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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