[Techtoolslist] RASTER: FW: Using 8080 pod on Midway 8080 boards (Space Invaders)

[John Robertson]

David Shoemaker wrote:

> What I am trying to figure out is are both my pods bad (which I doubt as two

> are behaving the same way) or is my 9010.

>   


If you are wondering if the base (9010/9100) affects the Run UUT command 
the answer is no. When the pod is in the RUN UUT mode it is entirely 
independent from the base - other than it can be over-ridden with a 
command - it does not talk to the base at all. This is covered somewhere 
in the manuals... Some of the manuals are searchable - look up RUN UUT 
and see what is written, pretty sure I've remembered it correctly. All 
the base does is tell the CPU where the Reset Vector is, after that the 
pod is on it's own.

John :-#)#

> -----Original Message-----

> From: prvs=1763d5e072=ayeckley at sierralobo.com

> [mailto:prvs=1763d5e072=ayeckley at sierralobo.com] On Behalf Of Alex Yeckley

> Sent: Wednesday, February 20, 2013 4:15 AM

> To: 'David Shoemaker'; 'Technical Tools Mail List'; jrr at flippers.com;

> rasterlist at vectorlist.org

> Subject: RE: [Techtoolslist] RASTER: FW: Using 8080 pod on Midway 8080

> boards (Space Invaders)

>

>   

>> Do your pods have the twisted cable or the straight?  Both mine have 

>> the straight.

>>     

>

> Our 8080 pods have the OEM twisted cables.  Our 6502 pods (re: Clay's

> Tempest question) come in both twisted and the flat cables.  I'm assuming

> the flat cable is a non-factory replacement item, but could be totally wrong

> about that.  The 6502 pod that failed just happened to have had a flat cable

> but I'm confident the drive problem was unrelated; we found one specific

> driver output that wasn't going sufficiently high once plugged into a "real"

> target board.  It wasn't a general malaise of the address lines like you

> might expect from transmission line losses or higher EMI susceptibility due

> to the flat cable if that's what you are wondering.

>

>   

>> Are you using a 9010 or a 9100 to drive the pod?

>>     

>

> Both...

>

> Alex

> ----

> ayeckley at elektronforge.com

> www.elektronforge.com 

>

>

>

>

>   



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