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B210 GPSDO 10 MHz Ref not locking, clock not syncing

NS
Nowlan, Sean
Sun, Sep 20, 2015 3:35 PM

I have a B210 (original version with white circuit board) with a Jackson Labs GPSDO (TCXO version from Ettus Research). I'm having two problems, but apparent when running the query_gpsdo_sensors utility:

  1. USRP only sporadically locks to the GPSDO 10 MHz reference. On most runs of query_gpsdo_sensors, it does not report lock.
  2. The UHD clock isn't getting set according to GPS time. It's my understanding that when a GPSDO module is detected, this should happen automatically.

I've tried this both with and without 6V power. Also as far as I can tell the GPSDO module has been installed correctly. On a cold boot of the B210 and on running the first app that loads the B210 firmware, LEDs D3 and D4 on the GPSDO module and LED100 on the B210 illuminate briefly. A few minutes after cold boot, the GPSDO module starts to blink LED D4 on for 1 second and off for 1 second, which I assume has to do with GPS acquisition.

Other information:
Ubuntu 14.04.3 LTS
Boost 1.54
UHD 003.010.git-29-gbc80e972
FPGA image fetched by uhd_images_downloader utility

Output of query_gpsdo_sensors:

[...]
GPS Locked
USRP NOT Locked to GPSDO 10 MHz Reference.
Double check installation instructions (N2X0/E1X0 only): https://www.ettus.com/content/files/gpsdo-kit_4.pdf

GPS and UHD Device time are NOT aligned last_pps: 5 vs gps: 1442760419. Try re-running the program. Double check 1 PPS connection from GPSDO.

Printing available NMEA strings:
[...]
GPS epoch time: 1442760419 seconds
UHD Device time: 5 seconds
PC Clock time: 1442760419 seconds

Thanks,

Sean

I have a B210 (original version with white circuit board) with a Jackson Labs GPSDO (TCXO version from Ettus Research). I'm having two problems, but apparent when running the query_gpsdo_sensors utility: 1) USRP only sporadically locks to the GPSDO 10 MHz reference. On most runs of query_gpsdo_sensors, it does not report lock. 2) The UHD clock isn't getting set according to GPS time. It's my understanding that when a GPSDO module is detected, this should happen automatically. I've tried this both with and without 6V power. Also as far as I can tell the GPSDO module has been installed correctly. On a cold boot of the B210 and on running the first app that loads the B210 firmware, LEDs D3 and D4 on the GPSDO module and LED100 on the B210 illuminate briefly. A few minutes after cold boot, the GPSDO module starts to blink LED D4 on for 1 second and off for 1 second, which I assume has to do with GPS acquisition. Other information: Ubuntu 14.04.3 LTS Boost 1.54 UHD 003.010.git-29-gbc80e972 FPGA image fetched by uhd_images_downloader utility Output of query_gpsdo_sensors: [...] GPS Locked USRP NOT Locked to GPSDO 10 MHz Reference. Double check installation instructions (N2X0/E1X0 only): https://www.ettus.com/content/files/gpsdo-kit_4.pdf GPS and UHD Device time are NOT aligned last_pps: 5 vs gps: 1442760419. Try re-running the program. Double check 1 PPS connection from GPSDO. Printing available NMEA strings: [...] GPS epoch time: 1442760419 seconds UHD Device time: 5 seconds PC Clock time: 1442760419 seconds Thanks, Sean
MD
Marcus D. Leech
Sun, Sep 20, 2015 6:29 PM

Is this situation where it was previously working and stopped, or is
this the first time you've had the GPSDO in the B210?

On 09/20/2015 11:35 AM, Nowlan, Sean via USRP-users wrote:

I have a B210 (original version with white circuit board) with a
Jackson Labs GPSDO (TCXO version from Ettus Research). I'm having two
problems, but apparent when running the query_gpsdo_sensors utility:

  1. USRP only sporadically locks to the GPSDO 10 MHz reference. On most
    runs of query_gpsdo_sensors, it does not report lock.
  2. The UHD clock isn't getting set according to GPS time. It's my
    understanding that when a GPSDO module is detected, this should
    happen automatically.

I've tried this both with and without 6V power. Also as far as I can
tell the GPSDO module has been installed correctly. On a cold boot of
the B210 and on running the first app that loads the B210 firmware,
LEDs D3 and D4 on the GPSDO module and LED100 on the B210 illuminate
briefly. A few minutes after cold boot, the GPSDO module starts
to blink LED D4 on for 1 second and off for 1 second, which I assume
has to do with GPS acquisition.

Other information:
Ubuntu 14.04.3 LTS
Boost 1.54
UHD 003.010.git-29-gbc80e972
FPGA image fetched by uhd_images_downloader utility

Output of query_gpsdo_sensors:

[...]
GPS Locked
USRP NOT Locked to GPSDO 10 MHz Reference.
Double check installation instructions (N2X0/E1X0 only):
https://www.ettus.com/content/files/gpsdo-kit_4.pdf

GPS and UHD Device time are NOT aligned last_pps: 5 vs gps:
1442760419. Try re-running the program. Double check 1 PPS connection
from GPSDO.

Printing available NMEA strings:
[...]
GPS epoch time: 1442760419 seconds
UHD Device time: 5 seconds
PC Clock time: 1442760419 seconds

Thanks,

Sean


USRP-users mailing list
USRP-users@lists.ettus.com
http://lists.ettus.com/mailman/listinfo/usrp-users_lists.ettus.com

Is this situation where it was previously working and stopped, or is this the first time you've had the GPSDO in the B210? On 09/20/2015 11:35 AM, Nowlan, Sean via USRP-users wrote: > I have a B210 (original version with white circuit board) with a > Jackson Labs GPSDO (TCXO version from Ettus Research). I'm having two > problems, but apparent when running the query_gpsdo_sensors utility: > > 1) USRP only sporadically locks to the GPSDO 10 MHz reference. On most > runs of query_gpsdo_sensors, it does not report lock. > 2) The UHD clock isn't getting set according to GPS time. It's my > understanding that when a GPSDO module is detected, this should > happen automatically. > > I've tried this both with and without 6V power. Also as far as I can > tell the GPSDO module has been installed correctly. On a cold boot of > the B210 and on running the first app that loads the B210 firmware, > LEDs D3 and D4 on the GPSDO module and LED100 on the B210 illuminate > briefly. A few minutes after cold boot, the GPSDO module starts > to blink LED D4 on for 1 second and off for 1 second, which I assume > has to do with GPS acquisition. > > Other information: > Ubuntu 14.04.3 LTS > Boost 1.54 > UHD 003.010.git-29-gbc80e972 > FPGA image fetched by uhd_images_downloader utility > > Output of query_gpsdo_sensors: > > [...] > GPS Locked > USRP NOT Locked to GPSDO 10 MHz Reference. > Double check installation instructions (N2X0/E1X0 only): > https://www.ettus.com/content/files/gpsdo-kit_4.pdf > > GPS and UHD Device time are NOT aligned last_pps: 5 vs gps: > 1442760419. Try re-running the program. Double check 1 PPS connection > from GPSDO. > > Printing available NMEA strings: > [...] > GPS epoch time: 1442760419 seconds > UHD Device time: 5 seconds > PC Clock time: 1442760419 seconds > > > Thanks, > > Sean > > > > _______________________________________________ > USRP-users mailing list > USRP-users@lists.ettus.com > http://lists.ettus.com/mailman/listinfo/usrp-users_lists.ettus.com
NS
Nowlan, Sean
Sun, Sep 20, 2015 6:34 PM

?It's been installed for perhaps 1 year, and to my knowledge it has worked in the past. Unfortunately I don't have a record of when it was previously working.

Sean


From: USRP-users usrp-users-bounces@lists.ettus.com on behalf of Marcus D. Leech via USRP-users usrp-users@lists.ettus.com
Sent: Sunday, September 20, 2015 2:29 PM
To: usrp-users@lists.ettus.com
Subject: Re: [USRP-users] B210 GPSDO 10 MHz Ref not locking, clock not syncing

Is this situation where it was previously working and stopped, or is this the first time you've had the GPSDO in the B210?

On 09/20/2015 11:35 AM, Nowlan, Sean via USRP-users wrote:
I have a B210 (original version with white circuit board) with a Jackson Labs GPSDO (TCXO version from Ettus Research). I'm having two problems, but apparent when running the query_gpsdo_sensors utility:

  1. USRP only sporadically locks to the GPSDO 10 MHz reference. On most runs of query_gpsdo_sensors, it does not report lock.
  2. The UHD clock isn't getting set according to GPS time. It's my understanding that when a GPSDO module is detected, this should happen automatically.

I've tried this both with and without 6V power. Also as far as I can tell the GPSDO module has been installed correctly. On a cold boot of the B210 and on running the first app that loads the B210 firmware, LEDs D3 and D4 on the GPSDO module and LED100 on the B210 illuminate briefly. A few minutes after cold boot, the GPSDO module starts to blink LED D4 on for 1 second and off for 1 second, which I assume has to do with GPS acquisition.

