I understand his question that he just wants to let the whole thing pump out samples, and he takes only a portion of it. I have no idea if this works in a controlled manner, but at least for spectrum display this works just fine, the lost samples are not a big issue.
Ralph. > -----Original Message----- > From: discuss-gnuradio-bounces+ralph=schmid....@gnu.org > [mailto:discuss-gnuradio-bounces+ralph=schmid....@gnu.org] On Behalf Of > Martin Braun > Sent: Thursday, January 29, 2015 2:08 PM > To: discuss-gnuradio@gnu.org > Subject: Re: [Discuss-gnuradio] USRP B200 host BW with USB 3.0/2.0 > > On 01/29/2015 01:48 PM, Jorge Gallo wrote: > > I understand the given values of host bandwidth for each protocol: > > > > USB 2.0 8 (MS/s @ 16-bit I/Q) > > If you go down to 8-bit I&Q, you will get twice that amount, if that's > any help. > > > USB 3.0 61.44 (MS/s @ 16-bit I/Q) > > > > > > > > However I would like to process 40MHz of analogue BW in GNURadio over > > USB 2.0 > > > > > > I fully understand a continuous reception is not possible to manage > > since it would require 40 IQ MS/s and I am limited to 8MS/s. > > > > > > > > However, is it possible to take snapshots of 40MHz over the time so that > > I am able to receive bits of 40MHz with USB 2.0 which are not continuous > > in time? > > > > Are there buffers in the FPGA that manage this kind of operation? > > None big enough for anything useful. > > It seems like attaching a USB3.0 connector would be simpler than running > 5 USRPs? Not that I would complain about the sales :) > > M > > _______________________________________________ > Discuss-gnuradio mailing list > Discuss-gnuradio@gnu.org > https://lists.gnu.org/mailman/listinfo/discuss-gnuradio _______________________________________________ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org https://lists.gnu.org/mailman/listinfo/discuss-gnuradio