Chris Ward's 6502 Computer

Created by Chris Ward
Last update 26/01/2002
(DD/MM/YYYY)

Other Homebrew 6502 Computers:

• André Fachat's site - Designs for several more advanced 6502-based computers including the Gecko and CS/A65. Also an operating system for these machines (and possibly other 6502 designs) called OS/A65.
• DIY6502 by Douglas Beattie - A design for a single-board 6502 computer with similar specs to my own, with schematic and wire-wrap layout. You can also got a 6502 cross-assembler for the PC at this site.
• Harry The Bastard's site - Harry has made a 6502 machine to provide security for his van.
• Phil Pemberton's site - Phil is another 6502 fan, and is planning on building a 6502 machine soon.

Electronic Component Suppliers:

• Farnell - Massive range of components, free catalogue on request, good on-line ordering, and free delivery (min. order £10).
• Maplin - Good range, online ordering, and shops throughout the UK. The catalogue isn't free though.
• RS - Another big UK-based electronics supplier with on-line ordering.
• Greenweld - Stock a fairly limited range of standard components (but can be cheaper than Maplin). The main attraction is the surplus items they sell - all sorts of exciting electronic bits at ridiculous prices, e.g. I bought a 60W switch-mode power supply for £3! Unfortuntely these items aren't listed on their site, so you'll have to ask to be put on their mailing list.
• Bull Electrical - Like Greenweld they have a modest range of standard components but lots of weird/cool/cheap surplus items (they are famous for recently stocking lasers from Chieftain tanks!). Their website is good, with online ordering, and they also have an auction site.

Semiconductor Manufacturers:

• Dallas Semiconductor - Produce reset devices (I use the DS1813) and real-time clocks.
• Rockwell - Make the 6502, 6522 & 6551, but don't admit this on their web site. They'd rather tell you about their modem chipsets.
• ST Microelectronics - The new name for SGS-Thomson. They make the M28C64C EEPROM which I have been using.

Other Useful Places:

• www.6502.org - This site has plenty of useful 6502 related links, plus 65xx data sheets and other stuff.
• Chip data at funet.
• MJK's Commodore Workshop - Technical information on Commodore 8-bit machines, including details of the 6502, 6522 and 6551 chips.
• Tomi Engdahl's Electronics Info Page - An enormous amount of electronics related links and information.