Other information:
Ubuntu 14.04.3 LTS
Boost 1.54
UHD 003.010.git-29-gbc80e972
FPGA image fetched by uhd_images_downloader utility

Output of query_gpsdo_sensors:

[...]
GPS Locked
USRP NOT Locked to GPSDO 10 MHz Reference.
Double check installation instructions (N2X0/E1X0 only): https://www.ettus.com/content/files/gpsdo-kit_4.pdf

GPS and UHD Device time are NOT aligned last_pps: 5 vs gps: 1442760419. Try re-running the program. Double check 1 PPS connection from GPSDO.

Printing available NMEA strings:
[...]
GPS epoch time: 1442760419 seconds
UHD Device time: 5 seconds
PC Clock time: 1442760419 seconds

Thanks,

Sean


USRP-users mailing list
USRP-users@lists.ettus.commailto:USRP-users@lists.ettus.com
http://lists.ettus.com/mailman/listinfo/usrp-users_lists.ettus.com

?It's been installed for perhaps 1 year, and to my knowledge it has worked in the past. Unfortunately I don't have a record of when it was previously working. Sean ________________________________ From: USRP-users <usrp-users-bounces@lists.ettus.com> on behalf of Marcus D. Leech via USRP-users <usrp-users@lists.ettus.com> Sent: Sunday, September 20, 2015 2:29 PM To: usrp-users@lists.ettus.com Subject: Re: [USRP-users] B210 GPSDO 10 MHz Ref not locking, clock not syncing Is this situation where it was previously working and stopped, or is this the first time you've had the GPSDO in the B210? On 09/20/2015 11:35 AM, Nowlan, Sean via USRP-users wrote: I have a B210 (original version with white circuit board) with a Jackson Labs GPSDO (TCXO version from Ettus Research). I'm having two problems, but apparent when running the query_gpsdo_sensors utility: 1) USRP only sporadically locks to the GPSDO 10 MHz reference. On most runs of query_gpsdo_sensors, it does not report lock. 2) The UHD clock isn't getting set according to GPS time. It's my understanding that when a GPSDO module is detected, this should happen automatically. I've tried this both with and without 6V power. Also as far as I can tell the GPSDO module has been installed correctly. On a cold boot of the B210 and on running the first app that loads the B210 firmware, LEDs D3 and D4 on the GPSDO module and LED100 on the B210 illuminate briefly. A few minutes after cold boot, the GPSDO module starts to blink LED D4 on for 1 second and off for 1 second, which I assume has to do with GPS acquisition. Other information: Ubuntu 14.04.3 LTS Boost 1.54 UHD 003.010.git-29-gbc80e972 FPGA image fetched by uhd_images_downloader utility Output of query_gpsdo_sensors: [...] GPS Locked USRP NOT Locked to GPSDO 10 MHz Reference. Double check installation instructions (N2X0/E1X0 only): https://www.ettus.com/content/files/gpsdo-kit_4.pdf GPS and UHD Device time are NOT aligned last_pps: 5 vs gps: 1442760419. Try re-running the program. Double check 1 PPS connection from GPSDO. Printing available NMEA strings: [...] GPS epoch time: 1442760419 seconds UHD Device time: 5 seconds PC Clock time: 1442760419 seconds Thanks, Sean _______________________________________________ USRP-users mailing list USRP-users@lists.ettus.com<mailto:USRP-users@lists.ettus.com> http://lists.ettus.com/mailman/listinfo/usrp-users_lists.ettus.com
MD
Marcus D. Leech
Sun, Sep 20, 2015 6:42 PM

On 09/20/2015 02:34 PM, Nowlan, Sean wrote:

​It's been installed for perhaps 1 year, and to my knowledge it has
worked in the past. Unfortunately I don't have a record of when it was
previously working.

Sean

Could you back-out to a previous UHD release and see if that makes a
difference?


From: USRP-users usrp-users-bounces@lists.ettus.com on behalf of
Marcus D. Leech via USRP-users usrp-users@lists.ettus.com
Sent: Sunday, September 20, 2015 2:29 PM
To: usrp-users@lists.ettus.com
Subject: Re: [USRP-users] B210 GPSDO 10 MHz Ref not locking, clock
not syncing
Is this situation where it was previously working and stopped, or is
this the first time you've had the GPSDO in the B210?

On 09/20/2015 11:35 AM, Nowlan, Sean via USRP-users wrote:

I have a B210 (original version with white circuit board) with a
Jackson Labs GPSDO (TCXO version from Ettus Research). I'm having two
problems, but apparent when running the query_gpsdo_sensors utility:

  1. USRP only sporadically locks to the GPSDO 10 MHz reference. On
    most runs of query_gpsdo_sensors, it does not report lock.
  2. The UHD clock isn't getting set according to GPS time. It's my
    understanding that when a GPSDO module is detected, this should
    happen automatically.

I've tried this both with and without 6V power. Also as far as I can
tell the GPSDO module has been installed correctly. On a cold boot of
the B210 and on running the first app that loads the B210 firmware,
LEDs D3 and D4 on the GPSDO module and LED100 on the B210 illuminate
briefly. A few minutes after cold boot, the GPSDO module starts
to blink LED D4 on for 1 second and off for 1 second, which I assume
has to do with GPS acquisition.

Other information:
Ubuntu 14.04.3 LTS
Boost 1.54
UHD 003.010.git-29-gbc80e972
FPGA image fetched by uhd_images_downloader utility

Output of query_gpsdo_sensors:

[...]
GPS Locked
USRP NOT Locked to GPSDO 10 MHz Reference.
Double check installation instructions (N2X0/E1X0 only):
https://www.ettus.com/content/files/gpsdo-kit_4.pdf

GPS and UHD Device time are NOT aligned last_pps: 5 vs gps:
1442760419. Try re-running the program. Double check 1 PPS connection
from GPSDO.

Printing available NMEA strings:
[...]
GPS epoch time: 1442760419 seconds
UHD Device time: 5 seconds
PC Clock time: 1442760419 seconds

Thanks,

Sean


USRP-users mailing list
USRP-users@lists.ettus.com
http://lists.ettus.com/mailman/listinfo/usrp-users_lists.ettus.com

On 09/20/2015 02:34 PM, Nowlan, Sean wrote: > > ​It's been installed for perhaps 1 year, and to my knowledge it has > worked in the past. Unfortunately I don't have a record of when it was > previously working. > > > Sean > > Could you back-out to a previous UHD release and see if that makes a difference? > ------------------------------------------------------------------------ > *From:* USRP-users <usrp-users-bounces@lists.ettus.com> on behalf of > Marcus D. Leech via USRP-users <usrp-users@lists.ettus.com> > *Sent:* Sunday, September 20, 2015 2:29 PM > *To:* usrp-users@lists.ettus.com > *Subject:* Re: [USRP-users] B210 GPSDO 10 MHz Ref not locking, clock > not syncing > Is this situation where it was previously working and stopped, or is > this the first time you've had the GPSDO in the B210? > > > On 09/20/2015 11:35 AM, Nowlan, Sean via USRP-users wrote: >> I have a B210 (original version with white circuit board) with a >> Jackson Labs GPSDO (TCXO version from Ettus Research). I'm having two >> problems, but apparent when running the query_gpsdo_sensors utility: >> >> 1) USRP only sporadically locks to the GPSDO 10 MHz reference. On >> most runs of query_gpsdo_sensors, it does not report lock. >> 2) The UHD clock isn't getting set according to GPS time. It's my >> understanding that when a GPSDO module is detected, this should >> happen automatically. >> >> I've tried this both with and without 6V power. Also as far as I can >> tell the GPSDO module has been installed correctly. On a cold boot of >> the B210 and on running the first app that loads the B210 firmware, >> LEDs D3 and D4 on the GPSDO module and LED100 on the B210 illuminate >> briefly. A few minutes after cold boot, the GPSDO module starts >> to blink LED D4 on for 1 second and off for 1 second, which I assume >> has to do with GPS acquisition. >> >> Other information: >> Ubuntu 14.04.3 LTS >> Boost 1.54 >> UHD 003.010.git-29-gbc80e972 >> FPGA image fetched by uhd_images_downloader utility >> >> Output of query_gpsdo_sensors: >> >> [...] >> GPS Locked >> USRP NOT Locked to GPSDO 10 MHz Reference. >> Double check installation instructions (N2X0/E1X0 only): >> https://www.ettus.com/content/files/gpsdo-kit_4.pdf >> >> GPS and UHD Device time are NOT aligned last_pps: 5 vs gps: >> 1442760419. Try re-running the program. Double check 1 PPS connection >> from GPSDO. >> >> Printing available NMEA strings: >> [...] >> GPS epoch time: 1442760419 seconds >> UHD Device time: 5 seconds >> PC Clock time: 1442760419 seconds >> >> >> Thanks, >> >> Sean >> >> >> >> _______________________________________________ >> USRP-users mailing list >> USRP-users@lists.ettus.com >> http://lists.ettus.com/mailman/listinfo/usrp-users_lists.ettus.com >
TS
Timothy Schaffer
Sun, Sep 20, 2015 6:47 PM

If the UHD roll-back doesn't work and you have the means to do so, you
might try pulling the GPSDO off the board and testing it standalone.
http://www.jackson-labs.com/assets/uploads/main/LC_XO_Manual.pdf  the
pinout for the module is on page 6 of the PDF, so you should be able to
measure the 10MHz out directly from the GPSDO, as well as monitor the NMEA
output. At the very least, I would think it would help you determine if the
GPSDO is the problem, or your B210 is the problem.

