RE: About the interface LabCA problem that Matlab can't read image datafrom areaDetector

["Mark Rivers" <rivers@cars.uchicago.edu>]

Hi,

I have not used LabCA but from reading the documentation I think it uses the native data type for Channel Access and then it converts to double in Matlab.

There are 2 things I can think of.  First make sure that EPICS_CA_MAX_ARRAY_BYTES is set to a value a little larger than the maximum array size on both the IOC server machine and the Matlab client machine.

If that does not fix it then you may need to increase the LabCA timeout

Mark


-----Original Message-----
From: tech-talk-bounces@aps.anl.gov on behalf of ?
Sent: Sat 12/10/2011 6:14 AM
To: tech-talk@aps.anl.gov
Subject: About the interface LabCA problem that Matlab can't read image datafrom  areaDetector
 
Hi everbody
   I used procilica camera to read image data in EPICS. And use LabCA as interface to link Matlab and areaDetector based in EPICS. So I met this problem. Maybe the Channel Access interface only supports reading arrays as doubles (64-bit floating points), but the Prosilica is normally sending 8-bit data. Thus when I use Matlab to read image datas, Matlab would shut up automatically. Or that is the other question? Does anyone met this question? And how to solve it ?
    Thank you !
                                                                                                                                                                             Peng