23 Jun
2012
23 Jun
'12
2:34 p.m.
-----Original Message-----
From: cctalk-bounces at classiccmp.org [mailto:cctalk-bounces at classiccmp.org]
On Behalf Of Al Kossow
Sent: Friday, June 22, 2012 8:02 PM
To: cctalk at classiccmp.org
Subject: Re: Interested in learning 68000 hard/soft
On 6/22/12 4:50 PM, Al Kossow wrote:
http://web.archive.org/web/20010302122353/http://www.derivation.com/~c
Thanks Al! Yes, that's a very nice MC68030 station and well documented.
I've reviewed the files and the workstation PCB is quite large. It requires
a 4-layer PCB that is about the size of a PC/XT motherboard. I think it
would be very expensive to make these PCBs for hobbyists.
What I was thinking was more a smaller scale version of this without the
PC/AT bus interface and consolidated on to a smaller more affordable PCB. I
think this is feasible to do but I am going to need some help from hobbyists
familiar with the 68030 and able to trim the design down to fit onto a 60
square inch PCB.
Why 60 square inch? That is the largest size PCB that Advanced Circuits
accepts for their low-cost PCB prototyping service. The ability to make
prototype PCBs for 4 for $150 makes the project affordable without the large
up-front investment in big multi-layer PCBs.
This project is within reach but it is going to be a major undertaking.
Thanks and have a nice day!
Andrew Lynch
On 6/22/12 4:31 PM, Andrew Lynch wrote:
> Hi
>
> Along these lines, does anyone know of a "minimal" 68030 circuit
schematic?
Basically
a 68030 CPU with RAM, ROM, and a UART or other simple IO?
With emphasis on "minimal" as in as few components as practical?
I am thinking a 68030 SBC would be neat with a timer, a couple of
serial ports, and a Propeller for VGA, PS/2 keyboard, and microSD. No
bus expansion, IDE, or floppy controller to keep part count low.
68030 is the first of the 68K line with the MMU built in so it would
be Un*x capable assuming 16MB (SIMM) RAM.
I am not looking for Mac, Atari, Amiga, etc compatibility.
Constructive ideas appreciated. Thanks and have a nice day!
yliax/ws030.html
mirrored here
http://retro.co.za/68000/ftp.cs.indiana.edu/pub/goo/