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LPC54608 Board cannot display RGB565 image

Question asked by zhixiang zeng on Aug 21, 2017
Latest reply on Aug 25, 2017 by Kerry Zhou

when I use SDK_2.2_LPC54608J512 - copy\boards\lpcxpresso54608\driver_examples\lcdc\lcdc_cursor demo  to display a RGB565 image .in the lcdc_cursor.c  I do these modifies:

1.I define a image array   : unsigned const char image[153600]={.0X29,0X64,0XC9,0X5B,0X8A,......}, 320*240 image ,16bbp565.

2.I define two functions :

void lcd_SetPixel(int x, int y, unsigned int uicolor);//piexl  position and  color
void lcd_DrawBmp (int ix0,int iy0, int iwidth, int iheight, unsigned short *pucBmp);// image position ,size,and  image data

void lcd_SetPixel(int x, int y, unsigned int uicolor)
{
while(1)
{
if((x < LCD_WIDTH) && (y < LCD_HEIGHT))
{
s_frameBufs[y][x] = uicolor & 0xff;
s_frameBufs[y][x+1] = (uint8_t)uicolor >>8;

// s_frameBufs[y][x] = uicolor ;
}
}

}

void lcd_DrawBmp(int ix0,int iy0, int iwidth, int iheight, unsigned short *pucBmp)
{
uint16_t ix, iy;
uint16_t uicolor;

for (iy = iy0; iy < iheight + iy0; iy++)
{
for (ix = ix0; ix < iwidth + ix0; ix = ix+2)
{
uicolor = *pucBmp++;
lcd_SetPixel(ix, iy, uicolor);
}
}

}

 

 

3.I  do not use the APP_FillBuffer function instead of   lcd_DrawBmp (0,0,320,240,(unsigned short *)image)

then  lcdConfig.bpp=kLCDC_16BPP565 instead of 1BPP.

the lcd other configs are the same as the demo.

 

but ,download  this  program ,the TFT lcd do not show image,even nothing.

Original Attachment has been moved to: image.c.zip

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