In '98 I posted the following:
========================================= Richard Erlacher Sep 8 1998, 3:00 am Newsgroups: comp.arch.embedded Date: 1998/09/08 Subject: 68HC11 EVB Schematics, etc.
I have, after 10+ years, found that I've misplaced or lost my schematics for the ORIGINAL (1985) 68HC11 EVB . . . you know . . . the one they once sold for $68.11 to those willing to experiment with it. My main interest is in obtaining the pinout for the 60-pin (?) connector at one end, since that's where all the useable signals are presented.
If someone has this information and is willing to share it, I'd be very pleased.
The schematic is also of interest, even if I am able to get the connector pin definitions, though.
Well, because I was never able to find a copy of the "original" schematic, I'm still at a loss ... particularly with respect to that original connector, which, seemingly, was changed in later revisions.
The way to recognize this board version is by counting the 28-pin DIP sockets. My old board has two of them, at U3 and U4. Since I'll probably need to fiddle with the board some in order to modify its resources, and since I'll want to use the signals on the 60-pin P1, a scan of the schematic would be really helpful, just in case someone happens to have it. Back in '98, I got a number of pointers to later versions, but, alas, those were not useable.
I'd be thankful to have this information.