Re: [Discuss-gnuradio] Unable to find USRP #0

[Meenaktchi Venkatachalam]

You require USB2.0 and not USB 1.1. USB 1.1 is not supported

On 7/26/07, hacper <address@hidden> wrote:

Dear all:

I am trying to run seom example codes on USRP. My computer equipes USB 1.1. I use Fedora Core 7 + python 2.5 + gnuradio 3.0.3 to bulid the GNU Radio. I had followed http://gnuradio.org/trac/wiki/BuildGuide to bulid the GNU Radio. However, when I run tunnel.py to build physical setting for WiFi, I type following commands:

python tunnel.py -v -f 2400E6 --bitrate 50k -i 32 -d 16

some errors occur as follows:

File "tunnel.py", line 288, in <module>
   main()
File "tunnel.py", line 249, in main
   options)
File "tunnel.py", line 95, in __init__
   self.txpath = transmit_path(self, mod_class, options)
File "/usr/src/CR/gnuradio-3.0.3/gnuradio-examples/python/digital/transmit_path.py", line 61, in __init__
   self._setup_usrp_sink()
File "/usr/src/CR/gnuradio-3.0.3/gnuradio-examples/python/digital/transmit_path.py", line 110, in _setup_usrp_sink
   fusb_nblocks=self._fusb_nblocks)
File "/usr/local/lib/python2.5/site-packages/gnuradio/usrp.py", line 209, in __init__
   _ensure_rev2(which)
File "/usr/local/lib/python2.5/site-packages/gnuradio/usrp.py", line 82, in _ensure_rev2
   v = _look_for_usrp(which)
File "/usr/local/lib/python2.5/site-packages/gnuradio/usrp.py", line 76, in _look_for_usrp
   raise RuntimeError, "Unable to find USRP #%d" % (which,)
RuntimeError: Unable to find USRP #0

I guess that the usb maybe cannot understand USRP platform.
Could you give me some help?


Best Regard


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