[USRP-users] E310: 'Bus error' or Seg Fault when using freq_hopping.py

Philip Balister philip at opensdr.com
Tue Jul 21 14:56:41 EDT 2015

On 07/21/2015 02:47 PM, Collins, Richard via USRP-users wrote:
> I am new to GNURadio, and am used to using GRC for the few projects that
> I've done so far.  I am using the E310, and want to implement frequency
> hopping. I found GRC doesn't seem to be set up (at least intuitively, to
> me, as a newbie) for control logic and the FAQ mentions GRC doesn't
> implement loops (or looping control structures?).
> I found freq_hopping.py online as being available in the gr-uhd examples
> directory, but I didn't find it in the examples directory on the E310
> (though most other .py and .grc files were available). While ssh'd into the
> E310, I copied it over to the E310 using wget, chmod'd it to allow
> execution, and tried running it.

Can you post a link to where you found the flowgraph?


> No matter what options I specify (or even running it with all default
> configuration with no flags set), everything seems to set up correctly,
> frequency is tuned and tests pass, but it always end up like this:
> --   Successfully tuned to 2450.000000 MHz
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