[USRP-users] GPSDO desynchronisation during Initialising

Marius metallheart_18 at yahoo.com
Wed Oct 21 12:56:29 EDT 2015


I updated the UHD to the most recent 3.10. And it is more better with the GPS synchronisation. 
Thank you.

> On 15Oct 2015, at 22:11, Marius <metallheart_18 at yahoo.com> wrote:
> 
> Copy that.
> I will do the upgrade as soon as possible. 
> It's nice to see this strong USRP/GnuRadio community.
> Thanks again. I will give a feed back in the post when I manage to update the driver.
> 
>> On 15Oct 2015, at 22:00, mleech at ripnet.com <mailto:mleech at ripnet.com> wrote:
>> 
>> There have been a number updates/fixes to the X310 code between 3.8.4 and release 3.9.1.  I strongly recommend an upgrade.
>> 
>>  
>>  
>>  
>> On 2015-10-15 14:55, Marius wrote:
>> 
>>> Honestly, I don't remember what was the problem. It happened  at the beginning of may (4th-5th). Then I used the build-gnuradio script and also pybombs to install. Both installed by default from github the 3.9 version (which was beta at that time). If I had known then about this mail-list i would have posted the error. What I remember is that there were some unusual errors when compiling some C files, and a fatal error when starting any connection to the usrp. The compiled driver worked very well with the N210, it only crashed when connecting to the X310. 
>>>  
>>> Again, sorry for not posting the error at that time.
>>> 
>>>> On 15Oct 2015, at 21:25, mleech at ripnet.com <mailto:mleech at ripnet.com> wrote:
>>>> 
>>>> Were you compile failures due to the Cheetah/Mako switchover?
>>>> 
>>>> http://gnuradio.4.n7.nabble.com/UHD-Replacing-Cheetah-Templates-with-Mako-td54680.html <http://gnuradio.4.n7.nabble.com/UHD-Replacing-Cheetah-Templates-with-Mako-td54680.html>
>>>>  
>>>>  
>>>> On 2015-10-15 13:37, Marius wrote:
>>>> 
>>>> Thank you Marcus for the quick response,
>>>>  
>>>> I have 1xLFRX, 1xLFTX and 1xWBX. The USRP came from NI with 2xWBX and the GPSDO already installed.
>>>> I tried a couple of months ago to update to UHD v. 3.9 (beta) but I got some compiling errors and the PC could't see the device (connected by PCIe) so I returned to UGD 3.8. 
>>>> After that I didn't tried to upgrade anymore the driver.
>>>> Regarding the power supply, tomorrow I will get back to you with that 'cause I have the device at work.
>>>>  
>>>> Thanks
>>>>  
>>>> On 15Oct 2015, at 19:54, mleech at ripnet.com <mailto:mleech at ripnet.com> wrote:
>>>> 
>>>> What daughtercards are you using?
>>>> 
>>>> Do you have the 3amp or 4amp power supply?
>>>> 
>>>> Could you try updating to a new UHD?
>>>> 
>>>>  
>>>>  
>>>>  
>>>> On 2015-10-15 12:41, Marius via USRP-users wrote:
>>>> 
>>>> Hi, 
>>>> I have a issue with my X310 USRP (bought from National Instruments the model NI 2950). The GPSDO (LCXO BOM: 3.1, FW: 0.929a-1PPS, PN: 100) loses the synchronisation almost every time when the flow graph is started, just after the console outputs "Found an internal GPSDO. Initializing time to the internal GPSDO".
>>>> It takes a variable time for the board_sensor to get locked again, somewhere between 10 seconds and 15 minutes. 
>>>> Did someone had the same issue or knows if it is a software/firmware/hardware problem of any idea how to fix it?
>>>> I use UHD 3.8.4.
>>>> 
>>>> Thank you.
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> 

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