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View Full Version : Looking for gentle introduction to "Universal 6502 RAM and ROM expansion"



1980s_john
June 1st, 2009, 11:53 PM
Hi,

I've read a few pages on this board:

http://freenet-homepage.de/x1541/hardware/index.html

such as this one:

http://www.cbmhardware.de/cbmpet/romram.php

and it looks like a very useful piece of hardware. Is there an idiot's guide available please, for example a step-by-step guide to programming the flash ROM, or configuring the GAL (which I understand controls the memory map - but I could be wrong) I would prefer a Wiki page (and although I suggested it the VCF wiki doesn't seem to be popular - yet!)

Also, although this board is mainly seen used with Commodores, is it also applicable to say Apple IIs and Acorn BBC computers, as they share the 6502?

Lastly, any links to a PCB supplier would be appreciated.

Thanks,
John