Thanks Neel for the clarification! Regards Snehasish ________________________________ From: Neel Pandeya <[email protected]> Sent: Thursday, July 16, 2020 3:51 PM To: Snehasish Kar <[email protected]> Cc: [email protected] <[email protected]> Subject: Re: [USRP-users] support for synchronizing two USRPs
You cannot synchronize USRP devices by using a daisy-chain configuration. The 10 MHz reference and the 1 PPS on both USRP devices must be connected to a common 10 MHz reference and to a common 1 PPS signal. The OctoClock-G device can be used to generate these signals and to distribute them to 8 devices. Then, for each USRP device, in UHD or GNU Radio, set your clocking source and timing source to "external". https://kb.ettus.com/OctoClock_CDA-2990 https://kb.ettus.com/Synchronization_and_MIMO_Capability_with_USRP_Devices --Neel Pandeya On Thu, 16 Jul 2020 at 05:00, Snehasish Kar via USRP-users <[email protected]<mailto:[email protected]>> wrote: Hello I am trying to time synchronize two USRPs. I have connected reference and PPS trigger out of USRP A to reference and PPS trigger in of USRP B. In USRP A i have set time and clock source to GPSDO and in USRP B I have set time and clock source to external. But I when I try to compare uhd::time_spec for both the boards I see there is a time mismatch. Please help me understanding where I am going wrong. Regards Snehasish _______________________________________________ USRP-users mailing list [email protected]<mailto:[email protected]> http://lists.ettus.com/mailman/listinfo/usrp-users_lists.ettus.com
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