In message <3.0.3.16.19980115192719.216f8fec@mail.winshop.com.au>, "Bill (WL) Boulton" writes >To the best information resource on the net, > >I've been tossing around the idea of building my own GAL programmer for >16V8s and 20V8s, BUT! It seems that the people who make them (NS & SGS >Thompson) are keeping the programming specs a secret (lots o' money maybe). >I've found bits of info but no where near enough to actually do anything >other than increase curiosity and frustration. > >I don't want to buy someone elses locked up code. I'll do it myself so I >can (fix.modify.expand) it. I've spent my last dollar on apps that were >not as good as they were crached up to be. > >Any help would be greatly appreciated, > >Bill. Lattice (they invented the GAL) gives away development and programming software for their 22V10 ispGAL and other smaller isp CPLD parts on a free CD-ROM. You use a simple in-circuit programming cable connected to the PC printer port. I have a Lattice Starter Kit which includes the cable, software and sample devices. They are quite cheap. Leon -- Leon Heller: leon@lfheller.demon.co.uk http://www.lfheller.demon.co.uk Amateur Radio Callsign G1HSM Tel: +44 (0) 118 947 1424 See http://www.lfheller.demon.co.uk/dds.htm for details of my AD9850 DDS system - schematic and software.