GLCD mit SSD1289

void GLCD_SetWindow (unsigned int x, unsigned int y, unsigned int w, unsigned int h) 

{

  unsigned int xe, ye;

  if (Himax) {

    xe = x+w-1;

    ye = y+h-1;

    wr_reg(0x0002, x  >>    8); /* Column address start MSB           */

    wr_reg(0x0003, x  &  0xFF); /* Column address start LSB           */

    wr_reg(0x0004, xe >>    8); /* Column address end MSB             */

    wr_reg(0x0005, xe &  0xFF); /* Column address end LSB             */

    wr_reg(0x0006, y  >>    8); /* Row address start MSB              */

    wr_reg(0x0007, y  &  0xFF); /* Row address start LSB              */

    wr_reg(0x0008, ye >>    8); /* Row address end MSB                */

    wr_reg(0x0009, ye &  0xFF); /* Row address end LSB                */

  }

  else {

   #if (LANDSCAPE == 1)

    wr_reg(0x0050, y);          /* Vertical   GRAM Start Address      */

    wr_reg(0x0051, y+h-1);      /* Vertical   GRAM End   Address (-1) */

    wr_reg(0x0052, x);          /* Horizontal GRAM Start Address      */

    wr_reg(0x0053, x+w-1);      /* Horizontal GRAM End   Address (-1) */

    wr_reg(0x0020, y);

    wr_reg(0x0021, x);

   #else

    wr_reg(0x0050, x);          /* Horizontal GRAM Start Address      */

    wr_reg(0x0051, x+w-1);      /* Horizontal GRAM End   Address (-1) */

    wr_reg(0x0052, y);          /* Vertical   GRAM Start Address      */

    wr_reg(0x0053, y+h-1);      /* Vertical   GRAM End   Address (-1) */

    wr_reg(0x0020, x);

    wr_reg(0x0021, y);

   #endif

  }

}