dongtai1.c

这是另一个数码管动态显示的C语言程序.请有兴趣的朋友参考参考.

#include<reg52.h>

#define uchar unsigned char
#define uint unsigned int
uchar count,count0;
uint a,b,c,d,e,f;
unsigned long int disnum;
sbit dula=P2^7;
sbit wela=P2^6;

uchar code tabledu[]={
0x3f,0x06,0x5b,0x4f,
0x66,0x6d,0x7d,0x07,
0x7f,0x6f,0x77,0x7c,
0x39,0x5e,0x79,0x71};
void display(uchar,uchar,uchar,uchar,uchar,uchar);
void delay(uchar);

void main()
{	
	
	
	EA=1;
	ET1=1;
	TMOD=0x10;
	TH1=(65536-50000)/256;
	TL1=(65536-50000)%256;
	TR1=1;


	disnum=765432;
	while(1)
		{	
			if(count==2)
				{	
				 count=0;
			
				 if(disnum==765400)
					{
						while(1)
						{
							display(a,b/10000,c/1000,d/100,e/10,f%10);
							
						}
					 }		
					disnum--; 
					a=disnum/100000;
					b=disnum%100000;
					c=b%10000;
					d=c%1000;
					e=d%100;
					f=e%10;
			        display(a,b/10000,c/1000,d/100,e/10,f%10);
					
			}
	
	}
}

void  tim1() interrupt 3 
{
	TH1=(65536-50000)/256;
	TL1=(65536-50000)%256;
	count++;
}


void display( uchar liu, uchar wu ,uchar si, uchar san,uchar er,uchar yi)
{
	P0=0xff;//消除余辉
	wela=1;
	wela=0;
	P0=tabledu[liu];
	dula=1;
	dula=0;
	P0=0xfe;
	wela=1;
	wela=0;
	delay(10);
	
	P0=0xff;
	wela=1;
	wela=0;
	P0=tabledu[wu];
	dula=1;
	dula=0;
	P0=0xfd;
	wela=1;
	wela=0;
	delay(10);


	P0=0xff;
	wela=1;
	wela=0;
	P0=tabledu[si];
	dula=1;
	dula=0;
	P0=0xfb;
	wela=1;
	wela=0;
	delay(10);

	P0=0xff;
	wela=1;
	wela=0;
	P0=tabledu[san];
	dula=1;
	dula=0;
	P0=0xf7;
	wela=1;
	wela=0;
	delay(10);

	P0=0xff;
	wela=1;
	wela=0;
	P0=tabledu[er];
	dula=1;
	dula=0;
	P0=0xef;
	wela=1;
	wela=0;
	delay(10);

	P0=0xff;
	wela=1;
	wela=0;
	P0=tabledu[yi];
	dula=1;
	dula=0;
	P0=0xdf;
	wela=1;
	wela=0;
	delay(10);
}


void delay(uchar x)
{
	uchar a,b;
	for(a=x;a>0;a--)
		for(b=500;b>0;b--);	
}