[USRP-users] Re: 5 x N310 Network Setup

2021-11-22 Thread Marcus D. Leech
On 2021-11-22 02:18, Richard Bell wrote: Hey Marcus, I would like to be able to use all four channels of each N310 if desired. In that case it would take 2 SFP+ per N310 as I understand it. If I only use 1 channel I would require 1 SFP+ port, I understand your point. Richard Ah.  I misunder

[USRP-users] Re: 5 x N310 Network Setup

2021-11-22 Thread Rob Kossler
I forgot to mention, your 1G networking looks correct to me. But, I wanted to point out that it is optional. In my solution, I only have the SFP+ connections. The N3xx can use that connection for the management ports. rob On Mon, Nov 22, 2021 at 10:03 AM Rob Kossler wrote: > Hi Richard, > Altho

[USRP-users] Re: 5 x N310 Network Setup

2021-11-22 Thread Rob Kossler
Hi Richard, Although you may be able to make it work with a fast switch, it seems it would be cheaper to just add the 10 SFP+ ports. I am presently running an 8 SFP+ port solution using two Intel X710-DA4 cards. I believe I got these for about $300 each. Rob On Mon, Nov 22, 2021 at 2:19 AM Richa

[USRP-users] Re: Trouble with TwinRX frequency tuning

2021-11-22 Thread Marcus D. Leech
On 2021-11-22 03:23, Emanuele Tolomei wrote: Sorry, here is the attached snippet. Emanuele Tolomei - Messaggio originale - Da: "Emanuele Tolomei" A: "usrp-users" Cc: "Luigi Venuso" , "gianluca.bafanelli" Inviato: Lunedì, 22 novembre 2021 9:21:45 Oggetto: Trouble with TwinRX frequenc

[USRP-users] Re: rfnoc_graph->synchronize_devices()

2021-11-22 Thread Rob Kossler
Perfect. Thanks for that explanation! On Mon, Nov 22, 2021 at 7:15 AM Martin Braun wrote: > ...sorry, fat-fingered Gmail. I was saying, I had to check the code myself > carefully to see why. > In the rfnoc_graph constructor, we attempt to synchronize devices, so > that's the relevant call. > >

[USRP-users] Re: X310 USRP Dual TwinRX LEDs not turning on properly

2021-11-22 Thread Martin Braun
Hi Gabriel, we have a fix on the way for this. Many thanks again for reporting this. Keep your eyes on master branch. --M On Fri, Oct 8, 2021 at 8:41 AM Gabriel Lim wrote: > Am re-posting my issue that I raised on the github here. > > Issue Description > > X310 with two TwinRX daughterboards,

[USRP-users] Re: rfnoc_graph->synchronize_devices()

2021-11-22 Thread Martin Braun
...sorry, fat-fingered Gmail. I was saying, I had to check the code myself carefully to see why. In the rfnoc_graph constructor, we attempt to synchronize devices, so that's the relevant call. There's a bit of a catch here: If you are initializing the devices with internal ref and PPS, and then la

[USRP-users] Re: rfnoc_graph->synchronize_devices()

2021-11-22 Thread Martin Braun
Hey Rob, thanks for asking -- this function is definitely under-documented. The short answer is: This function should be called for synchronous operations, but only on X3x0 will it make any difference if you don't call it. What does it do? This function provides additional synchronization on top

[USRP-users] Re: Trouble with TwinRX frequency tuning

2021-11-22 Thread Emanuele Tolomei
Sorry, here is the attached snippet. Emanuele Tolomei - Messaggio originale - Da: "Emanuele Tolomei" A: "usrp-users" Cc: "Luigi Venuso" , "gianluca.bafanelli" Inviato: Lunedì, 22 novembre 2021 9:21:45 Oggetto: Trouble with TwinRX frequency tuning Hello, I have an X300 with two TwinR

[USRP-users] Trouble with TwinRX frequency tuning

2021-11-22 Thread Emanuele Tolomei
Hello, I have an X300 with two TwinRX daughterboards, and I'm using UHD 3.13.1. I need channels synchronization for DOA calculation, so the channels share the same LO provided by channel 0. The code for the LO sharing is the following: m_MultiUsrp->set_time_unknown_pps(uhd::time_spec_t()); std: