I am checking the IO signatures, and I am seeing that the axi_mm interface
generated in rfnoc_image_core.sv is a bit wonky. I traced it back to the
io_signature.yaml definition here:
https://github.com/EttusResearch/uhd/blob/0dede88c6535ae6ffb30b162c83dc01d59d3bfa0/host/include/uhd/rfnoc/core/io_
I am trying to add a timekeeper listener, axi_mm memory interface, and a
pps interface using rfnoc_modtool with the yml description and it doesn't
seem like it actually adds the ports to the top level when the code is
being generated.
I verified this by using the replay.yml block in an OOT and it