Hello,
I am trying to use the "old" gnuradio python programs in a USRP2
daughterboard. I am facing the "unable to find USRP [0]" problem. I know
that questions regarding this problem have appeared before. However, I am
still posting my problem since it is probably occurring due to the
compatibility issues between "UHD" and "Non-UHD" image.
At first, I used to image the usrp2 with "gnuradio-3.3.0" image and run
benchmark codes. It ran fine. Now, the authorities in my laboratory are
using UHD compatible SD cards to run codes in USRP2. USRP2 has been imaged
with UHD_003_002_001 image. Using this image, when I log in to the node, I
can go to the gnuradio folder by giving the following command:
*cd gnuradio-uhd/gnuradio/*
Thereafter, I give the following commands:
*ifconfig eth2 192.168.10.1*
*ifconfig eth2 up*
*
*
*find_usrps*
However, it says "No USRP found" (but I know that the daughter-boards are
properly connected).
I at first thought that the problem could be solved by uninstalling and then
re-building gnuradio. Therefore, inside the gnuradio directory, I gave the
following commands:
*
sudo make uninstall
git clean -d -x -f
./bootstrap
./configure
make make check
sudo make install
*
*ifconfig eth2 up*
*root@node1-1:~/git/uhd# ifconfig eth2 192.168.10.1*
However, even this did not solve my problem. That means, when I type
find_usrps, it still says:
*ethernet:write_packet: send: Network is down*
*No USRP2 found.*
As a result, when I try to run the benchmark_rx.py and benchmark_tx.py
programs of the python/digital folder, it says:
*usrp: failed to find usrp[0]*
*Traceback (most recent call last):*
* File "./benchmark_rx.py", line 112, in *
*main()*
* File "./benchmark_rx.py", line 101, in main*
*tb = my_top_block(demods[options.modulation], rx_callback, options)*
* File "./benchmark_rx.py", line 45, in __init__*
*self.rxpath = usrp_receive_path.usrp_receive_path(demodulator,
rx_callback, options) *
* File
"/root/gnuradio-uhd/gnuradio/gnuradio-examples/python/digital/usrp_receive_path.py",
line 65, in __init__*
*self._setup_usrp_source(options)*
* File
"/root/gnuradio-uhd/gnuradio/gnuradio-examples/python/digital/usrp_receive_path.py",
line 76, in _setup_usrp_source*
*self.u = usrp_options.create_usrp_source(options)*
* File "/usr/local/lib/python2.6/dist-packages/gnuradio/usrp_options.py",
line 88, in create_usrp_source*
*gain=options.rx_gain,*
* File
"/usr/local/lib/python2.6/dist-packages/gnuradio/blks2impl/generic_usrp.py",
line 138, in __init__*
*_generic_usrp_base.__init__(self, **kwargs)*
* File
"/usr/local/lib/python2.6/dist-packages/gnuradio/blks2impl/generic_usrp.py",
line 63, in __init__*
*except: raise Exception, 'Failed to automatically setup a usrp device.'
*
*Exception: Failed to automatically setup a usrp device.*
*
*
I don't know how to solve this problem. Your help will be very very
appreciated.
Thanks,
Nazmul
--
Muhammad Nazmul Islam
Graduate Student
Electrical & Computer Engineering
Wireless Information & Networking Laboratory
Rutgers, USA.
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