Re: [Discuss-gnuradio] Full Duplex communication on E100, with separate antenna

Using this flow graph: http://i.imgur.com/K9TaN.png

I get this traceback:

-- Opening USRP-E on /dev/usrp_e0

Traceback (most recent call last):

  File "full_duplex.py", line 60, in <module>

    tb = full_duplex()

  File "full_duplex.py", line 31, in __init__

    num_channels=1,

  File "/usr/lib/python2.6/site-packages/gnuradio/uhd/__init__.py", line 74, in constructor_interceptor

    return old_constructor(*args, **kwargs)

  File "/usr/lib/python2.6/site-packages/gnuradio/uhd/uhd_swig.py", line 2045, in usrp_sink

    return _uhd_swig.usrp_sink(*args, **kwargs)

RuntimeError: EnvironmentError: IOError: Failed to open /dev/usrp_e0

This never occurs when using only one source or sink, but occurs with two, independent of the antennas I specify.

On Thu, Aug 4, 2011 at 13:57, Meyer S. Jacobs <meyermagic@gmail.com> wrote:

Using gnuradio-companion for code generation, with the UHD drivers for
the E100, it still locks up. I can provide my .grc files and generated
python code when I get back to my desk.

-Meyer S. Jacobs