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[Discuss-gnuradio] MIMO setup error in GRC

From: Alex Dusowitz
Subject: [Discuss-gnuradio] MIMO setup error in GRC
Date: Sun, 28 Oct 2012 18:00:31 -0400


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! 


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