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Subject: synchronizing multiple daq boards
Date: Fri, 25 Jul 2008 04:37:02 +0000 (UTC)
Organization: University of California Berkeley
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I am trying to synchronize two National Instruments daq
boards (NI DAQPad-6251) without success. I tried using
Solution 1-196NJ from the Mathworks solutions lists, but it
doesn't work. I cannot use a HW trigger (I am collecting
pre-trigger data) and performing set(ai,'ClockSource',
'External'); is not a valid option for NI boards. If I try
to use another option, e.g., ExternalSampleCtrl, the command
can be performed, but the data do not seem to be logged
(i.e., getdata does not retrieve data from one of the two
boards). 

I'd welcome some new suggestions!