Thanks for the help. How close is GNU radio to implementing VITA49/UDP? Is the release weeks away, months away, or more? What version number do you think that will be?
Thanks again, Devin On Thu, Mar 26, 2009 at 10:47 AM, Johnathan Corgan < jcor...@corganenterprises.com> wrote: > 2009/3/26 devin kelly <dwwke...@gmail.com>: > > > I am trying to figure out how information is sent between a PC and the > > USRP. So far I can tell they are all customized packets, i.e. raw > sockets > > are used, which is why you need to be root. > > The USRP2 currently uses Ethernet frames of type 0xBEEF to communicate > sample data and control frames with the host PC. > > > But I've been having trouble > > figuring out what the header information is. > > The wire format is described here: > > > http://gnuradio.org/trac/browser/gnuradio/trunk/usrp2/firmware/include/usrp2_eth_packet.h > > > > If there is > > a GNU Radio plugin for Wireshark (formerly Ethereal) that would be a > great > > tool. > > That would be a welcome addition to the project. > > > Also, does the USRP (or USRP2) support UDP at all? > > It currently does not. However, after release 3.2, we are rewriting > the USRP2 transport format to use the VITA49 digital IF standard, > encapsulated in UDP. > > Johnathan > -- http://users.wpi.edu/~dkelly/
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