On Monday, April 9, 2012, Tom Rondeau wrote:
On Sun, Apr 8, 2012 at 9:59 PM, Abdelrahman Ahmed <address@hidden> wrote:
> 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
Well, it does say right as you start the program:
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!
So what changed for you between last week and this week? Have you
changed code or any installations that we should know about?
Tom