Re: Error With GPSDO USRP x300
On 22/02/2023 18:14, Jones, James (jtjones49) wrote: Hello, I have a USRP x300 and I am trying to use the GPS module for clock sync. I am running Ubuntu 20 and am using external GPS antennas and am using GNUradio version 3.10.5.1 . I have the following arguments for the USRP source block: Sync: Unknown PPS Time Source: Default Clock Source: O/B GPSDO However, when running this block I get the following error: Traceback (most recent call last): File "/home/.../Documents/test.py", line 290, in main() File "/home/.../Documents/test.py", line 268, in main tb = top_block_cls() File "/home/.../Documents/test.py", line 92, in __init__ self.uhd_usrp_source_0_0.set_clock_source('gpsdo', 0) RuntimeError: RuntimeError: Reference Clock PLL failed to lock to gpsdo source. Any help is appreciated and thank you to Marcus Müller for helping me resolve the incompatibility with the USRPs. James Jones Oh, also, if there's a source connected to the external REF IN connector, try disconnecting it. On at least *some* hardware versions the external clock input can interfere with the on-board GPSDO clock.
Re: Error With GPSDO USRP x300
On 22/02/2023 18:14, Jones, James (jtjones49) wrote: Hello, I have a USRP x300 and I am trying to use the GPS module for clock sync. I am running Ubuntu 20 and am using external GPS antennas and am using GNUradio version 3.10.5.1 . I have the following arguments for the USRP source block: Sync: Unknown PPS Time Source: Default Clock Source: O/B GPSDO However, when running this block I get the following error: Traceback (most recent call last): File "/home/.../Documents/test.py", line 290, in main() File "/home/.../Documents/test.py", line 268, in main tb = top_block_cls() File "/home/.../Documents/test.py", line 92, in __init__ self.uhd_usrp_source_0_0.set_clock_source('gpsdo', 0) RuntimeError: RuntimeError: Reference Clock PLL failed to lock to gpsdo source. Any help is appreciated and thank you to Marcus Müller for helping me resolve the incompatibility with the USRPs. James Jones Did you source the GPSDO from Ettus/NI, or from somewhere else? Can you confirm that it's connected correctly? If you look at the on-board LEDs here: https://kb.ettus.com/X300/X310#On-Board_LEDs What does the GPS LOCK light say after a few (10s of) minutes being connected to the antenna?
Error With GPSDO USRP x300
Hello, I have a USRP x300 and I am trying to use the GPS module for clock sync. I am running Ubuntu 20 and am using external GPS antennas and am using GNUradio version 3.10.5.1 . I have the following arguments for the USRP source block: Sync: Unknown PPS Time Source: Default Clock Source: O/B GPSDO However, when running this block I get the following error: Traceback (most recent call last): File "/home/.../Documents/test.py", line 290, in main() File "/home/.../Documents/test.py", line 268, in main tb = top_block_cls() File "/home/.../Documents/test.py", line 92, in __init__ self.uhd_usrp_source_0_0.set_clock_source('gpsdo', 0) RuntimeError: RuntimeError: Reference Clock PLL failed to lock to gpsdo source. Any help is appreciated and thank you to Marcus Müller for helping me resolve the incompatibility with the USRPs. James Jones