spam@pv01a0.vincent.iastate.edu (Begley Michael L) (10/16/90)
Hi... I recently purchased an S-100 bus system from the university real cheap. it has a Z-80 board, but I want to upgrade it to a better processor, and run a better OS than CP/M... Anyway, I'm looking for S-100 processor boards with a 6809 (or better) processor and help with bringing up a system running OS/9 or some *nix derivative... Thanks, -mike begley spam@iastate.edu
jejones@mcrware.UUCP (James Jones) (10/16/90)
In article <1990Oct15.192017.29796@news.iastate.edu> spam@iastate.edu (Begley Michael L) writes: >Anyway, I'm looking for S-100 processor boards with a 6809 (or better) >processor and help with bringing up a system running OS/9 or some *nix >derivative... I don't know whether you'll have much luck finding a 6809 board for S-100 bus. The ones I recall were 1. Logical (Systems?)--a Florida company that also made ROM burners. 2. Ackerman Digital--an Illinois outfit. They had a 6809 board, no memory mapping so that you were limited to one 64K address space, and they ate 4K of that by not bothering to decode memory-mapped I/O to their two or three on-board ports very well. 3. MicroDaSys might have had one, but my memory is very fuzzy; I don't know for sure. I don't think any of them did memory mapping. I think you'd have better luck finding a 68000 board for S-100. Cromemco (the folks with the infamous S-101 bus, the 1 being some kind of wire running across the top of the board if I remember rightly :-) made some, and Godbout might have made one. James Jones