[USRP-users] Re: Updated rfnoc_modtool from v4.8.0.0

2025-01-30 Thread David
Brian, I wrote an email about this a couple days ago. The rfnoc_modtool doesn’t generate a yaml and a user can write one using the example at uhd/host/examples/rfnoc-example/blocks/gain.yml As a baseline. You may want to check that email for more info. Thanks, David On Thu, Jan 30, 2025 at

[USRP-users] Re: UHD 4.8 rfnoc_modtool create expectations

2025-01-29 Thread David
these options are listed and explained in detail in the RFNoC spec, and these suggestions are purely a quality of life change that would save me 15 minutes when I make a block. Thanks, David On Wed, Jan 29, 2025 at 2:27 AM Martin Braun wrote: > Hi David, > > and sorry for stumbling ov

[USRP-users] UHD 4.8 rfnoc_modtool create expectations

2025-01-28 Thread David
dits files from share and renames them, but I don't see the yaml created and it doesn't exist in /share/uhd/rfnoc-newmod/ Thanks, David ___ USRP-users mailing list -- usrp-users@lists.ettus.com To unsubscribe send an email to usrp-users-le...@lists.ettus.com

[USRP-users] Re: USRPN310 not connecting

2024-12-18 Thread Elkana David Cohen
Hi Martin If I run the command without changing the file parameters I get the error ERROR: [ Synth 8-448] named port connection 'gtrefclk' does not exist for instance 'core_support_i' of module 'one_gig_eth_pcs_pma_support' ERROR: [ Synth 8-448] named port connection 'gtrefclk_bufg' does not exist

[USRP-users] Two Channel DDC Synchronization With C++ RFNoC API

2024-12-15 Thread David
, and show the delay between channels in samples. 2. *Vivado Waveform Viewer*: When the ILA cores are collecting DDC channel data, I can see that the base image samples are available on the same clock. My image does not have that behavior. Thanks,

[USRP-users] Re: E320 UHD Connection Fault

2024-07-29 Thread David Raeman via USRP-users
Hi Emre, You can use UHD 4.6 with a USRP E320. However, the version on your host computer and on the USRP must be the same. You will need to update the E320 filesystem to also be on UHD 4.6. There are instructions in the “E320 Getting Started Guide”. Hope this helps, David From: Emre YILDIZ

[USRP-users] Re: GPS fix behavior on USRP E320

2024-06-05 Thread David Raeman via USRP-users
. So not an SDR issue, but perhaps this thread may help a USRP user in the future.. [1] https://www.usb.org/sites/default/files/327216.pdf From: Marcus D. Leech Sent: Wednesday, June 5, 2024 7:59 PM To: David Raeman ; usrp-users@lists.ettus.com Subject: Re: [USRP-users] Re: GPS fix behavior on

[USRP-users] Re: GPS fix behavior on USRP E320

2024-06-05 Thread David Raeman via USRP-users
change. I may try this on one radio and see if it helps improve consistency.. -David From: Marcus D. Leech Sent: Wednesday, June 5, 2024 8:56 AM To: usrp-users@lists.ettus.com Subject: [USRP-users] Re: GPS fix behavior on USRP E320 On 05/06/2024 08:43, David Raeman via USRP-users wrote: Hello

[USRP-users] GPS fix behavior on USRP E320

2024-06-05 Thread David Raeman via USRP-users
don't mind changing resistor populations if there is a reason to. Or any other suggestions around this topic? Thank you, David Raeman ___ USRP-users mailing list -- usrp-users@lists.ettus.com To unsubscribe send an email to usrp-users-le...@lists.ettus.com

[USRP-users] Re: About Two E320's Synchronization using GPSDO's

2024-04-22 Thread David Raeman via USRP-users
PSDO add-on module is installed, which doesn't seem to have been an issue with your prior results. I can try to follow-up with some measurements from our experiments, and I'd appreciate any additional insights you might find as well since this is still an active project for me

[USRP-users] Re: N320 Remote Power On

2023-10-25 Thread David Raeman via USRP-users
helps, David [1] https://kb.ettus.com/USRP_N300/N310/N320/N321_Getting_Started_Guide#Enable_Auto_Booting From: Brian Hay Sent: Wednesday, October 25, 2023 6:58 PM To: usrp-users@lists.ettus.com Subject: [USRP-users] N320 Remote Power On Hello, Does anyone know if the N320 has a remote power on

[USRP-users] Re: DPDK with X310 and Intel X520-DA

2023-09-29 Thread David Raeman via USRP-users
hat helps. For reference my working config is below, though it's from when UHD required DPDK version 18.11 so things might be a little different in recent versions. Best, -David [use_dpdk=1] dpdk_mtu=9000 dpdk_driver=/usr/local/lib/dpdk-pmds dpdk_corelist=24,26,28 dpdk_num_mbufs=8192 dpdk

