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Re: [Discuss-gnuradio] FPE with FM Rcvr
From: |
Josh Blum |
Subject: |
Re: [Discuss-gnuradio] FPE with FM Rcvr |
Date: |
Wed, 30 Mar 2011 22:25:42 -0700 |
User-agent: |
Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.9.2.14) Gecko/20110223 Lightning/1.0b2 Thunderbird/3.1.8 |
On 03/30/2011 09:31 PM, Ron Hall wrote:
>
> Working the following issue...any ideas?
>
> System: Ubuntu 10.10, Gnuradio 3.3.0, uhd (Mar 2011), USRP2, TVRX
>
> Using the attached grc model results in a floating point exception:
>
>
(process of elimination)
it looks like its coming from the xlating filter
> It might be a memory issue. An attempt to sample at the 6Mz limit
> with the TVRX (board responds with ~5.88...) results in
> gr_buffer:allocate_buffer: failed to allocate buffer of size 18760,
> which points to an installation issue that make check should have
> handled...a reinstall and closer scrutiny of the output should
> highlight any neglected warnings/errors.
>
>
failed to allocate is an issue introduced by a block that changed that
is used in the fft sink (tom?)
-Josh