Hi Saeid - The error shows that the version of UHD as installed isn't fully
compatible with the version of GR. GR 3.7.9.1 is quite old ... unless you
need that specific version of GR, I'd recommend uninstalling that GR and
installing 3.7.14.5 from source. There are install guides around for doing
Hi Jon,
If you are following this app note [0], I would recommend starting with the
release-4 image. The pre-3.15 MPM based image that has been released is
currently a "beta" release. It lacks several of the dependencies required
to build out GNU Radio. We are working on a new release and hope to
Dear all,
I have some questions regarding the DDC implementation (ddc_chain.v, usrp2):
1) Why do we need two half-band filters (one large and one small) after the
CIC? What is their purpose? Can’t we use just one half-band?
2) What is the purpose of the scale factor multiplication after hb2? Wha
I will follow your advice, but it's worth mentioning I simply did apt-get
gnuradio and should therefore have a compatible version of uhd installed
automatically as a dependency. I did not install uhd separately.
On Fri, Oct 11, 2019 at 9:27 AM Michael Dickens
wrote:
> Hi Saeid - The error shows
Greetings Nate,
Thanks for getting back to me so quickly. I will be sure to flash the OS to
release 4 and roll back my dev environment to match the instructions.
Regards,
Jon Lockhart
On Fri, Oct 11, 2019, 1:20 PM Nate Temple wrote:
> Hi Jon,
>
> If you are following this app note [0], I woul
Hi Saeid - Thanks for the followup. I totally agree that if you just "sudo
apt install gnuradio", compatible versions should be installed. Are you
using Ubuntu 16.04.6 LTS (Xenial Xerus)? If you choose to install from
source, you can follow instructions such as the GR recommended way here <
https:/
Ivan,
Thanks for sending that along. From a software perspective, what parameters
do you input to your attached code to run it? I'm trying to understand the
data rates you're trying to sustain over the NIC you have. I've been
combing through this past USRP-users thread for some additional insight:
It's Ubuntu 16.04.1, but yes, I will follow the source build instructions.
On Fri, Oct 11, 2019 at 3:11 PM Michael Dickens
wrote:
> Hi Saeid - Thanks for the followup. I totally agree that if you just "sudo
> apt install gnuradio", compatible versions should be installed. Are you
> using Ubuntu
Half-Bands are very flat in the passband, and somewhat efficient to
implement because every second tap is zero. The CIC on the other hand, is
super efficient, but has a horrible frequency response.
So, you want to use the half-bands for decimation whenever possible. You
will have fewer aliases, th
No, you can do FPGA dev on the B200 series. However, you can't do RFNoC on
the B200 series. The manual has a few comments on it:
http://files.ettus.com/manual/page_usrp_b200.html#b200_customfpga
We expose a register interface (meaning you might not also have to modify
UHD), and there's a scratch s
Is this with vanilla code, or your own custom code?
On Thu, Sep 26, 2019 at 5:49 PM Jeff S via USRP-users <
usrp-users@lists.ettus.com> wrote:
> I'm trying to take what I learned from GRCon2019 from Neel and company's
> workshop, and I'm trying to perform the uhd_image_builder_gui.py script. It
>
On 10/11/2019 04:28 PM, Sam Reiter via USRP-users wrote:
Ivan,
Thanks for sending that along. From a software perspective, what
parameters do you input to your attached code to run it? I'm trying to
understand the data rates you're trying to sustain over the NIC you
have. I've been combing th
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