ucos II+ucGUI+s3c2410+LCD+触摸屏整合

LCD_SWAP_RB_0 1

2.触摸屏驱动：

触摸屏驱动计算出触摸屏的坐标(x，y)，对dm2410实验板上的触摸屏，左下为原点，但不一定是(0，0)。两个函数：

1) 设置中断向量，开中断：

void SetTSInterrupt(void)

{

rADCDLY = (50000);

rADCCON = (114)|(ADCPRS6)|(73)|(02)|(01)|(0);

rADCTSC = (08)|(17)|(16)|(05)|(14)|(03)|(02)|(3);

pISR_ADC = (U32)TSIrqISR; //

rINTMSK = ~(BIT_ADC);

rINTSUBMSK = ~(BIT_SUB_TC);

}

2) 中断处理函数：

static void TSIrqISR(void)

{

int i;

U32 Pt[6];

rINTSUBMSK |= (BIT_SUB_ADC|BIT_SUB_TC);

if(rADCDAT0 0x8000)

{//抬起

isDown = 0;

rADCTSC = 0xff; // Set stylus down interrupt

TX = -1;

TY = -1; //抬起触笔时，TX,TY要值成不大于0的数

}

else //按下

{ isDown = 1;

rADCTSC=(08)|(07)|(06)|(15)|(14)|(13)|(02)|(1);

for(i=0;i

for(i=0;i5;i++) //5 times

{

rADCCON|=0x1; // Start X-position conversion

while(rADCCON 0x1); // Check if Enable_start is low

while(!(0x8000rADCCON)); // Check ECFLG

Pt[i]=(0x3ffrADCDAT0);

}

Pt[5]=(Pt[0]+Pt[1]+Pt[2]+Pt[3]+Pt[4])/5;//多次采样取平均值

TX = Pt[5];

rADCTSC=(08)|(07)|(16)|(15)|(04)|(13)|(02)|(2);

for(i=0;i

for(i=0;i5;i++) //5 times

{

rADCCON|=0x1; // Start Y-position conversion

while(rADCCON 0x1); // Check if Enable_start is low

while(!(0x8000rADCCON)); // Check ECFLG

Pt[i]=(0x3ffrADCDAT1);

}

Pt[5]=(Pt[0]+Pt[1]+Pt[2]+Pt[3]+Pt[4])/5;// 多次采样取平均值

TY = Pt[5];

rADCTSC=(18)|(17)|(16)|(05)|(14)|(03)|(02)|(3);

}

//cprintf(%d,%d\n,TX,TY);

OSMboxPost(TouchMbox, 0);//向处理触摸进程发消息

rSUBSRCPND |= BIT_SUB_TC;

rINTSUBMSK = ~(BIT_SUB_TC); // Unmask sub interrupt (TC)

ClearPending(BIT_ADC);

}

3) 需要的量：

#define LOOP 1

#define ADCPRS 0x27

int TX=0;//触摸坐标x

int TY=0;//触摸坐标y

extern OS_EVENT *TouchMbox;

int isDown;

4) 触摸屏校准：

Ucgui390中，带有一校准程序(于TOUCH_Calibrate.c中)，可以改写为我所用(见下文)。

也可设置默认值，测出左下最小坐标minX，minY和右上最大坐标maxX，maxY，注意是触摸坐标，不是lcd坐标，如下填写配置文件GUITouchConf.h:

#define GUI_TOUCH_AD_LEFT minX

#define GUI_TOUCH_AD_TOP maxY

#define GUI_TOUCH_AD_RIGHT maxX

#define GUI_TOUCH_AD_BOTTOM minY

#define GUI_TOUCH_SWAP_XY 0

#define GUI_TOUCH_MIRROR_X 1

#define GUI_TOUCH_MIRROR_Y 1

#define TOUCH_NEED_CALIBRATE 0

3、如下填写GUIConf.h：

#define GUI_OS (1) /* Compile with multitasking support */

#define GUI_SUPPORT_TOUCH (1) /* Support a touch screen (req. win-manager) */

#define GUI_SUPPORT_UNICODE (1) /* Support mixed ASCII/UNICODE strings */

#define GUI_SUPPORT_CHINESE (1)

#define GUI_DEFAULT_FONT GUI_Font6x8

#define GUI_ALLOC_SIZE 12500 /* Size of dynamic memory ... For WM and memory devices*/

#define GUI_WINSUPPORT 1 /* Window manager package available */

#define GUI_SUPPORT_MEMDEV 1 /* Memory devices available */

#define GUI_SUPPORT_AA 1 /* Anti aliasing available */

4、ucgui与lcd驱动函数的连接，即修改LCDWin.c文件：

在LCDWin.c中，去掉无用的头文件包含。

#define SETPIXEL(x, y, c) LCD2410_SetPixel(x, y, c, LCD_DISPLAY_INDEX)

#define GETPIXEL(x, y) LCD2410_GetPixel(x,y, LCD_DISPLAY_INDEX)

即将“LCDSIM_XX”改成“LCD2410_XX”，这两个函数位于lcd驱动文件中。

……………………………

#define SETPIXEL(x, y, c) \

if (!_CheckBound(c)) { \

LCD2410_SetPixel(x, y, c, LCD_DISPLAY_INDEX); \

}

#else

#define SETPIXEL(x, y, c) LCD2410_SetPixel(x, y, c, LCD_DISPLAY_INDEX)

#endif

#define GETPIXEL(x, y) LCD2410_GetPixel(x,y,LCD_DISPLAY_INDEX)

……………………………

static void _XorPixel(int x, int y) {

unsigned int Index = LCD_L0_GetPixelIndex(x,y);

LCD2410_SetPixel(x, y, LCD_NUM_COLORS-1-Index, LCD_DISPLAY_INDEX);

}

……………………………