Re: [USRP-users] Independent use of ethernet ports on Ettus x310?

Hi Chad, To add to what Neel said, no matter the FPGA image or Ethernet type a USRP cannot be accessed from two computers at the same time. The device is claimed as the first action when a connection is made to it by a program. Regards, Derek On Fri, Nov 17, 2017 at 1:08 AM, Neel Pandeya via USR

[USRP-users] the time actually transmitted

Hi all.In rx_medata_t, there is a time_spec which displays the time when a first sample is received.Thus, we can see the timing difference between the time "actually" transmitted and the time we "command".For example, I command "issue_stream_command" to start receiving at time t0, but I noticed

Re: [USRP-users] Independent use of ethernet ports on Ettus x310?

Neel: Thanks very much for the helpful reply. MY x310 has both a SBX and a WBX installed. The working configuration I mentioned  has the WBX transmitting and the SBX receiving simultaneously. But how do I get data chunks from the SBX while the flowgraph that implements this simultaneous operation i

Re: [USRP-users] Independent use of ethernet ports on Ettus x310?

Derek: Very helpful reply; thanks much. Chad On Fri, 2017-11-17 at 12:08 +, Derek Kozel wrote: > Hi Chad, > > To add to what Neel said, no matter the FPGA image or Ethernet type a > USRP cannot be accessed from two computers at the same time. The > device is claimed as the first action when a

Re: [USRP-users] Independent use of ethernet ports on Ettus x310?

Hello Chad: By "dual 10 Gigabit Ethernet", we mean that both Port 0 and Port 1 are being used with 10 Gigabit Ethernet links simultaneously. Both links must connect to the same host computer; you cannot have one link connected to system A, and the other link connected to system B. In GNU Radio, y

Re: [USRP-users] Independent use of ethernet ports on Ettus x310?

Neel: But what does Ettus mean by "Dual 1 Gigabit Ethernet" on those links? (Not "Dual 10 Gigabit Ethernet".) See attached screen shots from the Ettus.com links I sent previously. I am currently using the UHD Source block with the SBX and a UHD Sink block with the WBX in the working flowgraph. What

[USRP-users] USRP FPGA programming with RFNoC

Hi, I'm a little bit confused about the RFNoC project. The information page (reference link ) says it is compatible with USRPs from 3rd generation on. Then, it lists E310/E312/X300/X310. However, devices such as B200 and B210 also belong to 3rd generation (reference lin

[USRP-users] Assigning each daughtercard an IP address in X310?

hat this is working well. At irregular intervals, I want to obtain large > numbers of samples from > (B:0, RX2) by calling, say, uhd_rx_cfile or the like, outside of the > flowgraph, which is still > running. I'm prevented from doing that while the flowgraph is running. Can

[USRP-users] using uhd 4.0 on e3xx

Hello, I've followed the directions as specified here : https://kb.ettus.com/Software_Development_on_the_E310_and_E312 to cross compile uhd for the e310 such that I can use RFNOC Everything looks good until I get to here. I'm new to the e310 and rfnoc so any advice on how to proceed would be appr

Re: [USRP-users] Independent use of ethernet ports on Ettus x310?

Hello Chad, You'll need a program which can receive from both channels at once. The claiming means that two processes cannot access the same USRP at the same time. The rx_multi_samples shows receiving two sample streams on the same frequency and the same rate. You'll likely need to write your own

Re: [USRP-users] USRP FPGA programming with RFNoC

On 11/17/2017 01:34 PM, André Gomes via USRP-users wrote: Hi, I'm a little bit confused about the RFNoC project. The information page (reference link ) says it is compatible with USRPs from 3rd generation on. Then, it lists E310/E312/X300/X310. However, devices suc

[USRP-users] Disabling GPS-DO on USRP N210

Hello, I'm currently using a GPS-DO on my USRP N210. However, I want to receive a 1 pps signal from an external octoclock. I'm wondering how far I have to disable the GPS-DO. As mentioned in past posts, I switch the jumper J510 to the position 1-2. But I think it's not sufficient to get the e

Re: [USRP-users] Assigning each daughtercard an IP address in X310?

egular intervals, I want to obtain large > numbers of samples from > (B:0, RX2) by calling, say, uhd_rx_cfile or the like, outside of the > flowgraph, which is still > running. I'm prevented from doing that while the flowgraph is running. Can > I do it using th

Re: [USRP-users] Disabling GPS-DO on USRP N210

You’ll have to remove the GPSDO since the PPS line is shared between the front panel and the GPS module. Sent from my iPhone > On Nov 17, 2017, at 3:31 PM, NAVES Raphael via USRP-users > wrote: > > Hello, > > I'm currently using a GPS-DO on my USRP N210. However, I want to receive a 1 >

[USRP-users] transmission at specific time t0.

Hi all.I'm still trying to know that when we command to transmit the samples at specific time t0, its actual transmitted time is exact time t0?because, in Rx, it does not receive exact time t0. there are some delays between them(about 30us depending on the master clock rate or sampling rate, tha