-19, 39, -19, -19,
-77, -19, -77, 39, -19, -19. Note that there are only 3 unique values and the
delta happens to be 58 deg, but I don't know what that implies...
Rob
On Mon, Jan 27, 2020 at 9:57 AM Robert via USRP-users
mailto:usrp-users@lists.ettus.com>> wrote:
With external LO its
-77, -19, -77, -19, -77, -19, -19, 39, -19, -19,
-77, -19, -77, 39, -19, -19. Note that there are only 3 unique values and the
delta happens to be 58 deg, but I don't know what that implies...
Rob
On Mon, Jan 27, 2020 at 9:57 AM Robert via USRP-users
mailto:usrp-users@lists.ettus.com>&g
With external LO its 300 MHz – 4 GHz, check footnote [3] from
https://www.ettus.com/all-products/usrp-n310/. LO has to be supplied at twice
the carrier freq.
Currently we use 4 channels. You can find an example how to do the calibration
here: https://github.com/EttusResearch/gr-doa
gr-doa was w
We use the N310 for DoA estimation, however:
- you are limited to 4 GHz
- after power-cycling you get a 180° ambiguity between the two radios
(I do not know if this could also happen when you just change the LO frequency)
If you want to have >4 channels, have a look at the new
usResearch/fpga/commit/1102779f49d44c9e8b88ce7251d203eb62ae26c9<http://github.com/EttusResearch/fpga/commit/1102779f49d44c9e8b88ce7251d203eb62ae26c9>
(but not yet ported onto 3.14)
I just cherry-picked 1102779f onto my uhd-fpga UHD-3.14 and it cleaned it up
for me.
I assume this will eventually make it to the UHD-3.14 bra
time is v3.14.1.1.
Note, 3.14.x.x UHD will require Vivado 2017.4.
Regards,
Nate Temple
On Mon, Dec 9, 2019 at 7:33 AM Robert via USRP-users
mailto:usrp-users@lists.ettus.com>> wrote:
Hi all!
I tried to compile the default RFNoC image for the N310, using UHD on tag
v3.15.0.0-
.4.
Regards,
Nate Temple
On Mon, Dec 9, 2019 at 7:33 AM Robert via USRP-users
mailto:usrp-users@lists.ettus.com>> wrote:
Hi all!
I tried to compile the default RFNoC image for the N310, using UHD on tag
v3.15.0.0-rc2 and Xilinx Vivado 2018.3.1.
Running "make N310_RFNOC_XG", th
Thanks for the bug report.
If you're just trying to use RFNoC at this point, I would recommend to stick
with the latest stable release, which at this time is v3.14.1.1.
Note, 3.14.x.x UHD will require Vivado 2017.4.
Regards,
Nate Temple
On Mon, Dec 9, 2019 at 7:33 AM Robert via USRP-use
Hi,
is the device configured correctly? External and QEC don't work together:
Apparently it is linked to the quadrature error correction (QEC) and can be
solved turning off this calibration. This can be done by setting
init_cals=BASIC, where you can add the relevant calibrations but avoid
RX_Q
] Follow up: n3xx master clock rate
Not sure if you are truly tied to the N310, but the X310 can support that
rate...
From: USRP-users On Behalf Of Robert via
USRP-users
Sent: Wednesday, July 24, 2019 3:29 AM
To: usrp-users@lists.ettus.com
Subject: [USRP-users] Follow up: n3xx master clock rate
Dear Ettus team,
a while ago there was a discussion about the master clock rates of the n3xx
devices, which restricts the usable sampling rates:
http://lists.ettus.com/pipermail/usrp-users_lists.ettus.com/2018-October/058292.html
A feature request was filed to enable additional master clock rate
Hi!
I agree with Johannes that Schmidl&Cox OFDM sync would be a nice extension.
Do you plan to provide pre-built FPGA images containing Theseus Cores in the
future for certain USRP devices? I guess this would make it even easier for
first time users and would well suit the "batteries included"
Hi all,
for me UHD v3.14.0.0-rc1 compiles with the latest DPDK on Ubuntu 18.04:
dpdk:amd64/bionic-updates 17.11.3-3~ubuntu0.18.04 uptodate
dpdk-dev:amd64/bionic-updates 17.11.3-3~ubuntu0.18.04 uptodate
Finally UHD is now also coming up in DPDK mode:
[INFO] [UHD] linux; GNU C++ version 7.3.0; Boos
Hi Kai,
I faced the same issue. Apparently it is linked to the quadrature error
correction (QEC) and can be solved turning off this calibration. This can be
done by setting init_cals=BASIC, where you can add the relevant calibrations
but avoid RX_QEC_INIT, see
https://files.ettus.com/manual/pa
x xx xx xx xx xx
EAL: Port 1 UP: 1
EAL: Init DONE!
EAL: Starting I/O threads!
USER2: Thread 1 started
[00:00:00.03] Creating the usrp device with:
...
We'll be updating the DPDK docs to reflect a few of these changes before the
final 3.14 release.
Regards,
Nate Temple
On Fri, Feb 8, 2
ing I/O threads!
USER2: Thread 1 started
[00:00:00.03] Creating the usrp device with:
...
We'll be updating the DPDK docs to reflect a few of these changes before the
final 3.14 release.
Regards,
Nate Temple
On Fri, Feb 8, 2019 at 6:40 AM Robert via USRP-users
mailto:usrp-users@lists.
I found this wiki page on DPDK: https://files.ettus.com/manual/page_dpdk.html
Tried to follow the described steps on Xubuntu 18.04 with UHD v3.14.0.0-rc1
(also updated SD and FPGA image) and Intel X520DA, but no success so far.
- IOMMU is enabled for NIC, checked with short bash script
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