[parisc-linux] Re: Status SPIFI SCSI

[Derek Engelhaupt]

Good luck trying to find a pinout for the chips on the cards....I can't
even find a block diagram of the cards on the HP internal websites.  As
a sidenote, I was talking to one of my customers this evening that had
dealings with a contractor to HP that was involved in the original
development of the HP-PB devices.  I found an E-mail address for him in
the HP address book and asked him if he would mind us bouncing ideas
off of him.  Waiting to see what he says or if I get a responce.

derek

--- Thibaut VARENE <varenet@esiee.fr> wrote:
> 
> Le mardi, 17 sep 2002, à 20:33 Europe/Paris, Christoph Plattner a
> écrit 
> :
> 
> Hi Christoph,
> > Hello Ryan,
> >
> > I think usinf the logic analyser will not help you on the
> > SCSI bus. You need the logic analyser on the SPIFI chip!!!
> That's not a problem,
> atm we have a 16channels analyser (we can have up to 128 if needed),
> we tried using the HP 2423A SCSI preprocessor, but ours seems b0rken,
> therefore we decided to plug directly onto the scsi board.
> 
> So plugging onto SPIFI chip shouldn't be a pb, as long as we have its
> 
> pinout,
> so that we can isolate signals we're trying to find.
> 
> So if you can provide us with the pin numbers we should plug on,
> that would help a lot ! :)
> >
> > As I already mentioned in another mail, I think, we
> > DO NOT access the real device. As I have mentioned,
> > we only read out 0x0000ff00 at each address and we
> > "write" the SCSI command in an invalid space ! So this
> > is "OK", that the chip do not produce any interrupts !
> >
> > I think, this is a very basic problem of the bus or
> > i/o bus initilization or the Loquix init, or whatever.
> >
> > I do not expect any frame on the SCSI output !
> >
> > Bye
> > Christoph
> >
> >

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