[USRP-users] Re: Why is IQ cal disabled when using external LO

2024-12-10 Thread Marcus D. Leech
On 10/12/2024 13:42, Eugene Grayver wrote: Hi, I just noticed that the calibration tables are disabled/ignored when external LO is used.  Why is that?  I understand that the automatic calibration utilities will not work (over frequency). However, we are generating those tables ourselves, and

[USRP-users] Running cron job on USRP N320

2024-12-10 Thread Ofori Boateng, Joshua [E CPE] via USRP-users
Hello folks, I am working on a project with USRP N320 and want to run a cron job to reboot the device after a specific period. I wonder if anyone has tried doing something similar? Thank you. Best, Joshua Graduate Research Assistant Department of Electrical and Computer Engineering Iowa Stat

[USRP-users] Why is IQ cal disabled when using external LO

2024-12-10 Thread Eugene Grayver
Hi, I just noticed that the calibration tables are disabled/ignored when external LO is used. Why is that? I understand that the automatic calibration utilities will not work (over frequency). However, we are generating those tables ourselves, and expect UHD to use them. Now I have to hack

[USRP-users] Re: Blocker issue with NI-2943R (=Ettus x310) PCIe connectivity

2024-12-10 Thread Marcus D. Leech
On 10/12/2024 11:44, Martin Braun wrote: BTW, if you are able to get a 10 GbE card, you can exceed the rates of the PCIe link, with almost no downsides compared to PCIe. --M I will second this.   10GiGe cards for PCs are not expensive these days, neither are the SFP+ optical transceivers.  S

[USRP-users] Re: Blocker issue with NI-2943R (=Ettus x310) PCIe connectivity

2024-12-10 Thread Martin Braun
Hi Seppo, hard to say why the USRP isn't showing up on the PCIe bus. I've only ever used the official NI PCIe extension card ( https://www.ettus.com/all-products/pcie-kit/), in principle, I don't see why your card wouldn't work, but it's not something we can help with, unfortunately. BTW, if you

[USRP-users] Re: Issue with Starting Transmitter on USRP N300 without Using Streamers

2024-12-10 Thread Martin Braun
On Fri, Dec 6, 2024 at 4:53 PM Rob Kossler via USRP-users < usrp-users@lists.ettus.com> wrote: > > > On Fri, Dec 6, 2024 at 9:44 AM Rob Kossler wrote: > >> >> You might want to look at the Ettus c++ example "rfnoc_radio_loopback". >> You could also try just running it. Note that it does not incl

[USRP-users] Re: Issue with Starting Transmitter on USRP N300 without Using Streamers

2024-12-10 Thread Martin Braun
Hey Nidhi, are you able to run the rfnoc_radio_loopback example? It skips the DmaFifo (which is not present in default bitfiles) but otherwise does the same. It documents all the common pitfalls of creating loopback apps (like calling enable_rx_timestamps(), and using back-edges). Once that work