گروه فنی مهندسی آرکام

#define  LCD_PIXEL_WIDTH   ((uint16_t)320)

#define  LCD_PIXEL_HEIGHT  ((uint16_t)240)

 

.....

 

#define TS_SWAP_NONE        0x00

#define TS_SWAP_X           0x01

#define TS_SWAP_Y           0x02

#define TS_SWAP_XY          0x04

 

.....

 

typedef enum

{

  TS_OK       = 0x00,

  TS_ERROR    = 0x01,

  TS_TIMEOUT  = 0x02

}TS_StatusTypeDef;

 

.....

 

typedef struct

{

  uint16_t TouchDetected;

  uint16_t x;

  uint16_t y;

}TS_StateTypeDef;

 

.....

 

static uint16_t ts_x_boundary, ts_y_boundary;

static uint8_t  ts_orientation;

 

.....

 

// xSize: Maximum X size of the TS area on LCD ==>> LCD_PIXEL_WIDTH

// ySize: Maximum Y size of the TS area on LCD ==>> LCD_PIXEL_HEIGHT

void TS_Init(uint16_t xSize, uint16_t ySize)

{

  /* Initialize x and y positions boundaries */

  ts_x_boundary  = xSize;

  ts_y_boundary  = ySize;

  ts_orientation = TS_SWAP_XY;

 

  /* Initialize the LL TS Driver */

  TSC_Init();

  TSC_Start();

}

 

.....

 

uint8_t TS_GetState(TS_StateTypeDef *TS_State)

{

  static uint32_t _x = 0, _y = 0;

  uint16_t xDiff, yDiff , x , y;

  uint16_t swap;

 

  TS_State->TouchDetected = TS_DetectTouch();

 

  if(TS_State->TouchDetected)

  {

    TS_GetXY(&x, &y);

   

    if(ts_orientation & TS_SWAP_X)

    {

      x = 4096 - x; 

    }

   

    if(ts_orientation & TS_SWAP_Y)

    {

      y = 4096 - y;

    }

   

    if(ts_orientation & TS_SWAP_XY)

    {

      swap = y;

      y = x;     

      x = swap;     

    }

   

    xDiff = x > _x? (x - _x): (_x - x);

    yDiff = y > _y? (y - _y): (_y - y);

   

    if (xDiff + yDiff > 5)

    {

      _x = x;

      _y = y;

    }

   

    TS_State->x = (ts_x_boundary * _x) >> 12;

    TS_State->y = (ts_y_boundary * _y) >> 12;

  } 

 

  return TS_OK;

}

.....