On 27/01/12 03:00 PM, Andrew Davis wrote:
Type " uhd_find_devices " into console, then
" uhd_usrp_probe " then give us the results, and the code for the
program you're trying to run.
On Fri, Jan 27, 2012 at 9:39 AM, shashank
gaur <address@hidden>
wrote:
Hello
I am simply trying to build a transmitter and receiver for bpsk
modulation and demodulation using mpsk receiver at receiving end. I am
using USRP1 (Flex900 Daughter boards))with Gnuradio Companion 3.5.0rc0
on Ubuntu 10.10.
When I run either (trransmitter or receiver) of any grc applications
first the grc executes it successfully and when I run other the grc
gives following error.
linux; GNU C++ version 4.4.5; Boost_104200; UHD_003.003.001-8ff8f20
Traceback (most recent call last):
File "/home/sunny/Examples/top_block.py", line 105, in <module>
tb = top_block()
File "/home/sunny/Examples/top_block.py", line 40, in __init__
num_channels=1,
File
"/usr/local/lib/python2.6/dist-packages/gnuradio/uhd/__init__.py", line
93, in constructor_interceptor
return old_constructor(*args, **kwargs)
File
"/usr/local/lib/python2.6/dist-packages/gnuradio/uhd/uhd_swig.py", line
2003, in usrp_sink
return _uhd_swig.usrp_sink(*args, **kwargs)
RuntimeError: LookupError: KeyError: No devices found for ----->
Device Address:
serial: 4d9de875
I think it has something to do with USRP UHD Source/Sink block
parameters.
Either the grc is not able to recognize the daughter board or there is
problem with hardware. may be I am wrong.
Please help me to recognize the error.
Thank you very much for your time
Shashank Gaur
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Just so we're clear here. If you're trying to run your RX and TX as
two separate processes, against the
same USRP1, that won't work. You'll need to have two independant
USRP1s, or collapse your RX and
TX into a single combined program--only one process can have a
"handle" against each USRP1 at a time.
--
Principal Investigator
Shirleys Bay Radio Astronomy Consortium
http://www.sbrac.org
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