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Re: [Discuss-gnuradio] MIMO setup error in GRC


From: Marcus D. Leech
Subject: Re: [Discuss-gnuradio] MIMO setup error in GRC
Date: Sun, 28 Oct 2012 18:06:31 -0400
User-agent: Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.9.2.24) Gecko/20111108 Fedora/3.1.16-1.fc14 Thunderbird/3.1.16

On 10/28/2012 06:00 PM, Alex Dusowitz wrote:


Hi,

Does anyone know about the following error?

File "/export/home/usrp2/gnuradio-3.6.0/MyGRC/top_block.py", line 52, in __init__
    self.uhd_usrp_source_0.set_clock_source("mimo", 1)
  File "/usr/local/lib/python2.6/dist-packages/gnuradio/uhd/uhd_swig.py", line 1915, in set_clock_source
    return _uhd_swig.uhd_usrp_source_sptr_set_clock_source(self, *args, **kwargs)
RuntimeError: vector::_M_range_check


I am trying to setup a simple MIMO reception with N210+WBX boards in GRC. My MIMO connection is all ok since I can see both devices attached by running "uhd_find_devices" and "uhd_usrp_probe". My GRC has a [uhd: usrp source] block configured to have 2 Mboards one having default time and clock and the other having MIMO as its reference. Basically I have configured it the same as the model in Ettus's Application Note on MIMO and synchronization. But I'll get the error above at run-time.

Any help is very much appreciated! 

Thanks,
Alex


Given that you're running a fairly-old version of GNu Radio, I'm pretty confident that you're running a fairly-old version of UHD as well.

Upgrade both, and see if the error persists.  I think you may find that it doesn't.




-- 
Marcus Leech
Principal Investigator
Shirleys Bay Radio Astronomy Consortium
http://www.sbrac.org

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