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From: | Josh Blum |
Subject: | Re: [Discuss-gnuradio] USRP2 VRT support |
Date: | Mon, 28 Dec 2009 17:21:36 -0500 |
User-agent: | Thunderbird 2.0.0.23 (X11/20090817) |
Tim Pearce wrote:
Josh, The USRP2 doesn't respond when loaded with the firmware at: http://www.ettus.com/usrp2_vrt I've just run find_usrps -e eth1 with wireshark running and can only see the outgoing packet: 1 0.000000 Toshiba_b4:52:54 Broadcast 0xbeef Ethernet II Given the transport type is the old (I think) 0xbeef I guess this is wrong, I'm just about to recheckout the source code and compile again, but "vrt" is a directory present in where I compiled gnuradio from - I've just double checked by:
The vrt directory was there prior to this work. A good way to verify that you pulled in the right branch would be to check usrp2/firmware/include/usrp2_eth_packet.h and see that it has the following defines:
#define U2_DATA_ETHERTYPE 0xBEEF // used in our data frames #define U2_CTRL_ETHERTYPE 0xBEF0 // used in our control framesThats where the firmware and host code gets the ethernet transport type from.
-Josh
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