Hi, I can send in NDA form, this way cannot publish here.
Custom board is SRAM based, LCD IPCORE fail an odd way. Ethernet added to inspect, core failed too on combinatorial terms. This scared me a lot about possible pattern sensitivity or software degrade.
Test (2018) was to add T80 core and see if LCD work. Some core got imported from Xilinx part or GAL where they run fine.
Suspended development for a long while....
Seen version 2020, last try was on Lite-10 board, LCD must be wired up to. After no success on I am porting to Xilinx Spartan-6 board to see what happen.
Max10 family appeared as best fit and secure way but Altera was no more Altera.