51单片机定时器程序

#include<intrins.h>
#define uint unsigned int
#define uchar unsigned char
sbit duan=P2^6;
sbit wei=P2^7;
uchar temp,t0;
uint count;
uint t0_1,t0_count, m,n,num[6];
uchar code tableduan[]={
0x3f,0x06,0x5b,0x4f,
0x66,0x6d,0x7d,0x07,
0x7f,0x6f,0x77,0x7c,
0x39,0x5e,0x79,0x71};
uchar code tablewei[]={
0xfe,0xfd,0xfb,0xf7,0xef,0xdf};
void ();
void display(unsigned long int  input);
void main()
{
	init();
	while(1)
	{
		for(count=60;count&gt;0;count--)
		{
			display(count);
			t0_1=0;
			t0_count=0;
		}
	 TR0=0;
	 P1=0x00;
	 duan=1;
	 P0=0x00;
	 duan=0;

	}

}

void ()
{
	temp=0xfe;
	P1=temp;
	TMOD=0x11;
	TH0=(655360-5000)/256;
	TL0=(655360-5000)%256;
	EA=1;
	ET0=1;
	TR0=1;
	
	t0=0;
	t0_1=0;
	t0_count=0;
}
void display(unsigned long int  input)
{
	uchar m,n;
//变量初始化
	m=0;
	n=0;
//数位分离
	if(input==0)
	{
		num[0]=0;
		n=1;
	}
	else
		for(n=0;input!=0;n++)
		{
			num[n]=input%10;
			input=input/10;
		}
	n--;
//时间判断并输出
	while(t0_count!=200)//数数的时间间隔,在此设置间隔并在主函数for循环中清零。
	{
		if(t0_1==1)//屏幕刷新周期
		{
			t0_1=0;
			wei=1;
			P0=tablewei[m];
			wei=0;
			duan=1;
			P0=tableduan[num[n-m]];
			duan=0;
			m++;
			if(m==n+1)
				m=0;
		}

	}
}
void timer0() interrupt 1
{
	TH0=(655360-5000)/256;
	TL0=(655360-5000)%256;
	t0++;
	t0_1++;
	t0_count++;
	if(t0==100)
	{
		t0=0;
		temp=_crol_(temp,1);
		P1=temp;
	}
}