Re: [USRP-users] N310 time offset between TX RF Outputs

Hello Michael, Sorry for the long delay of my answer: I just want to confirm that the reported issues are fixed with the N310 and UHD 3.13.1.0. Thanks! Serge On Fri, 4 Jan 2019 at 16:00, Michael West wrote: > Hi Serge, > > I have tried to reproduce the issue on an N310 and X310 with no succ

Re: [USRP-users] Extending 'tx_sample_from_file ' to send multiple files over multiple TX

On Thu, Feb 7, 2019 at 1:36 PM Ali Dormiani via USRP-users wrote: > 1. 1.25 Ms/s would be nice but lower is ok. We are trying to sound some > channels as a test so bandwidth is not a big deal. This rate seems low enough that it should work streaming from the N310 CPU. The ARM <> FPGA link should

Re: [USRP-users] Extending 'tx_sample_from_file ' to send multiple files over multiple TX

1. 1.25 Ms/s would be nice but lower is ok. We are trying to sound some channels as a test so bandwidth is not a big deal. 2. If gnuradio can run on the arm cpu then thats great! We already have python files (made by gr-companion) so all we would need to do is make a custom N310 filesystem that h

Re: [USRP-users] [UHD] Announcing 3.14.0.0 Release Candidate 1

Great news! DPDK support is an interesting development. Is there any documentation or examples which show this capability? Nick On Thu, Feb 7, 2019 at 10:05 AM Michael West via USRP-users < usrp-users@lists.ettus.com> wrote: > The release candidate of UHD version 3.14.0.0 has been tagged and is

Re: [USRP-users] Unexpected (increasing) latency for set_rx_gain

Hi Marcus, My mistake, there was a bug in my code. Sorry for any inconvenience. However I was expecting the latency to be more gaussian-like distributed, but in my new tests I can see an obvious trend so far (see upper figure ).

[USRP-users] [UHD] Announcing 3.14.0.0 Release Candidate 1

The release candidate of UHD version 3.14.0.0 has been tagged and is available for testing. This API release introduces support for the N320 and N321 USRPs soon to be released (watch for the announcement on ettus.com!), a DPDK-based transport, and several other features and bug fixes. This releas

Re: [USRP-users] thunderbolt to sfp+

Maybe the old driver is getting loaded by the kernel on boot? I had problems when first using ixgbe (Intel 10 Gbe) driver because I was lazy about unloading the stock (outdated) driver that came with the Linux distro. rmmod modprobe Can't think of what the issue could be with your Sonnet Solo

Re: [USRP-users] Old USRP2 - Network Link Issues

On 02/07/2019 12:33 PM, Iain Young via USRP-users wrote: Hi Folks, I have an old USRP2, which I recently acquired sans top/sides. It powers up and loads both the CPLD and firmware (LEDS D+F lit) just fine. LED B lights if I connect a MIMO cable. I have also placed the latest firmware on the SD c

[USRP-users] Old USRP2 - Network Link Issues

Hi Folks, I have an old USRP2, which I recently acquired sans top/sides. It powers up and loads both the CPLD and firmware (LEDS D+F lit) just fine. LED B lights if I connect a MIMO cable. I have also placed the latest firmware on the SD card. However, the gigabit ethernet won't come up. It attem

Re: [USRP-users] Extending 'tx_sample_from_file ' to send multiple files over multiple TX

> I just realized that even one instance of TX_sample_from_file from the > internal Linux is a no go. > > In fact I think I was in a thread about this very subject a few months ago. > Someone explicitly said the ARM cpu would be too weak to stream samples. > > Even streaming one file at the lowes

Re: [USRP-users] USRP X310 Ubuntu 16.04 LowLatency Timing Problems Possibly Because of UHD Drivers

On 02/07/2019 08:50 AM, akin soysal via USRP-users wrote: Dear all, We are trying to make the OpenAirInterface 5G SW work on our own setup with NI USRPs. We are trying to use it with the following configuration: sudo ./benchmark_rate --args "type=x300,addr=10.10.1.5,master_clock_rate=184.

[USRP-users] USRP X310 Ubuntu 16.04 LowLatency Timing Problems Possibly Because of UHD Drivers

Dear all, We are trying to make the OpenAirInterface 5G SW work on our own setup with NI USRPs. We are trying to use it with the following configuration: sudo ./benchmark_rate --args "type=x300,addr=10.10.1.5,master_clock_rate=184.32e6" --rx_rate 61.44e6 --tx_rate 61.44e6 --channels="0" For d

[USRP-users] B210/B200mini: sc12 format still broken?

Dear Ettus team, I'm currently using a B210 and a B200mini with the latest released UHD version on an Ubuntu 18.04LTS and Ubuntu 18.10 computer. Streaming from a B210 (single channel RX) with the sc12 wire format seems to be broken: If I have a look at the received I/Q signal I see a lot of larg

Re: [USRP-users] thunderbolt to sfp+

Dear Ali, I recently tried the Sonnet Solo 10G Ethernet to Thunderbolt 3 Adapter under Linux 18.04LTS and 18.10. This adapter has the AQC107S chip. In principle they work out of the box. You can set an MTU size larger than 1500 in Ubuntu (either via netplan or the old configuration). However, th