last week every thing was fine until today when i want to sense the
spectrum i faced this problem
>>./usrp_spectrum_sense.py 1901M 1983M > file.tr
Warning: this is known to have issues on some machines+Python version
combinations to seg fault due to the callback in bin_statitics. If you
figure out why, we'd love to hear about it!
Traceback (most recent call last):
File "./usrp_spectrum_sense.py", line 237, in <module>
tb = my_top_block()
File "./usrp_spectrum_sense.py", line 135, in __init__
num_channels=1)
File "/usr/local/lib/python2.7/
dist-packages/gnuradio/uhd/__init__.py",
line 116, in constructor_interceptor
return old_constructor(*args)
File "/usr/local/lib/python2.7/dist-packages/gnuradio/uhd/uhd_swig.py",
line 2885, in usrp_source
return _uhd_swig.usrp_source(*args)
RuntimeError: LookupError: KeyError: No devices found for ----->
Device Address:
addr: 192.168.10.2
although i am using usrp 1 so i added this args
>>usrp_spectrum_sense.py 1901M 1983M >file.tr --address="type=usrp1"
linux; GNU C++ version 4.6.1; Boost_104601; UHD_003.004.000-24-g8630807c
Warning: this is known to have issues on some machines+Python version
combinations to seg fault due to the callback in bin_statitics. If you
figure out why, we'd love to hear about it!
-- Opening a USRP1 device...
-- Using FPGA clock rate of 64.000000MHz...
Using Volk machine: ssse3_64
gain = 25.75
Segmentation fault
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