w90p710开发版LCD问题求助，请大侠帮忙

只看该作者 · 2010-8-10 20:43

现在在TFT_LCD上作描点函数。LCD 型号 auo3.0''TFT A030DL01 920X240;
遇到了问题：每行最多只能显示320个像素点（从最左端到最右端均匀显示），如果说LCD 型号不对，是320X240 ，可显存缓冲区为啥是按照960*240来配置的，难道是华邦提供的LCD的库函数有问题？具体代码如下，请万工和其他人指点。
VOID LCD_BuildInTest(VOID)
{
extern UINT8 image_960x240_16bpp[LCD_PATTERN_SIZE];
INT nLoop;
INT nLEDLoop = 0;
LCD_LOCATION_T location;
LCD_IMAGE_T image;
PUCHAR puLcdBuffer;
CHAR cUserSelect;

INT8 PixelSEQ = 1; //r1g2b3r4g5b6
unsigned int x=0,y=0 ,i=0;
Set_EBILED(0x00);

memset(&image, 0, sizeof(LCD_IMAGE_T));
memset(&location, 0, sizeof(LCD_LOCATION_T));
sysPrintf("\nStart LCD test:\n");
// window location
location.x = 0;
location.y = 0;
// window size
image.width = 960;
image.height = 240;
lcdInit(VIDEO_DEVICE);
lcdOpen(VIDEO_DEVICE);
  puLcdBuffer = lcdMmap(VIDEO_DEVICE, image.width * image.height*2 );
// memcpy(puLcdBuffer, image_480x240_16bpp, image.width * image.height * 2);

memset(puLcdBuffer, 0x00, image.width * image.height*2 );

lcdIoctl(VIDEO_DEVICE, LCD_IOC_SET_IMAGE_SIZE, (UINT32)&image);
lcdIoctl(VIDEO_DEVICE, LCD_IOC_SET_WINDOW, (UINT32)&location);
lcdIoctl(VIDEO_DEVICE,LCD_IOC_PIXELSEQ,(UINT32) &PixelSEQ);
lcdIoctl(VIDEO_DEVICE, LCD_IOC_LCD_ENABLE, 0);
lcdIoctl(VIDEO_DEVICE, LCD_IOC_LCD_DISABLE, 0);
lcdIoctl(VIDEO_DEVICE, LCD_IOC_LCD_ENABLE, 0);
lcdIoctl(VIDEO_DEVICE, LCD_IOC_DISPLAY_ON, 0);

do
{
   cUserSelect = sysGetChar();// Get user select
      switch(cUserSelect)
      {
         case '1':
         { sysPrintf(" x= %d--",x);  //自己编写的测试代码，发现只有当x=5,8,11,14,17,20,23,.......屏幕上才显示像素点
            *(((unsigned short *)(puLcdBuffer)) + x)=0Xe0E0;
               x=x+1;
            break;
         }

         default: break;
      }
}while(cUserSelect != 27);// Do until user press ESC


      for(x=960*3,y=0;x<960*3+960;x++)
         {    //在第三行描点，画直线，发现，只能有320个像素点显示出来，并且是从左到右手均匀分布的，
               感觉是间隔3个像素才能显示
            *(((unsigned short *)(puLcdBuffer)) +y*960 + x)=0Xe0E0;
         }

for(nLoop = 0; nLoop < LCD_SHOW_DELAY*10; nLoop++)
{
      if((nLoop%1000000) == 0)
      {
         sysPrintf(".");
         Set_EBILED(1<<nLEDLoop++);
         if(nLEDLoop == 8)
         {
            nLEDLoop = 0;
         }
      }
      if(inpb(REG_UART0_LSR) & 0x01)
  {
sysGetChar();
break;
  }
}
memset(puLcdBuffer, 0x0, image.width * image.height*2 );
lcdIoctl(VIDEO_DEVICE, LCD_IOC_DISPLAY_OFF, 0);
lcdIoctl(VIDEO_DEVICE, LCD_IOC_LCD_DISABLE, 0);
  //  lcdClose();
Set_EBILED(0x00);
sysPrintf("\nLCD test finish!\n");
}

w90p710开发版LCD问题求助，请大侠帮忙

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