Hi Vladica & the USRP community - For those of you who have White Rabbit equipment, you can download brand new hot off the buildbots WR FPGA images (WX and XQ) for your N3x0 or N32x here < https://drive.google.com/drive/folders/1y-AJA2ZBaHgwyRCiOfatfAyLSX0t1G7l?usp=sharing> . Note that these are for UHD 4.1.0.X -- UHD public GIT master; GIT branch UHD-4.1, or 4.1.0.0 or 4.1.0.1 releases. I've tested these FPGA images on N310 revision 5 and 7, and N320 (current revision); just up through "benchmark_rate" when specifying "time_source=sfp0" and multiple channels, both on the USRP and remote to a host ... all works fine! Thus, I wanted to get the FPGA images out to customers for testing / evaluation ... If you do so, I'd love to hear of your successes / issues! - MLD
On Tue, Jul 13, 2021 at 2:01 PM Vladica Sark <vladicas...@gmail.com> wrote: > Hi Rob, > > Thanks for this useful information. > According to Michael it should be fixed mid/late July 2021, so pretty > soon. Meanwhile I can only switch back to X310 probably, and see if it > works there. > > Let's hope it would be fixed soon. > > > BR, > Vladica > > > On 12.07.21 17:47, Rob Kossler wrote: > > Hi Vladica, > > From the 'changelog', it appears that N321 support began with release > > 3.14. But, at that point I believe that WR was already broken. So, I > > think that there is no solution to your problem other than to wait for > > Ettus to fix the WR issues. However, WR has been broken for a while > > (note user-list posts from last fall Sept & Dec) so I don't know when > > this will be working again. > > Rob > > > > > > On Wed, Jul 7, 2021 at 10:26 AM Vladica Sark <vladicas...@gmail.com > > <mailto:vladicas...@gmail.com>> wrote: > > > > Hi Michael, > > > > I obtained the necessary SFP+ optical adapters and now I am trying to > > put uhd 3.13.1.0 on the N321s in order to use the WR synchronization. > > Unfortunately, when I update the sd card image with 3.13.1.0 the N321 > > boots but the SFP0 and SFP1 do not go up. When I try to run > > uhd_find_devices, on a terminal using the USB port it says no UHD > > devices are found. > > > > I believe that the right FPGA image should be put on the FPGA, but > > the > > ways described in Knowledgebase are not working. > > > > Is there a way to put the version 3.13.1.0 on the N321? I have tried > > version 4.0.0.0 and it is working fine, but WR is broken. > > > > BR, > > Vladica > > > > > > On 22.06.21 21:31, Michael Dickens wrote: > > > I'm using primarily FS adapters, cables (single and multi mode), > > and > > > fiber connectors (to allow multiplexing lanes). The adapters I > > bought > > > were "generic" and had to be tweaked using an FS BOX to be fully > > > compatible with Intel or Mellanox NICs. This tweaking seems to have > > > helped a lot with the 100 Gb interface (E810); the 10 Gb > > interfaces do > > > not show much benefit to be manufacturer specific -- though I'm > > sure > > > it doesn't hurt! I have not tried a multi-mode to single mode > > splitter > > > / joiner, but I'd suppose they do exist & if anybody here has had > > > experience that would be useful to hear about! I hope this is > > useful! > > > - MLD > > > > > > > > > On Tue, Jun 22, 2021 at 10:05 AM Vladica Sark > > <vladicas...@gmail.com <mailto:vladicas...@gmail.com> > > > <mailto:vladicas...@gmail.com <mailto:vladicas...