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AD9361 switching between ext and int LO without reloading driver

Question asked by ahelak on May 20, 2015
Latest reply on Jun 2, 2015 by mhennerich

Hi,

 

Using an AD9361 and an fmcomms5, I'd like to switch between external LO and internal LO from time to time. This works with the "Save Settings" and the ext LO / int LO checkboxes, but I believe that method also reloads the driver, changing a bunch of other driver attributes at the same time.

 

Is it possible to switch between internal and external LO without reloading the driver? For example, if I begin on external LO, I thought maybe if I write the debug traits "adi,external-rx-lo-enable", and "adi,external-tx-lo-enable", toggling them from 1 to 0 would work. If I try to set an internal LO frequency after doing so, however, I end up with wideband noise.

 

Let me know what you think -- thanks,

Adam

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