Homebrew microcomputers & video generation — #33

Post #33 by Bunsen

Source Forum	68kMLA
Category	Hardware
Post Date	Mon, 4 Mar 2013 - 12:30
Original URL	https://68kmla.org/bb/threads/homebrew-microcomputers-amp-video-generation.27426/

Post

Here is a DIY GPU to drive a classic Mac display, using a cheap 72MHz ARM over USB.

http://spritesmods.com/?art=macsearm&page=5

[ Related thread ]

Here's a roundup of DIY 68k systems:

http://hackaday.com/2012/09/04/homebrew-68k-extravaganza/

/ETA/ from the comment thread:

The student manual for The Art of Electronics provide a series of labs that result in a stand alone computer based upon the 68k series of chips…

For real old-school homebrewing of the 68000, you have to read the original, early 80′s “DTACK Grounded” newsletters, written by one of the first hobbyists to try to use in a simple system, not a heavy Unix or fancy GUI box. Heavy with the hardware and software details. Be prepared to set some time aside! All written by one engineer with very strong opinions, right in the middle of the 80′s PC craze.
http://www.easy68k.com/paulrsm/dg/

Also, from one of the linked projects:

Now the one truly remarkable feature the 68K CPU S-100 board has going for it is the fact that back in 1987 a guy named Alan Wilcox wrote a whole book describing a complete S-100 based 68K CPU board. The book is the only one of its kind -- describing the construction of an S-100 CPU board, and goes into considerable detail chapter by chapter building up a completely functional board. The book is an absolute "must read" for anybody building a 68K system. The title is "68000 Microcomputer Systems Designing & Troubleshooting" by Alan D. Wilcox. Prentice-Hall Inc. Publishers, 1987. Copies can be obtained from time to time on eBay and Amazon.