Jonathon,

Yes, this error still occurs if I add a copy block between the RX and TX 
streamer blocks.

Best Regards,

Jerrid

From: Jonathon Pendlum <jonathon.pend...@ettus.com>
Sent: Thursday, April 15, 2021 3:20 PM
To: Jerrid Plymale <jerrid.plym...@canyon-us.com>
Cc: USRP-users@lists.ettus.com
Subject: Re: [USRP-users] Using RFNoC RX and TX blocks in one flowgraph that 
interfaces with an X310

Hi Jerrid,

Does the error still happen when you add the copy between the RX / TX streamers?

Jonathon

On Thu, Apr 15, 2021 at 6:01 PM Jerrid Plymale 
<jerrid.plym...@canyon-us.com<mailto:jerrid.plym...@canyon-us.com>> wrote:
Hello All,

I have been running into a problem this week that I was hoping to get some help 
with. I am working on transitioning to using the RFNoC RX and TX blocks in a 
flowgraph to control passthrough of signals in the USRP X310 I am using. 
Attached is an image of the flowgraph that I am trying to get working. I have 
been able to get the RX chain and the TX chain to work individually, but when I 
try to run the flowgraph shown I get the following error from 
gnuradio-companion:

RunTimeError: RFNoCError: RoutingError: 0/Radio#1:0 is neither statically 
connected to 0/DDC#0:0 nor to an SEP!

Any insight to what’s causing this problem and how to solve it would be greatly 
appreciated.

Best Regards,

Jerrid
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