Dear all,
I am attempting to recreate the FM receiver in GnuRadio described in wiki:
https://kb.ettus.com/Implementation_of_a_Simple_FM_Receiver_in_GNU_Radio
... duly replacing all WX with QT...
It seems a simple enough example, as seen here:
And I see no errors in making the Python code. But when I attempt to I
get this error:
Executing: '/usr/bin/python2 -u
/home/mercado/workarea-gnuradio/gnuradio/ENTS622/Lab_2_FM_RX.py'
linux; GNU C++ version 5.4.0 20160609; Boost_105800;
UHD_003.009.007-0-g50839059
UHD Error:
USB open failed: insufficient permissions.
See the application notes for your device.
Traceback (most recent call last):
File "/home/mercado/workarea-gnuradio/gnuradio/ENTS622/Lab_2_FM_RX.py",
line 250, in <module>
main()
File "/home/mercado/workarea-gnuradio/gnuradio/ENTS622/Lab_2_FM_RX.py",
line 238, in main
tb = top_block_cls()
File "/home/mercado/workarea-gnuradio/gnuradio/ENTS622/Lab_2_FM_RX.py",
line 80, in __init__
channels=range(1),
File "/usr/local/lib/python2.7/dist-packages/gnuradio/uhd/__init__.py",
line 122, in constructor_interceptor
return old_constructor(*args)
File "/usr/local/lib/python2.7/dist-packages/gnuradio/uhd/uhd_swig.py",
line 2671, in make
return _uhd_swig.usrp_source_make(*args)
RuntimeError: LookupError: KeyError: No devices found for ----->
Empty Device Address
>>> Done
Any suggestions?
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