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Old 2nd Nov 2019, 5:27 pm   #260
JohnBHanson
Heptode
 
Join Date: Aug 2009
Location: Worthing, Sussex, UK.
Posts: 661
Default Re: Gemini 80-Bus System

Just a thought when activating sel you need to have one of the data lines active to indicate the address on the scsi bus you are selecting.

Typically for the xebec card this will be D0 (eg scsi address 0) by outputting 0feh to port 0e6h
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