Re: [USRP-users] warning on UDP buffer size when using Python API

2017-09-22 Thread Andrej Rode via USRP-users
Hi, On Fri, Sep 22, 2017 at 08:38:32PM +, Osvaldo Alcala (Ozzie) wrote: > Thank you. I should have said that I did try the command that shows in the > screenshot, but the required buffer size keeps changing: thus I get the same > error every time. So maybe in your script/application you ha

Re: [USRP-users] warning on UDP buffer size when using Python API

2017-09-22 Thread Osvaldo Alcala (Ozzie) via USRP-users
Thank you. I should have said that I did try the command that shows in the screenshot, but the required buffer size keeps changing: thus I get the same error every time. Thanks Oz -Original Message- From: Andrej Rode [mailto:m...@andrejro.de] Sent: Friday, September 22, 2017 12:15 PM

Re: [USRP-users] C674 fail on B210 rev 4

2017-09-22 Thread Robin Coxe via USRP-users
Hi Billy. C674 is Kemet T495C107K016ATE200 CAP,SM,100UF,16V,10%,TANTALUM,6032. Schematics for the B210 are available here: http://files.ettus.com/schematics/b200/b210.pdf -Robin On Fri, Sep 22, 2017 at 8:23 PM, Billy Jones via USRP-users < usrp-users@lists.ettus.com> wrote: > I have been usi

[USRP-users] C674 fail on B210 rev 4

2017-09-22 Thread Billy Jones via USRP-users
I have been using a B210 board for about a week now to run OpenBTS and OpenBTS-UMTS. I left the board powered on in its enclosure overnight, and when I arrived in the morning discovered it not working, the power led flickering, and my computer alerting that there was a USB power surge. I took

Re: [USRP-users] warning on UDP buffer size when using Python API

2017-09-22 Thread Andrej Rode via USRP-users
Hi, On Fri, Sep 22, 2017 at 02:12:06AM +, Osvaldo Alcala (Ozzie) via USRP-users wrote: > Hi, I'm running with the Python API and I keep getting the following warning > (see pic below). I go ahead and change the buffer size per the command > listed, but I still get the warning again with di

Re: [USRP-users] warning on UDP buffer size when using Python API

2017-09-22 Thread Marcus Müller via USRP-users
Dear Oz, what's the different numbers you get? Also note that it's actually easier for us to read when you just copy and paste the text instead of making a screenshot. Thanks! Best regards, Marcus On 09/21/2017 07:12 PM, Osvaldo Alcala (Ozzie) via USRP-users wrote: > > Hi, I’m running with t

Re: [USRP-users] High CPU load on UHD driver and Ether ISR

2017-09-22 Thread Marcus Müller via USRP-users
Dear Kobayashi-san, You want to make sure the size of the network packets is as large as possible to reduce overhead; UHD will print out the information of how many bytes are in a single packet during initialization. You might need to tell Linux that it needs to use a larger MTU (8000B should work

Re: [USRP-users] Phase jumps in USRP B210 with GPSDO

2017-09-22 Thread Piotr Krysik via USRP-users
Hi Sylvain, W dniu 22.09.2017 o 11:44, Sylvain Munaut pisze: > Hi Piotr, > > > And do you set both the Clock and Time source to the external ones > when using it in that configuration ? I think I have written this at least twice before. I will try again to describe it again as clear as I can. Reci

Re: [USRP-users] Phase jumps in USRP B210 with GPSDO

2017-09-22 Thread Sylvain Munaut via USRP-users
Hi Piotr, And do you set both the Clock and Time source to the external ones when using it in that configuration ? I just had a look at both the schematic and VHDL and there is actual switches ... the GPSDO 10M and PPS should basically be completely disconnected when the reference for time and c

[USRP-users] High CPU load on UHD driver and Ether ISR

2017-09-22 Thread Kobayashi, Noboru via USRP-users
Hi, all I'm working in a LTE related system using Ettus X310, using UHD driver on CentOS 7.3 base real-time kernel patched environment. UHD driver version using is 3.9.6 Current master clock frequency is 184.32MHz, and sampling rate is 30.72MHz. 2 RX/TX antennas are used with 16bit I/Q

[USRP-users] warning on UDP buffer size when using Python API

2017-09-22 Thread Osvaldo Alcala (Ozzie) via USRP-users
Hi, I'm running with the Python API and I keep getting the following warning (see pic below). I go ahead and change the buffer size per the command listed, but I still get the warning again with different numbers. Is this normal? Will it cause any data loss? Anyway to fix? Thanks! Oz [cid:ima

Re: [USRP-users] Phase jumps in USRP B210 with GPSDO

2017-09-22 Thread Piotr Krysik via USRP-users
W dniu 21.09.2017 o 21:06, Marcus D. Leech via USRP-users pisze: > On 09/21/2017 02:27 PM, Piotr Krysik via USRP-users wrote: >> >> -- >> Piotr Krysik >> >> >> Also take into account that I'm not comparing phase signals observed by >> two different USRPs. What I have shown is for single channel of