18 Jun
2012
18 Jun
'12
9:05 p.m.
From: "Chris Tofu" <rampaginggreenhulk at yahoo.com>
Sent: Monday, June 18, 2012 10:07 PM
To: "General Discussion: On-Topic and Off-Topic Posts"
<cctalk at classiccmp.org>
Subject: Re: Interested in learning 68000 hard/soft
On 06/18/2012 01:17 PM, Alexandre Souza - Listas
wrote:
Just the 68000 is fairly straight-forward in hardware design.
You need EPROM, RAM and a serial interface, and it would work.
There is one thing to consider: will you use 6800-style peripherals,
or 68000-style peripherals? 6821/6850 vs. 68230/68681 (IIRC).
Will you use VPA* or not. DTACK* is the only piece to work on.
Or make all peripherals fast enough so that you do not need DTACK*
I have built (long ago) a 68000 SBC for my StarShip.
I will search and mention the 2 books that help me get it done.
One of them has a complete monitor (source) code listing!
- Henk, PA8PDP
Dear friends, Can anyone recommend a
nice design for a 68000
SBC for learning?
I'm interested in something simple, to learn more about 68000 hardware
You could just opt to poke around inside an Atari ST or early Mac. I had
a stack of 68000 books, most donated or thrown out.
Here's a good question. What's the ideal text for studying 68000 h/w and
s/w. Nothing I owned would I consider ideal. Dave's page looks decent, but
it would be great if there was a text that describe a rudimentary 68k
system
OTOH Alex, you could opt to build one of the Radio Electronics featured
68k systems. One was explained in detail, but I think the originator wants
big bucks for the firmware and whatnot. There was also a mention of a
project in the later 80s, mostly in Europe, where a group designed a
system from scratch. It would be nice to get my hooks on those details.
I've been wanting to build a vanilla box 68k system for a long time
myself.