Hello,
I’ve seen on X310 that the supply power of GPSDO is controlled by FPGA pin.
Maybe there is something similar on E320.
BTW. on X310 that pin isn’t used, at least not for anything good. It changes
its state for a moment every time someone loads FPGA bitstream over PCIe
interface. Taking i
Johannes Demel wrote:
> Hi all,
>
> thanks for your suggestions.
>
> A few more details:
>
> * Ryzen 5900X CPU
> * UHD reports USB 3. With USB2 it would probably fail above \~8MSps.
> * Ubuntu 22.04 with GCC 11.2, Python3.10
>
> I tried 2TX streams alone at 30.72MSps. works. check.
> I tried 2RX s
Hi all,
thanks for your suggestions.
A few more details:
- Ryzen 5900X CPU
- UHD reports USB 3. With USB2 it would probably fail above ~8MSps.
- Ubuntu 22.04 with GCC 11.2, Python3.10
I tried 2TX streams alone at 30.72MSps. works. check.
I tried 2RX streams alone at 30.72MSps. works. check.
I
You mentioned that your error happens when running from gnuradio. What
happens if you remove gnuradio from the equation and run "uhd_usrp_probe"?
Do you still get the error?
Rob
On Wed, Sep 7, 2022 at 10:31 AM Piotr Krysik wrote:
> Hi Adrián,
>
> This error mean that the block didn't respond to
mamuk...@gmail.com wrote:
> Hi Piotr,
>
> \
> In this thread:
> https://lists.ettus.com/empathy/thread/JWF3VHGY3YUT62B6CDCPZ5R5PF7AUV7D?hash=MVUXQUQBPY7DS7PEZMWMYFVPFZN26YDF#MVUXQUQBPY7DS7PEZMWMYFVPFZN26YDF\
> Martin said that it could be possible to encrypt a netlist with RFNoC, so
> that’s why
I have found after much trial and error that adding the arguments
“recv_frame_size=8000,num_recv_frames=512” to the device string allows for me
to sample at the full 56 Msps rate on the B series devices without any overruns
(tested using UHD 4.2.0.1 on both Debian 11 and Arch Linux on various
c
Hi Piotr,
\
In this thread:
https://lists.ettus.com/empathy/thread/JWF3VHGY3YUT62B6CDCPZ5R5PF7AUV7D?hash=MVUXQUQBPY7DS7PEZMWMYFVPFZN26YDF#MVUXQUQBPY7DS7PEZMWMYFVPFZN26YDF\
Martin said that it could be possible to encrypt a netlist with RFNoC, so
that’s why I wonder how I could do that using the
per...@o2.pl wrote:
> per...@o2.pl wrote:
>
> > Hi,
> >
> > I can only confirm that I see the same result: 24MHz is working, starting
> > from about 24.5MHz there’s a lot of underruns.
> >
> > My CPU: AMD Ryzen Threadripper 2990WX, 128GB RAM, motherboard Asus X399.
>
> … and the system is Ubuntu
Hello,
I would guess this question is independent of RFNoC.
Anyway even if you encrypt the bitstream you are obligated by LGPL-3 to give
user the source.
Unless you paid National dudes, who hold the copy-left, for the de-GPLed
version…
Best Regards,\
Piotr Krysik
_
per...@o2.pl wrote:
> Hi,
>
> I can only confirm that I see the same result: 24MHz is working, starting
> from about 24.5MHz there’s a lot of underruns.
>
> My CPU: AMD Ryzen Threadripper 2990WX, 128GB RAM, motherboard Asus X399.
… and the system is Ubuntu 20.04 with UHD 4.2.0.1.
___
This is very helpful, thanks for the response Piotr! I was starting to
speculate that maybe there is some cross-talk in the clocking front-end switch
(U55), enough to quasi-periodically perturb the PLL. I don't believe UHD turns
off the GPSDO's TCXO when the external clock is selected, so they'
Hi,
I can only confirm that I see the same result: 24MHz is working, starting from
about 24.5MHz there’s a lot of underruns.
My CPU: AMD Ryzen Threadripper 2990WX, 128GB RAM, motherboard Asus X399.
Best Regards,\
Piotr Krysik
___
USRP-users mailing li
Hi David,
I've seen something similar on USRP B210 when I tried to use external
10MHz reference clock and there was GPSDO inside of the device. There
was longer time between phase jumps:
https://lists.ettus.com/empathy/attachment/277949
Look at the "Phase jumps in USRP B210 with GPSDO" topic
Hi Adrián,
This error mean that the block didn't respond to a control message
during initialization.
I've seen such errors when element of RFNoC graphs wasn't working correctly.
Those situations were when:
1. replay block wasn't working correctly due to wrong clock for DDR
SDRAM controller mo
Sounds like there’s been a bit of a performance slip in the new kernel.
Try adding the num_recv_frames=256 and num_send_frames=256
To yuur device args.
Sent from my iPhone
> On Sep 7, 2022, at 5:46 AM, Johannes Demel wrote:
>
> Hi all,
>
> I try to use a B210 with a computer that runs Ub
Hi Everyone,
Is there a way to regenerate the C++ interface (the file
./lib/myblock_block_ctrl_impl.cpp) after the initial template is created by
rfnocmodtool?
I can't seem to find any files which define the registers, addresses, etc.
In my case, I am using Simulink to generate IP cores which I
Hi all,
I try to use a B210 with a computer that runs Ubuntu 22.04 now. However,
at higher sampling rates, above 24MSps with 2TX and 2RX streams, I get a
lot of overruns and underruns. I need 30.72MSps eventually and got that
working on all other machines.
This happens on Ubuntu 22.04 with UHD
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