PXI 5122. need to set trigger for rfid measurement

[nearxos]

hello. i am trying to do a measurement on a rfid signal.

and i would like to know how i can set a trigger to acquire the data from the rfid tag when it response to the reader.

the rfid tag is connected to the pxi 5122. software that is used is LabWindows/CVI and NI-DAQmx.

regards

[Jake_G]

The 5122 is not really supported under the DAQmx API.  The NI High-Speed Digitizers have their own IVI-compliant API called NI-SCOPE.  You can download the driver here:

http://search.ni.com/nisearch/app/main/p/bot/no/ap/tech/lang/en/pg/1/sn/catnav:du,ssnav:sup/q/scope/

Also, it should have come on CDs packaged with your hardware.

There is an NI-SCOPE example, called ConfiguredAcquisition, that demonstrates exactly what you want to do.  NI-SCOPE also contains comprehensive documentation for the 5122, from both a hardware and software perspective, which you will not find in the DAQmx API.

[nearxos]

with this example i will be able to export my data in some file format so i can process them in MatLab or any other program?

[Jake_G]

NI-Scope is the driver that would be used in the programming environment, such as LabVIEW or in your case LabWindows/CVI.  Those environments would handle the File I/O.

Typically, the data should be formatted in a TDMS or TDM file format, but other formats such as ASCII are supported. 

Here is a link to a TDM example:

MATLAB®-TDM-Example User Guide