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- Date: Wednesday, 10 June 1987 15:45-MDT
- From: Dick Mead
- To: Keith Petersen, W8SDZ
- Re: ZEDUX...
-
- Just chatted with one of the folks at Zedux. The BBS is expected to be
- up by this weekend. He is still preparing docs for callers, the usual
- housekeeping stuff. The BBS will use the Z280 in an old Cromemco
- S-100 Z80 system. The Z280 is a "co-processor" not too unlike the way
- the various ad-on clock cards do, with the Z280 plugging into the Z80
- socket, and the Z80 plugging back into the Zedux card. All parts are
- soldered in, no sockets. The design will accept 1 megabit Drams when
- available, however. Cost was a factor. He says they did talk to
- Echelon, but the software provided is their own, no plans to work
- with Echelon. The Z280 will have a 20mHz clock (10 mHz system clock)
- and talks to the Z80 via an 8 bit port, the Z80 being an I/O
- controller in this application. He did talk to Ampro, too, but Ampro
- will supposedly come out with their own single board Z280 card, and
- Zedux says they will be doing likewise. I am having some literature
- mailed to see what else he may have in print. No sources for the
- system software are offered, not unlike CP/M CCP/BDOS. It uses host
- BIOS...Multiple programs see 64k, minus 512 bytes for system vectors
- (page 0, Bdos/bios).
-
- That's about all I got...If you call the service, the Zedux folks will
- apparently call back...
-
- Dick