Пример #1
0
//触摸屏校准代码
//得到四个校准参数
void Touch_Adjust(void)
{								 
	signed short pos_temp[4][2];//坐标缓存值
	u8  cnt=0;	
	u16 d1,d2;
	u32 tem1,tem2;
	float fac; 	   
	cnt=0;				
	POINT_COLOR=BLUE;
	BACK_COLOR =WHITE;
	LCD_Clear(WHITE);//清屏   
	POINT_COLOR=RED;//红色 
	LCD_Clear(WHITE);//清屏 
	Drow_Touch_Point(20,20);//画点1 
	Pen_Point.Key_Sta=Key_Up;//消除触发信号 
	Pen_Point.xfac=0;//xfac用来标记是否校准过,所以校准之前必须清掉!以免错误	 
	while(1)
	{
		if(Pen_Point.Key_Sta==Key_Down)//按键按下了
		{
			if(Read_TP_Once())//得到单次按键值
			{  								   
				pos_temp[cnt][0]=Pen_Point.X;
				pos_temp[cnt][1]=Pen_Point.Y;
				cnt++;
			}			 
			switch(cnt)
			{			   
				case 1:
					LCD_Clear(WHITE);//清屏 
					Drow_Touch_Point(220,20);//画点2
					break;
				case 2:
					LCD_Clear(WHITE);//清屏 
					Drow_Touch_Point(20,300);//画点3
					break;
				case 3:
					LCD_Clear(WHITE);//清屏 
					Drow_Touch_Point(220,300);//画点4
					break;
				case 4:	 //全部四个点已经得到
	    		    //对边相等
					tem1=abs(pos_temp[0][0]-pos_temp[1][0]);//x1-x2
					tem2=abs(pos_temp[0][1]-pos_temp[1][1]);//y1-y2
					tem1*=tem1;
					tem2*=tem2;
					d1=sqrt(tem1+tem2);//得到1,2的距离
					
					tem1=abs(pos_temp[2][0]-pos_temp[3][0]);//x3-x4
					tem2=abs(pos_temp[2][1]-pos_temp[3][1]);//y3-y4
					tem1*=tem1;
					tem2*=tem2;
					d2=sqrt(tem1+tem2);//得到3,4的距离
					fac=(float)d1/d2;
					if(fac<0.95||fac>1.05||d1==0||d2==0)//不合格
					{
						cnt=0;
						LCD_Clear(WHITE);//清屏 
						Drow_Touch_Point(20,20);
						ADJ_INFO_SHOW("ver fac is:");   
						LCD_ShowNum(40+24,40,pos_temp[0][0],4,16);		//显示数值
						LCD_ShowNum(40+24+80,40,pos_temp[0][1],4,16);	//显示数值
						LCD_ShowNum(40+24,60,pos_temp[1][0],4,16);		//显示数值
						LCD_ShowNum(40+24+80,60,pos_temp[1][1],4,16);	//显示数值
						LCD_ShowNum(40+24,80,pos_temp[2][0],4,16);		//显示数值
						LCD_ShowNum(40+24+80,80,pos_temp[2][1],4,16);	//显示数值
						LCD_ShowNum(40+24,100,pos_temp[3][0],4,16);		//显示数值
						LCD_ShowNum(40+24+80,100,pos_temp[3][1],4,16);	//显示数值
						//扩大100倍显示
						LCD_ShowNum(40,140,fac*100,3,16);//显示数值,该数值必须在95~105范围之内.
						continue;
					}
					tem1=abs(pos_temp[0][0]-pos_temp[2][0]);//x1-x3
					tem2=abs(pos_temp[0][1]-pos_temp[2][1]);//y1-y3
					tem1*=tem1;
					tem2*=tem2;
					d1=sqrt(tem1+tem2);//得到1,3的距离
					
					tem1=abs(pos_temp[1][0]-pos_temp[3][0]);//x2-x4
					tem2=abs(pos_temp[1][1]-pos_temp[3][1]);//y2-y4
					tem1*=tem1;
					tem2*=tem2;
					d2=sqrt(tem1+tem2);//得到2,4的距离
					fac=(float)d1/d2;
					if(fac<0.95||fac>1.05)//不合格
					{
						cnt=0;
						LCD_Clear(WHITE);//清屏 
						Drow_Touch_Point(20,20);
						ADJ_INFO_SHOW("hor fac is:");   
						LCD_ShowNum(40+24,40,pos_temp[0][0],4,16);		//显示数值
						LCD_ShowNum(40+24+80,40,pos_temp[0][1],4,16);	//显示数值
						LCD_ShowNum(40+24,60,pos_temp[1][0],4,16);		//显示数值
						LCD_ShowNum(40+24+80,60,pos_temp[1][1],4,16);	//显示数值
						LCD_ShowNum(40+24,80,pos_temp[2][0],4,16);		//显示数值
						LCD_ShowNum(40+24+80,80,pos_temp[2][1],4,16);	//显示数值
						LCD_ShowNum(40+24,100,pos_temp[3][0],4,16);		//显示数值
						LCD_ShowNum(40+24+80,100,pos_temp[3][1],4,16);	//显示数值
						//扩大100倍显示
						LCD_ShowNum(40,140,fac*100,3,16);//显示数值,该数值必须在95~105范围之内.
 						continue;
					}//正确了
								   
