From: Tonko A. Ljubicic (tonko_at_bnl.gov)
Date: Fri Mar 14 2003 - 13:39:08 EST
On Fri, 14 Mar 2003, Frank Geurts wrote:
>
> dear tof experts -- i analyzed the log file of the test run this
> morning. Everything looks just fine and the pedAsPhys run nicely process
> ~9600 tokens filling our localmon data files. But, all of a sudden we
> are not getting any LAMs generate by the LAMG anymore. Assuming the LAMG
> works properly (it does so for the first few 1000s of events) and
> responses to EVENT this typically means that the local logic is not
> pulsed anymore by the TCD.
>
> Along the same line I see the Bira generate LAMs but when teh Bira tries
> to read out the word it only reads 0s (for token, daqcmd and trg),
> although strangly enough the unused part (remember: the bira provides us
> with a bigger word than the TCD "delivers") remains to be 0xF ...
>
> While receiving all these empty words from the TCD the local DAQ busy
> remains CLEARED ... the tofpdaq software sees no reason to go busy
> because there's no (pulsed) data available. So, the fact the TCD reports
> 100% back to STAR DAQ does not make sense. During the first 9000 events
> this TOF busy (reported by the TCD) starts at about 40% and climbs up to
> some ~80%.
>
> I suspect the TCD has a problem. Does anyone know of any changes that
> have been made to it recently?
Lot's of activity surrounding the TCD crate during the last days
(especially during the Wed access...)...
-- Tonko
-- Tonko (Ante) Ljubicic Email: tonko_at_bnl.gov Bldg. 510A Tel: +1-631-344-7346 Brookhaven National Lab., P.O. Box 5000 Fax: +1-631-344-4206 Upton, NY, 11973
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