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
_______________________________________________
Discuss-gnuradio mailing list
Discuss-gnuradio@gnu.org
https://lists.gnu.org/mailman/listinfo/discuss-gnuradio
