not able to write the data through data acquisition

Hello

In fact, I need to send a code word (text file) from the program matlab through my data acquisition (OR-USB-6215). my program (transmitter.vi [case structure: page2]) attached below has a problem to do the task. whenever I run the program it gives me an error like

Error-200479 occurred at DAQmx start Task.vi:2

Possible reasons:

Measurements: Specified Operation cannot be performed during execution of the task.

Task name: _unnamedTask<84>

At the moment I don't see output in my oscilloscope. But, if I highlight my performance I observe my samples on the oscilloscope with the following error message

200288 error has occurred in the DAQmx write (analog 1-d 1Chan NSamp DBL) .vi:3
Possible reasons:

Measurements: Attempted to write a sample beyond the final sample generated. The build is stopped, so the sample specified by the combination of the position and the offset is never available.

Hi Raja,

What I did is I moved the 'write DAQmx' outside the while loop. That made the VI in this case is read the file and passing it to a table, and then this table is formatted a waveform to be written to the data acquisition device.

With respect to the way in which the data is read, I don't change anything, it was based on your original code. A good way to know if you write the correct data is to check the chart view in VI.

So the question is, is the graphic display showing the good waveform?

Best regards

Faris

Tags: NI Hardware

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