触摸屏实验(触摸屏介绍+硬件设计+软件设计。注：软件部分代码过长，理解即可)

#include "public.h"  
#include "uart.h"
#include "tftlcd.h"
#include "touch.h"
#include "gui.h"
u8 Touch_RST=0;
//触摸测试
void TOUCH_Test(void)
{
    static u16 penColor = BLUE;
    TOUCH_Scan();
    if(xpt_xy.sta)
    {    
        if(xpt_xy.lcdx>tftlcd_data.width)
            xpt_xy.lcdx=tftlcd_data.width-1;
        if(xpt_xy.lcdy>tftlcd_data.height)
            xpt_xy.lcdy=tftlcd_data.height-1;
        if((xpt_xy.lcdx>=(tftlcd_data.width-3*12))&&(xpt_xy.lcdy<24))
            Touch_RST=1;
        if(xpt_xy.lcdy > tftlcd_data.height - 20)
        {
            if(xpt_xy.lcdx>100)
            {
                penColor = YELLOW;
            }
            else if(xpt_xy.lcdx>80)
            {
                penColor = CYAN;
            }
            else if(xpt_xy.lcdx>60)
            {
                penColor = GREEN;
            }
            else if(xpt_xy.lcdx>40)
            {
               penColor = MAGENTA;
            }
            else if(xpt_xy.lcdx>20)
            {
                penColor = RED;
            }
            else if(xpt_xy.lcdx>0)
            {
                penColor = BLUE;
            }       
        }
        else
        {
            LCD_Fill(xpt_xy.lcdx-2,xpt_xy.lcdy-2,xpt_xy.lcdx+2,xpt_xy.lcdy+2,penColor);    
        }
    }        
}
//GUI测试
void GUI_Test(void)
{
    FRONT_COLOR=WHITE;
    LCD_ShowFontHZ(tftlcd_data.width/2-2*24-12, 0,"普中科技");
    LCD_ShowString(tftlcd_data.width/2-7*12,30,tftlcd_data.width,tftlcd_data.height,24,"www.prechin.cn");
    LCD_ShowString(tftlcd_data.width/2-7*8,55,tftlcd_data.width,tftlcd_data.height,24,"GUI Test");
    FRONT_COLOR=RED;
    gui_draw_bigpoint(10,55,GREEN);
    gui_draw_bline(10,80,120,80,10,GREEN);
    gui_draw_rectangle(10,95,30,30,GREEN);
    gui_draw_arcrectangle(50,95,30,30,5,1,BLUE,GREEN);
    gui_fill_rectangle(90,95,30,30,GREEN);
    //gui_fill_circle(90,120,20,GREEN);
    gui_fill_ellipse(30,150,20,10,GREEN);
    //更多的GUI等待大家来发掘和编写
    delay_ms(2000);
    LCD_Clear(BACK_COLOR);        
}
void main()
{
    u16 color=0;
    UART_Init();
    TFTLCD_Init();
Start:
    //GUI_Test();
    FRONT_COLOR=WHITE;
    LCD_ShowFontHZ(tftlcd_data.width/2-2*24-12, 0,"普中科技");
    LCD_ShowString(tftlcd_data.width/2-7*12,30,tftlcd_data.width,tftlcd_data.height,24,"www.prechin.cn");
    FRONT_COLOR=RED;
    LCD_ShowString(tftlcd_data.width-3*12,0,tftlcd_data.width,tftlcd_data.height,24,"RST");
    LCD_Fill(0, tftlcd_data.height - 20, 20, tftlcd_data.height, BLUE);
    LCD_Fill(20, tftlcd_data.height - 20, 40, tftlcd_data.height, RED);
    LCD_Fill(40, tftlcd_data.height - 20, 60, tftlcd_data.height, MAGENTA);
    LCD_Fill(60, tftlcd_data.height - 20, 80, tftlcd_data.height, GREEN);
    LCD_Fill(80, tftlcd_data.height - 20, 100, tftlcd_data.height, CYAN);
    LCD_Fill(100, tftlcd_data.height - 20, 120, tftlcd_data.height, YELLOW);
    while(1)
    {
        if(Touch_RST)
        {
            Touch_RST=0;
            LCD_Clear(BACK_COLOR);
            goto Start;
        }
        TOUCH_Test();
    }                    
}