LSI11 CPU Microm

Douglas Taylor dj.taylor4 at comcast.net
Sat Mar 24 14:31:32 CDT 2018


I was trying to put together a minimal PDP-11/03 using a quad width 
M7264 CPU and got nothing, no ODT prompt.  I'm not sure the board is 
working.

Searching the internet I came across this page which described a M7264 
CPU board with a 'bad' MICROM

http://www.datormuseum.se/computers/digital-equipment-corporation/qbus

Quoting the page; "Using a logic analyser showed that the MICROM without 
label is not behaving well."

Anyone know how a logic analyser would be used to determine this?  Other 
hints to debug this board?

Doug



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