Cheers
-Tim

On Sun, Sep 20, 2015 at 9:34 PM, Nowlan, Sean via USRP-users <
usrp-users@lists.ettus.com> wrote:

​It's been installed for perhaps 1 year, and to my knowledge it has worked
in the past. Unfortunately I don't have a record of when it was previously
working.

Sean


From: USRP-users usrp-users-bounces@lists.ettus.com on behalf of
Marcus D. Leech via USRP-users usrp-users@lists.ettus.com
Sent: Sunday, September 20, 2015 2:29 PM
To: usrp-users@lists.ettus.com
Subject: Re: [USRP-users] B210 GPSDO 10 MHz Ref not locking, clock not
syncing

Is this situation where it was previously working and stopped, or is this
the first time you've had the GPSDO in the B210?

On 09/20/2015 11:35 AM, Nowlan, Sean via USRP-users wrote:

I have a B210 (original version with white circuit board) with a Jackson
Labs GPSDO (TCXO version from Ettus Research). I'm having two problems, but
apparent when running the query_gpsdo_sensors utility:

  1. USRP only sporadically locks to the GPSDO 10 MHz reference. On most
    runs of query_gpsdo_sensors, it does not report lock.
  2. The UHD clock isn't getting set according to GPS time. It's my
    understanding that when a GPSDO module is detected, this should
    happen automatically.

I've tried this both with and without 6V power. Also as far as I can tell
the GPSDO module has been installed correctly. On a cold boot of the B210
and on running the first app that loads the B210 firmware, LEDs D3 and D4
on the GPSDO module and LED100 on the B210 illuminate briefly. A few
minutes after cold boot, the GPSDO module starts to blink LED D4 on for 1
second and off for 1 second, which I assume has to do with GPS acquisition.

Other information:
Ubuntu 14.04.3 LTS
Boost 1.54
UHD 003.010.git-29-gbc80e972
FPGA image fetched by uhd_images_downloader utility

Output of query_gpsdo_sensors:

[...]
GPS Locked
USRP NOT Locked to GPSDO 10 MHz Reference.
Double check installation instructions (N2X0/E1X0 only):
https://www.ettus.com/content/files/gpsdo-kit_4.pdf

GPS and UHD Device time are NOT aligned last_pps: 5 vs gps: 1442760419.
Try re-running the program. Double check 1 PPS connection from GPSDO.

Printing available NMEA strings:
[...]
GPS epoch time: 1442760419 seconds
UHD Device time: 5 seconds
PC Clock time: 1442760419 seconds

Thanks,

Sean


USRP-users mailing listUSRP-users@lists.ettus.comhttp://lists.ettus.com/mailman/listinfo/usrp-users_lists.ettus.com


USRP-users mailing list
USRP-users@lists.ettus.com
http://lists.ettus.com/mailman/listinfo/usrp-users_lists.ettus.com

If the UHD roll-back doesn't work and you have the means to do so, you might try pulling the GPSDO off the board and testing it standalone. http://www.jackson-labs.com/assets/uploads/main/LC_XO_Manual.pdf the pinout for the module is on page 6 of the PDF, so you should be able to measure the 10MHz out directly from the GPSDO, as well as monitor the NMEA output. At the very least, I would think it would help you determine if the GPSDO is the problem, or your B210 is the problem. Cheers -Tim On Sun, Sep 20, 2015 at 9:34 PM, Nowlan, Sean via USRP-users < usrp-users@lists.ettus.com> wrote: > ​It's been installed for perhaps 1 year, and to my knowledge it has worked > in the past. Unfortunately I don't have a record of when it was previously > working. > > > Sean > > > ------------------------------ > *From:* USRP-users <usrp-users-bounces@lists.ettus.com> on behalf of > Marcus D. Leech via USRP-users <usrp-users@lists.ettus.com> > *Sent:* Sunday, September 20, 2015 2:29 PM > *To:* usrp-users@lists.ettus.com > *Subject:* Re: [USRP-users] B210 GPSDO 10 MHz Ref not locking, clock not > syncing > > Is this situation where it was previously working and stopped, or is this > the first time you've had the GPSDO in the B210? > > > > On 09/20/2015 11:35 AM, Nowlan, Sean via USRP-users wrote: > > I have a B210 (original version with white circuit board) with a Jackson > Labs GPSDO (TCXO version from Ettus Research). I'm having two problems, but > apparent when running the query_gpsdo_sensors utility: > > 1) USRP only sporadically locks to the GPSDO 10 MHz reference. On most > runs of query_gpsdo_sensors, it does not report lock. > 2) The UHD clock isn't getting set according to GPS time. It's my > understanding that when a GPSDO module is detected, this should > happen automatically. > > I've tried this both with and without 6V power. Also as far as I can tell > the GPSDO module has been installed correctly. On a cold boot of the B210 > and on running the first app that loads the B210 firmware, LEDs D3 and D4 > on the GPSDO module and LED100 on the B210 illuminate briefly. A few > minutes after cold boot, the GPSDO module starts to blink LED D4 on for 1 > second and off for 1 second, which I assume has to do with GPS acquisition. > > Other information: > Ubuntu 14.04.3 LTS > Boost 1.54 > UHD 003.010.git-29-gbc80e972 > FPGA image fetched by uhd_images_downloader utility > > Output of query_gpsdo_sensors: > > [...] > GPS Locked > USRP NOT Locked to GPSDO 10 MHz Reference. > Double check installation instructions (N2X0/E1X0 only): > https://www.ettus.com/content/files/gpsdo-kit_4.pdf > > GPS and UHD Device time are NOT aligned last_pps: 5 vs gps: 1442760419. > Try re-running the program. Double check 1 PPS connection from GPSDO. > > Printing available NMEA strings: > [...] > GPS epoch time: 1442760419 seconds > UHD Device time: 5 seconds > PC Clock time: 1442760419 seconds > > > Thanks, > > Sean > > > _______________________________________________ > USRP-users mailing listUSRP-users@lists.ettus.comhttp://lists.ettus.com/mailman/listinfo/usrp-users_lists.ettus.com > > > > _______________________________________________ > USRP-users mailing list > USRP-users@lists.ettus.com > http://lists.ettus.com/mailman/listinfo/usrp-users_lists.ettus.com > >
NS
Nowlan, Sean
Mon, Sep 21, 2015 1:26 PM

Is there a specific roll-back version of UHD that I should try? I currently don't have a breadboard or power supply to test the GPSDO module separately but I can look at the 10 MHz pin while the board is running on the B210.

Sean


From: Timothy Schaffer reffahcs@gmail.com
Sent: Sunday, September 20, 2015 2:47 PM
To: Nowlan, Sean
Cc: Marcus D. Leech; USRP-users@lists.ettus.com
Subject: Re: [USRP-users] B210 GPSDO 10 MHz Ref not locking, clock not syncing

If the UHD roll-back doesn't work and you have the means to do so, you might try pulling the GPSDO off the board and testing it standalone. http://www.jackson-labs.com/assets/uploads/main/LC_XO_Manual.pdf  the pinout for the module is on page 6 of the PDF, so you should be able to measure the 10MHz out directly from the GPSDO, as well as monitor the NMEA output. At the very least, I would think it would help you determine if the GPSDO is the problem, or your B210 is the problem.

Cheers
-Tim

On Sun, Sep 20, 2015 at 9:34 PM, Nowlan, Sean via USRP-users <usrp-users@lists.ettus.commailto:usrp-users@lists.ettus.com> wrote:

?It's been installed for perhaps 1 year, and to my knowledge it has worked in the past. Unfortunately I don't have a record of when it was previously working.

Sean


From: USRP-users <usrp-users-bounces@lists.ettus.commailto:usrp-users-bounces@lists.ettus.com> on behalf of Marcus D. Leech via USRP-users <usrp-users@lists.ettus.commailto:usrp-users@lists.ettus.com>
Sent: Sunday, September 20, 2015 2:29 PM
To: usrp-users@lists.ettus.commailto:usrp-users@lists.ettus.com
Subject: Re: [USRP-users] B210 GPSDO 10 MHz Ref not locking, clock not syncing

Is this situation where it was previously working and stopped, or is this the first time you've had the GPSDO in the B210?

