Hello everyone,

I'm trying to implement the Fosphor example on an Ettus E312, but I've come
across some things that are unclear to me. I'm just starting to develop
with RFNoC, and I've read the manual, cross compiled everything for the
Ettus, etc.

As I understand (and it was mentioned in the mailing list a time ago), this
[1] guide is not up to date, as the "uhd_image_builder_gui.py" is no longer
available for UHD 4.0. I'm now going through [2], and I've two main
questions:

I. When I'm trying to make my own YAML file, I'm not sure if every block
needs to be connected to the rfnoc_chdr clock. What would be the way to
know for sure? I've been looking the YAML block descriptions but I couldn't
figure what exactly this "...clocks:  - name: rfnoc_chdr freq: "[]"  -
name: rfnoc_ctrl   freq: "[]"  - name: ce   freq: "[]"... "  means.

II. Lastly, I couldn't find the "rfnoc_fosphor_network_host/usrp.grc"
examples on this version. Is there any new place where I can find them or
should I create my own .grc? I'm trying to work with examples for now to
use as a reference in the early stages of my development.


[1].
https://kb.ettus.com/Software_Development_on_the_E3xx_USRP_-_Building_RFNoC_UHD_/_GNU_Radio_/_gr-ettus_from_Source
[2]. https://kb.ettus.com/Getting_Started_with_RFNoC_in_UHD_4.0



Thank you very much for your time.
Regards,
Lautaro.
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