Need more CPU power, your #rc2014 mini-cray not pulling its weight, jealous of people with multiple CPU cores. All that can be in the past. The new ECP180 allows you to put up to 8 Z180 processors to work at once on your system (16 with a small PCB mod). Each unit as a shared memory interface and 512K of local SRAM as well as local serial and SPI/SD interfaces via the CSIO in case you want to build a classic MP/M & CP/M multiuser box S100 style
Managed to route the #rcbus Zilog Super8 card today and the 80C196KB CPU card. Some compromises needed on the 801C96 in particular to get all the I/O on the card. Both a bit bigger than standard #rc2014 size but who cares. In fact it may even be helpful as some of the connectors are quite tall (PS/2 especially).
The super8 also hopefully has 8bit DMA driven digital audio because one of the 8bit ports can be driven via DMA and an external ack, and there is a timer output pin
#rc2014#rcbus TFT interface to use the cheap mcufriend arduino panels.
The Z180 coprocessor will need a respin. Interrupts don't work and I got the data lines backwards on one side of the dual port ram. It does sort of work if you upload bitreversed code to it 8)
I've uploaded the #rcbus#rc2014#retrocomputing 2S1P card to Hackaday. Fixes aren't yet tested as an actual new board. It gives you two 16x50 ports at 0x2F8 and 0x3F8, printer at 0x378 or 0x278. People may recognize the addresses and that's to go with the 80C188 card. It's also useful on Z180 as well because it won't clash with the C0-FF internal I/O and 0x78 is free (it's the banking on the Z80 board but you can move it to other addresses like 3E8/2E8/368 for that)
Everyone who remembers the good old days of SCSI will no doubt find it excruciatingly funny that testing my #rcbus#rc2014 SCSI controller is delayed because I don't have the right cable to hand