Hi, Is there any files for using two usrp2 as a receivers not as transmitters? thanks
sri ram-2 wrote: > > Hi all, > I am trying to create a two transmitter setup with two USRP2s > connected > with the MIMO cable. I use the trunk version of GNURadio (Friday, Jan > 29,2010) on laptops running Ubuntu 9.04. > > From previous emails and looking at the code, the relevant code for two > transmitter setup seems to be the test_mimo_tx file in usrp2/host/apps. I > update the firmware of the master USRP2 with mimo_tx.bin as pointed out in > http://gnuradio.org/redmine/wiki/gnuradio/USRP2UserFAQ. > > sudo ./u2_flash_tool --dev=/dev/sdb -t s/w apps/mimo_tx.bin -w > > and for the slave USRP2, I use > > sudo ./u2_flash_tool --dev=/dev/sdb -t s/w apps/mimo_tx_slave.bin -w > > When I invoke the transmission program at the sender laptop using > > sudo ./test_mimo_tx -f 2.412G -I a.dat -i 100 -r > > I observe the following message: > > usrp2::ctor reset_db failed. > > The USRP2 freezes after this and the host cannot find it using find_usrps. > The archives of the mailing list suggest updating the firmware to solve > this > issue. But I want to use the MIMO firmware and not the usual txrx.bin. > > 1. Is there firmware for the MIMO master and slave, which does not have > this > problem? > > 2. What modifications need to be incorporated to the current MIMO files to > fix this problem? > If there is not a solution already, I am thinking of modifying the > existing > MIMO USRP2 related files. Any pointers on what are to be taken care of, > will > be very useful. > > > Thanks, > Sri > > _______________________________________________ > Discuss-gnuradio mailing list > [email protected] > http://lists.gnu.org/mailman/listinfo/discuss-gnuradio > > -- View this message in context: http://old.nabble.com/USRP2-MIMO-setup-problem-tp27397628p28509343.html Sent from the GnuRadio mailing list archive at Nabble.com. _______________________________________________ Discuss-gnuradio mailing list [email protected] http://lists.gnu.org/mailman/listinfo/discuss-gnuradio
