> My little Dream is "Cruis'n Exotica" in a playable state and Link supported for the > entire Cruis'n Games > > a happy new Year to ALL :-)
2020 has finally come and I have to keep updating info. Cruis'n Exotica (as well as The Grid) uses a UART on its IOASIC chip for linking so it may not be so difficult to implement (requires splitting two ports to daisy chain MAME instances).
The V-Unit's linking feature is difficult to explain having 16 lines connecting both pcbs; eight RS485 bidirectional lines converted from/to logic and eight GPIB I/O ports. My explanation for V Unit linking is far from final and would plan to make a different thread explain its linking hardware.