					//对角线相等
					tem1=abs(pos_temp[1][0]-pos_temp[2][0]);//x1-x3
					tem2=abs(pos_temp[1][1]-pos_temp[2][1]);//y1-y3
					tem1*=tem1;
					tem2*=tem2;
					d1=sqrt(tem1+tem2);//得到1,4的距离
	
					tem1=abs(pos_temp[0][0]-pos_temp[3][0]);//x2-x4
					tem2=abs(pos_temp[0][1]-pos_temp[3][1]);//y2-y4
					tem1*=tem1;
					tem2*=tem2;
					d2=sqrt(tem1+tem2);//得到2,3的距离
					fac=(float)d1/d2;
					if(fac<0.95||fac>1.05)//不合格
					{
						cnt=0;
						LCD_Clear(WHITE);//清屏 
						Drow_Touch_Point(20,20);
						ADJ_INFO_SHOW("dia fac is:");   
						LCD_ShowNum(40+24,40,pos_temp[0][0],4,16);		//显示数值
						LCD_ShowNum(40+24+80,40,pos_temp[0][1],4,16);	//显示数值
						LCD_ShowNum(40+24,60,pos_temp[1][0],4,16);		//显示数值
						LCD_ShowNum(40+24+80,60,pos_temp[1][1],4,16);	//显示数值
						LCD_ShowNum(40+24,80,pos_temp[2][0],4,16);		//显示数值
						LCD_ShowNum(40+24+80,80,pos_temp[2][1],4,16);	//显示数值
						LCD_ShowNum(40+24,100,pos_temp[3][0],4,16);		//显示数值
						LCD_ShowNum(40+24+80,100,pos_temp[3][1],4,16);	//显示数值
						//扩大100倍显示
						LCD_ShowNum(40,140,fac*100,3,16);//显示数值,该数值必须在95~105范围之内.
						continue;
					}//正确了
					//计算结果
					Pen_Point.xfac=(float)200/(pos_temp[1][0]-pos_temp[0][0]);//得到xfac		 
					Pen_Point.xoff=(240-Pen_Point.xfac*(pos_temp[1][0]+pos_temp[0][0]))/2;//得到xoff
						  
					Pen_Point.yfac=(float)280/(pos_temp[2][1]-pos_temp[0][1]);//得到yfac
					Pen_Point.yoff=(320-Pen_Point.yfac*(pos_temp[2][1]+pos_temp[0][1]))/2;//得到yoff  

