Re: [Discuss-gnuradio] Capturing data to file

[Angilberto Muniz Sb]

 John,
 Try this:
 
 ...
 from gnuradio import gru
 ...
 mux = gru.hexint(0xf0f0f0f0)
 ...
 
 It works for me...
 
Angilberto.

> 
> 
> --- jjw <address@hidden> wrote:
> 
> > 
> > Has anybody had any experience using the
> > capture_to_file.py code from KD7LMO? 
> > (http://kd7lmo.net/ground_gnuradio_software.html) 
> I
> > am interested in the
> > functionality to set up an IF frequency and
> > bandwidth and dump the data to a
> > file.  When I have attempted to run the program I
> > have encountered the
> > following error....
> > 
> > address@hidden ~]$ ./capture_to_file.py
> > narrowband_256k_complex.dat
> > 10.7 250 30
> > Capturing  7680000  samples
> > Traceback (most recent call last):
> >   File "./capture_to_file.py", line 67, in ?
> >     main (sys.argv[1:])
> >   File "./capture_to_file.py", line 63, in main
> >     fg = build_graph (filename, IF_freq_hz,
> > decim_rate, samples)
> >   File "./capture_to_file.py", line 38, in
> > build_graph
> >     src = usrp.source_c (0, decim, 1, mux)
> >   File
> >
>
"/home/jjw27370/gr/lib/python2.4/site-packages/gnuradio/usrp.py",
> > line 242, in __init__
> >     fpga_filename, firmware_filename)
> >   File
> >
>
"/home/jjw27370/gr/lib/python2.4/site-packages/gnuradio/usrp1.py",
> > line 1208, in source_c
> >     return _usrp1.source_c(*args)
> > TypeError: in method 'source_c', argument 4 of
> type
> > 'int'
> > 
> > 
> > It seems there is something wrong with the way
> that
> > mux is declared in the
> > capture_to_file.py code (0xf0f0f0f0).  According
> to
> > Dawai Shen's tutorial on
> > USRP
> (http://www.nd.edu/~dshen/GNU/Tutorial/4.html)
> > 0xf0f0f0f0 should be a
> > valid combination to use.  Maybe I am missing some
> > trivial detail or maybe
> > this code was designed for an older version of GNU
> > Radio, but if anybody
> > could shed some light on this issue or maybe knows
> > of a better program for
> > capturing data to a file, it would be helpful.  
> > 
> > Thanks,
> > John
> > --
> > View this message in context:
> >
>
http://www.nabble.com/Capturing-data-to-file-t1325900.html#a3538604
> > Sent from the GnuRadio forum at Nabble.com.
> > 
> > 
> > 
> > _______________________________________________
> > Discuss-gnuradio mailing list
> > address@hidden
> >
>
http://lists.gnu.org/mailman/listinfo/discuss-gnuradio
> > 
> 
> 
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