I used MATLAB to create waveforms and then send them to GNURadio using TCP ports and out through the USRP (and vise versa). Not sure if this is what you want, but this is how I did it...
On the python side, I used the following code to open the TCP socket... http://alumni.media.mit.edu/~jcooley/gr_experiments/experiments/gr_socket.ht m On the MATLAB side, I used this code... http://www.mathworks.com/matlabcentral/fileexchange/loadFile.do?objectId=345 The MATLAB code would look something like... Data = <create a waveform> con=pnet('tcpconnect','127.0.0.1',8881) pnet(con,'write', data, 'NATIVE'); pnet(con,'close'); The python code would look something like... ## imports... from gr_socket import * # the main flow would be as follows. u = usrp.sink_c () (src, fd, conn) = make_socket_source(8881, 4) fmtx = blks.nbfm_tx (fg, audio_rate, usrp_rate, max_dev=2.5e3, tau=75e-6) gain = gr.multiply_const_cc (40.0) fg.connect (src, fmtx, gain, u) You can receive data in GNURadio and send it directly to MATLAB just as easy. Hope this helps... Kevin _______________________________________________ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org http://lists.gnu.org/mailman/listinfo/discuss-gnuradio
