Dear all, We have 12 USRP2 boards which we would like to synchronise and run in a phase array system as an expansion of the 4 element system we currently have running using the VRT branch of GNURadio.
Currently we use a 4 port PCIe Gb Ethernet Card to connect the USRP2 boards to the host computer. Our Communications group suggested that we could use an Ethernet switch to support 12 boards instead of trying to find a computer we can stuff that many Ethernet cards in to. Data from all 4 boards should get streamed into a data buffer on the switch and then be accessed sequentially by the host computer at a rate to avoid the over-run of the buffers. Switches work on the ethernet layer and hence the protocol should be compatible. We have read about some problems on the forums regarding using a switch for the USRP2's. Does anybody know if it is a realistic task to be able to use a switch to stream data in from multiple boards in this manner and how one might start in creating a system which can do this? Does a new protocol for sending packets to the computer need to be created. If so then where is the current protocol specified? Best regards, Marc. -- View this message in context: http://old.nabble.com/USRP2-with-a-Switch-tp28003772p28003772.html Sent from the GnuRadio mailing list archive at Nabble.com. _______________________________________________ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org http://lists.gnu.org/mailman/listinfo/discuss-gnuradio
