Thanks I will look into this. Right now, I have a modified FPGA HG image for the x310 along with modified UHD and GNURadio source to handle some additional inputs to the USRP. I'd like to try the new UHD, but I will have to incorporate those changes into the source. I believe this will necessitate moving to a newer FPGA image as well but I'm not sure. Anyway I may have some upgrading to do across the board if I want to use a newer UHD.
Thanks, Mark On Wed, Apr 10, 2019 at 5:13 PM Nate Temple <nate.tem...@ettus.com> wrote: > Hi Mark, > > We just merged DPDK support for the X3xx. You can try it out if you build > the current head of master. DPDK may help with 8 channels running at 100 > MS/s each. > > https://github.com/EttusResearch/uhd/commits/master > > https://files.ettus.com/manual/page_dpdk.html > > Regards, > Nate Temple > > > On Wed, Apr 10, 2019 at 3:33 PM Mark Gannet via USRP-users < > usrp-users@lists.ettus.com> wrote: > >> Okay thank you Marcus. >> >> Mark >> >> On Wed, Apr 10, 2019 at 3:09 PM Marcus D. Leech <patchvonbr...@gmail.com> >> wrote: >> >>> On 04/10/2019 05:31 PM, Mark Gannet wrote: >>> >>> I've addressed the USRP as the following: >>> USRP[0-3]: 192.168.4x.2, where x=0,1,2,3 >>> >>> UHD 3.9.2 >>> >>> You should probably upgrade to a newer UHD version. There were bugs in >>> that area, as I recall, that have since been fixed. >>> >>> >>> On Wed, Apr 10, 2019 at 1:47 PM Marcus D. Leech via USRP-users < >>> usrp-users@lists.ettus.com> wrote: >>> >>>> On 04/10/2019 04:41 PM, Mark Gannet via USRP-users wrote: >>>> > I have 4 USRP x310s running at 12.5 MSa/sec on a quad 10GbE network >>>> > adapter (each USRP has it's own 10 GbE connection). I'm using the 16 >>>> > bit short format. >>>> > >>>> > I can operate one USRP at a time 100 MSa/sec with no overflows or >>>> > drops (200 MSa/sec total for one USRP). If I want to run all 4 USRP, >>>> > I can only achieve 25 MSa/sec for all 8 channels (total of 200 >>>> MSa/sec). >>>> > >>>> > Basically the sum of sample rates cannot exceed 200 MSa/sec which is >>>> > about 6400 Mbps (200*4 bytes/sa * 8 b/B). >>>> > >>>> > Why is this? I thought with a dedicated 10GbE network port for each >>>> > USRP, the sample rate limit would be 100 MSa/sec for each (6400 Mbps). >>>> > >>>> > Thanks, >>>> > Mark >>>> > >>>> What version of UHD are you using? >>>> >>>> How are you addressing the USRPs? >>>> >>>> >>>> >>>> _______________________________________________ >>>> USRP-users mailing list >>>> USRP-users@lists.ettus.com >>>> http://lists.ettus.com/mailman/listinfo/usrp-users_lists.ettus.com >>>> >>> >>> _______________________________________________ >> USRP-users mailing list >> USRP-users@lists.ettus.com >> http://lists.ettus.com/mailman/listinfo/usrp-users_lists.ettus.com >> >
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