On 09/20/2015 11:35 AM, Nowlan, Sean via USRP-users wrote:
I have a B210 (original version with white circuit board) with a Jackson Labs GPSDO (TCXO version from Ettus Research). I'm having two problems, but apparent when running the query_gpsdo_sensors utility:

  1. USRP only sporadically locks to the GPSDO 10 MHz reference. On most runs of query_gpsdo_sensors, it does not report lock.
  2. The UHD clock isn't getting set according to GPS time. It's my understanding that when a GPSDO module is detected, this should happen automatically.

I've tried this both with and without 6V power. Also as far as I can tell the GPSDO module has been installed correctly. On a cold boot of the B210 and on running the first app that loads the B210 firmware, LEDs D3 and D4 on the GPSDO module and LED100 on the B210 illuminate briefly. A few minutes after cold boot, the GPSDO module starts to blink LED D4 on for 1 second and off for 1 second, which I assume has to do with GPS acquisition.

Other information:
Ubuntu 14.04.3 LTS
Boost 1.54
UHD 003.010.git-29-gbc80e972
FPGA image fetched by uhd_images_downloader utility

Output of query_gpsdo_sensors:

[...]
GPS Locked
USRP NOT Locked to GPSDO 10 MHz Reference.
Double check installation instructions (N2X0/E1X0 only): https://www.ettus.com/content/files/gpsdo-kit_4.pdf

GPS and UHD Device time are NOT aligned last_pps: 5 vs gps: 1442760419. Try re-running the program. Double check 1 PPS connection from GPSDO.

Printing available NMEA strings:
[...]
GPS epoch time: 1442760419 seconds
UHD Device time: 5 seconds
PC Clock time: 1442760419 seconds

Thanks,

Sean


USRP-users mailing list
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Is there a specific roll-back version of UHD that I should try? I currently don't have a breadboard or power supply to test the GPSDO module separately but I can look at the 10 MHz pin while the board is running on the B210. Sean ________________________________ From: Timothy Schaffer <reffahcs@gmail.com> Sent: Sunday, September 20, 2015 2:47 PM To: Nowlan, Sean Cc: Marcus D. Leech; USRP-users@lists.ettus.com Subject: Re: [USRP-users] B210 GPSDO 10 MHz Ref not locking, clock not syncing If the UHD roll-back doesn't work and you have the means to do so, you might try pulling the GPSDO off the board and testing it standalone. http://www.jackson-labs.com/assets/uploads/main/LC_XO_Manual.pdf the pinout for the module is on page 6 of the PDF, so you should be able to measure the 10MHz out directly from the GPSDO, as well as monitor the NMEA output. At the very least, I would think it would help you determine if the GPSDO is the problem, or your B210 is the problem. Cheers -Tim On Sun, Sep 20, 2015 at 9:34 PM, Nowlan, Sean via USRP-users <usrp-users@lists.ettus.com<mailto:usrp-users@lists.ettus.com>> wrote: ?It's been installed for perhaps 1 year, and to my knowledge it has worked in the past. Unfortunately I don't have a record of when it was previously working. Sean ________________________________ From: USRP-users <usrp-users-bounces@lists.ettus.com<mailto:usrp-users-bounces@lists.ettus.com>> on behalf of Marcus D. Leech via USRP-users <usrp-users@lists.ettus.com<mailto:usrp-users@lists.ettus.com>> Sent: Sunday, September 20, 2015 2:29 PM To: usrp-users@lists.ettus.com<mailto:usrp-users@lists.ettus.com> Subject: Re: [USRP-users] B210 GPSDO 10 MHz Ref not locking, clock not syncing Is this situation where it was previously working and stopped, or is this the first time you've had the GPSDO in the B210? On 09/20/2015 11:35 AM, Nowlan, Sean via USRP-users wrote: I have a B210 (original version with white circuit board) with a Jackson Labs GPSDO (TCXO version from Ettus Research). I'm having two problems, but apparent when running the query_gpsdo_sensors utility: 1) USRP only sporadically locks to the GPSDO 10 MHz reference. On most runs of query_gpsdo_sensors, it does not report lock. 2) The UHD clock isn't getting set according to GPS time. It's my understanding that when a GPSDO module is detected, this should happen automatically. I've tried this both with and without 6V power. Also as far as I can tell the GPSDO module has been installed correctly. On a cold boot of the B210 and on running the first app that loads the B210 firmware, LEDs D3 and D4 on the GPSDO module and LED100 on the B210 illuminate briefly. A few minutes after cold boot, the GPSDO module starts to blink LED D4 on for 1 second and off for 1 second, which I assume has to do with GPS acquisition. Other information: Ubuntu 14.04.3 LTS Boost 1.54 UHD 003.010.git-29-gbc80e972 FPGA image fetched by uhd_images_downloader utility Output of query_gpsdo_sensors: [...] GPS Locked USRP NOT Locked to GPSDO 10 MHz Reference. Double check installation instructions (N2X0/E1X0 only): https://www.ettus.com/content/files/gpsdo-kit_4.pdf GPS and UHD Device time are NOT aligned last_pps: 5 vs gps: 1442760419. Try re-running the program. Double check 1 PPS connection from GPSDO. Printing available NMEA strings: [...] GPS epoch time: 1442760419 seconds UHD Device time: 5 seconds PC Clock time: 1442760419 seconds Thanks, Sean _______________________________________________ USRP-users mailing list USRP-users@lists.ettus.com<mailto:USRP-users@lists.ettus.com> http://lists.ettus.com/mailman/listinfo/usrp-users_lists.ettus.com _______________________________________________ USRP-users mailing list USRP-users@lists.ettus.com<mailto:USRP-users@lists.ettus.com> http://lists.ettus.com/mailman/listinfo/usrp-users_lists.ettus.com
M
mleech@ripnet.com
Mon, Sep 21, 2015 2:58 PM

Could you try 3.8.5?

On 2015-09-21 09:26, Nowlan, Sean wrote:

Is there a specific roll-back version of UHD that I should try? I currently don't have a breadboard or power supply to test the GPSDO module separately but I can look at the 10 MHz pin while the board is running on the B210.

Sean


FROM: Timothy Schaffer reffahcs@gmail.com
SENT: Sunday, September 20, 2015 2:47 PM
TO: Nowlan, Sean
CC: Marcus D. Leech; USRP-users@lists.ettus.com
SUBJECT: Re: [USRP-users] B210 GPSDO 10 MHz Ref not locking, clock not syncing

If the UHD roll-back doesn't work and you have the means to do so, you might try pulling the GPSDO off the board and testing it standalone. http://www.jackson-labs.com/assets/uploads/main/LC_XO_Manual.pdf [2] the pinout for the module is on page 6 of the PDF, so you should be able to measure the 10MHz out directly from the GPSDO, as well as monitor the NMEA output. At the very least, I would think it would help you determine if the GPSDO is the problem, or your B210 is the problem.

Cheers
-Tim

On Sun, Sep 20, 2015 at 9:34 PM, Nowlan, Sean via USRP-users usrp-users@lists.ettus.com wrote:

​It's been installed for perhaps 1 year, and to my knowledge it has worked in the past. Unfortunately I don't have a record of when it was previously working.

Sean


FROM: USRP-users usrp-users-bounces@lists.ettus.com on behalf of Marcus D. Leech via USRP-users usrp-users@lists.ettus.com
SENT: Sunday, September 20, 2015 2:29 PM
TO: usrp-users@lists.ettus.com
SUBJECT: Re: [USRP-users] B210 GPSDO 10 MHz Ref not locking, clock not syncing

Is this situation where it was previously working and stopped, or is this the first time you've had the GPSDO in the B210?

On 09/20/2015 11:35 AM, Nowlan, Sean via USRP-users wrote:

I have a B210 (original version with white circuit board) with a Jackson Labs GPSDO (TCXO version from Ettus Research). I'm having two problems, but apparent when running the query_gpsdo_sensors utility:

  1. USRP only sporadically locks to the GPSDO 10 MHz reference. On most runs of query_gpsdo_sensors, it does not report lock.
  2. The UHD clock isn't getting set according to GPS time. It's my understanding that when a GPSDO module is detected, this should happen automatically.

I've tried this both with and without 6V power. Also as far as I can tell the GPSDO module has been installed correctly. On a cold boot of the B210 and on running the first app that loads the B210 firmware, LEDs D3 and D4 on the GPSDO module and LED100 on the B210 illuminate briefly. A few minutes after cold boot, the GPSDO module starts to blink LED D4 on for 1 second and off for 1 second, which I assume has to do with GPS acquisition.

Other information:
Ubuntu 14.04.3 LTS
Boost 1.54
UHD 003.010.git-29-gbc80e972
FPGA image fetched by uhd_images_downloader utility

Output of query_gpsdo_sensors:

[...]
GPS Locked
USRP NOT Locked to GPSDO 10 MHz Reference.
Double check installation instructions (N2X0/E1X0 only): https://www.ettus.com/content/files/gpsdo-kit_4.pdf [3]

GPS and UHD Device time are NOT aligned last_pps: 5 vs gps: 1442760419. Try re-running the program. Double check 1 PPS connection from GPSDO.

