Friday, 15 April 2011

We have colour bars!

Well believe it or not the FPGA testcard generator now generates some colour.
I promise you it has RGB then a grey scale, it is just the angle I took the photo
that makes it look strange.

It took me a while to get it to work because there appears to be a mistake in the
spec I was working from and also Verilog does not seem to like combining a
signed multiply operation and a register bit select operation on the same line.

There are still some timing glitches to work out before I can add all the fancy
stuff like my callsign. The program takes RGB input and converts that into
composite video.

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