Re: [Linux-gpib-general] Fwd: Fwd: Agilent 82350b can't recover from read timeout?

[Dirk N. <dir...@gm...>]

Hi Frank,

Yes, disabling TCS works perfectly, as you suggested.
Do you think that's the correct fix for this? Or should we aim for
something like a read of DIR register just before every TCA?

Regards,

Dirk



On Thu, Aug 1, 2019 at 3:41 AM Frank Mori Hess <fm...@gm...> wrote:

> On Wed, Jul 31, 2019 at 8:08 PM Dirk Niggemann <dir...@gm...>
> wrote:
> > I thought the issue was directly related to the particular device
> because i originally triggered the issue by sending an invalid command to
> the board.
> > You don't actually need to send anything- just reading from the device
> without sending anything is sufficient,
> >
>
> Yeah, attempting a read that fails will leave the board out of the
> ANRS state, causing tcs to fail.  Try modifying tms9914_aux.c by
> changing tms9914_take_control so that it immediately returns
> -ETIMEDOUT if "synchronous" is true.   So basically, you want to make
> sure it never writes AUX_TCS to the  AUXCR register.
>
>
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