Re: [Discuss-gnuradio] Viewing timestamps using USRP2

[Doug Geiger]

MarcW wrote:
> I am trying to use wireshark to extract the timestamp from the received
> ethernet packets to test my sync_every_pps() function is working. I have
> located the word I need to extract from the received data but how can I
> automatically extract this and display it as an integer in the display
> window in wireshark?
>
> Alternatively, is there a better way to view the timestamp information to
> check for a reset?
>   
You can either write a custom wireshark plugin to parse the packets (in 
which case you'll want to consult with a better source of information on 
wireshark - perhaps their mailing list), simply monitor the word 
yourself, or you could write a c++ application that talks to libusrp2 
directly and prints out the timestamp. I did at one point modify the 
rx_streaming_samples application that is packaged with gnuradio to do 
just that. But I've also used wireshark and simply watched for the reset 
manually.
Doug

--
Douglas Geiger
Code 5545
U.S. Naval Research Laboratory
Washington, DC 20375
(202) 767-9048
address@hidden