Restart the VI for be new Tx params?

Hello
I am new to the use of USRPs and have very little overall experience with Labview. I'm currently implementing frequency-hopping by the example of the transmitter of package USRP. I converted most of the transmitter to the constants options since I'm mainly interested in the frequency of change in appearance and included a button to change the frequency. The problem is that I need to stop and restart the VI for the USRP starts the frequency. I thought that there must be a way to reset the VI whenever changes frequency without having to manually stop/run, but so far I have failed to find it. Is there a way?

Hey cynop,

Thank you attach your VI.  The first property node that you have inserted, you don't need.  You can wire the frequency of your structure to deal directly at the entrance of carrier frequency of the niUSRP configuration Signal.vi.  The property node that is inside the loop, this is what you need to change the frequency on the fly.  When you update the control of carrier frequency on your façade, the frequency of the carrier of your USRP updates also.  One thing to note is that the indicator of frequency forced on the front panel will not update.  You can shoot on the frequency of the carrier under pressure inside the loop of this indicator to update.  I do not recommend to do it right.  The amount of time it takes the driver to query the device for frequency can be enough time to cause a buffer overflow error.

Tags: NI Products

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