Printing available NMEA strings:
[...]
GPS epoch time: 1442760419 seconds
UHD Device time: 5 seconds
PC Clock time: 1442760419 seconds

Thanks,

Sean


USRP-users mailing list
USRP-users@lists.ettus.com
http://lists.ettus.com/mailman/listinfo/usrp-users_lists.ettus.com [1]


USRP-users mailing list
USRP-users@lists.ettus.com
http://lists.ettus.com/mailman/listinfo/usrp-users_lists.ettus.com [1]

Could you try 3.8.5? On 2015-09-21 09:26, Nowlan, Sean wrote: > Is there a specific roll-back version of UHD that I should try? I currently don't have a breadboard or power supply to test the GPSDO module separately but I can look at the 10 MHz pin while the board is running on the B210. > > Sean > > ------------------------- > > FROM: Timothy Schaffer <reffahcs@gmail.com> > SENT: Sunday, September 20, 2015 2:47 PM > TO: Nowlan, Sean > CC: Marcus D. Leech; USRP-users@lists.ettus.com > SUBJECT: Re: [USRP-users] B210 GPSDO 10 MHz Ref not locking, clock not syncing > > If the UHD roll-back doesn't work and you have the means to do so, you might try pulling the GPSDO off the board and testing it standalone. http://www.jackson-labs.com/assets/uploads/main/LC_XO_Manual.pdf [2] the pinout for the module is on page 6 of the PDF, so you should be able to measure the 10MHz out directly from the GPSDO, as well as monitor the NMEA output. At the very least, I would think it would help you determine if the GPSDO is the problem, or your B210 is the problem. > > Cheers > -Tim > > On Sun, Sep 20, 2015 at 9:34 PM, Nowlan, Sean via USRP-users <usrp-users@lists.ettus.com> wrote: > > ​It's been installed for perhaps 1 year, and to my knowledge it has worked in the past. Unfortunately I don't have a record of when it was previously working. > > Sean > > ------------------------- > > FROM: USRP-users <usrp-users-bounces@lists.ettus.com> on behalf of Marcus D. Leech via USRP-users <usrp-users@lists.ettus.com> > SENT: Sunday, September 20, 2015 2:29 PM > TO: usrp-users@lists.ettus.com > SUBJECT: Re: [USRP-users] B210 GPSDO 10 MHz Ref not locking, clock not syncing > > Is this situation where it was previously working and stopped, or is this the first time you've had the GPSDO in the B210? > > On 09/20/2015 11:35 AM, Nowlan, Sean via USRP-users wrote: > > I have a B210 (original version with white circuit board) with a Jackson Labs GPSDO (TCXO version from Ettus Research). I'm having two problems, but apparent when running the query_gpsdo_sensors utility: > > 1) USRP only sporadically locks to the GPSDO 10 MHz reference. On most runs of query_gpsdo_sensors, it does not report lock. > 2) The UHD clock isn't getting set according to GPS time. It's my understanding that when a GPSDO module is detected, this should happen automatically. > > I've tried this both with and without 6V power. Also as far as I can tell the GPSDO module has been installed correctly. On a cold boot of the B210 and on running the first app that loads the B210 firmware, LEDs D3 and D4 on the GPSDO module and LED100 on the B210 illuminate briefly. A few minutes after cold boot, the GPSDO module starts to blink LED D4 on for 1 second and off for 1 second, which I assume has to do with GPS acquisition. > > Other information: > Ubuntu 14.04.3 LTS > Boost 1.54 > UHD 003.010.git-29-gbc80e972 > FPGA image fetched by uhd_images_downloader utility > > Output of query_gpsdo_sensors: > > [...] > GPS Locked > USRP NOT Locked to GPSDO 10 MHz Reference. > Double check installation instructions (N2X0/E1X0 only): https://www.ettus.com/content/files/gpsdo-kit_4.pdf [3] > > GPS and UHD Device time are NOT aligned last_pps: 5 vs gps: 1442760419. Try re-running the program. Double check 1 PPS connection from GPSDO. > > Printing available NMEA strings: > [...] > GPS epoch time: 1442760419 seconds > UHD Device time: 5 seconds > PC Clock time: 1442760419 seconds > > Thanks, > > Sean > > _______________________________________________ > USRP-users mailing list > USRP-users@lists.ettus.com > http://lists.ettus.com/mailman/listinfo/usrp-users_lists.ettus.com [1] > > _______________________________________________ > USRP-users mailing list > USRP-users@lists.ettus.com > http://lists.ettus.com/mailman/listinfo/usrp-users_lists.ettus.com [1] Links: ------ [1] http://lists.ettus.com/mailman/listinfo/usrp-users_lists.ettus.com [2] http://www.jackson-labs.com/assets/uploads/main/LC_XO_Manual.pdf [3] https://www.ettus.com/content/files/gpsdo-kit_4.pdf
NS
Nowlan, Sean
Mon, Sep 21, 2015 8:20 PM

Looks good with UHD 3.8.5. Locked to GPS within 4 or 5 minutes, UHD Device time is correct, and 10 MHz Ref always locks.

GPS Locked
USRP Locked to GPSDO 10 MHz Reference.
GPS and UHD Device time are aligned.
Printing available NMEA strings:
GPS_GPGGA: [...]
GPS_GPRMC: [...]
GPS epoch time: 1442866737 seconds
UHD Device time: 1442866737 seconds
PC Clock time: 1442866737 seconds

​Sean


From: mleech@ripnet.com mleech@ripnet.com
Sent: Monday, September 21, 2015 10:58 AM
To: Nowlan, Sean
Cc: Timothy Schaffer; USRP-users@lists.ettus.com
Subject: Re: [USRP-users] B210 GPSDO 10 MHz Ref not locking, clock not syncing

Could you try 3.8.5?

On 2015-09-21 09:26, Nowlan, Sean wrote:

Is there a specific roll-back version of UHD that I should try? I currently don't have a breadboard or power supply to test the GPSDO module separately but I can look at the 10 MHz pin while the board is running on the B210.

Sean


From: Timothy Schaffer reffahcs@gmail.com
Sent: Sunday, September 20, 2015 2:47 PM
To: Nowlan, Sean
Cc: Marcus D. Leech; USRP-users@lists.ettus.com
Subject: Re: [USRP-users] B210 GPSDO 10 MHz Ref not locking, clock not syncing

If the UHD roll-back doesn't work and you have the means to do so, you might try pulling the GPSDO off the board and testing it standalone. http://www.jackson-labs.com/assets/uploads/main/LC_XO_Manual.pdf  the pinout for the module is on page 6 of the PDF, so you should be able to measure the 10MHz out directly from the GPSDO, as well as monitor the NMEA output. At the very least, I would think it would help you determine if the GPSDO is the problem, or your B210 is the problem.

Cheers
-Tim

On Sun, Sep 20, 2015 at 9:34 PM, Nowlan, Sean via USRP-users <usrp-users@lists.ettus.commailto:usrp-users@lists.ettus.com> wrote:

​It's been installed for perhaps 1 year, and to my knowledge it has worked in the past. Unfortunately I don't have a record of when it was previously working.

Sean


From: USRP-users <usrp-users-bounces@lists.ettus.commailto:usrp-users-bounces@lists.ettus.com> on behalf of Marcus D. Leech via USRP-users <usrp-users@lists.ettus.commailto:usrp-users@lists.ettus.com>
Sent: Sunday, September 20, 2015 2:29 PM
To: usrp-users@lists.ettus.commailto:usrp-users@lists.ettus.com
Subject: Re: [USRP-users] B210 GPSDO 10 MHz Ref not locking, clock not syncing

Is this situation where it was previously working and stopped, or is this the first time you've had the GPSDO in the B210?

On 09/20/2015 11:35 AM, Nowlan, Sean via USRP-users wrote:
I have a B210 (original version with white circuit board) with a Jackson Labs GPSDO (TCXO version from Ettus Research). I'm having two problems, but apparent when running the query_gpsdo_sensors utility:

  1. USRP only sporadically locks to the GPSDO 10 MHz reference. On most runs of query_gpsdo_sensors, it does not report lock.
  2. The UHD clock isn't getting set according to GPS time. It's my understanding that when a GPSDO module is detected, this should happen automatically.

I've tried this both with and without 6V power. Also as far as I can tell the GPSDO module has been installed correctly. On a cold boot of the B210 and on running the first app that loads the B210 firmware, LEDs D3 and D4 on the GPSDO module and LED100 on the B210 illuminate briefly. A few minutes after cold boot, the GPSDO module starts to blink LED D4 on for 1 second and off for 1 second, which I assume has to do with GPS acquisition.

