[USRP-users] GPSDO on N210 problem

Josh Blum josh at ettus.com
Mon Apr 15 03:38:31 EDT 2013



On 04/15/2013 12:28 AM, Sam mite wrote:
> Hi,
> 
> I am trying to setup GPS on my N210. The problem is that Detecting internal
> GPSDO returns *"not found"* as shown below. Whereas it also says that *gpsdo:
> internal.  *What is wrong ? I am on ubnutu Gnuradio 3.6.3rc0. My UHD
> version is  UHD_003.005.000-26-gb65a3924
> 

The gpsdo internal is just an entry in the device's eeprom to tell it
that it should look for the GPSDO. So, I think you are looking at a
communication issue. Double check that the power and serial cables
appear to be plugged in correctly.

-josh

> 
> UHD Warning:
>     The send buffer could not be resized sufficiently.
>     Target sock buff size: 1048576 bytes.
>     Actual sock buff size: 1000000 bytes.
>     See the transport application notes on buffer resizing.
>     Please run: sudo sysctl -w net.core.wmem_max=1048576
> -- Detecting internal GPSDO.... not found
>   _____________________________________________________
>  /
> |       Device: USRP2 / N-Series Device
> |     _____________________________________________________
> |    /
> |   |       Mboard: N210r4
> |   |   hardware: 2577
> |   |   mac-addr: a0:36:fa:25:33:e9
> |   |   ip-addr: 192.168.10.2
> |   |   subnet: 255.255.255.255
> |   |   gateway: 255.255.255.255
> |   |   *gpsdo: internal*
> |   |   serial: EER13V9UP
> |   |   name: sdr_2
> |   |   FW Version: 12.3
> |   |   FPGA Version: 10.0
> |   |
> |   |   Time sources: none, external, _external_, mimo
> |   |   Clock sources: internal, external, mimo
> |   |   Sensors: mimo_locked, ref_locked
> |   |     _____________________________________________________
> 
> 
> 
> Thanks.
> 
> 
> 
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