[USRP-users] Re: TX Streamer Send Time

2023-09-25 Thread David Raeman
o read and account for ACKs for each burst. My use case is different, but I have an application that reuses a tx_streamer object for different transmissions, and this approach has worked for me to ensure the sample tail isn’t stuck in a queue between uses. Hope this helps, David From: Devin Kelly

[USRP-users] Re: Toggling a panel GPIO at a specific time (via RFNoC or otherwise)

2023-09-21 Thread David Raeman
blocks), and it’s unclear to me whether those pokes could get blocked in a queue behind a timed command. Assuming so, I might be able to sequence interactions to avoid that case. Thanks again, -David From: Rob Kossler Sent: Thursday, September 21, 2023 4:26 PM To: David Raeman Cc: usrp-users

[USRP-users] Toggling a panel GPIO at a specific time (via RFNoC or otherwise)

2023-09-21 Thread David Raeman
be overlooking some simpler approach, or any advice on how to plumb this into a custom RFNoC block. Thank you, -David ___ USRP-users mailing list -- usrp-users@lists.ettus.com To unsubscribe send an email to usrp-users-le...@lists.ettus.com

[USRP-users] Re: E320 not detecting any devices after power failure

2023-07-29 Thread David Raeman
but I vaguely recall that MPM discovery for an E320 worked using one of those ports but not the other. However, if you specify the address, it would work with either port. Again, I'm working from fuzzy memory here.. Hope this helps, David From: Ofer Sent: Saturday, July 29, 2023 1:47 A

[USRP-users] Re: [EXT] Re: N310 correct choice for coherent 4 channel RX w/ 1 TX ?

2023-07-26 Thread David J Li
? ZjQcmQRYFpfptBannerEnd On 26/07/2023 16:47, David J Li wrote: Hi all, I’m currently using a USRP N310 for an application that requires coherent 4 channel RX w/ the ability to TX on 1 channel as well. In the past, I’ve used USRP X310s to do 4 channel coherent RX and found the calibration

[USRP-users] N310 correct choice for coherent 4 channel RX w/ 1 TX ?

2023-07-26 Thread David J Li
alues hold pretty true for a long time as long as your gain/center freq don't change. Having the requirement of being able to TX on at least 1 channel prevents me from using an X310 w/ TwinRX cards. Thanks, -David ___ USRP-users mailing lis

[USRP-users] Re: num_recv_frames

2023-07-24 Thread david . fernandes
Thanks for your answer Marcus. I am starting thinking that may be I am making any mistake in my testing code, so I will post below the code I use in the **Rx side** and don’t hesitate to tell me if you see anything suspicious : `#define BURST_SIZE 2048 // Number of samples per Burst` `s

[USRP-users] Re: num_recv_frames

2023-07-24 Thread david . fernandes
Hi Marcus, The value returned is 242 ___ USRP-users mailing list -- usrp-users@lists.ettus.com To unsubscribe send an email to usrp-users-le...@lists.ettus.com

[USRP-users] Re: num_recv_frames

2023-07-18 Thread david . fernandes
nutes = 2400 Msamples. Thanks again for your support. Regards, David ___ USRP-users mailing list -- usrp-users@lists.ettus.com To unsubscribe send an email to usrp-users-le...@lists.ettus.com

[USRP-users] Re: num_recv_frames

2023-07-18 Thread david . fernandes
this because I performed some tests similar to those performed by Rob : I call recv(), I sleep some time and call recv() again. I saw that even when I sleep several minutes with a sample rate of 4Msps i still have no buffer overflow. Thank you very much for your support. David Fernandes

[USRP-users] Re: Manage multiple Tx streamers

2023-05-15 Thread david . fernandes
Hi Rob, Thank you very much for your answer, it is really helpful. I’ve tried to create several streamers as you suggested and it works. Thanks ! ___ USRP-users mailing list -- usrp-users@lists.ettus.com To unsubscribe send an email to usrp-users-le...@

[USRP-users] Manage multiple Tx streamers

2023-05-12 Thread david . fernandes
Hi everyone, I need to develop a system which streams independent samples at different moments to the differents channels (channel 0 and channel 1) of an USRP X310. To achieve that, I use the example codes available in the documentation which look like the following : // 1. Create the stream

[USRP-users] Re: Minimal sample rate with X310 ?

2023-05-12 Thread david . fernandes
Hi Marcus, Thank you very much for your response, it is very usefull. I am using 2 WBX-120 daughterboard cards. As you told (and according to the logs “*Actual sample rate: 0.390625 MSps”*), 512 seems to be the max decimation factor instead of 1024. I think this could be related to the version

[USRP-users] Minimal sample rate with X310 ?

