It digitizes and send 2 pixels to the local line RAM buffer, then 2 pixels are sent to the SDRAM framebuffer. I can only skip 2 pixels and not 1. Sounds strange but fpga works like a hardware, doingt things on the clock tick and things run in parallel.
Yesterday I did some tests, skipping every 16h or 32th set of 2 pixels. Although I get borders, the image looks pixelated.
Ah it digitizes 2 pixels because the SDRAM is 16-bit data line and I need to use the maximun bandwith. trying to use one pixel discarding the rest and I don't have time to do the job.
without reboot 