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Re: [Discuss-gnuradio] Synchronizing multiple USRPs
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From: |
Josh Blum |
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Subject: |
Re: [Discuss-gnuradio] Synchronizing multiple USRPs |
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Date: |
Sun, 27 Feb 2011 23:59:45 -0800 |
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User-agent: |
Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.9.2.13) Gecko/20101208 Lightning/1.0b2 Thunderbird/3.1.7 |
On 02/27/2011 11:48 PM, Khalid Jamil wrote:
> Hello,
>
> I have eight (08) USRP N210s that has been synchronized using 10MHZ and 1PPS
> reference. I am receiving data from them using a gigabit ethernet switch to
> my computer.
>
> My question is when I will receive packets from all of them through a single
> switch, how will I know the time reference for each sample?
>
A time stamp can be found in the metadata, representing the time of the
first sample in the packet. See the docs for the recv() call:
http://www.ettus.com/uhd_docs/doxygen/html/classuhd_1_1device.html#a3e7e55ed84ca59310c4396a18a5e36d5
-josh
> Thanks,
>
> Khalid.
>
>
>
>
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