Re: [Discuss-gnuradio] connect USRP-2921 to gnuradio

[Marcus Müller]

Hi Mohamed,

UHD 3.5.5, which you seem to be using, is so very old that it lacks
crucial features. You should definitely update your UHD version.
I assume you're using Ubuntu 14.04 (they are the only ones who still
ship this old UHD), so please

sudo apt-get remove uhd-host libuhd003 gnuradio

and use pybombs to build UHD in its current version, a GNU Radio that
uses that version and everything you need, from source:

http://pybombs.info

Then, try to ping your USRP:

ping <ip-address of your USRP>

If that doesn't work, you still have a network problem. Please refer to
[1] :)

Best regards,
Marcus

[1] http://files.ettus.com/manual/page_usrp2.html#usrp2_commprob

On 17.11.2015 09:13, mohamid92 wrote:
> hello 
>
> i tried to implement FM reciever from this video :
> https://www.youtube.com/watch?v=KWeY2yqwVA0
>
> but the problem is that everytime i need to run the grc an error show which
> is:
>
> ----------------------------------------------
>
> linux; GNU C++ version 4.8.2; Boost_105400; UHD_003.005.005-0-unknown
>
> Using Volk machine: avx_64_mmx_orc
> Traceback (most recent call last):
>   File "/home/mohamed/GNURADIO exercise/top_block.py", line 157, in <module>
>     tb = top_block()
>   File "/home/mohamed/GNURADIO exercise/top_block.py", line 92, in __init__
>     channels=range(1),
>   File "/usr/lib/python2.7/dist-packages/gnuradio/uhd/__init__.py", line
> 122, in constructor_interceptor
>     return old_constructor(*args)
>   File "/usr/lib/python2.7/dist-packages/gnuradio/uhd/uhd_swig.py", line
> 1737, in make
>     return _uhd_swig.usrp_source_make(*args)
> RuntimeError: LookupError: KeyError: No devices found for ----->
> Empty Device Address
>
> -----------------------------------------------
>
>
>
> --
> View this message in context: 
> http://gnuradio.4.n7.nabble.com/connect-USRP-2921-to-gnuradio-tp56967.html
> Sent from the GnuRadio mailing list archive at Nabble.com.
>
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