Forum: GNU Radio Unable to find USRP #0

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C879fa69737aa4de321dca312e24194e?d=identicon&s=25 hacper (Guest)
on 2007-07-26 18:32
(Received via mailing list)
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 to bulid
the GNU Radio. However, when I run to build physical setting
for WiFi, I type following commands:

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

some errors occur as follows:

 File "", line 288, in <module>
  File "", line 249, in main
  File "", line 95, in __init__
    self.txpath = transmit_path(self, mod_class, options)
line 61, in __init__
line 110, in _setup_usrp_sink
  File "/usr/local/lib/python2.5/site-packages/gnuradio/", line
209, in __init__
  File "/usr/local/lib/python2.5/site-packages/gnuradio/", line
82, in _ensure_rev2
    v = _look_for_usrp(which)
  File "/usr/local/lib/python2.5/site-packages/gnuradio/", 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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D0072e69d706bb3ca211d33a1b536e2c?d=identicon&s=25 Johnathan Corgan (Guest)
on 2007-07-26 18:40
(Received via mailing list)
hacper wrote:

> I am trying to run seom example codes on USRP. My computer equipes
> USB 1.1.

The USRP requires a USB 2.0 port..

Johnathan Corgan
Corgan Enterprises LLC
03865a12ed91db9d42c450f65c77da56?d=identicon&s=25 Meenaktchi Venkatachalam (Guest)
on 2007-07-26 19:07
(Received via mailing list)
You require USB2.0 and not USB 1.1. USB 1.1 is not supported
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