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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 13:02:02 -0600 |
User-agent: |
Thunderbird 2.0.0.19 (Windows/20081209) |
Ok - so I have packets coming in from both USRP2's now, getting dumped
to their separate files.
My app prints out the timestamp of each frame that gets sent to the
copy handler: if my 1PPS source is working properly, should the
timestamps coming out of the two USRP2's be identical?
Another question: no matter what, there is going to be some time delay
between when I tell one USRP2 to start, and when I tell the other one to
start: with the timestamps I could do something like
align_on_samplenumbers (but with the timestamps - at least I could do
this in the copy handler where I have access to this information). Of
course this requires that the timestamps do end up being based on the
1PPS. Should I take that as a sign my USRP2's are not currently getting
sync'd to the 1PPS?
Thanks,
Doug
--
Doug Geiger
Research Assistant
Communications and Signal Processing Lab
Oklahoma State University
http://cspl.okstate.edu
address@hidden
address@hidden
- [Discuss-gnuradio] USRP2 PPS and REF, Suprin, Charles E., 2009/02/09
- Re: [Discuss-gnuradio] USRP2 PPS and REF, Eric Blossom, 2009/02/09
- Re: [Discuss-gnuradio] USRP2 PPS and REF, Douglas Geiger, 2009/02/10
- RE: [Discuss-gnuradio] USRP2 PPS and REF, Suprin, Charles E., 2009/02/10
- Re: [Discuss-gnuradio] USRP2 PPS and REF, Eric Blossom, 2009/02/10
- 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 <=
- 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, 2009/02/13