Interesting 68k hardware project

[Iggy]

http://hackaday.com/2014/02/20/hackaday-68k-a-new-hackaday-project/

we are not the only "crazies" :-)

Funny you should point to that as I'm working on something similar with a V9958 or V9990 VDP.

[Iggy]

I had to google V9958 because never heard of it. And what is the goal of your project? Just doing it for fun or something usable?

Yes, I exchanged a few messages with the designer of the KIWI (who lives in Germany) and asked if it was OK to use parts of his design, but I wanted to move from the 68008 he used to a 68HC000.
I just want something to run Microware's OS-9 operating system that I can add a GUI to.

[Iggy]

You know, the magazine, "Radio and Electronics" had a 68K project in the early 1990's spread over several issues that built a fairly impressive (but lacking cool AV) system with its own OS.  The part were standard for, the time, and inexpensive.  I'm afraid I sold all my old magazine copies on jBay, leaving me a millionaire.

Right now, much of my work is cribbed from the Kiwi computer.

[Iggy]

Found it; it was called the PT-68K by Peter Stark, in October 1987 of Radio-Electronics.  It ran SK*DOS, was programmed in Basic and cost about $470.

Ha, Ha, Ha!
Um, that is what 68K based OS-9 computer systems were based on at Delmar Company - PT68K2 and PT68K5 computer boards assembled by Peripheral Technologies of Marietta Georgia.
We wrote the VGA video drivers for that system and had a GUI ported to it.

You don't want to try to build one, but if you're serious I can still get a bare board.

It has ISA XT expansion slots.