液晶和按键.c

这是一个用keil-51编写的C51程序

}		

void display1( uchar x_add, uchar *dat1)		//.数字
{
     write_c( x_add );//1xxx,xxxx 设定DDRAM 7位地址xxx,xxxx到地址计数器AC
     write_d( 0x2e+  0 );
     write_d( 0x30+  *dat1);
	 
}

/*void display2( uchar x_add, uchar *dat1)		//数字_
{
     write_c( x_add );//1xxx,xxxx 设定DDRAM 7位地址xxx,xxxx到地址计数器AC
     write_d( 0x30+  *dat1);
	 write_d( 0x20+  0 );
	 
}  */

void CLR_line(uchar dz)						/* 清除一行 */
{
		uchar i;

		for(i=0;i<2;i++)
		{
				write_c(dz);
				write_d(' ');
				Delay();
		}
}

void t0_int(void) interrupt 1		//时间
{

	TH0=0x4c;
  	TL0=0x00;
	time++;
	if(time==20)
	 {			    
	    time=0;
    	counts[3]++;
		if(counts[3]==10)
		  {
		    counts[3]=0;
			counts[2]++;
			if(counts[2]==10)
			  {
			    counts[2]=0;
				counts[1]++;
				if(counts[1]==10)
				  {
				  	counts[1]=0;
					counts[0]++;
				  }
			  }

		  }	   
	  }
    if((counts[0]==1)&&(counts[1]==2)&&(counts[2]==5)&&(counts[3]==1))
	   {
	     counts[0]=0;
		 counts[1]=0;
		 counts[2]=0;
	   }

   /*****************
    jj++;	
	if(jj==40)jj=0;
	if(jj<=aa) input1=0;
	else input1=1;
   /****************/

}

void t1_int(void) interrupt 3		//PWM

{
	/*TH1=0x4c;
  	TL1=0x00;  
	 
    jj++;	
	if(jj==40)jj=0;
	if(jj<=aa)input1=0;
	else {input1=1;	}*/
	if(++count<=(high_time))
     {input1=0;
	 input2=1;}
   else if(count<=100)
     {
       input1=1;
	   input2=0;
      }
   else
      count=0;
   TH0=0x18;
   TL0=0x10;

  
}


/*void add(void) interrupt 0		  //温度+
{
        Delay();
		begin++;
		if(m==1)begin=0;
		m=0; 
		counts[0]=0;
		counts[1]=0;
		counts[2]=0;
		counts[3]=0;
	
}

void sub(void) interrupt 2 		  //温度-
{
	 Delay();
	 begin--;
	 if(n==1)begin=99;
	 n=0;
	 counts[0]=0;
	 counts[1]=0;
	 counts[2]=0;
	 counts[3]=0;
	 
}  */
void delay10ms(void)
{
    unsigned char i,j,k;
    for(i=5;i>0;i--)
    for(j=4;j>0;j--)
    for(k=248;k>0;k--);
}


void getkey()
{
/*******************设定温度部分按键程序**********************/
	if(add==0)
	{
		delay10ms();
		delay10ms();
		if(add==0)
		  {
		   	
			begin++;
			if(begin==99)begin=0;
			 
			counts[0]=0;
			counts[1]=0;
			counts[2]=0;
			counts[3]=0;
		  }

	}
	while(add==0);
	
	if(sub==0)
	{
		delay10ms();
		delay10ms();
		if(sub==0)
		  {
		     begin--;
			 if(begin==0)begin=99;
			
			 counts[0]=0;
			 counts[1]=0;
			 counts[2]=0;
			 counts[3]=0;
		  }

	}
	while(sub==0);
}
/*******************************************************************/

