I get this error when trying to open 2 tx steams and 3 rx streams, where some
usrps are both rx and tx: "RuntimeError: fifo ctrl timed out looking for acks"
I found a mention of the error on this page:
http://www.ni.com/product-documentation/53455/en/
Which gives a workaround: Open an Rx and
> From: Richard Lamont
> Date: Mon, 8 Jan 2018 20:09:23 +
>
> I'm new to this, so my apologies if I'm being thick. I have spent
> hours
> trying to resolve this.
>
> The FM pre-emphasis and de-emphasis blocks do not appear to implement
> the amplitude-frequency response I woul
On 08/01/18 21:59, Müller, Marcus (CEL) wrote:
> please don't reply to existing emails on the Mailing List to start a
> new discussion thread
Sorry about that.
> Anyway: If I remember correctly, they work pretty OK – but it's hard to
> mimic analog filters in digital domain, so OK might be diffe
Hi Nick,
Derek's absolutely right, the FPGA interface was pretty stable for a
long time! By the way, what are you planning to do with your USRP? What
daughterboard do you have in there?
There's one minimal caveat regarding using the latest possible UHD:
somewhere after 3.8.0, the ability to use
Hi Nick,
Marcus is correct, except for including the maximum UHD version you can
use. The N200's FPGA compatibility number was increased in this commit on
April 9, 2015. You need any version of UHD before that date. UHD 3.8.2 is
the last release that did not include it.
https://github.com/EttusRes
There's no workaround, but a single solution:
You need to use the same UHD version as they do.
So, uninstall GNU Radio and UHD, build UHD 3.6.2 (old) from source,
build GNU Radio from source (which will then use that ld version of
UHD). Then, things should work.
Other than that: consider
Hi,
I've borrowed some N2xx series Ettus devices and have been explicitly asked
to not update the firmware/FPGA images on the devices. When I try to use
the devices from GR 3.7.11.1 I get the FPGA incompatibility error and the
commands to update the devices.
*Please update the firmware and FPGA i
I'm new to this, so my apologies if I'm being thick. I have spent hours
trying to resolve this.
The FM pre-emphasis and de-emphasis blocks do not appear to implement
the amplitude-frequency response I would expect - equivalent to a simple
analog RC filter.
Is this a known bug? (version 3.7.9)
TI
Thanks, Andy. I had been doing that but found that while Gnuradio could
play back the resulting WAV file, my target program couldn't. I thought
the problem was the data type, but I think instead it was scaling.
When I did a "mult const" by 8192 on the data, I got results that worked
just fin
