On 06/17/2012 05:47 PM, Rob Clarke wrote: > I disassembled large chunks of the 264 kernal last year when I built my > diagnostic tool, and I'm pretty confident the kernal doesn't read it, > but I do, simply to check it's operation. :-) Your software doesn't count when it comes to replacing the 6529 with a TTL. :) > I've also had a couple of dead ones, but that's out of 20 boards or so > and one of them I blew up myself. The dead ones on the user port of the keyboard port? My idea is for the keyboard port only, the user port needs R/W capability. That will need at least 3 TTLs (74LS574 + 74LS244 + 74LS139 or so) plus some OC drivers. Gerrit Message was sent through the cbm-hackers mailing listReceived on 2012-06-17 17:00:05
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