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Re: [Discuss-gnuradio] problem with flowgraph
From: |
Eric Blossom |
Subject: |
Re: [Discuss-gnuradio] problem with flowgraph |
Date: |
Wed, 29 Jul 2009 10:59:57 -0700 |
User-agent: |
Mutt/1.5.18 (2008-05-17) |
On Wed, Jul 29, 2009 at 11:46:12AM -0400, Sriram Krishnan wrote:
> Hello,
> I am working on a small application which is supposed to receive/send
> data packets(i have two usrp nodes) and sense spectrum for any energy
> that may be present.
>
> I am using benchmark_rx/tx.py for the same. I have modified the
> receive_path.py in order to accomodate the spectrum sensing ability
> (have used code bits from usrp_spectrum_sense.py) . Hence ,on the
> receive side, I have a couple of flow graphs branching out of the usrp
> source instance.
>
> I am able to sense the spectrum appropriately but the problem is that
> the data packet transfer between the nodes is deteriorating
> significantly.
> Further, if I comment out the spectrum sense branch, the data packets
> are exchanged very well.
> Can somebody help me figure out why this is happening.
Are you getting an uU's or uO's? If so, you're running out of CPU
cycles.
Eric