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[Discuss-gnuradio] USRP connection failure

From: Songsong Gee
Subject: [Discuss-gnuradio] USRP connection failure
Date: Mon, 15 Nov 2010 12:13:51 +0900

Now I'm trying to test a very simple TX/RX examples
I have a USRP1 and basic TX/RX board

GNUradio flow graph is like a link here http://picasaweb.google.com/gee.songsong/Study#5539608314025540050

When I run it by pressing F6, it is terminated with an error message like below:

Generating: "/home/songsong/Desktop/top_block.py"
Executing: "/home/songsong/Desktop/top_block.py"

usrp: failed to find usrp[0]
Traceback (most recent call last):
  File "/home/songsong/Desktop/top_block.py", line 84, in <module>
    tb = top_block()
  File "/home/songsong/Desktop/top_block.py", line 34, in __init__
    self.usrp_simple_sink_x_0 = grc_usrp.simple_sink_c(which=0, side="A")
  File "/usr/local/lib/python2.6/dist-packages/grc_gnuradio/usrp/simple_usrp.py", line 91, in __init__
    self._make_usrp(which=which, nchan=1)
  File "/usr/local/lib/python2.6/dist-packages/grc_gnuradio/usrp/common.py", line 28, in _make_usrp
    def _make_usrp(self, *args, **kwargs): self._u = self._usrp_args[0](*args, **kwargs)
  File "/usr/local/lib/python2.6/dist-packages/gnuradio/usrp/usrp_swig.py", line 2475, in sink_c
    return _usrp_swig.sink_c(*args, **kwargs)
RuntimeError: can't open usrp

>>> Done

I really really cannot find out what am I doing wrong :(

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