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<== Date ==> <== Thread ==>

Subject: Re: Waveform read problems
From: Eric Norum <wenorum@lbl.gov>
To: apwagner@u.washington.edu
Cc: "tech-talk@aps.anl.gov tech-talk" <tech-talk@aps.anl.gov>
Date: Mon, 30 Jul 2012 10:26:56 -0700
I put together a simple StreamDevice/ASYN application and a small python script to provide a dummy 'instrument'.   The instrument provides 30000 values on demand. 
Things seem to work as expected.  Here's the output from the final command of the startup script:

dbpr "wchk:1:Wave"
ASG:                BUSY: 0             DESC: Read a long waveform              
DISA: 0             DISP: 0             DISV: 1             NAME: wchk:1:Wave   
NORD: 30000         SEVR: NO_ALARM      STAT: NO_ALARM      TPRO: 0             
VAL: 0x0            

As you can see, the IOC has successfully read 30000 double values from the instrument.
Andrew -- perhaps you can massage the attached application a little to match the commands of your hardware and see if things work for you as well?

Attachment: wchk.tgz
Description: Binary data

-- 
Eric Norum
wenorum@lbl.gov


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