请帮忙教我，谢谢1

joemay

火哥，请问有没有关于void LCD_WriteBMP(uint32_t BmpAddress)这个函数调用的视频或者例程？能够给个信息地址呢使用前是否需要先将图片数组拷贝到内部FLASH中，然后再去调用地址？只有F429核心板的情况下能不能完成调用呢？
请帮忙教我，谢谢

* @brief  Displays a bitmap picture loaded in the internal Flash.
  * @param  BmpAddress: Bmp picture address in the internal Flash.
  * @retval None
  */
void LCD_WriteBMP(uint32_t BmpAddress)
{
  uint32_t index = 0, size = 0, width = 0, height = 0, bit_pixel = 0;
  uint32_t Address;
  uint32_t currentline = 0, linenumber = 0;

  Address = CurrentFrameBuffer;

  /* Read bitmap size */
  size = *(__IO uint16_t *) (BmpAddress + 2);
  size |= (*(__IO uint16_t *) (BmpAddress + 4)) << 16;

  /* Get bitmap data address offset */
  index = *(__IO uint16_t *) (BmpAddress + 10);
  index |= (*(__IO uint16_t *) (BmpAddress + 12)) << 16;

  /* Read bitmap width */
  width = *(uint16_t *) (BmpAddress + 18);
  width |= (*(uint16_t *) (BmpAddress + 20)) << 16;

  /* Read bitmap height */
  height = *(uint16_t *) (BmpAddress + 22);
  height |= (*(uint16_t *) (BmpAddress + 24)) << 16;

  /* Read bit/pixel */
  bit_pixel = *(uint16_t *) (BmpAddress + 28);  

  if (CurrentLayer == LCD_BACKGROUND_LAYER)
  {
    /* reconfigure layer size in accordance with the picture */
    LTDC_LayerSize(LTDC_Layer1, width, height);
    LTDC_ReloadConfig(LTDC_VBReload);

    /* Reconfigure the Layer pixel format in accordance with the picture */   
    if ((bit_pixel/8) == 4)
    {
      LTDC_LayerPixelFormat(LTDC_Layer1, LTDC_Pixelformat_ARGB8888);
      LTDC_ReloadConfig(LTDC_VBReload);
    }
    else if ((bit_pixel/8) == 2)
    {
      LTDC_LayerPixelFormat(LTDC_Layer1, LTDC_Pixelformat_RGB565);
      LTDC_ReloadConfig(LTDC_VBReload);
    }
    else
    {
      LTDC_LayerPixelFormat(LTDC_Layer1, LTDC_Pixelformat_RGB888);
      LTDC_ReloadConfig(LTDC_VBReload);
    }
  }
  else
  {
    /* reconfigure layer size in accordance with the picture */
    LTDC_LayerSize(LTDC_Layer2, width, height);
    LTDC_ReloadConfig(LTDC_VBReload);

    /* Reconfigure the Layer pixel format in accordance with the picture */
    if ((bit_pixel/8) == 4)
    {
      LTDC_LayerPixelFormat(LTDC_Layer2, LTDC_Pixelformat_ARGB8888);
      LTDC_ReloadConfig(LTDC_VBReload);
    }
    else if ((bit_pixel/8) == 2)
    {
      LTDC_LayerPixelFormat(LTDC_Layer2, LTDC_Pixelformat_RGB565);
      LTDC_ReloadConfig(LTDC_VBReload);
    }
    else
    {
      LTDC_LayerPixelFormat(LTDC_Layer2, LTDC_Pixelformat_RGB888);
      LTDC_ReloadConfig(LTDC_VBReload);  
    }
  }

  /* compute the real size of the picture (without the header)) */  
  size = (size - index);

  /* bypass the bitmap header */
  BmpAddress += index;

  /* start copie image from the bottom */
  Address += width*(height-1)*(bit_pixel/8);

  for(index = 0; index < size; index++)
  {
    *(__IO uint8_t*) (Address) = *(__IO uint8_t *)BmpAddress;

    /*jump on next byte */   
    BmpAddress++;
    Address++;
    currentline++;

    if((currentline/(bit_pixel/8)) == width)
    {
      if(linenumber < height)
      {
        linenumber++;
        Address -=(2*width*(bit_pixel/8));
        currentline = 0;
      }
    }
  }
}

flyleaf

可以，总体思想就是读取显存的内容写入到spi flash

joemay

火哥，这个函数是否能调用外部FLASH中的数组？
我的思路
我将一个800*480的24bit图片转为数组后 存到。C文件中,大约5M，刷到外部FLASH中。
通过地址0x68000000+1536*4096 调用数组，void LCD_WriteBMP(uint32_t BmpAddress)实现图片显示
是否可以实现呢？
新手，还请不吝赐教