2023-05-11 Thread david . fernandes
Hi everyone, I would like to transmit and receive with a sample rate of 280KHz but when I try it, I get the following messages : \[WARNING\] \[MULTI_USRP\] The hardware does not support the requested TX sample rate:\ Target sample rate: 0.28 MSps\ Actual sample rate: 0.390625 MSps \[WARNI

[USRP-users] Re: Can't find calibration file for X310

2023-05-09 Thread David Raeman
Note that because you are running these commands via sudo, the results may be in root’s home directory. From: zhou via USRP-users Sent: Tuesday, May 9, 2023 12:53 PM To: usrp-users@lists.ettus.com; Marcus D. Leech Subject: [USRP-users] Re: Can't find calibration file for X310 Thanks for your

[USRP-users] Re: Full duplex issues with X310

2023-05-04 Thread david . fernandes
Hi Marcus, Indeed, I tested so many things that I forgot to put the right frequencies. Now it works smoothly. Thank you very much for your support. ___ USRP-users mailing list -- usrp-users@lists.ettus.com To unsubscribe send an email to usrp-users-le..

[USRP-users] Re: Full duplex issues with X310

2023-05-02 Thread david . fernandes
The cables I use are SMA. ___ USRP-users mailing list -- usrp-users@lists.ettus.com To unsubscribe send an email to usrp-users-le...@lists.ettus.com

[USRP-users] Re: Full duplex issues with X310

2023-05-02 Thread david . fernandes
Hi Marcus, I performed some tests with a spectrum analyser and a signal generator as you have suggested and the problem seems to be in the RX side. Here are the results : * If I do 1 way transmission \[RF0, TX/RX\] ==> \[RF1, RX2\] : OK, it works everytime * If I do 1 way transmission \[RF1,

[USRP-users] Re: Full duplex issues with X310

2023-04-28 Thread david . fernandes
Hi Marcus, I have performed some tests physically looping TX/Rx to RX2 of the same channel, and results are the same. I tried as well to turn off and turn on the USRP between 2 consecutive tests, and It doesn’t seem to change anything. ___ USRP-users m

[USRP-users] Re: Full duplex issues with X310

2023-04-27 Thread david . fernandes
Yes, of course : \[INFO\] \[UHD\] linux; GNU C++ version 11.3.0; Boost_107400; UHD_4.1.0.6-0-g1a5b4fd2 \[INFO\] \[X300\] X300 initialization sequence... \[INFO\] \[X300\] Maximum frame size: 1472 bytes. \[INFO\] \[X300\] Radio 1x clock: 200 MHz _

[USRP-users] Re: Full duplex issues with X310

2023-04-27 Thread david . fernandes
I tested with “No Sync” in both Sink and source and there is no difference. I tested using the “Start Time” parameter in order to start first the Rx and then some seconds later the Tx, but I have no luck..… ___ USRP-users mailing list -- usrp-users@list

[USRP-users] Re: Full duplex issues with X310

2023-04-27 Thread david . fernandes
Thanks for the information, I didn’t know it. Sadly, I performed tests with 1Msps and 0.5Msps and 20 db Gain in Rx and it doesn’t change. I'm trying to figure out if there is any condition of when it works and when it doesn't, but I can't, it seems quite random. _

[USRP-users] Re: Full duplex issues with X310

2023-04-27 Thread david . fernandes
Hi Marcus, I tried to wait 1 minute before starting a new test and it has no impact. Here are the logs displayed by GNU Radio of 2 successive tests, the first was successfull and the second launched 1 minute later failed. 1st TEST (successful) : > Generating: '/home/davidfernandes/tests_gnurad

[USRP-users] Re: Full duplex issues with X310

2023-04-27 Thread david . fernandes
Hi Marcus, * yes, I have two WBX cards in the X310. I have now added the value "A:0 B:0" in the “Mb0: Subdev Spec” parameter on both source and sink. * The Tx and Rx are connected directly with a cable with a 35dB attenuation. * I have added a Gain value of 10dB in both Tx and Rx and I see nea

[USRP-users] Re: Full duplex issues with X310

2023-04-27 Thread david . fernandes
Hi Marcus, Thank you for your quick response. I modified the flowgraph according to your suggestions and now it seems to work sometimes. I don’t know why, but it can work now if I run the test, but it probably won’t work in the following 10 tests… Do you have any idea of why it has this behavio

[USRP-users] Re: Full duplex issues with X310

2023-04-27 Thread david . fernandes
Hi Marcus, Thank you for your quick response. I modified the flowgraph according to your suggestions and now it seems to work sometimes. I don’t know why, but it can work now if I run the test, but it probably won’t work in the following 10 tests … Do have any ide options: parameters: aut