					if(abs(Pen_Point.xfac)>2||abs(Pen_Point.yfac)>2)//触屏和预设的相反了.
					{
						cnt=0;
						LCD_Clear(WHITE);//清屏 
						Drow_Touch_Point(20,20);
						LCD_ShowString(35,110,"TP Need readjust!");
						Pen_Point.touchtype=!Pen_Point.touchtype;//修改触屏类型.
						if(Pen_Point.touchtype)//X,Y方向与屏幕相反
						{
							CMD_RDX=0X90;
							CMD_RDY=0XD0;	 
						}else				   //X,Y方向与屏幕相同
						{
							CMD_RDX=0XD0;
							CMD_RDY=0X90;	 
						}
						delay_ms(500);
						continue;
					}
					POINT_COLOR=BLUE;
					LCD_Clear(WHITE);//清屏
					LCD_ShowString(35,110,"Touch Screen Adjust OK!");//校正完成
					delay_ms(500);
					LCD_Clear(WHITE);//清屏   
					return;//校正完成				 
			}
		}
	} 
}		    
Пример #2
0
//触摸屏校准代码
//得到四个校准参数
void drv_touchAdjust(void)
{
	uint16_t pos_temp[4][2];//坐标缓存值
	uint8_t  cnt = 0;
	uint16_t d1, d2;
	uint32_t tem1, tem2;
	float fac;
	cnt = 0;
	POINT_COLOR = BLUE;
	BACK_COLOR = WHITE;
	drv_lcdClear(WHITE);//清屏
	POINT_COLOR = RED; //红色
	drv_lcdClear(WHITE);//清屏
	Drow_Touch_Point(20, 20); //画点1
	Pen_Point.Key_Sta = Pen_Up; //消除触发信号
	Pen_Point.xfac = 0; //xfac用来标记是否校准过,所以校准之前必须清掉!以免错误
	while(1)
	{
		if(Pen_Point.Key_Sta == Pen_Down) //按键按下了
		{
			Pen_Point.Key_Sta = Pen_Up;
			if(Read_TP_Once())//得到单次按键值
			{
				pos_temp[cnt][0] = Pen_Point.X;
				pos_temp[cnt][1] = Pen_Point.Y;
				cnt++;
			}
			switch(cnt)
			{
				case 1:
					drv_lcdClear(WHITE);//清屏
					Drow_Touch_Point(220, 20); //画点2
					break;
				case 2:
					drv_lcdClear(WHITE);//清屏
					Drow_Touch_Point(20, 300); //画点3
					break;
				case 3:
					drv_lcdClear(WHITE);//清屏
					Drow_Touch_Point(220, 300); //画点4
					break;
				case 4:	 //全部四个点已经得到
					//对边相等
					tem1 = abs(pos_temp[0][0] - pos_temp[1][0]); //x1-x2
					tem2 = abs(pos_temp[0][1] - pos_temp[1][1]); //y1-y2
					tem1 *= tem1;
					tem2 *= tem2;
					d1 = sqrt(tem1 + tem2); //得到1,2的距离
					tem1 = abs(pos_temp[2][0] - pos_temp[3][0]); //x3-x4
					tem2 = abs(pos_temp[2][1] - pos_temp[3][1]); //y3-y4
					tem1 *= tem1;
					tem2 *= tem2;
					d2 = sqrt(tem1 + tem2); //得到3,4的距离
					fac = (float)d1 / d2;
					if(fac < 0.95 || fac > 1.05 || d1 == 0 || d2 == 0) //不合格
					{
						cnt = 0;
						drv_lcdClear(WHITE);//清屏
						Drow_Touch_Point(20, 20);
						continue;
					}
					tem1 = abs(pos_temp[0][0] - pos_temp[2][0]); //x1-x3
					tem2 = abs(pos_temp[0][1] - pos_temp[2][1]); //y1-y3
					tem1 *= tem1;
					tem2 *= tem2;
					d1 = sqrt(tem1 + tem2); //得到1,3的距离
					tem1 = abs(pos_temp[1][0] - pos_temp[3][0]); //x2-x4
					tem2 = abs(pos_temp[1][1] - pos_temp[3][1]); //y2-y4
					tem1 *= tem1;
					tem2 *= tem2;
					d2 = sqrt(tem1 + tem2); //得到2,4的距离
					fac = (float)d1 / d2;
					if(fac < 0.95 || fac > 1.05) //不合格
					{
						cnt = 0;
						drv_lcdClear(WHITE);//清屏
						Drow_Touch_Point(20, 20);
						continue;
					}//正确了
					//对角线相等
					tem1 = abs(pos_temp[1][0] - pos_temp[2][0]); //x1-x3
					tem2 = abs(pos_temp[1][1] - pos_temp[2][1]); //y1-y3
					tem1 *= tem1;
					tem2 *= tem2;
					d1 = sqrt(tem1 + tem2); //得到1,4的距离
					tem1 = abs(pos_temp[0][0] - pos_temp[3][0]); //x2-x4
					tem2 = abs(pos_temp[0][1] - pos_temp[3][1]); //y2-y4
					tem1 *= tem1;
					tem2 *= tem2;
					d2 = sqrt(tem1 + tem2); //得到2,3的距离
					fac = (float)d1 / d2;
					if(fac < 0.95 || fac > 1.05) //不合格
					{
						cnt = 0;
						drv_lcdClear(WHITE);//清屏
						Drow_Touch_Point(20, 20);
						continue;
					}//正确了
					//计算结果
					Pen_Point.xfac = (float)200 / (pos_temp[1][0] - pos_temp[0][0]); //得到xfac
					Pen_Point.xoff = (240 - Pen_Point.xfac * (pos_temp[1][0] + pos_temp[0][0])) / 2; //得到xoff
					Pen_Point.yfac = (float)280 / (pos_temp[2][1] - pos_temp[0][1]); //得到yfac
					Pen_Point.yoff = (320 - Pen_Point.yfac * (pos_temp[2][1] + pos_temp[0][1])) / 2; //得到yoff
					POINT_COLOR = BLUE;
					drv_lcdClear(WHITE);//清屏
					drv_lcdShowString(35, 110, "Touch Screen Adjust OK!"); //校正完成
					Delay_ms(1000);
					drv_lcdClear(WHITE);//清屏
					return;//校正完成
			}
		}
	}
}