Re: [USRP-users] RFNoC spp rate limitation

2018-03-22 Thread EJ Kreinar via USRP-users
Hi Sebastian, > Do you think that it would suffice to change the packet size at my last RFNoC block before the host? I will try out the already available packet_resizer block tomorrow. Yes, this is probably the easiest solution. But, if you're not opposed to custom HDL, an alternate option could

[USRP-users] RFNoC OFDM Example - Timeout on Chan 0

2018-03-22 Thread Jason Meyer via USRP-users
I am trying to run the following RFNoC OFDM example on an X310 device: https://github.com/EttusResearch/gr-ettus/blob/master/examples/rfnoc/rfnoc_ofdm.grc I am using the virtual source on the receiver side as an input to the OFDM Schmidl-Cox Sync block, but am getting a timeout. I saw that this i

Re: [USRP-users] USRP b210 time tagging

2018-03-22 Thread Derek Kozel via USRP-users
Yes, the data is timestamped. By default it will be times relative to when the USRP was first turned on, but the set_time_next_pps function can be used to align the internal time with an external or GPSDO based reference. http://files.ettus.com/manual/page_sync.html#sync_time There are examples f

[USRP-users] USRP b210 time tagging

2018-03-22 Thread Cho, Daniel J (332C) via USRP-users
Hello - I am using the USRP b210 but this questions can be for all USRPs. Do they provide time tagging of the data transmitted and received or is that something that I would have to create myself. Thanks, Daniel Cho ___ USRP-users mailing list USRP-u

Re: [USRP-users] RFNoC spp rate limitation

2018-03-22 Thread Sebastian Leutner via USRP-users
Hi all, when working with RFNoC at 200 MSps on the X310 using 10GbE I experience overruns when using less than 512 samples per packet (spp). A simple flow graph [RFNoC Radio] -> [RFNoC FIFO] -> [Null sink] with the spp stream arg set at the RFNoC Radio block shows the following network utilizatio

Re: [USRP-users] RFNoC Support for TwinRX

2018-03-22 Thread Derek Kozel via USRP-users
Hello Adams, Yes, the TwinRX Rev A and B work with RFNoC, but the rfnoc-devel branch may currently have some regressions. We are in the process of updating the rfnoc-devel branch with many changes from the master branch including support for the TwinRX Rev C. We will be doing regression testing of

[USRP-users] RFNoC Support for TwinRX

2018-03-22 Thread Adams, Andrew L. via USRP-users
We are currently using a TwinRX daughterboard on a X310 USRP. We have had little success using rfnoc-devel branches of UHD (software and FPGA repositories) with the TwinRX card. Using the latest rfnoc-devel code, the TwinRX card only works (i.e., we see our signal coming from the radio) about

Re: [USRP-users] Getting started with FPGA and RFNoC developement

2018-03-22 Thread Nick Foster via USRP-users
Replies inline. On Thu, Mar 22, 2018 at 9:48 AM TIMMEN Koen via USRP-users < usrp-users@lists.ettus.com> wrote: > Hello, > > > > First of all I would like to mention that I am not sure if this is the > right location to ask these type of questions. However, I tried to find > answers to my questio

Re: [USRP-users] RFNoC spp rate limitation

2018-03-22 Thread Marcus D. Leech via USRP-users
On 03/22/2018 12:41 PM, Sebastian Leutner via USRP-users wrote: Hi all, when working with RFNoC at 200 MSps on the X310 using 10GbE I experience overruns when using less than 512 samples per packet (spp). A simple flow graph [RFNoC Radio] -> [RFNoC FIFO] -> [Null sink] with the spp stream arg se

[USRP-users] Getting started with FPGA and RFNoC developement

2018-03-22 Thread TIMMEN Koen via USRP-users
Hello, First of all I would like to mention that I am not sure if this is the right location to ask these type of questions. However, I tried to find answers to my questions elsewhere but couldn't find a better suited location, so I hope I'm not at the wrong address and causing too much clutter

Re: [USRP-users] RFNoC spp rate limitation

2018-03-22 Thread Sebastian Leutner via USRP-users
Hi all, when working with RFNoC at 200 MSps on the X310 using 10GbE I experience overruns when using less than 512 samples per packet (spp). A simple flow graph [RFNoC Radio] -> [RFNoC FIFO] -> [Null sink] with the spp stream arg set at the RFNoC Radio block shows the following network utilizatio

[USRP-users] Command inside streaming repeat

2018-03-22 Thread Андрей 1 via USRP-users
Пересылаемое сообщение От: Андрей 1 Дата: 22.03.2018, 10:03 Кому: Usrp Users Тема: RE: RE: Command inside streaming After getting UHD_ERROR_IO, I stop receiving data and have to reopening then device (uhd_rx_streamer_free,uhd_usrp_free,uhd_usrp_make,uhd_rx_streamer_make,uhd_usr

Re: [USRP-users] RFNoC spp rate limitation

2018-03-22 Thread Marcus D. Leech via USRP-users
On 03/22/2018 09:45 AM, Sebastian Leutner via USRP-users wrote: Hi all, when working with RFNoC at 200 MSps on the X310 using 10GbE I experience overruns when using less than 512 samples per packet (spp). A simple flow graph [RFNoC Radio] -> [RFNoC FIFO] -> [Null sink] with the spp stream arg

[USRP-users] RFNoC spp rate limitation

2018-03-22 Thread Sebastian Leutner via USRP-users
Hi all, when working with RFNoC at 200 MSps on the X310 using 10GbE I experience overruns when using less than 512 samples per packet (spp). A simple flow graph [RFNoC Radio] -> [RFNoC FIFO] -> [Null sink] with the spp stream arg set at the RFNoC Radio block shows the following network utiliza

Re: [USRP-users] Spikes at beginning and end of transmission

2018-03-22 Thread Brais Ares via USRP-users
Thank you Marcus once again, crystal clear now. 2018-03-21 16:17 GMT+01:00 Marcus D. Leech via USRP-users < usrp-users@lists.ettus.com>: > On 03/21/2018 03:51 AM, Brais Ares via USRP-users wrote: > > ​Hi, > > I can see a similar spike, a few microseconds long, at the beggining of > each transmiss

Re: [USRP-users] Duplicate ip addr issue X310

2018-03-22 Thread Jonathan Liang via USRP-users
Dear Hanqing, I got the same error as what you described in your email. Did you solve that problem by yourself? If yes, would you mind telling me how to solve that? Many thanks in advanced. Regards, Jonathan ___ USRP-users mailing list USRP-users@lis

Re: [USRP-users] Command inside streaming

2018-03-22 Thread Андрей 1 via USRP-users
After getting UHD_ERROR_IO, I stop receiving data and have to reopening then device (uhd_rx_streamer_free,uhd_usrp_free,uhd_usrp_make,uhd_rx_streamer_make,uhd_usrp_get_rx_stream and other). My questionIf I can call a function uhd_usrp_get_time_now inside streaming why occurs error that discribe ea