[USRP-users] Full duplex issues with X310

2023-04-26 Thread david . fernandes
Hi everyone, I am trying to perform full duplex communication with my X310 in the following way using GNU Radio :\ \ \[RF0, TX/RX\] ==> \[RF1, RX2\] \[RF1, TX/RX\] ==> \[RF0, RX2\] But I see no signals in the reception sides. However, If I disable the transmission in 1 channel, I can see the s

[USRP-users] Re: configuring X410 USRP to work with higher sampling frequency/band width

2023-04-25 Thread David Raeman
circle back to it recently. I found this to be a useful primer: https://www.suse.com/c/cpu-isolation-introduction-part-1/ Hope this in some way helps, David > -Original Message- > From: Jim Schatzman > Sent: Tuesday, April 25, 2023 6:51 PM > To: Marcus D. Leech > Cc: usrp

[USRP-users] Re: Harmonic Distortion with B205mini

2023-04-17 Thread David Bengtson
You've seen the filters from Pole-Zero, right? Tunable, but very narrow BW. I keep reading abstracts in IEEE journals but I haven't seen anything interesting. Sub-octave band counts add up fast :-( Dave On Sun, Apr 16, 2023 at 9:36 PM Marcus D. Leech wrote: > On 16/04/2023

[USRP-users] Re: Harmonic Distortion with B205mini

2023-04-16 Thread David Bengtson
Yes, it's pretty typical that the output of an SDR needs additional filtering and gain on the transmit side, and similarly filters and gain on the receive side. I spent a substantial fraction of my time at a previous job designing application specific front ends for Ettus SDR's. Dave On Wed, Apr

[USRP-users] USRP Daughterboard Calibration - Need to remove/replace bulkhead cables?

2023-04-13 Thread Greene,David J
d be willing to pass down? It's much appreciated. All the best, David Greene University of Florida ___ USRP-users mailing list -- usrp-users@lists.ettus.com To unsubscribe send an email to usrp-users-le...@lists.ettus.com

[USRP-users] Re: B200mini spurs

2023-02-01 Thread DAVID ABEL
- Original Message -- From: "Marcus D. Leech" To: "DAVID ABEL" Sent: Wednesday, 1 Feb, 2023 At 5:33 AM Subject: Re: [USRP-users] Re: B200mini spurs On 31/01/2023 06:17, DAVID ABEL wrote: Neither the spur amplitude (in dBc) nor the offset are affected by the baseban

[USRP-users] B200mini spurs

2023-01-29 Thread DAVID ABEL
I have a B200mini.  As a test of spectral purity, I generated a CW signal at 175.0025 MHz using Gnuradio,  I see spurs at +/- 132.5 kHz, at -50 dBc; with offsets of 265 kHz  at -60 dBc; and another at 702.5 Khzat -60 dBc. Is this expected behavior for the B200 mini, please? Some further deta

[USRP-users] Re: E320 Autoboot

2023-01-23 Thread David Raeman
this helps, David From: Yasir Özçalık Sent: Monday, January 23, 2023 3:13 AM To: usrp-users Subject: [USRP-users] E320 Autoboot Hi everyone, I have an E320 which does not autoboot. I am trying to activate it. When I searched documents for this, I found that there are flags on the microcontroller

[USRP-users] Re: Changing frequency drift across E320 radios with common clock

2023-01-15 Thread David Raeman
d I'm now seeing the stable phase relationship across receive windows for separate radios with common clock. Cheers, -David From: Marcus D. Leech Sent: Wednesday, January 11, 2023 5:33 PM On 11/01/2023 13:45, David Raeman wrote: I’m working on a project that involves phase-coherent recept

[USRP-users] Re: Changing frequency drift across E320 radios with common clock

2023-01-11 Thread David Raeman
.. Nevermind on the final point, and kudos to Ettus for providing a very easy approach for rebuilding the on-radio MPM libraries here: https://files.ettus.com/manual/page_usrp_e3xx.html#e3xx_software_dev_mpm_native From: David Raeman Sent: Wednesday, January 11, 2023 1:45 PM To: usrp-users

[USRP-users] Changing frequency drift across E320 radios with common clock

2023-01-11 Thread David Raeman
in/procedure to rebuild the libraries on the radio? Thanks, -- David Raeman Synoptic Engineering ___ USRP-users mailing list -- usrp-users@lists.ettus.com To unsubscribe send an email to usrp-users-le...@lists.ettus.com

[USRP-users] Re: N320 LO stability problem

2022-11-02 Thread David Raeman
erested in following any further research/improvements that reduce phase noise on either radio architecture. Best, David From: Jim Palladino Sent: Wednesday, November 2, 2022 1:33 PM To: David Raeman ; Marcus D. Leech ; USRP-users@lists.ettus.com Subject: Re: [USRP-users] Re: N320 LO stability proble

[USRP-users] Re: N320 LO stability problem

2022-11-02 Thread David Raeman
try on your end if upgrading UHD is onerous.. Cheers, David From: Jim Palladino Sent: Wednesday, November 2, 2022 8:38 AM To: Marcus D. Leech ; usrp-users@lists.ettus.com Subject: [USRP-users] Re: N320 LO stability problem Hello, Thanks for the responses. Yes, I have the same issue with tones

[USRP-users] Re: E320: Periodic phase jumps w/ any external clock?

