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Re: [Discuss-gnuradio] Dream (for Digital Radio Mondial) transmit FIFOs
From: |
Martin Dvh |
Subject: |
Re: [Discuss-gnuradio] Dream (for Digital Radio Mondial) transmit FIFOs |
Date: |
Wed, 10 May 2006 22:10:54 +0200 |
User-agent: |
Debian Thunderbird 1.0.2 (X11/20051002) |
Brett L Trotter wrote:
> Some very generous folks on this list have pointed me towards how to do
> a DRM receiver with the USRP and Dream via FIFO's and a nifty little
> piece of python code. Unfortunately, I live smack dab in the middle of
> the US with nothing but a random wire antenna. The Dream code lacks the
> ability to write to a fifo/file instead of /dev/dsp.
Have you tried making /dev/dsp a fifo
(It's ugly but might work)
mv /dev/dsp /dev/realdsp
mkfifo /dev/dsp
do some drm testing
You will get errors about not being able to set samplerate and such.
rm /dev/dsp
mv /dev/realdsp /dev/dsp
>
> My goal (for testing) is to run DRM in transmit mode over the LFTX board
> and then receive it on the LFRX with a short patch cable, then later
> move up to an antenna for some short range tests in a Faraday cage.
>
> Has anyone tackled this problem (on linux) before? Is there a nifty way
> to be able to let drm -t suck in from the soundcard as usual, but output
> to a fifo and then have some python code dump that to the usrp? I think
> I've got the listening end accounted for thanks to you folks.
>
> Any help would be appreciated. I look forward to the code you are
> working on for DAB/DRM.
>
> Thanks in advance!
>
>
>
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