay(uint z)
{
	uint x,y;
	for(x=z;x>0;x--)
		for(y=110;y>0;y--);
}