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:
address@hidden