[Discuss-gnuradio] e310 and uhd_tx_dpsk

[Cheatham, Russell L CTR USARMY ATEC (US)]

I am trying to run uhd_tx_dpsk from an e310, but I am getting the following
error:

<<< Welcome to GNU Radio Companion 3.7.9 >>>

Preferences file: /home/root/.gnuradio/grc.conf
Block paths:
        /usr/local/share/gnuradio/grc/blocks
        /home/root/.grc_gnuradio
        /usr/share/gnuradio/grc/blocks

Loading: "/usr/share/gnuradio/examples/uhd/uhd_tx_dpsk.grc"
>>> Done

Showing: "/usr/share/gnuradio/examples/uhd/uhd_tx_dpsk.grc"

Generating: '/usr/share/gnuradio/examples/uhd/uhd_tx_dpsk.py'

Executing: '/usr/bin/python -u
/usr/share/gnuradio/examples/uhd/uhd_tx_dpsk.py'

linux; GNU C++ version 4.9.2; Boost_105700; UHD_003.009.002-0-unknown

Traceback (most recent call last):
  File "/usr/share/gnuradio/examples/uhd/uhd_tx_dpsk.py", line 262, in
<module>
    main()
  File "/usr/share/gnuradio/examples/uhd/uhd_tx_dpsk.py", line 250, in main
    tb = top_block_cls(address=options.address, gain=options.gain,
samp_rate=options.samp_rate, freq=options.freq)
  File "/usr/share/gnuradio/examples/uhd/uhd_tx_dpsk.py", line 93, in
__init__
    channels=range(1),
  File "/usr/lib/python2.7/site-packages/gnuradio/uhd/__init__.py", line
122, in constructor_interceptor
    return old_constructor(*args)
  File "/usr/lib/python2.7/site-packages/gnuradio/uhd/uhd_swig.py", line
2034, in make
    return _uhd_swig.usrp_sink_make(*args)
RuntimeError: i2c_zc_impl recv timeout

>>> Done (return code 1)

My image is release-4.  The problem is with the UHD: USRP Sink since I can
remove the block and it executes fine.  The same issue happens with USRP
Source block.  I can execute the tx_wavefors example, and it seems to
execute fine.  


What am I missing about the USRP Sink/Source blocks with regards to the
e310?    Many thanks!

smime.p7s
Description: S/MIME cryptographic signature