Re: [Discuss-gnuradio] Using two daughter boards in USRP1.

[Josh Blum]

On 09/20/2012 09:46 AM, Sajjad Safdar wrote:
> Hello, I am trying to use two daughter boards in one USRP1. I have
> RFX400 on one side A and TVRX on side B. When i try to use two
> seprate terminals to test the daughter cards in such a way that
> RFX400 is transmitting and TVRX is recieving on the same USRP1 device
> using uhd_fft and benchmark_tx.py for sending data, but this does not
> work. when i run uhd_fft the scanning works but when i try to run
> benchmark_tx in another window, it gives some error tha can not find
> usrp device, how can i make it possible to work with both cards on
> the same device rather than using two different devices.
> 
> 

You need to use the source and sink block within the same process. Since
uhd_fft and benchmark* are two different apps, you may have better luck
re-creating those apps within one GRC flowgraph.

-josh