Hi Rob,
I'm assuming you were able to work through the issue because you were on
the right track, but I wanted to make sure you got a response. The
solution is to create a .yml file containing the blocks and parameters
desired for the RFNoC image and use that as an input to
uhd_image_builder.py.
The problem seems to be that the "NumChains" input for the DUC (& likely
DDC) is not being set and thus defaulting to 1 chain per DUC. This is a
problem for the N310 that has 2 channels per radio. I noticed that the
file rfnoc_ce_default_inst_n310.v has NumChains specified as
NUM_CHANNELS_PER_RA