2022-09-09 Thread David Raeman
but is not documented for the E320. -David [1] https://files.ettus.com/manual/page_usrp_b200.html#b200_known_issues ___ USRP-users mailing list -- usrp-users@lists.ettus.com To unsubscribe send an email to usrp-users-le...@lists.ettus.com

[USRP-users] Re: E320: Periodic phase jumps w/ any external clock?

2022-09-07 Thread David Raeman
r the suggestion! Cheers, David > -Original Message- > From: Piotr Krysik > Sent: Wednesday, September 7, 2022 9:31 AM > To: usrp-users@lists.ettus.com > Subject: [USRP-users] Re: E320: Periodic phase jumps w/ any external clock? > > Hi David, > > I've seen so

[USRP-users] E320: Periodic phase jumps w/ any external clock?

2022-09-02 Thread David Raeman
F4002 PLL. The internal clock runs at 20MHz, but I was able to try an external clock at that rate (required a 2-line patch to UHD) and it didn't make a difference. The only other USRP I have on hand is an N320, and this issue does not seem to happen on that radio model when I use the same

[USRP-users] Re: N310 Sample Rate

2022-08-02 Thread David Raeman
10Msps upper-bound seems like it'd limit the applications that could be developed in embedded mode for the E-series.. -David ___ USRP-users mailing list -- usrp-users@lists.ettus.com To unsubscribe send an email to usrp-users-le...@lists.ettus.com

[USRP-users] Re: E320 Automatic master clock

2022-06-06 Thread David Raeman
he E320 doesn't seem to support this, but I think it's just a matter of missing bits in the software. Best, -David > -Original Message- > From: Jon Beniston > Sent: Monday, June 6, 2022 6:46 PM > To: 'Marcus D. Leech' ; usrp- > us...@lists.ettus.com

[USRP-users] Re: E320 Automatic master clock

2022-06-06 Thread David Raeman
it's wrapping.. Best, David > -Original Message- > From: Jon Beniston > Sent: Monday, June 6, 2022 1:33 PM > To: 'Marcus D. Leech' ; usrp- > us...@lists.ettus.com > Subject: [USRP-users] Re: E320 Automatic master clock > > Hi Marcus, > &

[USRP-users] Re: GPS invalid reply

2022-06-01 Thread David Raeman
.. Sorry, just realized the GPSDO apparently does use SCPI-99 commands. :) From: David Raeman Sent: Wednesday, June 1, 2022 12:51 PM To: Marcus D. Leech ; usrp-users@lists.ettus.com Subject: RE: [USRP-users] Re: GPS invalid reply The error string is also suspicious.. *IDN? is a command used to

[USRP-users] Re: GPS invalid reply

2022-06-01 Thread David Raeman
The error string is also suspicious.. *IDN? is a command used to identify lab instruments that implement SCPI protocols, and I’m not familiar with any GPS receiver that interfaces using SCPI. Is it possible you have some kind of instrument-control service on your computer (LabView, Keysight IO,

[USRP-users] Re: Why do we need 1 PPS and 10 MHz signal to synchronize

2022-05-13 Thread David Raeman
clock is later reapplied while running. I can’t specifically speak to the B200 or UHD 3.15. Hope this helps, David From: Marcin Puchlik Sent: Friday, May 13, 2022 10:38 AM To: Marcus D. Leech Cc: usrp-users@lists.ettus.com Subject: [USRP-users] Re: Why do we need 1 PPS and 10 MHz signal to

[USRP-users] Supporting power calibration for USRP E320

2022-05-07 Thread David Raeman
e the B2xx models also use the AD9361 and already support this, my inclination is to copy similar logic for E3xx. Just wanted to make sure I'm not missing any hiccups that might explain why support was excluded for these radios. Thanks, David -- David Raeman Synop

[USRP-users] Re: Programmatic determine rfnoc_chdr_clk from UHD?

2022-04-27 Thread David Raeman
Thanks Wade and Marcus – I appreciate the insights and will make some tweaks on my end as a workaround. Best, David From: Wade Fife Sent: Wednesday, April 27, 2022 1:21 PM To: Marcus D. Leech Cc: usrp-users@lists.ettus.com Subject: [USRP-users] Re: Programmatic determine rfnoc_chdr_clk from

[USRP-users] Programmatic determine rfnoc_chdr_clk from UHD?