@gmail.com>>> > > wrote: > > > > > > Hi Michael, > > > > > > Thanks for the answer. For now for the data I am using DAC > > cables, > > > but > > > we would need larger distances, i.e. 50+ meters, and for > > this I would > > > need fibers for both WR and data. > > > > > > Is there also some optical multiplexer for these wavelengths, > in > > > order > > > to use a simplex fiber, for both WR and data? > > > > > > BR, > > > Vladica > > > > > > On 22.06.21 15:41, Michael Dickens wrote: > > > > Hi Vladica - I've tested a variety of fiber adapters and > > cables > > > with > > > > no issues (e.g., ZyXEL, FS, Axcen). The primary keys are > > to make > > > sure > > > > the various related parameters match up between the > > adapters and > > > > cables and devices. For example: If the adapter is 1490/1310, > > > then you > > > > want to make sure the cable is for the same wavelengths. Same > > > for the > > > > fiber polish and other parameters (single / dual fiber ; . > > Some are > > > > easier than others, none of this is too difficult luckily! > > > > > > > > For short distances, a DAC cable will work for all of the > > N320/N321 > > > > SFP interfaces. > > > > > > > > At the moment, WR support is being fixed for UHD 3.14.0.0 to > > > current. > > > > If you -require- WR support -right now- you can use UHD > > 3.13.1.0 > > > while > > > > we're working out how to fix WR for newer UHD. We expect > > the fix > > > to be > > > > available to customers sometime in mid/late-July (2021); once > > > the fix > > > > is determined and verified we will commit it to the various > > > branches > > > > of the UHD repository, and it will be available in UHD > > -after- the > > > > forthcoming 4.1 release. It will be available in the > > public UHD > > > > repository for folks to use to patch UHD between releases. > > > > > > > > I hope this is useful! - MLD > > > > > > > > > > > > On Tue, Jun 22, 2021 at 6:19 AM Vladica Sark > > > <vladicas...@gmail.com <mailto:vladicas...@gmail.com> > > <mailto:vladicas...@gmail.com <mailto:vladicas...@gmail.com>> > > > > <mailto:vladicas...@gmail.com > > <mailto:vladicas...@gmail.com> <mailto:vladicas...@gmail.com > > <mailto:vladicas...@gmail.com>>>> > > > wrote: > > > > > > > > Dear all, > > > > > > > > I would like to use N321 with WRS 3/18 which uses optical > > > cables. I > > > > would like to use also for the 10 Gbit SFP1 optical SFP+ > > > transceiver. > > > > Do you have some recommended optical SFP+ adapters, > > duplex and, > > > > preferably, simplex? > > > > The idea is to use a duplex monomode fiber, one fiber for > > > the 10 Gbit > > > > data and one fiber for WRS synchronization. > > > > They would be connected to 10 Gbit switch or QNAP > > > Thunderbolt to SFP+ > > > > adapter, so they do not have to be Intel. > > > > > > > > > > > > Best regards, > > > > > > > > Vladica > > > > > > > > _______________________________________________ > > > > USRP-users mailing list -- usrp-users@lists.ettus.com > > <mailto:usrp-users@lists.ettus.com> > > > <mailto:usrp-users@lists.ettus.com > > <mailto:usrp-users@lists.ettus.com>> > > > > <mailto:usrp-users@lists.ettus.com > > <mailto:usrp-users@lists.ettus.com> > > > <mailto:usrp-users@lists.ettus.com > > <mailto:usrp-users@lists.ettus.com>>> > > > > To unsubscribe send an email to > > > usrp-users-le...@lists.ettus.com > > <mailto:usrp-users-le...@lists.ettus.com> > > > <mailto:usrp-users-le...@lists.ettus.com > > <mailto:usrp-users-le...@lists.ettus.com>> > > > > <mailto:usrp-users-le...@lists.ettus.com > > <mailto:usrp-users-le...@lists.ettus.com> > > > <mailto:usrp-users-le...@lists.ettus.com > > <mailto:usrp-users-le...@lists.ettus.com>>> > > > > > > > > > _______________________________________________ > > USRP-users mailing list -- usrp-users@lists.ettus.com > > <mailto:usrp-users@lists.ettus.com> > > To unsubscribe send an email to usrp-users-le...@lists.ettus.com > > <mailto:usrp-users-le...@lists.ettus.com> > > >
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