On May 23, 2015, at 8:24 AM, Mark J. Blair <nf6x at nf6x.net> wrote:
In the middle will be some FPGA to perform any
necessary magic. I've been looking at a prohibitively expensive ($115) one that has
enough dual-port RAM blocks to support a frame buffer.
Are you on the CoCo mailing list? Have you seen the RGB2VGA by Luis Antoniosi (CoCoDemus)?
I know at one point he had been tinkering with making it support composite from the Apple
II. It?s semi open-source, I think there are 2 versions and the latest version is
currently all closed source.
https://sites.google.com/site/tandycocoloco/rgb2vga
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