	
/*************************************************************/


/***************************PID算法**************************/
unsigned int PIDCalc( struct PID *pp, unsigned int NextPoint )
{
	unsigned int dError,Error;
	Error = pp->SetPoint - NextPoint; // 偏差
	pp->SumError += Error; // 积分
	dError = pp->LastError - pp->PrevError; // 当前微分
	pp->PrevError = pp->LastError;
	pp->LastError = Error;
	return (pp->Proportion * Error 
	+ pp->Integral * pp->SumError 
	+ pp->Derivative * dError); 
}


void compare_temper()
{
	unsigned char i,s;
	temper=Data[2]*10+Data[1];

	s=begin;
	if(s>temper)
	{
		if(s-temper>1)   
	     {
			high_time=100;
			low_time=0;
		  }
		else
		  {
			  for(i=0;i<10;i++)
			    {  
					ow_reset();
					read_temp();
					work_temp();
					rin =(int)(Data[2]*10+Data[1]); // Read Input
					rout = PIDCalc ( &spid,rin ); // Perform PID Interation
			     }
				if (high_time<=100)
				high_time=(unsigned char)(rout/800);
				else
				high_time=100;
				low_time= (100-high_time);
		  }
      }
		 
		   
	else if(s<=temper)
	{
		if(temper-s>0)
		 {
			high_time=0;
			low_time=100;
		 }
		else
		{
			for(i=0;i<10;i++)
			 { 
				ow_reset();
				read_temp();
				work_temp();
				rin = (int)(Data[2]*10+Data[1]); // Read Input
				rout = PIDCalc ( &spid,rin ); // Perform PID Interation
			 }
			if (high_time<100)
			high_time=(unsigned char)(rout/10000);
			else
			high_time=0;
			low_time= (100-high_time);
		}
	}



     
}

/*****************************************************************/

void con_temp()

{	 
	unsigned int shijian;
	unsigned char wendu;
	shijian=(int)(counts[1]*100+counts[2]*10+counts[3]);
	wendu=Data[2]*10+Data[1];

   if(shijian<250)
     {
	 	compare_temper();
		
	 }
    
	if( (shijian>250)&&(shijian<350) )  
	  {
	    if((wendu>39)&&(wendu<43))
		
		  {	
		  
			//	    input2=0;	
			//		input1=1;
			  begin=40;
			  compare_temper();

		   }
	   }

		   if(shijian>350)  begin=50;

		 	if((shijian>350)&&(shijian<=400))
		  {
		  	 compare_temper();
		  }
		 if( (shijian>400)&&(shijian<=415) )
		  {
		  	 input2=0;
			 input1=1;
		  }


         if((shijian>415)&&(shijian<=465))
		  {
		  	 compare_temper();
		  }
		if( (shijian>465)&&(shijian<=480) )
		  {
		  	 input2=0;
			 input1=1;
		  }


		  if((shijian>480)&&(shijian<=530))
		  {
		  	 compare_temper();
		  }
		if( (shijian>530)&&(shijian<=545) )
		  {
		  	 input2=0;
			 input1=1;
		  }


		  if((shijian>545)&&(shijian<=565))
		  {
		  	 compare_temper();
		  }
		if( (shijian>565)&&(shijian<=610) )
		  {
		  	 input2=0;
			 input1=1;
		  }


		if((shijian>610)&&(shijian<850))
		  {
		  	 compare_temper();
		  }
		   
       	 if(shijian>851) 
		  {
		 
		        begin=40;
				compare_temper();

		   }


		  if(((shijian>=875)&&(shijian<885))||((shijian>=925)&&(shijian<938))||((shijian>=990)&&(shijian<1001))) 
		   {
		     dianji=0;
		   }	  else dianji=1;
		   
		 if((shijian==250)||(shijian==350)||(shijian==650)||(shijian==850)||(shijian==1130)) 
		   {
		     beep=0; 
		   }  else beep=1;	   

		 /*  if(((shijian>=5)&&(shijian<11))||((shijian>=25)&&(shijian<30))||((shijian>=35)&&(shijian<40))) 
		   {
		     dianji=0;
		   }	  else dianji=1;*/	
		   
		  
		 
	  // if((shijian>870)&&(shijian<876))  dianji=0;
	  //   else dianji=1;
}

void con_temp1()
{
   	 if((counts[1]*100+counts[2]*10+counts[3])<351)
	 {compare_temper();}
	 if((counts[1]*100+counts[2]*10+counts[3])==351)
	 {
		beep=0;
	 }   else  beep=1;

	 
}