I am using LTDC for interfacing with a TFT LCD. The LCD is connected with 18 bit (RGB666) interface. I have selected the pixel format as RGB565, and I am using a frame buffer stored in the internal SRAM. The frame buffer has been populated with 16 bit RGB values. The problem is, I can only see the output when I enable the CLUT and populate the CLUT with RGB values. Otherwise, if CLUT is not enabled, I cannot see the output. As far as I know, CLUT is used in L8 pixel format, but for RGB565 CLUT is not used. I am confused about this situation. Any idea what may be happening here?
