My end goal is to use Gnuradio with an N320 to support 250 MS/s streaming. I
am posting to the USRP users list first, because I think that's the current
area of the problem. I suspect I have a permissions or uhd.conf issue, but the
documentation on how to set this up correctly is lacking.
I c
y, assume one CPU core per stream for the
wire- to CPU-format conversion, plus a bit of demand for someone
handling OS/network card interrupts.
What're you doing with the samples afterwards?
Best regards,
Marcus
On Fri, 2019-09-06 at 21:53 +, Lundberg, Daniel via USRP-users
wrote:
> D
Does anyone have a known good hardware configuration to support full (or at
least close to full) 200 MS/s streaming from the N320? Preferably with 1 Tx
and 2 Rx channels.
As a data point, a recent i3 (4 cores) seems to be choking above 62.5 MS/s.
This is over dual SFP+ ports. At higher sampli
Just a couple of sanity checks on this...You have to make sure that
1) You don't already have a GPSDO installed on your B210. If you do, the
external reference won't make it in.
2) Assuming you don't have the GPSDO, you have to tell the B210 to use the
external reference instead of i
I had a similar problem where I wanted to measure the phase and magnitude
stability of a system over long periods of time, but only needed small chunks
of data to characterize the drift. I solved this by creating a top block that
uses the head block and a file sink to write a defined number of
mething else might be
going on. But the 2x64 version looks like it's limited to 32 MiB.
Thanks,
Wade
On Fri, Nov 2, 2018 at 5:07 PM Lundberg, Daniel via USRP-users
mailto:usrp-users@lists.ettus.com>> wrote:
I am following the instructions for using the replay block with the N310
(
andle more than 32 MiB. If that's the file you're using (which
is what's normally referenced in n3xx_core.v) then something else might be
going on. But the 2x64 version looks like it's limited to 32 MiB.
Thanks,
Wade
On Fri, Nov 2, 2018 at 5:07 PM Lundberg, Daniel via USRP-
I am following the instructions for using the replay block with the N310
(https://kb.ettus.com/Using_the_RFNoC_Replay_Block). I have established that I
can replay play a relatively small file (~5 MB) without issues. However, for
much larger files, I get some strange artifacts on the output (pe
tiple devices using both
the v3.13.0.3-rc1 tag and head of master. We will continue investigating and
report back with any new information.
Regards,
Michael
On Mon, Oct 29, 2018 at 7:07 AM Lundberg, Daniel via USRP-users
mailto:usrp-users@lists.ettus.com>> wrote:
I think I am seeing the same o
using both
the v3.13.0.3-rc1 tag and head of master. We will continue investigating and
report back with any new information.
Regards,
Michael
On Mon, Oct 29, 2018 at 7:07 AM Lundberg, Daniel via USRP-users
mailto:usrp-users@lists.ettus.com>> wrote:
I think I am seeing the same or a simi
I think I am seeing the same or a similar problem using the latest master
(which I think is roughly equivalent to 3.13.0.3 RC1, correct me if I am wrong)
on an N310.
When I save a signed 16-bit binary file and feed it into the
replay_sample_from_file example, I can only provide it with a full-sc
FPGA code.
Thanks,
Wade
On Thu, Oct 18, 2018 at 9:38 AM Lundberg, Daniel via USRP-users
mailto:usrp-users@lists.ettus.com>> wrote:
I am trying to to work with the RFNoc replay block on an N310. I have followed
the instructions here: https://kb.ettus.com/Using_the_RFNoC_Replay_Block
I hav
ently, uhd master is at 7130059 and fpga should be at 340bb07. I know that
error would occur with older versions of the FPGA code.
Thanks,
Wade
On Thu, Oct 18, 2018 at 9:38 AM Lundberg, Daniel via USRP-users
mailto:usrp-users@lists.ettus.com>> wrote:
I am trying to to work with the RFNoc repl
I am trying to to work with the RFNoc replay block on an N310. I have followed
the instructions here: https://kb.ettus.com/Using_the_RFNoC_Replay_Block
I have Ubuntu 18.04, and the current master branch of UHD.
Those instructions are for the X3xx, but I tried modifying them for the N310,
by do
ation with your host NIC failed) so it defaults to the slower of the two
modes.
On Mon, Oct 15, 2018 at 3:22 PM Lundberg, Daniel via USRP-users
mailto:usrp-users@lists.ettus.com>> wrote:
I am using Ubuntu 18.04, an N310 with the current master builds. I am
currently testing basic
I am using Ubuntu 18.04, an N310 with the current master builds. I am
currently testing basic operation using a USB/Ethernet adaptor for the
management connection, and a 1 GB Ethernet connection straight from the
computer's NIC port to the SFP0 port on the N310.
I have built from source and ca
A bit of background:
I have been using a B205i mini to transmit a variety of pre-computed waveforms.
These have ~5 MHz of BW, and I've been streamin binary files sampled at 6.25
MS/s. I use a modified version of the tx_samples_from_file example, using a
host laptop via a USB 3.0 to Ethernet ad
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