[USRP-users] USB problems
marcus.mueller at ettus.com
Tue Jul 28 17:34:03 EDT 2015
you seem to have two different, competing UHD installations, one in
/usr/local/, and one in /usr/.
Make sure you only have one. Again, it's important that you remove all
other UHDs from your system before you install your self-built UHD.
On 28.07.2015 23:31, Vsr Ravi wrote:
> Thanks for the suggestions that you have given. But I have encountered
> a problem. Whenever I run the file of Latency_test located in
> /usr/lib/uhd/examples, I get the error as
> Error: LookupError: IndexError: multi_usrp::mb_root(140725369489696) -
> And when I run "test_messages" command, it shows
> Segmentation fault (core dumped)
> Please suggest as to what I can do to prevent the above errors. Thank you
> On Tuesday, 28 July 2015 4:28 AM, Marcus Müller
> <marcus.mueller at ettus.com> wrote:
> Hi Ravi,
> On 28.07.2015 00:55, Vsr Ravi wrote:
>> Hey all,
>> I have tried to run the USRP1 by giving the command "sudo
>> uhd_usrp_probe and I get the result as below.
>> linux; GNU C++ version 4.8.4; Boost_105500; UHD_003.009.git-144-g407e3086
>> -- Opening a USRP1 device...
>> -- Loading FPGA image: /usr/local/share/uhd/images/usrp1_fpga.rbf... done
>> Can anyone please tell what this means and what do I do next as I am
>> new to gnuradio. Thanks
> As Martin said: Both your USRP as your UHD installation work pretty well!
> The only thing is that you need to run it as root (the sudo part), and
> that's not a good thing.
> Can you make sure that /etc/udev/rules.d/ contains the uhd.rules
> file? If not, copy it over from
> /usr/local/lib/uhd/utils/uhd-usrp.rules, e.g. like
> sudo cp /usr/local/lib/uhd/utils/uhd-usrp.rules /etc/udev/rules.d/
> and then reboot.
> The next time you plug in your USRP, it should no longer be only
> accessible by root.
> Best regards,
>  You said earlier you did
> cd usr/lib/uhd/utils
> sudo cp uhd-usrp.rules /etc/udev/rules.d/
> sudo udevadm control --reload-rules
> sudo udevadm trigger
> but that's not the right path, if uhd is installed to /usr/local/...
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