Using the latest 'rfnoc-devel' (eec24d7b) with my N310, I get the following
error when running the example program 'benchmark_rate'. The error message
indicates no PPS detected whenever the channel count is greater than one.
Note that this is not a new error (it was present prior to me updating
to
Hi,
I'm new to RFNOC development. I have an X310 with an SBX on slot A, and I
want to do a loopback from antenna port RX2 to TX/RX using RFNOC blocks. I
tried connecting 0/Radio_0 ==> 0/DDC_0 ==> 0/DUC_0 ==> 0/Radio_0 by the
following commands:
rx_graph->connect(radio_ctrl->get_block_id(), ddc_ct
I've attached the cpp files that I have written for the USRP. Some of the
other functions defined in the hpp file are implemented in other files that
I have not included as they are not relevant.
I can't necessarily speak for what Windows may or may not be doing because
"Windows", but for the hous
On 07/09/2018 02:00 PM, Jacob Knoles wrote:
When using GNURadio Companion, they only appear when closing the
flowgraph. On my application, which uses the same gnuradio code
directly in c++ multiple times ( creates a usrp, then a flowgraph that
uses it, stops the flowgraph, then starts another a
Hello,
I have been using the cmd_out control source bus of the noc_shell in a custom
rfnoc block to generate timestamped stream_cmds for a downstream radio block. I
recently pulled in the latest changes from uhd rfnoc-devel
(eec24d7b0442616fdbe9adf6b426959677e67f92) and fpga rfnoc-devel
(1b406
When using GNURadio Companion, they only appear when closing the flowgraph.
On my application, which uses the same gnuradio code directly in c++
multiple times ( creates a usrp, then a flowgraph that uses it, stops the
flowgraph, then starts another after a few seconds) I see the errors at the
end
On 07/09/2018 01:47 PM, Jacob Knoles wrote:
It seems to be sample-rate agnostic. I ran a few tests using GNURadio
companion at 50M, 1M and 100K sample rates, they all had the same
errors when stopping the flowgraph. For my application I need to run
it at 50M.
After a few runs here I now have
It seems to be sample-rate agnostic. I ran a few tests using GNURadio
companion at 50M, 1M and 100K sample rates, they all had the same errors
when stopping the flowgraph. For my application I need to run it at 50M.
After a few runs here I now have a new error too:
RuntimeError: RuntimeError: BIST
Hi all,
we have recently been working more on the RFNoC side of things, and
there's some updates I want to bring to you.
The first step we did to a more stable version of RFNoC is merging all
of the work on rfnoc-devel back into master. This will make it a lot
easier to keep features in sync betw
On 07/09/2018 12:07 PM, Jacob Knoles via USRP-users wrote:
I have a simple TX streamer that uses GNURadio in C++ which loads data
from a file into memory followed by a separate flowgraph of vector
source to usrp sink that repeats until closed.
The problem I am having is that in my code, the lo
I have a simple TX streamer that uses GNURadio in C++ which loads data from
a file into memory followed by a separate flowgraph of vector source to
usrp sink that repeats until closed.
The problem I am having is that in my code, the log just spits out:
"[ERROR] [STREAMER] Error parsing async mess
Hi Tarik,
I regularly stream 800 MS/s to my desktop from a pair of X310s and display
the data using GNU Radio's Frequency Sink blocks. I rarely try saving data
at a rate above 100 MS/s. Since DSP tasks can vary so much it is
essentially impossible for us to say what your maximum achievable sample
Hi Derek,
Thank you for the advice and comments. So UHD requires connection of Dual 10GBe
interface to
single PC.
I have experience with FPGA and debugging. However, I did not explore RFNoC
FPGA design (I did read few papers about RFNoC).
If it really complicated I would like to avoid imple
Hello Tarik,
Just stepping in to respond that UHD does not support splitting the 10 GigE
interfaces to two computers.
The X310 supports RFNoC which you could use to create an energy detection
block which only streams samples back to the computer when your criteria
are met. However it is likely si
Dear All,
I am facing problem with audio sink block on Gnuradio. When I run
application, there is a clear sound for about 8 to 10 minutes. After that
sound becomes choppy with knocking sound. I tried different sample rate
including 16kHz, 24kHz, 44.1kHz, 48kHz, and 96kHz with appropreate
resampling
Hi All,
I am giving up hope of sampling signals of full BW of two UBX-160 cards, and
storing those streams in the PC.
Based on my calculations (one of the previous posts) in order to be able to do
that I would need to write to
memory with the speed of 1.6GBps.
However, now I am interested in sa
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