niRFSA analog trigger

[Morellio]

Hi everyone,

I'm trying to get a simple trigger working on the voltage ramp of a differential triangle waveform with a niRFSA .dll with at PXIe-1075 and have tried several variations of settings using both IQ power edge trigger level/slope as well as the device specific 5644R and 5645R->Ref->Analog Edge triggers in LV 11.0.1.

None seem to be working. Here's a screencap of the last config I tried. The rest of the code pulls out I and Q, and calculates DNL/INL, and it's simply too massive to post. Any advice would be appreciated!

[Marcus_M]

Hello Morellio,

What type of acquisition are you doing?  Are you doing an IQ acquisition or spectrum acquisition?  Have you tried including the "niRFSA Configure Trigger VI" in your code?  You can use this VI to specify an IQ Power Edge Ref Trigger that is based off of the level and slope of your signal.  Do you have a screenshot of the signal you are acquiring? 

Regards,

Marcus M.

Application Engineer

National Instruments

[Morellio]

Hi Marcus.

I'm doing an IQ acquisition, and eventually found the niRFSA Configure Trigger VI and did exactly what you describe. After some further investigation, I determined the rfsa version I was using was not the latest. Updating now, hopefully that fixes the issue!

Thanks for the response Marcus.