Hi Lefteris,
does the same happen when you just press any key instead of killing the
script?
Greetings,
Marcus
On 05.11.2014 03:40, Eleftherios(Lef) Kampianakis wrote:
> Hello all,
>
> I am facing a strange problem when I am starting my gnuradio script. I keep
> getting the following message.
>
>
> -- Operating over USB 3.
>
> Traceback (most recent call last):
> File "file_sinks.py", line 104, in <module>
> tb = file_sinks()
> File "file_sinks.py", line 47, in __init__
> channels=range(2),
> File
> "/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/gnuradio/uhd/__init__.py",
> line 122, in constructor_interceptor
> return old_constructor(*args)
> File
> "/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/gnuradio/uhd/uhd_swig.py",
> line 1753, in make
> return _uhd_swig.usrp_source_make(*args)
> RuntimeError: RuntimeError: usb rx8 submit failed: LIBUSB_ERROR_PIPE
>
> I have been receiving this error while executing UHD scripts, GRC
> flowgraphs and python scripts. As an example, the latest python script that
> I have developed looks like this:
>
> tb = file_sinks()
> try:
> while(True):
> raw_input('Press any key to begin..')
> tb.start()
> raw_input('Press any key to stop..')
> tb.stop()
> tb.blocks_file_source_0.seek(0,0)
> tb.wait()
> except (KeyboardInterrupt):
> tb.stop()
> tb.blocks_file_source_0.seek(0,0)
> tb.wait()
> sys.exit()
>
>
>
> In order to stop the script I issue a ctrl-c to the terminal and as you can
> see I manage the correspinding interrupt by properly stopping the
> top_block. However, the next time I execute the script I get the
> aforementioned error.
>
> This error occurs even in simple GRC flow graphs whenever I press the stop
> button. However if I just close the WX window that pops up, I wont get it
> the next time I execute my script.
>
> The only way to avoid this error in a future execution is to remove and
> re-insert the usb cable from the computer. My intuition is that it is a
> low-level driver problem but I cannt really figure out what's going on, let
> alone fix it.
>
> Removing and re-inserting the USB cable as one can imagine is quite
> discomforting so any suggestions on how to approach this are more than
> welcome.
>
> My setup is the following:
> Macmini Late 2012, OSX 10.9.5 gnuradio 3.7.5.1
>
>
> --
> Eleftherios(Lefteris) Kampianakis
> Electronics and Computer Engineer
> PHD Candidate and Researcher at Sensing Computing Communications Group
> (SGCC)
> Department of Electrical Engineering
> University of Washington
> 3927 Adams Lane, NE, Mercer Court D805B, 98105
> website: http://staff.washington.edu/ekampian/
> mail: [email protected]
>
>
>
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> Discuss-gnuradio mailing list
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