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

Subject: Re: lcaGet maximum readout array size
From: Till Straumann via Tech-talk <tech-talk@aps.anl.gov>
To: "Ha, Kiman" <kha@bnl.gov>, "tech-talk@aps.anl.gov" <tech-talk@aps.anl.gov>
Cc: "Podobedov, Boris" <boris@bnl.gov>, "sebek@slac.stanford.edu" <sebek@slac.stanford.edu>
Date: Wed, 11 Sep 2019 13:54:43 -0700
Did you check/set the infamous EPICS_CA_MAX_ARRAY_BYTES?

On 9/11/19 1:20 PM, Ha, Kiman wrote:

Hi all,

 

I am trying to readout  (180 * 4 PVs) * 1 M point BPM ADC raw data using the lcalab.

But, I found errors at waveform size > (180*4*100K) point.

Any solutions for readout 180*4*1M array size?

 

 

% BPM [180x1]

tmp1=strcat(BPM, 'Ampl:ARaw-I');

tmp2=strcat(BPM, 'Ampl:BRaw-I');

tmp3=strcat(BPM, 'Ampl:CRaw-I');

tmp4=strcat(BPM, 'Ampl:DRaw-I');

 

Reading waveforms...

Error using lcaGet

multi_ezca_get -  ezcaGetWithStatus(): no response in time

 

Error in adcLongWfmRead_1m (line 276)

        allADC = lcaGet([tmp1; tmp2; tmp3; tmp4], WLength);

>> 

 

Thanks,

Kiman



Replies:
RE: lcaGet maximum readout array size Ha, Kiman via Tech-talk
References:
lcaGet maximum readout array size Ha, Kiman via Tech-talk

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