2022-04-27 Thread David Raeman
p it into a register within my RFNoC block, but I wanted to make sure I'm not missing something in the existing framework. Calling get_tick_rate() on the block control object just returns 0. Thanks! David [1] https://kb.ettus.com/RFNoC_Frequently_Asked_Question

[USRP-users] Re: Substitute power plug part for USRP E320?

2022-04-25 Thread David Raeman
Thanks Wade – I can confirm these worked. Best, David From: Wade Fife Sent: Thursday, April 21, 2022 3:29 PM To: David Raeman Cc: USRP-users@lists.ettus.com Subject: Re: [USRP-users] Substitute power plug part for USRP E320? Hi David, I think the Kycon KPPX-4P is compatible, but I've

[USRP-users] Substitute power plug part for USRP E320?

2022-04-20 Thread David Raeman
t I'd appreciate feedback on any known-good solutions here. Thanks! -- David Raeman Synoptic Engineering ___ USRP-users mailing list -- usrp-users@lists.ettus.com To unsubscribe send an email to usrp-users-le...@lists.ettus.com

[USRP-users] Supporting ttyUSB peripherals on the Linux filesystem?

2022-03-17 Thread David Raeman
uild the kernel bits, not the full filesystem. I'd appreciate any thoughts on whether this type of customization is generally done, and any pointers on the quickest/easiest approach. :) Thanks, David -- David Raeman Synoptic Engineering ___ USRP-u

[USRP-users] Ettus Projects?

2022-03-15 Thread David Horn
Hi All! My name's David, and I am the MarCom Manager at Digilent. We sell Ettus projects on our site (we're also part of NI), but we don't have a ton of experience with SDR on our Applications team. I am wondering if you all wouldn't mind sending me your favorite Ettus p

[USRP-users] E312 auto static IP on cable connection

2022-03-14 Thread David Scott
-manager installed (like e.g. Ubuntu). I have modified /etc/init.d/interfaces but it seems to ignore this file completely, not even using it to set IP on system boot. Any ideas? Kind regards, David [1641888664830]<https://gmvnsl.com/> David Scott Junior Software Developer T. +44 (0)1

[USRP-users] Re: Question about external refclk into N320

2022-02-25 Thread David Raeman
Thanks all – I think that all makes sense. So the input clock is AC coupled, which strips the DC component, then the level is clamped by the diodes. Thus the TI chip always gets a clipped sinewave regardless of what the input signal looked like.. ___

[USRP-users] Question about external refclk into N320

2022-02-25 Thread David Raeman
onfirm? Thanks! -- David Raeman Synoptic Engineering ___ USRP-users mailing list -- usrp-users@lists.ettus.com To unsubscribe send an email to usrp-users-le...@lists.ettus.com

[USRP-users] Re: OAI with USRP N310

2022-02-15 Thread David Raeman
, David ___ USRP-users mailing list -- usrp-users@lists.ettus.com To unsubscribe send an email to usrp-users-le...@lists.ettus.com

[USRP-users] UHD 4.1.0.5 breaks support for DPDK on 10GbE links

2022-02-09 Thread David Raeman
places (e.g. DEFAULT_FRAME_SIZE in dpdk_common.cpp). In the meantime, my temporary solution is to locally revert commit a629ce3a46 until it can be confirmed with DPDK with 10GbE. Cheers, -- David Raeman Synoptic Engineering ___ USRP-users mailing list --

[USRP-users] Re: Timed Commands Not Working

2022-02-04 Thread David Raeman
.. Now that I look closely at test_timed_commands, I'm more confused. My understand of set_command_time is that it sets an FPGA register of the future time at which to process subsequent commands, but none of the calls will block. If the application wants to wait for the timed command to occur,

[USRP-users] Re: Timed Commands Not Working

2022-02-04 Thread David Raeman
Seeing the same behavior using UHD 4.1.0.1 on my N320 and E320, using internal clock and time sources: $ ./lib/uhd/examples/test_timed_commands --args addr=192.168.10.2 Creating the usrp device with: addr=192.168.10.2... [INFO] [UHD] linux; GNU C++ version 9.3.0; Boost_107100; UHD_4.1.0.HEAD-0-

[USRP-users] Re: N320: external ref clock with internal gpsdo timing source

2022-02-04 Thread David Raeman
o hear why this constraint exists. David ___ USRP-users mailing list -- usrp-users@lists.ettus.com To unsubscribe send an email to usrp-users-le...@lists.ettus.com

[USRP-users] N320: external ref clock with internal gpsdo timing source

2022-02-03 Thread David Raeman
ond call is silently coercing the ref clock to be gpsdo, without any indication even a debug print statement (in the MPM periph_manager code). Thanks & Cheers, -- David Raeman Synoptic Engineering ___ USRP-users mailing list -- usrp-users@lists.e

