复件 main.c

自动生升旗系统程序

#include<at89x52.h>

sfr PortCode = 0x80;  // P0
sfr PortBit  = 0xa0;  // P2



#include <AT89X52.H>

unsigned char zhengz[]={0xf1,0xf3,0xf2,0xf6,0xf4,0xfc,0xf8,0xf9};	 	// ** 正转
unsigned char fanz[]  ={0xf9,0xf8,0xfc,0xf4,0xf6,0xf2,0xf3,0xf1};	  	// ** 反转 

bit		run;			// ** 开启
bit		dir;			// ** 方向
unsigned int speed;		// ** 速度　
unsigned char tmp ;
unsigned int hight;		
unsigned char DispHight;
unsigned char SecCnt;
unsigned char Sec;

unsigned char code displaybit[9] = {
0x7f,0xbf,0xdf,0xef,0xf7,0xfb,0xfd,0xfe,0xff};           //数码管位分布(自左至右)

unsigned char code displaycode[] = {
0xfc,0x60,0xda,0xf2,0x66,0xb6,0xbe,0xe0,0xfe,0xf6};  //数码管字段0,1,2,3,4,5,6,7,8,9 

void delay(unsigned int Ms)
{
	unsigned char i;
	
	for( ; Ms != 0; Ms-- )
	{
		for(i = 1; i != 0; i-- );	
	}
}

void Display(unsigned int dat,unsigned char DotPosition,unsigned char ClearZeroFlag)
{
	unsigned char i;

	for(i = 0; i != 8; i++)
	{ 	
		PortBit = 0xFF;    //消除重影

		if(i == DotPosition) // 小数点处理
		{
			PortCode = (displaycode[(dat%10)]|0x01);
		}
		else		PortCode = displaycode[dat%10];

		PortBit = displaybit[i];

		if(ClearZeroFlag&&(!dat)&&(i>DotPosition)) return;

		dat /= 10;
		delay(255);	
	}
}

void initTimer(void)
{
	TMOD=0x1;
	TH0=0xff;
	TL0=0xff;
	TH1=0xff;
	TL1=0xff;
}

bit half;
bit halfstart;
main()
{
	initTimer();
	TR0=1;
	ET0=1;
//	TR1=1;
	ET1=1;
	EA=1;
	run = 0;
	tmp = 0;
	dir = 0;
	speed = 62869;	// ** 62869-> 30s   62000->40s   55000->120s
	hight = 0;

	half = 1;

	while(1)
	{
		if (P3_0==0)
		{
			delay(100);
			if (P3_0==0)	// ** 上升
			{
				run = 1;	
				dir = 1;
				hight = 11037;
				halfstart = 1;
			}
		}
		else if (P3_1==0)
		{
			delay(100);
			if (P3_1==0)	// ** 下降
			{
				run = 1;									
				halfstart = 1;
				if (half)
				{
					hight = 3660;
				}
				else 
				{
					hight = 11037;					
				}
				dir = 0;
			}
		}
		else if (P3_2==0)
		{
			delay(100);
			if (P3_2==0)	// ** 停止
			{
				run = 0;
				halfstart = 0;
				Sec = 0;
			}
		}
		
		if (dir)
			DispHight = 180 - hight/61;
		else 
			DispHight = hight/61;

		Display(DispHight,8,1);
	}
}
// ** 50 set minue
void timer0(void) interrupt 1
{
	TH0=speed/256;
	TL0=speed%256;		
	if (run&&hight)hight--;
	if (hight==0){run = 0;}
	if (!run) P1 = 0x0f;
	else
	{
		if (dir)
		P1 = zhengz[tmp];	
		else
		P1 = fanz[tmp];		

		tmp ++ ;
		if (tmp>8)tmp = 0;
	}	
}
/*
void timer1(void) interrupt 3
{
	TL1=0xb0;	
	TH1=0x3c;
	SecCnt ++;
	if (SecCnt==20)
	{
		Sec++;
	}
}*/