jingtouk_zuihou_1.c

这是一个采用Keil uVision3写的单片机控制摄像机镜头的小程序。

#include<reg52.h>
#define uint unsigned int
#define uchar unsigned char
uint js,du;
uchar shou,kaig,tongd,speed,fa;
sbit deng1=P2^2;
sbit deng2=P2^3;
sbit deng3=P2^4;
sbit deng4=P2^5;
sbit deng5=P2^6;
sbit deng6=P2^7;
uchar code table[]={
0xc0,0xf9,0xa4,0xb0,
0x99,0x92,0x82,0xf8,
0x80,0x90,0x88,0x83,
0xc6,0xa1,0x86,0x8e,0};
void delay(uint);
void chushihua()
{
	TMOD=0x21;//01;//设置定时器1为工作方式1
	TH0=(65536-50000)/256;
	TL0=(65536-50000)%256;
	TH1=0xfd; //设置波特率
	TL1=0xfd; //设置波特率
	ET0=1;
	TR0=1; //启动定时器0
	ET1=1;
	TR1=1;  //启动定时器1
	REN=1;  //串口收
	SM0=0;
	SM1=1;
	EA=1;
	ES=1;
	P0=0xff;
	P1=0xff;
	P2=0Xff;
    shou=0;
}
void jieshou()
{
//	TF0=1;
	if(RI==1)
	{
		uchar tong,spe;
		RI=0;
		shou=SBUF;
	//	shou=0x2b;
		if(shou>128)
		{
			kaig=shou&0x07;
			tongd=(shou>>3)&0x03;
			speed=(shou>>5)&0x03;
           	fa=0x80+kaig+(tong=tongd<<3)+(spe=speed<<5);
    	//	TI=0;
    		SBUF=fa;
    		if(TI==1)
    		{
    			TI=0;
    		}
		}
        if(shou==127)
        {
           	fa=shou;
    	//	TI=0;
    		SBUF=fa;
    		if(TI==1)
    		{
    			TI=0;
    		}
        }

	}
    if(shou==0)
    {
        kaig=0x0e;
		tongd=0x0e;
		speed=0x0e;
    }
}
void timer0()
{
	if(speed==0x00)
	{
	/*	uint k;
		while(TF0==1)
		{
			
			TF0=0;
			TH0=(65536-50000)/256;
		   TL0=(65536-50000)%256;
			k++;
		
			if(k++==500)
			{
				k=0;
			}
		} */
        delay(200);
	}
	if(speed==0x01)
	{
/*		uint k;
		while(TF0==1)
		{
			
			TF0=0;
			TH0=(65536-50000)/256;
		    TL0=(65536-50000)%256;
			k++;
		
			if(k++==1000)
			{
				k=0;
			}
		} */

	 delay(400); 
    }
}
void delay(uint z)
{
	uint x,y;
	for(x=z;x>0;x--)
		for(y=110;y>0;y--);
}
void tongdao()
{
	if(tongd==0x00)
	{
		deng1=0;
		P0=table[1];
	}
	if(tongd==0x01)
	{
		deng2=0;
		P0=table[2];
	}
	if(tongd==0x02)
	{
		deng3=0;
		P0=table[3];
	}
	if(tongd==0x03)
	{
		deng4=0;
		P0=table[4];
	}
}
void kaiguan()
{
	if(kaig==0x00)
	{
		P1=0x6a;
		timer0();
		P1=0xff;
	}
	if(kaig==0x01)
	{
		P1=0x65;
		timer0();
		P1=0xff;
	}
	if(kaig==0x02)
	{
		P1=0x5a;
		timer0();
		P1=0xff;
	}
	if(kaig==0x03)
	{
		P1=0x55;
		timer0();
		P1=0xff;
	}
	if(kaig==0x04)
	{
		P1=0x3a;
		timer0();
		P1=0xff;
	}
	if(kaig==0x05)
	{
		P1=0x35;
		timer0();
		P1=0xff;
	}
}
void main()
{
	chushihua();
    while(1)
	{
	
		jieshou();
		tongdao();
		kaiguan();
		P2=0xff;
		P0=0xff;
	}

}