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(found, in-progress) 68030 ISA card design [message #10078]

Fri, 12 August 2022 15:20

mikesmith
Messages: 80
Registered: March 2018

Member

This looks interesting, though I wasn't able to find much more about it.

Passive ISA backplanes are pretty easy to come by, as are interesting ISA expansion cards...

https://github.com/robfinch/ISA68030

[Updated on: Fri, 12 August 2022 21:35]

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Re: (found, in-progress) 68030 ISA card design [message #10079 is a reply to message #10078]

Fri, 12 August 2022 18:12

plasmo
Messages: 916
Registered: March 2017
Location: New Mexico, USA

Senior Member

Link?

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Re: (found, in-progress) 68030 ISA card design [message #10081 is a reply to message #10079]

Fri, 12 August 2022 21:35

mikesmith
Messages: 80
Registered: March 2018

Member

Argh! (edited the original)

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Re: (found, in-progress) 68030 ISA card design [message #10090 is a reply to message #10081]

Sun, 14 August 2022 22:15

mikesmith
Messages: 80
Registered: March 2018

Member

Another '030 to ISA interface on this very old design from Ingo Cyliax: http://archive.retro.co.za/mirrors/68000/ftp.cs.indiana.edu/ pub/goo/mc68030/Schem/

I'd read about this (published in Circuit Cellar in '94 or so) but it took a while to stumble over it.

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Re: (found, in-progress) 68030 ISA card design [message #10094 is a reply to message #10090]

Mon, 15 August 2022 13:54

mikesmith
Messages: 80
Registered: March 2018

Member

Another (simpler? Wink

option for ISA connectivity; Till (of MiST fame) built this ISA adapter for the Atari MegaST:

http://www.harbaum.org/till/atari/index.html

Timing would need tweaking for a faster system clock, but the GAL looks deceptively simple...

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