On Fri, Nov 07, 2008 at 01:53:11PM -0500, Achilleas Anastasopoulos wrote: > Hi, > > I am looking at the usrp_server code in the trunk and have the following > question. > > Is there any difference between a tx/rx "port" and a "channel"? > I see that the usrp_server is always initialized with N_PORTS=4 tx and > N_PORTS=4 rx ports (total of 8 + one control port), but later on, we > only work with d_nrx_chan = d_ntx_chan = 2 tx and rx channels. > > My understanding was that ports/channels are in one-to-one > correspondence. So I thought that N_PORTS is the "maximum" number of > ports/channels that the server can handle. > In that case, I would expect that > the parameters d_nrx_chan, d_ntx_chan are given to the constructor and > used accordingly... > The picture is more obscure considering that there is also a > D_MAX_CHANNELS = 16 in the usrp_server.h file... > > What am I missing? > > Thanks > Achilleas
The actual number of channels available depends on the fpga image loaded. I'm not sure how Geoerge is handling that, or whether he provides a method to query it. Eric _______________________________________________ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org http://lists.gnu.org/mailman/listinfo/discuss-gnuradio