[USRP-users] Daughterboard Schematics

2021-09-22 Thread Greene,David J
;Rev.5" version, along with the latest schematic, has "X2" in that position and L31 is gone. There are various other component changes that I want to make sure I'm replacing with the correct values. Thanks! All the best,

[USRP-users] Building gnuradio cross compile for E312, pyton version issue

2021-04-12 Thread David Scott
eLists.txt:338 (include) -- Configuring incomplete, errors occurred! See also "/home/dscc/gnuradio/build-arm/CMakeFiles/CMakeOutput.log" Is there a more up to date version of the sdk with python version 3.6.5 minimum? Or am I missing some other step? Thanks, David P Please consider the enviro

Re: [USRP-users] tune speed ussue

2021-01-19 Thread David Evans via USRP-users
Hi all, I am not an expert on this, but recently speaking to someone a little more in the know than I... Marcus is right, also it is apparently possible to pre-calibrate in advance and save the calibration settings to registers on the AD9361, thus making the tune time constant. Just a thought,

[USRP-users] E312 Battery Question

2021-01-14 Thread David Scott via USRP-users
than 24 hours so I am wondering if it is possible to run the device with the battery disconnected? Will the E312 function without the battery connected internally? And are their any snags I should be aware of? Many Thanks, David P Please consider the environment before printing this e-mail

[USRP-users] One-Sample offsets with external ref/pps

2020-12-18 Thread Haberleitner, David via USRP-users
n the boards and sometimes all boards are in sync. Is this a known issue? Thanks, David // // Copyright 2011 Ettus Research LLC // Copyright 2018 Ettus Research, a National Instruments Company // // SPDX-License-Identifier: GPL-3.0-or-later // #include #include #include #include #in

[USRP-users] Power decrease and phase coherence in USRP 2945

2020-12-02 Thread Pisonero-Fuentes David (Becario) via USRP-users
Hi. We have developed a project using the USRP 2945 and UHD libraries to estimate a signal's direction of arrival. In this project, the four channels of the USRP 2945 are connected through a power splitter to a function generator, and the local oscillators in the back are connected following

Re: [USRP-users] Raspberry Pi 4 sampling Rate

2020-11-04 Thread David Evans via USRP-users
I too was able to sustain around 12Msps on an XU4+B200mini, and was also able to get OpenBTS to work. Marcus, hope it's OK to ask, but did you use a USB3 hub? When I tried it the XU4 was unable to supply enough current, causing the SDcard to get corrupted (I had a lot of fun with this!), the sol

Re: [USRP-users] Underruns causing USRP to stop transmitting and receiving

2020-10-21 Thread David Evans via USRP-users
I had a similar issue to this with 4.0.0 a couple of months ago, posted on this group and told I would have to wait for the next release where it would hopefully be fixed. So maybe it's still there, I had to revert to 3.9.7. The issue was with high rates (20M+ on my hardware) causing rx_samples

Re: [USRP-users] B210 USRP object creation

2020-10-12 Thread David Taylor (manx.net) via USRP-users
I would wish to do again in a hurry..!! Regards, David Taylor GD4FMB / University Researcher. From: Sam Reiter Sent: Saturday, October 10, 2020 2:41 PM To: David Taylor (manx.net) Cc: Marcus D. Leech ; usrp-users@lists.ettus.com Subject: Re: [USRP-users] B210 USRP object creation Actually, I

Re: [USRP-users] B210 USRP object creation

2020-10-10 Thread David Taylor (manx.net) via USRP-users
response [ERROR [USB] USB open failed: insufficient permissions. See the application notes for your device. Perhaps a very cautious patch to the programmer code might help as a workaround? I will take a look. Best regards, David Taylor From: Sam Reiter Sent: Friday, October 9, 2020 10:01 PM

Re: [USRP-users] B210 USRP object creation

2020-10-09 Thread David Taylor (manx.net) via USRP-users
tried carefully editing the uhd-usrp.rules file to comply with the new pid value, but without success. Perhaps a cautionary warning should be added to the EEPROM on USRP devices note! Regards, David From: Marcus D. Leech via USRP-users Sent: Thursday, October 8, 2020 8:42 PM To: usrp-users

Re: [USRP-users] B210 USRP object creation

2020-10-08 Thread David Taylor (manx.net) via USRP-users
)” The aim is to be able to manipulate some GPIO bits in the block work function and to align events using the 1PPS input. Regards, David GD4FMB From: Marcus D. Leech via USRP-users Sent: Thursday, October 8, 2020 7:53 PM To: usrp-users@lists.ettus.com Subject: Re: [USRP-users] B210 USRP object