Other information:
Ubuntu 14.04.3 LTS
Boost 1.54
UHD 003.010.git-29-gbc80e972
FPGA image fetched by uhd_images_downloader utility

Output of query_gpsdo_sensors:

[...]
GPS Locked
USRP NOT Locked to GPSDO 10 MHz Reference.
Double check installation instructions (N2X0/E1X0 only): https://www.ettus.com/content/files/gpsdo-kit_4.pdf

GPS and UHD Device time are NOT aligned last_pps: 5 vs gps: 1442760419. Try re-running the program. Double check 1 PPS connection from GPSDO.

Printing available NMEA strings:
[...]
GPS epoch time: 1442760419 seconds
UHD Device time: 5 seconds
PC Clock time: 1442760419 seconds

Thanks,

Sean


USRP-users mailing list
USRP-users@lists.ettus.commailto:USRP-users@lists.ettus.com
http://lists.ettus.com/mailman/listinfo/usrp-users_lists.ettus.com


USRP-users mailing list
USRP-users@lists.ettus.commailto:USRP-users@lists.ettus.com
http://lists.ettus.com/mailman/listinfo/usrp-users_lists.ettus.com

Looks good with UHD 3.8.5. Locked to GPS within 4 or 5 minutes, UHD Device time is correct, and 10 MHz Ref always locks. GPS Locked USRP Locked to GPSDO 10 MHz Reference. GPS and UHD Device time are aligned. Printing available NMEA strings: GPS_GPGGA: [...] GPS_GPRMC: [...] GPS epoch time: 1442866737 seconds UHD Device time: 1442866737 seconds PC Clock time: 1442866737 seconds ​Sean ________________________________ From: mleech@ripnet.com <mleech@ripnet.com> Sent: Monday, September 21, 2015 10:58 AM To: Nowlan, Sean Cc: Timothy Schaffer; USRP-users@lists.ettus.com Subject: Re: [USRP-users] B210 GPSDO 10 MHz Ref not locking, clock not syncing Could you try 3.8.5? On 2015-09-21 09:26, Nowlan, Sean wrote: Is there a specific roll-back version of UHD that I should try? I currently don't have a breadboard or power supply to test the GPSDO module separately but I can look at the 10 MHz pin while the board is running on the B210. Sean ________________________________ From: Timothy Schaffer <reffahcs@gmail.com> Sent: Sunday, September 20, 2015 2:47 PM To: Nowlan, Sean Cc: Marcus D. Leech; USRP-users@lists.ettus.com Subject: Re: [USRP-users] B210 GPSDO 10 MHz Ref not locking, clock not syncing If the UHD roll-back doesn't work and you have the means to do so, you might try pulling the GPSDO off the board and testing it standalone. http://www.jackson-labs.com/assets/uploads/main/LC_XO_Manual.pdf the pinout for the module is on page 6 of the PDF, so you should be able to measure the 10MHz out directly from the GPSDO, as well as monitor the NMEA output. At the very least, I would think it would help you determine if the GPSDO is the problem, or your B210 is the problem. Cheers -Tim On Sun, Sep 20, 2015 at 9:34 PM, Nowlan, Sean via USRP-users <usrp-users@lists.ettus.com<mailto:usrp-users@lists.ettus.com>> wrote: ​It's been installed for perhaps 1 year, and to my knowledge it has worked in the past. Unfortunately I don't have a record of when it was previously working. Sean ________________________________ From: USRP-users <usrp-users-bounces@lists.ettus.com<mailto:usrp-users-bounces@lists.ettus.com>> on behalf of Marcus D. Leech via USRP-users <usrp-users@lists.ettus.com<mailto:usrp-users@lists.ettus.com>> Sent: Sunday, September 20, 2015 2:29 PM To: usrp-users@lists.ettus.com<mailto:usrp-users@lists.ettus.com> Subject: Re: [USRP-users] B210 GPSDO 10 MHz Ref not locking, clock not syncing Is this situation where it was previously working and stopped, or is this the first time you've had the GPSDO in the B210? On 09/20/2015 11:35 AM, Nowlan, Sean via USRP-users wrote: I have a B210 (original version with white circuit board) with a Jackson Labs GPSDO (TCXO version from Ettus Research). I'm having two problems, but apparent when running the query_gpsdo_sensors utility: 1) USRP only sporadically locks to the GPSDO 10 MHz reference. On most runs of query_gpsdo_sensors, it does not report lock. 2) The UHD clock isn't getting set according to GPS time. It's my understanding that when a GPSDO module is detected, this should happen automatically. I've tried this both with and without 6V power. Also as far as I can tell the GPSDO module has been installed correctly. On a cold boot of the B210 and on running the first app that loads the B210 firmware, LEDs D3 and D4 on the GPSDO module and LED100 on the B210 illuminate briefly. A few minutes after cold boot, the GPSDO module starts to blink LED D4 on for 1 second and off for 1 second, which I assume has to do with GPS acquisition. Other information: Ubuntu 14.04.3 LTS Boost 1.54 UHD 003.010.git-29-gbc80e972 FPGA image fetched by uhd_images_downloader utility Output of query_gpsdo_sensors: [...] GPS Locked USRP NOT Locked to GPSDO 10 MHz Reference. Double check installation instructions (N2X0/E1X0 only): https://www.ettus.com/content/files/gpsdo-kit_4.pdf GPS and UHD Device time are NOT aligned last_pps: 5 vs gps: 1442760419. Try re-running the program. Double check 1 PPS connection from GPSDO. Printing available NMEA strings: [...] GPS epoch time: 1442760419 seconds UHD Device time: 5 seconds PC Clock time: 1442760419 seconds Thanks, Sean _______________________________________________ USRP-users mailing list USRP-users@lists.ettus.com<mailto:USRP-users@lists.ettus.com> http://lists.ettus.com/mailman/listinfo/usrp-users_lists.ettus.com _______________________________________________ USRP-users mailing list USRP-users@lists.ettus.com<mailto:USRP-users@lists.ettus.com> http://lists.ettus.com/mailman/listinfo/usrp-users_lists.ettus.com
M
mleech@ripnet.com
Mon, Sep 21, 2015 8:31 PM

Well, perhaps someone from R&D could comment possible breakage in this
part of the code UHD 3.10.X isn't a released UHD yet, so maybe something
snuck in.

On 2015-09-21 16:20, Nowlan, Sean wrote:

Looks good with UHD 3.8.5. Locked to GPS within 4 or 5 minutes, UHD Device time is correct, and 10 MHz Ref always locks.

GPS Locked
USRP Locked to GPSDO 10 MHz Reference.
GPS and UHD Device time are aligned.
Printing available NMEA strings:
GPS_GPGGA: [...]
GPS_GPRMC: [...]
GPS epoch time: 1442866737 seconds
UHD Device time: 1442866737 seconds
PC Clock time: 1442866737 seconds

​Sean


FROM: mleech@ripnet.com mleech@ripnet.com
SENT: Monday, September 21, 2015 10:58 AM
TO: Nowlan, Sean
CC: Timothy Schaffer; USRP-users@lists.ettus.com
SUBJECT: Re: [USRP-users] B210 GPSDO 10 MHz Ref not locking, clock not syncing

Could you try 3.8.5?

On 2015-09-21 09:26, Nowlan, Sean wrote:

Is there a specific roll-back version of UHD that I should try? I currently don't have a breadboard or power supply to test the GPSDO module separately but I can look at the 10 MHz pin while the board is running on the B210.

Sean


FROM: Timothy Schaffer reffahcs@gmail.com
SENT: Sunday, September 20, 2015 2:47 PM
TO: Nowlan, Sean
CC: Marcus D. Leech; USRP-users@lists.ettus.com
SUBJECT: Re: [USRP-users] B210 GPSDO 10 MHz Ref not locking, clock not syncing

If the UHD roll-back doesn't work and you have the means to do so, you might try pulling the GPSDO off the board and testing it standalone. http://www.jackson-labs.com/assets/uploads/main/LC_XO_Manual.pdf [2] the pinout for the module is on page 6 of the PDF, so you should be able to measure the 10MHz out directly from the GPSDO, as well as monitor the NMEA output. At the very least, I would think it would help you determine if the GPSDO is the problem, or your B210 is the problem.

Cheers
-Tim

On Sun, Sep 20, 2015 at 9:34 PM, Nowlan, Sean via USRP-users usrp-users@lists.ettus.com wrote:

​It's been installed for perhaps 1 year, and to my knowledge it has worked in the past. Unfortunately I don't have a record of when it was previously working.

Sean


FROM: USRP-users usrp-users-bounces@lists.ettus.com on behalf of Marcus D. Leech via USRP-users usrp-users@lists.ettus.com
SENT: Sunday, September 20, 2015 2:29 PM
TO: usrp-users@lists.ettus.com
SUBJECT: Re: [USRP-users] B210 GPSDO 10 MHz Ref not locking, clock not syncing

Is this situation where it was previously working and stopped, or is this the first time you've had the GPSDO in the B210?

