Hi Songsong , The lab material which you have mentioned seems to be good one. Can you share some more if they are available. It will be a good reference to start with GnuRadio for beginners.
Thanks Songsong Gee wrote: > > I'm examining a GNU Radio Lab material: > Blad, Olofsson - 2011 - Software-Defined Radio Lab 1 Getting in Touch with > GNU Radio and the > USRP<http://dl.dropbox.com/u/11382666/Blad%2C%20Olofsson%20-%202011%20-%20Software-Defined%20Radio%20Lab%201%20Getting%20in%20Touch%20with%20GNU%20Radio%20and%20the%20USRP.pdf> > > This uses LFRX/LFTX daughterboards and the following codes for > transmitting > a signal (assume all variables are set correctly): > > from gnuradio import usrp > # ... blahblah > > subdev_spec = (0,0) > subdev = self.u.selected_subdev(subdev_spec) > self.u.set_mux(self.u.determine_tx_mux_value(subdev_spec)) > self.u.tune(0, subdev, carrier) > subdev.set_gain(0) > > Currently, however, I wanted to modify this codes for a RFX2400 > daughterboard, and when I use that codes without any changes, it doesn't > work > I cannot see anything but noise with usrp_fft.py. Thus, I changed the > codes > with the following: > > from grc_gnuradio import usrp as grc_usrp > # ... blahblah > self.usrp_simple_sink_x_0 = grc_usrp.simple_sink_c(which=0, side="A") > self.usrp_simple_sink_x_0.set_interp_rate(500) > self.usrp_simple_sink_x_0.set_frequency(2.412*(10**9), verbose=False) > self.usrp_simple_sink_x_0.set_gain(0) > self.usrp_simple_sink_x_0.set_enable(True) > self.usrp_simple_sink_x_0.set_auto_tr(True) > > > And then it finally works fine. > > Is there any difference between using usrp in gnuradio and usrp in > grc_gnuradio ? > And the former code is only working for LFRX/LFTX ? and the latter one is > working for other ones? > > -- > Seokseong Jeon, PhD Candidate > Communication & Networks Lab > IT Convergence Engineering (ITCE), POSTECH, Korea > +82 10 8338 1229, gee.songsong at gmail . com > > _______________________________________________ > Discuss-gnuradio mailing list > Discuss-gnuradio@gnu.org > https://lists.gnu.org/mailman/listinfo/discuss-gnuradio > > ----- Sumit Kr. Research Assistant Communication Research center IIIT Hyderabad India -- View this message in context: http://old.nabble.com/Difference-between-usrp-in-gnuradio-and-usrp-in-grc_gnuradio-tp33567618p33569420.html Sent from the GnuRadio mailing list archive at Nabble.com. _______________________________________________ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org https://lists.gnu.org/mailman/listinfo/discuss-gnuradio
