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Re: [Discuss-gnuradio] USRP connection failure

From: Josh Blum
Subject: Re: [Discuss-gnuradio] USRP connection failure
Date: Sun, 14 Nov 2010 19:24:01 -0800
User-agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv: Gecko/20101027 Thunderbird/3.1.6

Did you setup the udev permissions on your system? -Josh

On 11/14/2010 07:13 PM, Songsong Gee wrote:
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

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

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")
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


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

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