Forum: GNU Radio DBSRX Lo Frequency

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F59554dad66070cab7da45ce0937c7c2?d=identicon&s=25 Gregory W Heckler (Guest)
on 2007-02-01 20:20
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Is there a missing class for the DBSRX daughterboard not include in the
CVS repository? There seems to be no way to command the LO frequency
tuning word of the MAX2118 downcoverter chip.
63d6de710dcc83e3c19af98ab6c401d7?d=identicon&s=25 Marcus Leech (Guest)
on 2007-02-01 20:25
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Gregory W Heckler wrote:
> Is there a missing class for the DBSRX daughterboard not include in
> the CVS repository? There seems to be no way to command the LO
> frequency tuning word of the MAX2118 downcoverter chip.
>
>
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> Discuss-gnuradio mailing list
> Discuss-gnuradio@gnu.org
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>
Use the 'tune' method:

r = usrp.tune(self.u, 0, self.subdev, target_freq)

This is from my code in
gr_radio_astronomy/src/python/usrp_ra_receiver.py
F59554dad66070cab7da45ce0937c7c2?d=identicon&s=25 Gregory W Heckler (Guest)
on 2007-02-01 20:36
(Received via mailing list)
I guess this implies there is no C++ native DBSRX support at this time?
Does there exist an ICD to the DBSRX daughterboard that I could write a
C++ driver to?

-Heckler
745d8202ef5a58c1058d0e5395a78f9c?d=identicon&s=25 Eric Blossom (Guest)
on 2007-02-01 21:18
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On Thu, Feb 01, 2007 at 02:35:35PM -0500, Gregory W Heckler wrote:
> I guess this implies there is no C++ native DBSRX support at this time?

This is correct.  It's on the list of things to do, ticket:127.
http://gnuradio.org/trac/ticket/127

> Does there exist an ICD to the DBSRX daughterboard that I could write a
> C++ driver to?

Look at the python code in gr-usrp/src/db_dbs_rx.py and the schematics.

http://gnuradio.org/trac/browser/usrp-hw/trunk/dbs...

Eric
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