Re: [Linux-gpib-general] Using Linux-GPIB in raw mode to log GPIB Data?

[dave p. <dpe...@gm...>]

Depending on how deep and fast you need to go an inexpensive usb logic
analyser could do the trick. On linux I use an LA2016 analyser from
qdkingst.com < $150  for gpib protocol debugging which has a nice qt based
interface.

On Wed, 23 Feb 2022 at 07:48, Anders Gustafsson <And...@pe...>
wrote:

> OK. Yes. I know about the NI Analyser, but I have yet been unable to find
> out what memory depth it supports. I
> know that some chips have a passthrough register that lets you sample the
> bus, but then again could you just
> as easily use the parallell port, but the problem there is reading it fast
> enough.
>
> --
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>
> Anders Gustafsson, ingenjör
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>
> >>> Frank Mori Hess <fm...@gm...> 2022-02-22 21:12 >>>
> Linux-gpib doesn't support bus analyzer features.  The NI gpib-usb-hs+
> has bus analyzer features but I never bothered to reverse engineer how
> the protocol works.  Most gpib chips (nec7210 etc) do not allow you to
> capture every command byte.
>
> On Thu, Feb 17, 2022 at 5:16 AM Anders Gustafsson
> <And...@pe...> wrote:
> >
> > I just thought I'd ask here for pointers. I have downloaded Linux-GPIB
> and spelunked around in the code.
> >
> > What I would like to do is to capture individual bytes and store them in
> a file. I need this to verify an
> > application. That is I would like for the card to be listening to all
> traffic and just grab the bytes,
> > regardless of addressing and whether ATN is asserted or not.
> >
> > What would be the best way to go about this? Can it be done through an
> IOCTL call?
> >
> > --
> > Med vänlig hälsning
> >
> > Anders Gustafsson, ingenjör
> > and...@pe...  |  Support +358 18 12060  |  Direkt +358 9
> 315 45 121  |  Mobil +358 40506
> 7099
> >
> > Pedago interaktiv ab, Nygatan 7 B , AX-22100 MARIEHAMN, ÅLAND, FINLAND
> >
> >
> >
> >
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>
>
> --
> Frank
>
>
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