How many RFNoC blocks can be added to a x310 USRP?

Question

This is a question I've been trying to get an answer for some time. Is there any limit to the number of RFNoC blocks that can be added to a x310 USRP?

Answer 1

To cite the source code you'd need to be modifying to add your own blocks:

https://github.com/EttusResearch/fpga/blob/maint/usrp3/top/x300/rfnoc_ce_auto_inst_x310.v#L1:

localparam NUM_CE = 10; // Must be no more than 10 (6 ports taken by transport and IO connected CEs)

You can't have more than ten blocks.