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Re: [Discuss-gnuradio] USRP2 PPS and REF
From: |
Douglas Geiger |
Subject: |
Re: [Discuss-gnuradio] USRP2 PPS and REF |
Date: |
Fri, 13 Feb 2009 16:47:59 -0600 |
User-agent: |
Thunderbird 2.0.0.19 (Windows/20081209) |
Suprin, Charles E. wrote:
> Matt,
>
> I had not seen your other post before I responded to the first one.
>
> How do you do a "receive at"? Looking at
> usrp2/host/apps/include/usrp2/usrp2.h, the only function I see is
> start_rx_streaming which does not have a timestamp in it.
>
> As for the sync_every_pps, if one is running two setup, physically separate,
> then the timestamps of the same time will agree if they both reset on
> separate GPS generated PPS's. That way if one reboots or restarts the
> application, the time ambiguity is in units of seconds which can generally
> resolved with a NTP on the host computer.
>
> If I am missing something that could solve this more easily, let me know.
>
> Charles
>
Johnathan mentioned the "receive at" call to me as well - and I see
there is a ticket #341 for USRP2 send-at and receive-at. So this is
something that is still in-development? Looks like it will be coming
with the new message passing architecture.
Doug
--
Doug Geiger
Research Assistant
Communications and Signal Processing Lab
Oklahoma State University
http://cspl.okstate.edu
address@hidden
address@hidden
- Re: [Discuss-gnuradio] USRP2 PPS and REF, (continued)
- Re: [Discuss-gnuradio] USRP2 PPS and REF, Douglas Geiger, 2009/02/10
- Re: [Discuss-gnuradio] USRP2 PPS and REF, Douglas Geiger, 2009/02/10
- Re: [Discuss-gnuradio] USRP2 PPS and REF, Johnathan Corgan, 2009/02/10
- Re: [Discuss-gnuradio] USRP2 PPS and REF, Douglas Geiger, 2009/02/12
- Re: [Discuss-gnuradio] USRP2 PPS and REF, Douglas Geiger, 2009/02/13
- RE: [Discuss-gnuradio] USRP2 PPS and REF, Newman, Timothy, 2009/02/13
- Re: [Discuss-gnuradio] USRP2 PPS and REF, Matt Ettus, 2009/02/13
- RE: [Discuss-gnuradio] USRP2 PPS and REF, Suprin, Charles E., 2009/02/13
- Re: [Discuss-gnuradio] USRP2 PPS and REF, Matt Ettus, 2009/02/13
- RE: [Discuss-gnuradio] USRP2 PPS and REF, Suprin, Charles E., 2009/02/13
- Re: [Discuss-gnuradio] USRP2 PPS and REF,
Douglas Geiger <=