STDC ROM dump

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Mike Loewen

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Feb 19, 2025, 1:59:29 AM2/19/25
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Does anyone have a dump of version 1.27 of the STDC ROM? Mine is at 1.23 and I'd like to open it up to more than 1024 cylinders. I have plenty of 2764s on hand.
STDC-S.jpg

Peter Higgins

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Feb 19, 2025, 10:45:02 AM2/19/25
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Fortunately you have a later version STDC with a 28 pin ROM, which works with a standard 2764 EPROM.

Go to this site, click on the "EPROM" tab, and the bin file for STDC ROM v1.27 can be downloaded from there:

Mike Loewen

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Feb 19, 2025, 3:42:10 PM2/19/25
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   Got it, thanks Peter!
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