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`Creating the USRP device with: ...
[INFO] [UHD] linux; GNU C++ version 11.4.0; Boost_107400; UHD_4.1.0.0-0-d88950d2
[INFO] [ANT] Detected Device: ANTSDR
[INFO] [ANT] Detecting internal GPSDO....
[INFO] [GPS] Found a generic NMEA GPS device
[INFO] [ANT] Initialize CODEC control...
[INFO] [ANT] Initialize Radio control...
[INFO] [ANT] Performing register loopback test...
[INFO] [ANT] Register loopback test passed
[INFO] [ANT] Performing register loopback test...
[INFO] [ANT] Register loopback test passed
[INFO] [ANT] Setting master clock rate selection to 'automatic'.
[INFO] [ANT] Asking for clock rate 16.000000 MHz...
[INFO] [ANT] Actually got clock rate 16.000000 MHz.
Using Device: Single USRP:
Device: B-Series Device
Mboard 0: B210
RX Channel: 0
RX DSP: 0
RX Dboard: A
RX Subdev: FE-RX1
RX Channel: 1
RX DSP: 1
RX Dboard: A
RX Subdev: FE-RX2
TX Channel: 0
TX DSP: 0
TX Dboard: A
TX Subdev: FE-TX1
TX Channel: 1
TX DSP: 1
TX Dboard: A
TX Subdev: FE-TX2
Synchronizing mboard 0: B210
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.
~/antsdr_uhd/host/build/examples$ ./sync_to_gps
`Creating the USRP device with: ...
[INFO] [UHD] linux; GNU C++ version 11.4.0; Boost_107400; UHD_4.1.0.0-0-d88950d2
[INFO] [ANT] Detected Device: ANTSDR
[INFO] [ANT] Detecting internal GPSDO....
[INFO] [GPS] Found a generic NMEA GPS device
[INFO] [ANT] Initialize CODEC control...
[INFO] [ANT] Initialize Radio control...
[INFO] [ANT] Performing register loopback test...
[INFO] [ANT] Register loopback test passed
[INFO] [ANT] Performing register loopback test...
[INFO] [ANT] Register loopback test passed
[INFO] [ANT] Setting master clock rate selection to 'automatic'.
[INFO] [ANT] Asking for clock rate 16.000000 MHz...
[INFO] [ANT] Actually got clock rate 16.000000 MHz.
Using Device: Single USRP:
Device: B-Series Device
Mboard 0: B210
RX Channel: 0
RX DSP: 0
RX Dboard: A
RX Subdev: FE-RX1
RX Channel: 1
RX DSP: 1
RX Dboard: A
RX Subdev: FE-RX2
TX Channel: 0
TX DSP: 0
TX Dboard: A
TX Subdev: FE-TX1
TX Channel: 1
TX DSP: 1
TX Dboard: A
TX Subdev: FE-TX2
Synchronizing mboard 0: B210
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
GPS Locked
USRP time: 1733743181.000000238
GPSDO time: 1733743181.000000000
ERROR: Failed to synchronize USRP time to GPS time
`
It should have been resolved in EttusResearch/uhd#283
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