Den Tue, 17 Apr 2018 06:08:54 +0000 skrev "Baltissen, GJPAA (Ruud)" <ruud.baltissen@apg.nl>: > Hallo Mia, > > > > Maybe it's time for me to actually go ahead and make a B/700 > > motherboard replica? That way all this could be integrated on the > > same PCB. :) > > I have some 512 KB SMD SRAM ICs laying around. And I was thinking if > they could be used here in one or another way. The problem: the > interface between the 8088 card and the main board only supports > multiplexed address lines. > > Creating a complete new board could be an answer. Something for a > rainy day, I think. And I would start with one for the 610 for two > reasons: > - it needs modifications to be able to run the 8088 card > - I have three 610s and only one 720 I don't have any B series at all, and also no older PETs broken beyond repair, so form factor won't matter that much for me. A nice goal though would be to make all active parts fit within an area that's small enough to fit all different relevant cases, and then just trim the shape and move the connectors to fit different cases. I know it's feature creep which might prevent anything to be made at all, but as most of the hardware is similar to many Commodore 8-bit machines, it might aswell include some features to reconfigure memory map e.t.c. so be compatible with different 8-bit machines. That's really something for a rainy day. I actually haven't really studied how the 8088 bus cycles look like. -- (\_/) Copy the bunny to your mails to help (O.o) him achieve world domination. (> <) Come join the dark side. /_|_\ We have cookies.Received on 2018-04-19 23:02:25
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