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Counter Output NI sample code not working..




I tried to run a sample program given in the following directory,


\National Instruments\NI-DAQ\Examples\DAQmx ANSI C\Counter\Generate Pulse\Dig Pulse Train-Cont-Buff-Implicit,


which is a buffered pulse output program with pre-determined duty ratios.

However, an error says that the counter writing function cannot be started before the task is started.


I am using USB-6281 M-series DAQ. Is this sample program not suitable to my device?

How can I then use such pre-determined duty arrays or real-time duty updates?


I am really looking forward to hearing from you..


Thank you.


Byeong-uk, Im.


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