On 09/20/2015 11:35 AM, Nowlan, Sean via USRP-users wrote:

I have a B210 (original version with white circuit board) with a Jackson Labs GPSDO (TCXO version from Ettus Research). I'm having two problems, but apparent when running the query_gpsdo_sensors utility:

  1. USRP only sporadically locks to the GPSDO 10 MHz reference. On most runs of query_gpsdo_sensors, it does not report lock.
  2. The UHD clock isn't getting set according to GPS time. It's my understanding that when a GPSDO module is detected, this should happen automatically.

I've tried this both with and without 6V power. Also as far as I can tell the GPSDO module has been installed correctly. On a cold boot of the B210 and on running the first app that loads the B210 firmware, LEDs D3 and D4 on the GPSDO module and LED100 on the B210 illuminate briefly. A few minutes after cold boot, the GPSDO module starts to blink LED D4 on for 1 second and off for 1 second, which I assume has to do with GPS acquisition.

Other information:
Ubuntu 14.04.3 LTS
Boost 1.54
UHD 003.010.git-29-gbc80e972
FPGA image fetched by uhd_images_downloader utility

Output of query_gpsdo_sensors:

[...]
GPS Locked
USRP NOT Locked to GPSDO 10 MHz Reference.
Double check installation instructions (N2X0/E1X0 only): https://www.ettus.com/content/files/gpsdo-kit_4.pdf [3]

GPS and UHD Device time are NOT aligned last_pps: 5 vs gps: 1442760419. Try re-running the program. Double check 1 PPS connection from GPSDO.

Printing available NMEA strings:
[...]
GPS epoch time: 1442760419 seconds
UHD Device time: 5 seconds
PC Clock time: 1442760419 seconds

Thanks,

Sean


USRP-users mailing list
USRP-users@lists.ettus.com
http://lists.ettus.com/mailman/listinfo/usrp-users_lists.ettus.com [1]


USRP-users mailing list
USRP-users@lists.ettus.com
http://lists.ettus.com/mailman/listinfo/usrp-users_lists.ettus.com [1]

Well, perhaps someone from R&D could comment possible breakage in this part of the code UHD 3.10.X isn't a released UHD yet, so maybe something snuck in. On 2015-09-21 16:20, Nowlan, Sean wrote: > Looks good with UHD 3.8.5. Locked to GPS within 4 or 5 minutes, UHD Device time is correct, and 10 MHz Ref always locks. > > GPS Locked > USRP Locked to GPSDO 10 MHz Reference. > GPS and UHD Device time are aligned. > Printing available NMEA strings: > GPS_GPGGA: [...] > GPS_GPRMC: [...] > GPS epoch time: 1442866737 seconds > UHD Device time: 1442866737 seconds > PC Clock time: 1442866737 seconds > > ​Sean > > ------------------------- > > FROM: mleech@ripnet.com <mleech@ripnet.com> > SENT: Monday, September 21, 2015 10:58 AM > TO: Nowlan, Sean > CC: Timothy Schaffer; USRP-users@lists.ettus.com > SUBJECT: Re: [USRP-users] B210 GPSDO 10 MHz Ref not locking, clock not syncing > > Could you try 3.8.5? > > On 2015-09-21 09:26, Nowlan, Sean wrote: > > Is there a specific roll-back version of UHD that I should try? I currently don't have a breadboard or power supply to test the GPSDO module separately but I can look at the 10 MHz pin while the board is running on the B210. > > Sean > > ------------------------- > > FROM: Timothy Schaffer <reffahcs@gmail.com> > SENT: Sunday, September 20, 2015 2:47 PM > TO: Nowlan, Sean > CC: Marcus D. Leech; USRP-users@lists.ettus.com > SUBJECT: Re: [USRP-users] B210 GPSDO 10 MHz Ref not locking, clock not syncing > > If the UHD roll-back doesn't work and you have the means to do so, you might try pulling the GPSDO off the board and testing it standalone. http://www.jackson-labs.com/assets/uploads/main/LC_XO_Manual.pdf [2] the pinout for the module is on page 6 of the PDF, so you should be able to measure the 10MHz out directly from the GPSDO, as well as monitor the NMEA output. At the very least, I would think it would help you determine if the GPSDO is the problem, or your B210 is the problem. > > Cheers > -Tim > > On Sun, Sep 20, 2015 at 9:34 PM, Nowlan, Sean via USRP-users <usrp-users@lists.ettus.com> wrote: > > ​It's been installed for perhaps 1 year, and to my knowledge it has worked in the past. Unfortunately I don't have a record of when it was previously working. > > Sean > > ------------------------- > > FROM: USRP-users <usrp-users-bounces@lists.ettus.com> on behalf of Marcus D. Leech via USRP-users <usrp-users@lists.ettus.com> > SENT: Sunday, September 20, 2015 2:29 PM > TO: usrp-users@lists.ettus.com > SUBJECT: Re: [USRP-users] B210 GPSDO 10 MHz Ref not locking, clock not syncing > > Is this situation where it was previously working and stopped, or is this the first time you've had the GPSDO in the B210? > > On 09/20/2015 11:35 AM, Nowlan, Sean via USRP-users wrote: > > I have a B210 (original version with white circuit board) with a Jackson Labs GPSDO (TCXO version from Ettus Research). I'm having two problems, but apparent when running the query_gpsdo_sensors utility: > > 1) USRP only sporadically locks to the GPSDO 10 MHz reference. On most runs of query_gpsdo_sensors, it does not report lock. > 2) The UHD clock isn't getting set according to GPS time. It's my understanding that when a GPSDO module is detected, this should happen automatically. > > I've tried this both with and without 6V power. Also as far as I can tell the GPSDO module has been installed correctly. On a cold boot of the B210 and on running the first app that loads the B210 firmware, LEDs D3 and D4 on the GPSDO module and LED100 on the B210 illuminate briefly. A few minutes after cold boot, the GPSDO module starts to blink LED D4 on for 1 second and off for 1 second, which I assume has to do with GPS acquisition. > > Other information: > Ubuntu 14.04.3 LTS > Boost 1.54 > UHD 003.010.git-29-gbc80e972 > FPGA image fetched by uhd_images_downloader utility > > Output of query_gpsdo_sensors: > > [...] > GPS Locked > USRP NOT Locked to GPSDO 10 MHz Reference. > Double check installation instructions (N2X0/E1X0 only): https://www.ettus.com/content/files/gpsdo-kit_4.pdf [3] > > GPS and UHD Device time are NOT aligned last_pps: 5 vs gps: 1442760419. Try re-running the program. Double check 1 PPS connection from GPSDO. > > Printing available NMEA strings: > [...] > GPS epoch time: 1442760419 seconds > UHD Device time: 5 seconds > PC Clock time: 1442760419 seconds > > Thanks, > > Sean > > _______________________________________________ > USRP-users mailing list > USRP-users@lists.ettus.com > http://lists.ettus.com/mailman/listinfo/usrp-users_lists.ettus.com [1] > > _______________________________________________ > USRP-users mailing list > USRP-users@lists.ettus.com > http://lists.ettus.com/mailman/listinfo/usrp-users_lists.ettus.com [1] Links: ------ [1] http://lists.ettus.com/mailman/listinfo/usrp-users_lists.ettus.com [2] http://www.jackson-labs.com/assets/uploads/main/LC_XO_Manual.pdf [3] https://www.ettus.com/content/files/gpsdo-kit_4.pdf
TS
Timothy Schaffer
Mon, Sep 21, 2015 8:33 PM

I believe there was new code for a GPSD module within the UHD drivers that
was added sometime recently?

On Mon, Sep 21, 2015 at 11:31 PM, mleech@ripnet.com wrote:

Well, perhaps someone from R&D could comment possible breakage in this
part of the code UHD 3.10.X isn't a released UHD yet, so maybe something
snuck in.

On 2015-09-21 16:20, Nowlan, Sean wrote:

Looks good with UHD 3.8.5. Locked to GPS within 4 or 5 minutes, UHD Device
time is correct, and 10 MHz Ref always locks.

GPS Locked
USRP Locked to GPSDO 10 MHz Reference.
GPS and UHD Device time are aligned.
Printing available NMEA strings:
GPS_GPGGA: [...]
GPS_GPRMC: [...]
GPS epoch time: 1442866737 seconds
UHD Device time: 1442866737 seconds
PC Clock time: 1442866737 seconds

​Sean


From: mleech@ripnet.com mleech@ripnet.com
Sent: Monday, September 21, 2015 10:58 AM
To: Nowlan, Sean
Cc: Timothy Schaffer; USRP-users@lists.ettus.com
Subject: Re: [USRP-users] B210 GPSDO 10 MHz Ref not locking, clock not
syncing

Could you try 3.8.5?

On 2015-09-21 09:26, Nowlan, Sean wrote:

Is there a specific roll-back version of UHD that I should try? I
currently don't have a breadboard or power supply to test the GPSDO module
separately but I can look at the 10 MHz pin while the board is running on
the B210.

