On 09/10/2020 12:12 PM, Xiang Ma wrote:
I double checked the installation, I think it is ok. When I start the
USRP,
There will be two green lights on, several seconds later, 1 light off,
and 1-2 seconds later, another light is also off.
also if there is a GPSDO installation problem, why /[INFO] [GPS] Found
an internal GPSDO: LC_XO, Firmware Rev 0.929b appears?/
/Because it can "find" the GPSDO and there can still be problems with
the electrical interface to it. There are several signals between the
motherboard and the GPSDO module. So, if the NMEA signals work, the
motherboard can still "find" the GPSDO, but other things will
go wrong despite that. That's what the message at the bottom of your
test shows--it cannot see the GPSDO-Locked signal--which in this
case might be expected, since you reported that you're running this
inside a building--no GPS LOCK is possible in that case, since the GPSDO
cannot see the sky (and, hence, the satellites that provide GPS service).
/
/
/
Thanks.
On Thu, Sep 10, 2020 at 10:07 AM Marcus D Leech
<[email protected] <mailto:[email protected]>> wrote:
To me the message at the end suggests even more strongly that
there’s a hardware problem with the GPSDO installation.
Sent from my iPhone
On Sep 10, 2020, at 11:50 AM, Xiang Ma <[email protected]
<mailto:[email protected]>> wrote:
But you can see there is an info:
/[INFO] [GPS] Found an internal GPSDO: LC_XO, Firmware Rev 0.929b/
Also, when I run /usr/local/lib/uhd/examples/sync_to_gps
It shows:
Creating the USRP device with: ...
[INFO] [UHD] linux; GNU C++ version 7.5.0; Boost_106501;
UHD_3.15.0.HEAD-0-gaea0e2de
[INFO] [X300] X300 initialization sequence...
[INFO] [X300] Maximum frame size: 1472 bytes.
[INFO] [X300] Radio 1x clock: 200 MHz
[INFO] [GPS] Found an internal GPSDO: LC_XO, Firmware Rev 0.929b
[INFO] [0/DmaFIFO_0] Initializing block control (NOC ID:
0xF1F0D00000000000)
[INFO] [0/DmaFIFO_0] BIST passed (Throughput: 1300 MB/s)
[INFO] [0/DmaFIFO_0] BIST passed (Throughput: 1317 MB/s)
[INFO] [0/Radio_0] Initializing block control (NOC ID:
0x12AD100000000001)
[INFO] [0/Radio_1] Initializing block control (NOC ID:
0x12AD100000000001)
[INFO] [0/DDC_0] Initializing block control (NOC ID:
0xDDC0000000000000)
[INFO] [0/DDC_1] Initializing block control (NOC ID:
0xDDC0000000000000)
[INFO] [0/DUC_0] Initializing block control (NOC ID:
0xD0C0000000000000)
[INFO] [0/DUC_1] Initializing block control (NOC ID:
0xD0C0000000000000)
Using Device: Single USRP:
Device: X-Series Device
Mboard 0: X310
RX Channel: 0
RX DSP: 0
RX Dboard: A
RX Subdev: UBX RX
RX Channel: 1
RX DSP: 0
RX Dboard: B
RX Subdev: UBX RX
TX Channel: 0
TX DSP: 0
TX Dboard: A
TX Subdev: UBX TX
TX Channel: 1
TX DSP: 0
TX Dboard: B
TX Subdev: UBX TX
Synchronizing mboard 0: X310
**************************************Helpful Notes on Clock/PPS
Selection**************************************
As you can see, the default 10 MHz Reference and 1 PPS signals
are now from the GPSDO.
If you would like to use the internal reference(TCXO) in other
applications, you must configure that explicitly.
You can no longer select the external SMAs for 10 MHz or 1 PPS
signaling.
****************************************************************************************************************
Waiting for reference lock...LOCKED
Error: ValueError: locked(): unable to determine GPS lock
statusThis could mean that you have not installed the GPSDO
correctly.
