Re: [USRP-users] How to use multiple PCs with one USRP X310

2017-07-24 Thread L TP via USRP-users
Hi Neel, I'm using RFNoC with X310 and I'd like to use multiple PCs to get data from CE blocks via Ethernet (e.g. PC1 get/set data for CE1 and CE2, PC2 get/set data for CE3 and CE4...). Could you help me, please? Best regards, LTP On Tue, Jul 25, 2017 at 10:47 AM, Neel Pandeya wrote: > Hello L

Re: [USRP-users] How to use multiple PCs with one USRP X310

2017-07-24 Thread Neel Pandeya via USRP-users
Hello LTP: What exactly are you trying to do? Are you trying to connect multiple host computers to a single X310? Do you want to do this over Ethernet, PCIe, or both? Do you want to operate the X310 simultaneously from multiple host computers, or stream data to/from multiple host computers simulta

[USRP-users] How to use multiple PCs with one USRP X310

2017-07-24 Thread L TP via USRP-users
Hi lists, I've found that NC-10 USRP ( http://novatorsolutions.se/wp-content/uploads/2017/05/Channelizer-NC-10-USRP-multiple-platform-with-capabilities-for-direction-find-of-up-to-128-sources-and-beamforming.pdf) allow multiple PCs connect to it to get data via PCIe or SFP+ interfaces. Could you

[USRP-users] signal level oscilation at the beginning of burst

2017-07-24 Thread Jie Song via USRP-users
Hi, I am modifying the "txrx_loopback_to_file" example on B210 to make the TX signal burst. The TX and RX gains are configured manually at fixed value, but the received signal level has some oscilation the at the beginning of each burst. Could anybody explain why this happens please? The fig

Re: [USRP-users] timout issue on RFNoC output

2017-07-24 Thread Jason Matusiak via USRP-users
What I did was instead of creating an enable flag, I used the PKT_SIZE value I write when I execute a flowgraph to be my enable: assign enabled = (PKT_SIZE > 0) ? 1'b1 : 1'b0; assign o_tvalid = enabled; That should work, right? If not, how do I know that initialization is done? I didn't write

Re: [USRP-users] timout issue on RFNoC output

2017-07-24 Thread Jonathon Pendlum via USRP-users
In the first screenshot you captured your block sending out a command response packet. That is normal. In the second screenshot, I couldn't see the full value of the header / first word, so I cannot say if it had any issues. Did you add an explicit enable for your block that turns it on after ini

Re: [USRP-users] timout issue on RFNoC output

2017-07-24 Thread Jason Matusiak via USRP-users
One last piece of oddball info I've discovered. RFNoC:dataGenerator -> RFNoC:FIFO -> throttle -> QT GUI Time Sink 1 - If I program the X310 and run it, I get timeouts streaming immediately and nothing shows up on the timesink. If I then stop it and run it again, I get some data through, and t

Re: [USRP-users] Temperature range for B200mini-i

2017-07-24 Thread Robin Coxe via USRP-users
Hi Roy. The hottest components on the B200mini-i are the ADI RF Integrated Transceiver (AD9364), the Xilinx Spartan 6 FPGA (XC6SLX75-3CSG484I), and the Cypress FX3 USB chip (CYUSB3014-BZXI). Consult the datasheets for the max. recommended junction temperature of these devices. -Robin On Mon,

Re: [USRP-users] 答复: frequency shift of B210

2017-07-24 Thread Marco Casaroli via USRP-users
What about measuring with kalibrate-uhd? https://github.com/cryptik/kalibrate-uhd On Mon, 24 Jul 2017 at 13:11 Marcus D. Leech via USRP-users < usrp-users@lists.ettus.com> wrote: > The best method for measuring a fundamental parameter like frequency drift > would be to use a signal source of k

Re: [USRP-users] 答复: frequency shift of B210

2017-07-24 Thread Marcus D. Leech via USRP-users
The best method for measuring a fundamental parameter like frequency drift would be to use a signal source of known (and much-superior) stability, and use something like uhd_fft with the B210 to observe drift over time (use the peak-hold feature in the FFT display). The problem with using the end

[USRP-users] Temperature range for B200mini-i

2017-07-24 Thread רועי via USRP-users
Hi all, I read that the stated temperature range for the B200mini-i is 0-45degC. In my application, the required temperature range is -20-60degC. However, I cannot afford the use of enclosure (due to weight limitations), therefore I need to come up with my own cooling solution. Can you please

Re: [USRP-users] 答复: frequency shift of B210

2017-07-24 Thread Marcus Müller via USRP-users
Dear John, at this point my recommendation is: Describe your measurement setup in more detail, and verify it's useful for measuring the clock quality of the B210, and not the of your CC11xx system. In fact, from what you've described, I can't really say I understand how this measures the clock of

[USRP-users] Trouble using CentOS6.5 to communicate with x310 and Twin Rx

2017-07-24 Thread Mark Koenig via USRP-users
I am currently having a lot of problems communicating with an x310 containing a twin RX. I believe it stems from the fact that centos 6.5 comes loaded with python 2.6, while the UHD and GNU radio version required needs python 2.7 I have loaded 2.7, and tried running pybombs but without much su

Re: [USRP-users] 答复: frequency shift of B210

2017-07-24 Thread john liu via USRP-users
HI,all, Do you have any suggestions about this? thank you. best regards John On Mon, Jul 24, 2017 at 9:15 AM, 戚科峰(研三 福州) wrote: > Hi,Marcus, > > > > we use The B210 as a basestation and cc1120 as the tranceiver of UE. > > The B210 uses the Frequency offset estimation algorithm to estimate the >