Re: [USRP-users] Is it possible to time synchronize multiple USRPs B210?

2018-02-22 Thread Marcus D. Leech via USRP-users
On 02/22/2018 09:15 AM, Piotr Krysik via USRP-users wrote: Hi all, There was a thread on this topic started by Hideyuki Matsunaga that didn't resolve this question. I want to reiterate this question here but from different point: it seems that at this moment it isn't possible. I did my best to

[USRP-users] [UHD] Announcing 3.11.0.0 Release Candidate 1

2018-02-22 Thread Martin Braun via USRP-users
Hi all, it's been a long time since our last major UHD release! We'll have another one relatively soon, I've just tagged our RC1 and we're currently testing it for a while before we push it live. There are hundreds and hundreds of commits with respect to our latest stable release. The release not

[USRP-users] Using RFNoC through the C++ API

2018-02-22 Thread Adam Parower via USRP-users
Hello all, I am currently attempting to use RFNoC blocks through UHD's C++ API, without using GNU Radio. Right now I am simply trying to create a working example, and later I will add in or substitute my own custom RFNoC blocks. What I am trying to do is to replicate the standard transmit chai

Re: [USRP-users] Issues with B210 being plugged in on server bootup

2018-02-22 Thread Jorgen Scott via USRP-users
We get exactly these error codes as well but in a slightly different use case. Whenever we make a soft reboot with an "unloaded" B200/B200mini (i.e. the fpga image was never loaded) we get these error code and the board is not accessible. If the fpga image was loaded, soft reboot works. A p

Re: [USRP-users] "Additional signa"l after a packet transmission

2018-02-22 Thread NAVES Raphael via USRP-users
Hi Marcus, I have many USRPs N210 with different daughterboards. I tried with both SBXv3 and WBXv3 daughterboards and the result is the same : the spikes appear. The only difference is the spikes amplitude but it's not suprising because I noticed that with the same transmission paramaretes (g

[USRP-users] Issues with B210 being plugged in on server bootup

2018-02-22 Thread Sirkin, Joshua F. via USRP-users
Hi, we have a Dell server running Centos 7.4 with a B210 plugged into a USB 3 port on the back. Everything works great when we plug in the B210 after boot, but if the B210 is plugged in before boot the device is not recognized and we get these errors in dmesg: Usb 3-8: device descriptor read/6

Re: [USRP-users] "Additional signa"l after a packet transmission

2018-02-22 Thread Marcus Müller via USRP-users
Hi Raphael, don't think switching from GNU Radio to directly talking to UHD will change much – the GNU Radio USRP Sink is pretty much a thin wrapper around UHD. You might have already said that, but I can't find in this email chain: What's the daughterboards you're using in your TX USRP N210? Tha

Re: [USRP-users] help needed in setting up USRP 210

2018-02-22 Thread Robin Coxe via USRP-users
Hi Shrishail. Did you follow the instructions in the error message? >From the Linux command line, type: /usr/local/lib/uhd/utils/ uhd_images_downloader.py Then try running *uhd_find_devices* again. The FPGA bitstreams and firmware images for USRPs must be downloaded separately. This application

[USRP-users] help needed in setting up USRP 210

2018-02-22 Thread Shrishailayya M Hiremath via USRP-users
Dear All I have installed UHD and GNU radio using procedure given in the Ettus webpage. https://kb.ettus.com/Building_and_Installing_the_USRP_Open-Source_Toolchain_(UHD_and_GNU_Radio)_on_Linux. I could find the my USRP connected by command lsusb Bus 002 Device 004: ID 093a:2510 Pixart Imagin

Re: [USRP-users] "Additional signa"l after a packet transmission

2018-02-22 Thread NAVES Raphael via USRP-users
Hi Marcus, I'm only sending bursts of "null packets". I send them every 400 ms and I notice at the receiver side that the spikes happen exactly at the beginning of EACH transmission of null packets (for this verification I use GPS clock on the the transmitter and the reveiver). It's like if