Re: [Discuss-gnuradio] Tx and Rx on USRP simultaneously, device already claimed

[Mark Wagner]

Yeah, here's a basic example of the flowgraph 

On Mon, Oct 7, 2019 at 11:17 AM Marcus D Leech <address@hidden> wrote:

 Could you share a minimal flow graph that displays the issue?

Sent from my iPhone

> On Oct 7, 2019, at 2:08 PM, Mark Wagner <address@hidden> wrote:
>
> Hey everyone,
>
> I'm trying to transmit from the TX/RX port of a USRP while receiving from RX2 but I'm getting a 'device already claimed' error message. Here are some details:
>
> My USRP sink block uses multiple USRP addresses, i.e.
>
> "addr0=192.168.1.2,addr1=192.168.2.2,addr3=192.168.3.2,..."
>
> and each address goes to a different USRP in an array. I want to transmit a calibration tone across the array from the TX channel of the first USRP (addr0), but when I add a USRP source block it gives a 'device already claimed' message. This doesn't happen when I make individual USRP sink blocks for each USRP in the array.
>
> Unfortunately if I separate my devices into several USRP sink blocks I can't guarantee the devices will be synched to the PPS. Is there a workaround for this?
>
> -Mark
>
> --
> Mark Wagner
> University of California San Diego
> Electrical and Computer Engineering
> 
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--

Mark Wagner

University of California San Diego

Electrical and Computer Engineering
 

example.grc
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