Hello Guys,
recently I have started looking into the RFNoC platform. I have
successfully installed RFNoC and was able to build fpga images with
default pre-built modules like fft etc. I haven't; however started with the
gain module from "Getting started tutorial" .
My system setup,
USRP x310 ---- with XG image (connected to PC using dual 10 Gig Ethernet)
uhd ------------- UHD 3.15 LTS branch
gnuradio ------ maint-3.8 branch
gr-ettus---------- maint-3.8 branch
vivado system edition (with HLS, Model Composer, DSP system generator)
----- 2018.03v
fpga images and code was submoduled as part of uhd hence they are at\
~/{UHD SRC DIR}/fpga-src/usrp3/..
all installed in a custom prefix (~/workspace/installs/stable) without
pybombs.
I have couple of questions and errors I got that I want help with
1. As of this branch UHD 3.15 LTS, it was mentioned I should use
uhd_image_builder_gui.py or uhd_image_builder.py script. So, when I used
it, I couldn't find target type X310_RFNOC_HLS_HG . Is it removed or what
up with that ?
2. Second is with respect to gr-ettus (I came to know that there are
some major changes going with this in upcoming UHD 4.0 I will come to that
in later points). So, as per tutorial we have to use rfnodmodtools which is
part of gr-ettus to create our own OOT RFNoC module. But, I faced one
error with it and I fixed that error (I am not sure if it is a correct
fix). I have raised an issue here in gr-ettus repo. please anyone let me
know if this is a issue or if I was doing something wrong. Because the is
is with respect to path of rfnocmodtools template. Here is the link for the
issue: https://github.com/EttusResearch/gr-ettus/issues/45
3. Third, as this will be my first time working with RFNoC and FPGA
(atleast with Xilinx, I have some experience from my studies). My main
interest with RFNoC is that I wanna create a channelizer, for 160MHz and
split up into 80 channels each of 2 MHz (critically sampled). and take
everything to the PC for 80x demod & 80x symbol sync. What is the latest
development in that direction? I got to know a repo called gr-theseus. Is
it maintained still ? Can I start from there or should I start from
scratch. I am looking to connect with is anyone working/worked with PFB
4. Last one, how is the structure gonna change in future with UHD 4.0 &
gr-ettus gonna, it would really helpful if someone could explain (very
confucsed with this coz i couldn't find uhd_image_builder etc.) this
workflow with new updates and what you guys recommend should start with
3.15 LTS or switch UHD 4.0 because by the I finish PFB i might have to port
to a completely new workflow. But in any case, I need gnuradio integration
I know it is a lot of questions, sorry guys. But, when I started setup with
RFNoC, I faced many questions like this, and I felt others might have these
too. These points will allow people who might need them to get their
answers in a single place.
Any help, answers, suggestions or improvements for these questions will
be really helpful and are highly welcomed !
Thanks and Regards.
Yaaseen
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