[Coco] 256k upgrade
Bruce W. Calkins
brucewcalkins at charter.net
Tue Feb 2 18:48:13 EST 2010
Well, I do have possession of the upgrade, the docs and the Rainbow
Unfortunately about 98.5% of my hobby stuff is now in storage and my CoCo
stuff is not in front. I'll see what I can do, when I get a Round-Tuit.
Mike, IIRC you are right about it including the 74LS785 SAM. That part
might be harder to find than a Round-Tuit, although the last version of the
CoCo 2 used it.
One Caveat; they provided support for OS-9 Level 1, but no one has yet
figured out what needs correcting for NitrOS9 Level One. Quite simply,
NitrOS9 will not boot.
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