Great. Thanks so much for the help, Marcus and Derek. Cheers,
Nick On Mon, Jan 8, 2018 at 2:08 PM Marcus Müller <[email protected]> wrote: > Hi Nick, > > Derek's absolutely right, the FPGA interface was pretty stable for a > long time! By the way, what are you planning to do with your USRP? What > daughterboard do you have in there? > > There's one minimal caveat regarding using the latest possible UHD: > somewhere after 3.8.0, the ability to use the second Nyquist zone with > a BasicTX on a N200/N210 broke. If that's not what you're using: > Definitely go with 3.8.2! > > Best regards, > Marcus > > On Mon, 2018-01-08 at 22:02 +0000, Derek Kozel wrote: > > Hi Nick, > > > > Marcus is correct, except for including the maximum UHD version you > > can use. The N200's FPGA compatibility number was increased in this > > commit on April 9, 2015. You need any version of UHD before that > > date. UHD 3.8.2 is the last release that did not include it. > > https://github.com/EttusResearch/uhd/commit/f23e7bcc47f86ffb431aee43a > > be670e3e5e31647 > > > > UHD 3.8.3 > > https://github.com/EttusResearch/uhd/releases/tag/release_003_008_002 > > > > I would definitely recommend using the latest (so still almost three > > years old) version of UHD that you can. Alternatively it is worth > > asking if it would be OK to upgrade the FPGA for your use and then > > downgrade when returning it. > > > > Regards, > > Derek > > > > On Mon, Jan 8, 2018 at 9:55 PM, Marcus Müller <[email protected] > > om> wrote: > > > There's no workaround, but a single solution: > > > > > > You need to use the same UHD version as they do. > > > > > > So, uninstall GNU Radio and UHD, build UHD 3.6.2 (ooooold) from > > > source, > > > build GNU Radio from source (which will then use that oooold > > > version of > > > UHD). Then, things should work. > > > > > > Other than that: consider talking to them about the non-update > > > policy. > > > You can download the official 3.6.2 FPGA / firmware image package > > > from > > > https://files.ettus.com/ , and then restore that later. > > > > > > If they have a modified, self-built image on the USRP (which would > > > explain their hesitance to allow you to change the image), then > > > it's > > > probably no use trying to use it with stock host software – they've > > > probably changed the behaviour of the USRP so that it won't work > > > fully > > > with unmodified UHD. Generally, think of the FPGA image as the > > > device > > > that UHD is the driver to – so, your driver needs to be designed > > > *exactly* for your device. > > > > > > Best regards, > > > Marcus > > > > > > > > > On Mon, 2018-01-08 at 21:03 +0000, Nicholas Bruce wrote: > > > > Hi, > > > > > > > > I've borrowed some N2xx series Ettus devices and have been > > > explicitly > > > > asked to not update the firmware/FPGA images on the devices. When > > > I > > > > try to use the devices from GR 3.7.11.1 I get the FPGA > > > > incompatibility error and the commands to update the devices. > > > > > > > > Please update the firmware and FPGA images for your device. > > > > See the application notes for USRP2/N-Series for instructions. > > > > Expected FPGA compatibility number 11, but got 10: > > > > The FPGA build is not compatible with the host code build. > > > > As an Administrator, please run: > > > > > > > > "C:\Program Files\UHD\lib\uhd\utils\uhd_images_downloader.py" > > > > "C:\Program Files\UHD\bin\uhd_image_loader" ^ > > > > --args="type=usrp2,addr=192.168.10.2 > > > > > > > > Is there a workaround or way to use these devices? They were > > > working > > > > on the owners Fedora box with UHD v3.6.2-5 and GR v3.7.11-2. > > > > > > > > Cheers, > > > > > > > > Nick > > > > > > > > > > > > _______________________________________________ > > > > Discuss-gnuradio mailing list > > > > [email protected] > > > > https://lists.gnu.org/mailman/listinfo/discuss-gnuradio > > > > > > _______________________________________________ > > > Discuss-gnuradio mailing list > > > [email protected] > > > https://lists.gnu.org/mailman/listinfo/discuss-gnuradio > > > > > -- Nicholas Bruce, B.Eng MASc Student Department of Mechanical Engineering University of Victoria ELW 402 | Phone: 971.333.1791
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