text1

本程序能实现温度的实时采集与显示

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}

*/

const Uchar delay=250;  //延时时间常数
static void Wait1ms(void)//延迟1 ms
{
  Uchar cnt=0;
  while (cnt<delay) cnt++;
}
//延迟n ms 
void WaitNms(int n)
{
    Uchar i;
    for(i=1;i<=n;i++)
   	Wait1ms();
}



//**************************************************************************//
//以下是并口时才开的
//读忙标志,
void RDBF(void)
{
	Uchar temp; 
	RS=0;	// RS=0
	RW=1;	// RW=1
	while(1)
	{
	    P1=0xFF;      //数据线为输入
    	E=1;
	temp=P1;
	E=0;	// E=0
	if ((temp&0x80)==0) break;
    }	
}
//写数据到指令寄存器

void WRCommand(Uchar comm)
{
	RDBF();
	RW=0;
	P1=comm;
	E=1;
	E=0;
}
//写数据到数据寄存器
void WRData(Uchar TEMP)
{
	RDBF();
	RS=1;
	RW=0;
	P1=TEMP;
	E=1; 
	E=0;

}


//初始化LCD-8位接口
void LCDInit(void)
{  //	PSB=0; //串口
    PSB=1;//并口时选这个,上一行取消
    REST=1;
    REST=0;
    REST=1;
  	WRCommand(0x30);	//基本指令集,8位并行

	WRCommand(0x06);	//启始点设定：光标右移

	WRCommand(0x01);	//清除显示DDRAM

	WRCommand(0x0C);	//显示状态开关：整体显示开，光标显示关，光标显示反白关

	WRCommand(0x02);	//地址归零	
}

//显示数组字符串(显示半宽字型16*8点阵)
void ShowQQChar(Uchar addr,Uchar *english,Uchar count)
{	
	Uchar i;
	WRCommand(addr);	//设定DDRAM地址
	for(i=0;i<count;)
	{	
	    WRData(english[i*2]);
        WRData(english[i*2+1]);
		i++;
    }
}


void firstscreen(void)
{
//一屏
   WRCommand(0x01);	//清除显示DDRAM
   ShowQQChar(0x80,chinese1,lengthCF1);
   ShowQQChar(0x90,chinese2,lengthCF2);
   ShowQQChar(0x88,chinese3,lengthCF3);
   ShowQQChar(0x98,chinese4,lengthCF4);
   WaitNms(250);		//等待时间
   WaitNms(250);		//等待时间

}

void secondscreen(void)
{
//二屏
   WRCommand(0x01);	//清除显示DDRAM
   ShowQQChar(0x80,chinese5,lengthCF5);
   ShowQQChar(0x90,chinese6,lengthCF6);
   ShowQQChar(0x88,chinese7,lengthCF7);
   ShowQQChar(0x98,chinese8,lengthCF8);
   WaitNms(250);		//等待时间
   WaitNms(250);		//等待时间

}
void thirdscreen(void)
{
//三屏
   WRCommand(0x01);	//清除显示DDRAM
   ShowQQChar(0x90,chinese9,lengthCF9);
   WaitNms(250);		//等待时间
   WaitNms(250);		//等待时间

}
//四屏
void fourthscreen(void)
{
   WRCommand(0x01);	//清除显示DDRAM
   ShowQQChar(0x80,chinese10,lengthCF10);
      WaitNms(100);		//等待时间
   ShowQQChar(0x90,chinese11,lengthCF11);
         WaitNms(100);		//等待时间
   ShowQQChar(0x88,chinese12,lengthCF12);
         WaitNms(100);		//等待时间
   ShowQQChar(0x98,chinese13,lengthCF13);
   WaitNms(250);		//等待时间
   WaitNms(250);		//等待时间
      WaitNms(250);		//等待时间
}
void fifthscreen(void)
{
//五屏
   WRCommand(0x01);	//清除显示DDRAM
   ShowQQChar(0x80,chinese14,lengthCF14);
      WaitNms(100);		//等待时间
   ShowQQChar(0x90,chinese15,lengthCF15);
      WaitNms(100);		//等待时间
   ShowQQChar(0x88,chinese16,lengthCF16);
   WaitNms(250);		//等待时间
   WaitNms(250);		//等待时间
      WaitNms(250);		//等待时间
   WaitNms(250);		//等待时间

}
void sixthscreen(void)
{
//六屏
   WRCommand(0x01);	//清除显示DDRAM
   ShowQQChar(0x80,chinese17,lengthCF17);
   ShowQQChar(0x90,chinese18,lengthCF18);
   ShowQQChar(0x88,chinese19,lengthCF19);
   WaitNms(250);		//等待时间
   WaitNms(250);		//等待时间

}

//主函数
void main(void)
{
  LCDInit();
  while(1)
  {
    loop1:  firstscreen();
     if(start==0)
       {
    	loop2:     secondscreen();
        if(run==0)
	          {
	        	loop3: thirdscreen();
                if(display==0)
    	            {
		             loop4:	fourthscreen();
                      WaitNms(250);		//等待时间
                      WaitNms(250);		//等待时间
					  WaitNms(250);		//等待时间
					  WaitNms(250);		//等待时间
					  WaitNms(250);		//等待时间

		              fifthscreen();
					  WaitNms(250);		//等待时间
                      WaitNms(250);		//等待时间
					  WaitNms(250);		//等待时间
					  WaitNms(250);		//等待时间
					  WaitNms(250);		//等待时间
		                  if(close==0)
		                	{
							 sixthscreen();
					  WaitNms(250);		//等待时间
                      WaitNms(250);		//等待时间
					  WaitNms(250);		//等待时间
					  WaitNms(250);		//等待时间
					  WaitNms(250);		//等待时间
					  WaitNms(250);		//等待时间
                      WaitNms(250);		//等待时间
					  WaitNms(250);		//等待时间
					  WaitNms(250);		//等待时间
					  WaitNms(250);		//等待时间
		                	 goto loop1;
 		                    }
                     goto loop4;
		        	}
               goto loop3;
	           }
	    	goto loop2;
          }
     goto loop1;  
  
     }  
}