Visit one of these pages if the problem persists:
* N2X0/E1X0: http://files.ettus.com/manual/page_gpsdo.html *
X3X0: http://files.ettus.com/manual/page_gpsdo_x3x0.html
* E3X0:
http://files.ettus.com/manual/page_usrp_e3x0.html#e3x0_hw_gps
On Thu, Sep 10, 2020 at 9:38 AM Marcus D. Leech via USRP-users
<[email protected] <mailto:[email protected]>>
wrote:
On 09/10/2020 10:12 AM, Xiang Ma via USRP-users wrote:
Hi,
I am using the
/usr/local/lib/uhd/utils/query_gpsdo_sensors to get gps
information, but it shows: /Waiting for the GPSDO to warm
up...........
No response from GPSDO in 30 seconds/
/
/
This is the whole information:
/hu@hu:~$ /usr/local/lib/uhd/utils/query_gpsdo_sensors
Creating the USRP device with: ...
[INFO] [UHD] linux; GNU C++ version 7.5.0; Boost_106501;
UHD_3.15.0.HEAD-0-gaea0e2de
[INFO] [X300] X300 initialization sequence...
[INFO] [X300] Maximum frame size: 1472 bytes.
[INFO] [X300] Radio 1x clock: 200 MHz
[INFO] [GPS] Found an internal GPSDO: LC_XO, Firmware Rev 0.929b
[INFO] [0/DmaFIFO_0] Initializing block control (NOC ID:
0xF1F0D00000000000)
[INFO] [0/DmaFIFO_0] BIST passed (Throughput: 1304 MB/s)
[INFO] [0/DmaFIFO_0] BIST passed (Throughput: 1306 MB/s)
[INFO] [0/Radio_0] Initializing block control (NOC ID:
0x12AD100000000001)
[INFO] [0/Radio_1] Initializing block control (NOC ID:
0x12AD100000000001)
[INFO] [0/DDC_0] Initializing block control (NOC ID:
0xDDC0000000000000)
[INFO] [0/DDC_1] Initializing block control (NOC ID:
0xDDC0000000000000)
[INFO] [0/DUC_0] Initializing block control (NOC ID:
0xD0C0000000000000)
[INFO] [0/DUC_1] Initializing block control (NOC ID:
0xD0C0000000000000)
Using Device: Single USRP:
Device: X-Series Device
Mboard 0: X310
RX Channel: 0
RX DSP: 0
RX Dboard: A
RX Subdev: UBX RX
RX Channel: 1
RX DSP: 0
RX Dboard: B
RX Subdev: UBX RX
TX Channel: 0
TX DSP: 0
TX Dboard: A
TX Subdev: UBX TX
TX Channel: 1
TX DSP: 0
TX Dboard: B
TX Subdev: UBX TX
Setting the reference clock source to "gpsdo"...
Clock source is now gpsdo
Setting the reference clock source to "gpsdo"...
Time source is now gpsdo
Waiting for ref_locked...USRP Locked to Reference.
**************************************Helpful Notes on
Clock/PPS Selection**************************************
As you can see, the default 10 MHz Reference and 1 PPS
signals are now from the GPSDO.
If you would like to use the internal reference(TCXO) in
other applications, you must configure that explicitly.
****************************************************************************************************************
Waiting for the GPSDO to warm up...........
No response from GPSDO in 30 seconds/
/
/
I do plug the GPSDO to the board, and I plug the 5V active
GPS antenna in the `GPS ANT` connector at the rear panel.
But I am not sure why. I just want to get the location
information. (btw, is it because I am in the indoor area?)
Thanks,
Xiang Ma
--
/*Xiang Ma, */Ph.D. Student
College of Engineering
Utah State University
E-mail:[email protected] <mailto:[email protected]>
I would re-check the GPSDO installation. You may have bent
one of the pins when you installed it.
Also, it won't be able to get a "fix" unless the antenna can
"see" the sky. Most buildings are not that transparent at
1575MHz.
_______________________________________________
USRP-users mailing list
[email protected] <mailto:[email protected]>
http://lists.ettus.com/mailman/listinfo/usrp-users_lists.ettus.com
--
/*Xiang Ma, */Ph.D. Student
College of Engineering
Utah State University
E-mail:[email protected] <mailto:[email protected]>
--
/*Xiang Ma, */Ph.D. Student
College of Engineering
Utah State University
E-mail:[email protected] <mailto:[email protected]>
_______________________________________________
USRP-users mailing list
[email protected]
http://lists.ettus.com/mailman/listinfo/usrp-users_lists.ettus.com