Sean


From: Timothy Schaffer reffahcs@gmail.com
Sent: Sunday, September 20, 2015 2:47 PM
To: Nowlan, Sean
Cc: Marcus D. Leech; USRP-users@lists.ettus.com
Subject: Re: [USRP-users] B210 GPSDO 10 MHz Ref not locking, clock not
syncing

If the UHD roll-back doesn't work and you have the means to do so, you
might try pulling the GPSDO off the board and testing it standalone.
http://www.jackson-labs.com/assets/uploads/main/LC_XO_Manual.pdf  the
pinout for the module is on page 6 of the PDF, so you should be able to
measure the 10MHz out directly from the GPSDO, as well as monitor the NMEA
output. At the very least, I would think it would help you determine if the
GPSDO is the problem, or your B210 is the problem.

Cheers
-Tim

On Sun, Sep 20, 2015 at 9:34 PM, Nowlan, Sean via USRP-users <
usrp-users@lists.ettus.com> wrote:

​It's been installed for perhaps 1 year, and to my knowledge it has
worked in the past. Unfortunately I don't have a record of when it was
previously working.

Sean


From: USRP-users usrp-users-bounces@lists.ettus.com on behalf of
Marcus D. Leech via USRP-users usrp-users@lists.ettus.com
Sent: Sunday, September 20, 2015 2:29 PM
To: usrp-users@lists.ettus.com
Subject: Re: [USRP-users] B210 GPSDO 10 MHz Ref not locking, clock not
syncing

Is this situation where it was previously working and stopped, or is this
the first time you've had the GPSDO in the B210?

On 09/20/2015 11:35 AM, Nowlan, Sean via USRP-users wrote:

I have a B210 (original version with white circuit board) with a Jackson
Labs GPSDO (TCXO version from Ettus Research). I'm having two problems, but
apparent when running the query_gpsdo_sensors utility:

  1. USRP only sporadically locks to the GPSDO 10 MHz reference. On most
    runs of query_gpsdo_sensors, it does not report lock.
  2. The UHD clock isn't getting set according to GPS time. It's my
    understanding that when a GPSDO module is detected, this should
    happen automatically.

I've tried this both with and without 6V power. Also as far as I can tell
the GPSDO module has been installed correctly. On a cold boot of the B210
and on running the first app that loads the B210 firmware, LEDs D3 and D4
on the GPSDO module and LED100 on the B210 illuminate briefly. A few
minutes after cold boot, the GPSDO module starts to blink LED D4 on for 1
second and off for 1 second, which I assume has to do with GPS acquisition.

Other information:
Ubuntu 14.04.3 LTS
Boost 1.54
UHD 003.010.git-29-gbc80e972
FPGA image fetched by uhd_images_downloader utility

Output of query_gpsdo_sensors:

[...]
GPS Locked
USRP NOT Locked to GPSDO 10 MHz Reference.
Double check installation instructions (N2X0/E1X0 only):
https://www.ettus.com/content/files/gpsdo-kit_4.pdf

GPS and UHD Device time are NOT aligned last_pps: 5 vs gps: 1442760419.
Try re-running the program. Double check 1 PPS connection from GPSDO.

Printing available NMEA strings:
[...]
GPS epoch time: 1442760419 seconds
UHD Device time: 5 seconds
PC Clock time: 1442760419 seconds

Thanks,

Sean


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I believe there was new code for a GPSD module within the UHD drivers that was added sometime recently? On Mon, Sep 21, 2015 at 11:31 PM, <mleech@ripnet.com> wrote: > Well, perhaps someone from R&D could comment possible breakage in this > part of the code UHD 3.10.X isn't a released UHD yet, so maybe something > snuck in. > > > > > On 2015-09-21 16:20, Nowlan, Sean wrote: > > > Looks good with UHD 3.8.5. Locked to GPS within 4 or 5 minutes, UHD Device > time is correct, and 10 MHz Ref always locks. > > GPS Locked > USRP Locked to GPSDO 10 MHz Reference. > GPS and UHD Device time are aligned. > Printing available NMEA strings: > GPS_GPGGA: [...] > GPS_GPRMC: [...] > GPS epoch time: 1442866737 seconds > UHD Device time: 1442866737 seconds > PC Clock time: 1442866737 seconds > > ​Sean > > ------------------------------ > *From:* mleech@ripnet.com <mleech@ripnet.com> > *Sent:* Monday, September 21, 2015 10:58 AM > *To:* Nowlan, Sean > *Cc:* Timothy Schaffer; USRP-users@lists.ettus.com > *Subject:* Re: [USRP-users] B210 GPSDO 10 MHz Ref not locking, clock not > syncing > > > Could you try 3.8.5? > > > > > > > On 2015-09-21 09:26, Nowlan, Sean wrote: > > Is there a specific roll-back version of UHD that I should try? I > currently don't have a breadboard or power supply to test the GPSDO module > separately but I can look at the 10 MHz pin while the board is running on > the B210. > > > > Sean > > > ------------------------------ > *From:* Timothy Schaffer <reffahcs@gmail.com> > *Sent:* Sunday, September 20, 2015 2:47 PM > *To:* Nowlan, Sean > *Cc:* Marcus D. Leech; USRP-users@lists.ettus.com > *Subject:* Re: [USRP-users] B210 GPSDO 10 MHz Ref not locking, clock not > syncing > > If the UHD roll-back doesn't work and you have the means to do so, you > might try pulling the GPSDO off the board and testing it standalone. > http://www.jackson-labs.com/assets/uploads/main/LC_XO_Manual.pdf the > pinout for the module is on page 6 of the PDF, so you should be able to > measure the 10MHz out directly from the GPSDO, as well as monitor the NMEA > output. At the very least, I would think it would help you determine if the > GPSDO is the problem, or your B210 is the problem. > > Cheers > -Tim > > On Sun, Sep 20, 2015 at 9:34 PM, Nowlan, Sean via USRP-users < > usrp-users@lists.ettus.com> wrote: > >> ​It's been installed for perhaps 1 year, and to my knowledge it has >> worked in the past. Unfortunately I don't have a record of when it was >> previously working. >> >> >> >> Sean >> >> >> ------------------------------ >> *From:* USRP-users <usrp-users-bounces@lists.ettus.com> on behalf of >> Marcus D. Leech via USRP-users <usrp-users@lists.ettus.com> >> *Sent:* Sunday, September 20, 2015 2:29 PM >> *To:* usrp-users@lists.ettus.com >> *Subject:* Re: [USRP-users] B210 GPSDO 10 MHz Ref not locking, clock not >> syncing >> >> Is this situation where it was previously working and stopped, or is this >> the first time you've had the GPSDO in the B210? >> >> >> >> On 09/20/2015 11:35 AM, Nowlan, Sean via USRP-users wrote: >> >> I have a B210 (original version with white circuit board) with a Jackson >> Labs GPSDO (TCXO version from Ettus Research). I'm having two problems, but >> apparent when running the query_gpsdo_sensors utility: >> >> 1) USRP only sporadically locks to the GPSDO 10 MHz reference. On most >> runs of query_gpsdo_sensors, it does not report lock. >> 2) The UHD clock isn't getting set according to GPS time. It's my >> understanding that when a GPSDO module is detected, this should >> happen automatically. >> >> I've tried this both with and without 6V power. Also as far as I can tell >> the GPSDO module has been installed correctly. On a cold boot of the B210 >> and on running the first app that loads the B210 firmware, LEDs D3 and D4 >> on the GPSDO module and LED100 on the B210 illuminate briefly. A few >> minutes after cold boot, the GPSDO module starts to blink LED D4 on for 1 >> second and off for 1 second, which I assume has to do with GPS acquisition. >> >> Other information: >> Ubuntu 14.04.3 LTS >> Boost 1.54 >> UHD 003.010.git-29-gbc80e972 >> FPGA image fetched by uhd_images_downloader utility >> >> Output of query_gpsdo_sensors: >> >> [...] >> GPS Locked >> USRP NOT Locked to GPSDO 10 MHz Reference. >> Double check installation instructions (N2X0/E1X0 only): >> https://www.ettus.com/content/files/gpsdo-kit_4.pdf >> >> GPS and UHD Device time are NOT aligned last_pps: 5 vs gps: 1442760419. >> Try re-running the program. Double check 1 PPS connection from GPSDO. >> >> Printing available NMEA strings: >> [...] >> GPS epoch time: 1442760419 seconds >> UHD Device time: 5 seconds >> PC Clock time: 1442760419 seconds >> >> >> Thanks, >> >> Sean >> >> _______________________________________________ >> USRP-users mailing listUSRP-users@lists.ettus.comhttp://lists.ettus.com/mailman/listinfo/usrp-users_lists.ettus.com >> >> >> _______________________________________________ >> USRP-users mailing list >> USRP-users@lists.ettus.com >> http://lists.ettus.com/mailman/listinfo/usrp-users_lists.ettus.com >> >>