Re: [USRP-users] B210 USRP object creation

2020-10-08 Thread David Taylor (manx.net) via USRP-users
usual ‘block’ attribute error message. There are no USRP source or sink blocks in the flow-graph that could possibly conflict. Regards, David From: Marcus D. Leech via USRP-users Sent: Wednesday, October 7, 2020 6:20 PM To: usrp-users@lists.ettus.com Subject: Re: [USRP-users] B210 USRP

[USRP-users] B210 USRP object creation

2020-10-07 Thread David Taylor (manx.net) via USRP-users
Hi. I am trying to exercise the GPIO bits on my B210 and to run other UHD member functions in a C++ OOT block. Can anyone provide me with a suitable make (object) statement for use with this transceiver. Many thanks, David Taylor___ USRP-users mailing

[USRP-users] B210 PPS SYNC Issue when Both RX Chans

2020-09-24 Thread David Merit via USRP-users
Hi, This seems to be a bug in Capturing timed samples.. Can anyone suggest ways around this? Im thinking of adding another 'set-time' before subsequent stream_cmds , or maybe theres something else I can put in a stream cmd? can the meta-data structure sent to recv() do anything useful to resolve

Re: [USRP-users] b200mini stops sampling

2020-09-12 Thread David Evans via USRP-users
git tag Ron On 9/11/20 10:38, Marcus D Leech via USRP-users wrote: That should be fine. GIT is arcane. Others have more facility with it than I. Sent from my iPhone On Sep 11, 2020, at 12:07 PM, David Evans via USRP-users wrote:  Thanks Marcus, Sorry,, I know this isn't the

Re: [USRP-users] b200mini stops sampling

2020-09-11 Thread David Evans via USRP-users
0/09/2020 16:43, Marcus D. Leech via USRP-users wrote: On 09/10/2020 08:55 AM, David Evans via USRP-users wrote: Hi, I have just installed the latest "master" branch of UHD (4.0.0.0). If an overrun occurs during sampling, sampling does not continue thereafter. I noticed this with uhd_ff

[USRP-users] b200mini stops sampling

2020-09-10 Thread David Evans via USRP-users
Hi, I have just installed the latest "master" branch of UHD (4.0.0.0). If an overrun occurs during sampling, sampling does not continue thereafter. I noticed this with uhd_fft, which hangs with rates over 8MHz, and also rx_samples_to_file: ./rx_samples_to_file --freq 9 --rate 4000

Re: [USRP-users] List of filters and where they are located

2020-08-26 Thread David Carsenat via USRP-users
Ok understood. Many thanks again. David Le mer. 26 août 2020 à 22:15, Julian Arnold a écrit : > David, > > unfortunately not. The filter API does only export the filters internal > to the AD9361 on B2xx series devices. > However, if you let MCR = sample rate you should basi

Re: [USRP-users] List of filters and where they are located

2020-08-25 Thread David Carsenat via USRP-users
Ok thanks a lotJulian, this is very helpful. Does your example allow to list FPGA filters also ? Le mar. 25 août 2020 à 21:57, Julian Arnold a écrit : > David, > > take a look at the ad9361 user guide [1]. It has all the information you > are looking for. > > If you want to

[USRP-users] List of filters and where they are located

2020-08-25 Thread David Carsenat via USRP-users
tions : Can I address and change filters behaviours that are part only on FPGA or also the AD9361 filters ? Many thanks David ___ USRP-users mailing list USRP-users@lists.ettus.com http://lists.ettus.com/mailman/listinfo/usrp-users_lists.ettus.com

Re: [USRP-users] GRC up-grade - installation issues

2020-08-09 Thread David Taylor (manx.net) via USRP-users
aforementioned script is auto generated without modification from gr_modtool add <..> ? There are some excellent reference .yml examples to be found in /usr/share/gnuradio/grc/blocks. 2). PYTHONPATH – I have checked the basics with out success. Thanks in advance for any assistance. David Fro

[USRP-users] X310 multi_usrp offsets of up to one sample

2020-08-05 Thread David Haberleitner via USRP-users
ferent states/counter values). This would result in offsets in the 200MHz domain of the baseband samples. Thanks, David ___ USRP-users mailing list USRP-users@lists.ettus.com http://lists.ettus.com/mailman/listinfo/usrp-users_lists.ettus.com

Re: [USRP-users] GRC up-grade - installation issues

2020-08-03 Thread David Taylor (manx.net) via USRP-users
modified for shared_ptr use. David. From: Ron Economos via USRP-users Sent: Monday, August 3, 2020 3:36 AM To: usrp-users@lists.ettus.com Subject: Re: [USRP-users] GRC up-grade - installation issues You don't need to supply a Findpybind11.cmake file. That is already provided by the pyb

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