From: W.J. Llope (llope_at_physics.rice.edu)
Date: Fri Jan 31 2003 - 21:11:05 EST
On Fri, 31 Jan 2003, Frank Geurts wrote:
> that is not very good news ... DMA errors can have very many reasons.
> The most trivial one is that there was no data that needed to digitized.
> Any more diagnostics (line#, crate, etc.)?
> Did you look at the localmon *after* this error occurred? Typically the
> data will be zeroed when a DMA error occurs. Also, we will only see such
> a notice once; after which these errors are suppressed. Did they contact
> us when it happened?
as i said, they told me on the phone... i didn't get a chance to look at
localmon data after the error yet...
>
> What I will do is restarting te tofpdaq, just to make sure everything is
> reset/reinitialized again
>
> -frank
>
>
>
>
>
>
>
> W.J. Llope wrote:
> > see shift log - it worked and the ped data looks o.k......
> >
> > i called the CR after this run and they noted they saw
> > some warning message like "tof2, DMA error"
> >
> > frank could you remind me what those are?
> > thanks
> >
> >
>
>
--
_________________________________________________________
W.J. Llope, Ph.D. Res. Assoc. Professor
http://wjllope.rice.edu/default.html
llope_at_physics.rice.edu
T.W. Bonner Nuclear Lab.
Rice University, MS-315
6100 S. Main phone: 713-348-4741
Houston, TX 77005-1892 fax: 713-348-5215
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