[USRP-users] Long time for USRP N210 to respond -- is this v3.10, firewall problem, or something else?

Marcus Müller marcus.mueller at ettus.com
Sun Mar 20 14:39:08 EDT 2016


Or is it possible that you have multiple N210s in your network?

Best regards,
Marcus

On 20.03.2016 19:34, Marcus D. Leech via USRP-users wrote:
> On 03/20/2016 12:13 PM, Mendel, Susan Marie via USRP-users wrote:
>> Marcus,
>>
>> I get the same long delay with uhd_usrp_probe but not with
>> uhd_find_devices.
>>
>> Can I expect things to work OK through the firewall as long as I'm
>> specifying the IP address or is it likely to cause other problems
>> down the road?
>>
>> I'm going to try to install a released version now but I suspect  I
>> will have the same problem. I was seeing a similar delay on a Windows
>> laptop when I was trying to send data using the Matlab USRP support
>> package. I didn't have the laptop long enough to trouble shoot the
>> problem, which I'm guessing is in my system configuration some where.
>>
>> Thanks,
>> Susan
> My guess is that you have a network setup issue.  Either with your
> firewall configuration, or DNS.
>
> Do you perhaps have more than one device that is visible to your
> computer that has the same address as the N210?
>
>
>> ________________________________________
>> From: USRP-users <usrp-users-bounces at lists.ettus.com> on behalf of
>> usrp-users-request at lists.ettus.com <usrp-users-request at lists.ettus.com>
>> Sent: Sunday, March 20, 2016 10:00 AM
>> To: usrp-users at lists.ettus.com
>> Subject: USRP-users Digest, Vol 67, Issue 20
>>
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>> Today's Topics:
>>
>>     1. RFNoc Signal Output (Eugene Chai)
>>     2. Modelsim execute error for option -64 (Swanson, Craig)
>>     3. Re: Long time for USRP N210 to respond -- is this v3.10,
>>        firewall problem, or something else? (Marcus D. Leech)
>>
>>
>> ----------------------------------------------------------------------
>>
>> Message: 1
>> Date: Sat, 19 Mar 2016 17:48:46 +0000
>> From: Eugene Chai <eugene at nec-labs.com>
>> To: USRP-users <usrp-users at lists.ettus.com>
>> Subject: [USRP-users] RFNoc Signal Output
>> Message-ID: <8BBAC087-4F17-47D5-AF46-CED058E36479 at nec-labs.com>
>> Content-Type: text/plain; charset="utf-8"
>>
>> Hi,
>>
>> I have an RFNoC block on an X310 with three input and one output
>> port.  I used the addsub block as a starting point, and I?m working
>> on the rfnoc-devel git branch.   The RFNoC block acts as a mux ? it 
>> takes three continuous streams from the host PC, and selects one of
>> them for the output.  However, during testing, the output signal
>> seems to be discontinuous.  I?ve attached a plot of the output signal
>> that I captured over the air with a second X310.  Does anybody know
>> what could be wrong here?
>>
>> Thanks,
>> Eugene
>>
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>>
>> ------------------------------
>>
>> Message: 2
>> Date: Sat, 19 Mar 2016 18:09:14 +0000
>> From: "Swanson, Craig" <Craig.Swanson at gtri.gatech.edu>
>> To: Jonathon Pendlum <jonathon.pendlum at ettus.com>
>> Cc: "usrp-users at lists.ettus.com" <usrp-users at lists.ettus.com>
>> Subject: [USRP-users] Modelsim execute error for option -64
>> Message-ID: <1458410953798.64631 at gtri.gatech.edu>
>> Content-Type: text/plain; charset="iso-8859-1"
>>
>> Jonathon,
>>
>> I have not run a Modelsim simulation in about three months.  This
>> week I decided to upgrade my uhd/fpga-src to the latest rev in git.
>>
>>
>> I tried running the noc_block_qpsk testbench and I got the following
>> error:
>>
>> Failed to open executable
>> /opt/mentor/modelsim/modelsim_dlx/bin/../linuxpe/../linux_x86_64pe/vish
>> in execute mode needed for the option -64.
>> execv: No such file or directory
>> ** Fatal: Unable to exec the GUI
>> /opt/mentor/modelsim/modelsim_dlx/bin/../linuxpe/../linux_x86_64pe/vish.
>>
>> Do you have any ideas on where I can start looking for how to fix
>> this error?
>>
>> Craig
>>
>>
>>
>> Craig F. Swanson
>> Research Engineer II
>> Information and Communications Laboratory
>> Communications, Systems, and Spectrum Division
>> Georgia Tech Research Institute
>> Room 560
>> 250 14th St NW
>> Atlanta, GA 30318
>> Cell: 770.298.9156
>> http://www.gtri.gatech.edu<https://mail.gtri.gatech.edu/owa/redir.aspx?C=c20925f2f0af4dd29329ddf0701ecfff&URL=http%3a%2f%2fwww.gtri.gatech.edu%2f>
>>
>>
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>> ------------------------------
>>
>> Message: 3
>> Date: Sat, 19 Mar 2016 14:25:29 -0400
>> From: "Marcus D. Leech" <mleech at ripnet.com>
>> To: usrp-users at lists.ettus.com
>> Subject: Re: [USRP-users] Long time for USRP N210 to respond -- is
>>          this v3.10, firewall problem, or something else?
>> Message-ID: <56ED9999.2080409 at ripnet.com>
>> Content-Type: text/plain; charset="windows-1252"; Format="flowed"
>>
>> On 03/18/2016 10:01 PM, Mendel, Susan Marie via USRP-users wrote:
>>>
>>>
>>> In installing UHD on a new laptop, I very stupidly installed version
>>> 3.10 instead of the latest release. I didn't use git clone -- I tried
>>> but that failed, I think due to my firewall, so I grabbed the zip.
>>>
>>> When I send a command to the USRP N210, there seems to be a 30 second
>>> or so delay before I get any response. For instance the command
>>> tx_waveforms prints out "current send frame size" and then it will be
>>> a long time before I see anything else. Things seem to work fine once
>>> it starts sending. Using the same command on a computer with v3.8.4
>>> installed and the same USRP, there is no long delay.
>>>
>>>
>>> I haven't disabled the firewall because I may need permission to do
>>> that. Meanwhile I'm specifying the USRP address in the command. Is the
>>> firewall likely causing the delay?
>>>
>>> Secondly, if I were to try building an earlier version instead, what
>>> all do I need to remove first? The lib64/uhd directory?
>>>
>>>
>>> Thanks for any help
>>>
>>>
>> A delay isn't normal.
>>
>> What happens if you use uhd_usrp_probe:
>>
>> uhd_usrp_probe --args addr=192.168.10.2       (or whatever the IP
>> address of your N210 is)
>>
>>
>>
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