Honored Contributor
Honored ContributorI'm not sure you need two files. Every image will need to be driven to the display with the appropriate vertical & horizontal sync control. This timing control is more likely to come directly from the control logic in your FPGA.
If you're only trying to display a simple colour bars image on screen then I'd suggest you don't even need an SD card to store it. Assuming that is what you intend, and you know the size of the image you're trying to deliver (e.g. VGA), then you can create a colour bars screen entirely in the FPGA. A small state machine or counter is used to deliver the correct number of pixels before changing colour. Vertical and horizontal sync signals will drop out from the same controlling logic. You will only need the storage if you're trying to store an image, rather than a regular pattern. Regards, Alex
