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Hardware

Hardware

I like making hardware-y type things, but unlike software, hacking around with hardware can cost a lot of money, so I don't do as much of it as I'd like. Given the sparsity of this section, I document even less of it!

The CFT Project

The CFT is my home-designed, home-built mini-computer made from scratch. I've designed and built the instruction set, data path, processor, computer, software stack, cross-assembler, emulator, software toolchain and even some of the tools needed to do this. You can call this a ‘fantasy mini’. I'm in the process of testing the processor and building peripherals and the ROM, while trying to document the whole thing.

2013

Front Panel Module

June

DFP Board

Last October

Backplane: It Fits!

Parts for the backplane have arrived and everything fits properly.

Last September

MEM Board Render

The MEM board holds 512 kW to 6 MW of RAM and 512 kW of ROM.

Last September

DFP 2 Render, revision 1939

I messed up—the previous revision of the DFP had the backplane connectors mirrored, so it'd never have mated. I chose to redo the board from scratch, but the layout is better and it looks nicer now.

Last September

DFP 2 Render

Last August

New Backplane Boards

Last June

New Backplane Render

Last May

The Easter Notes

Using KiCad, sweeping and much needed changes to the CFT are finally possible. These notes discuss most of them.
Last April

A Safer Power Supply for Old Computers

Preliminary design document for a modular power supply meant for old computers and capable of powering up as much of my collection (and accessories) as possible.
Last April
retrocomputing
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Here

  • Privacy policy
  • Turn off Disqus comments
  • My Public Key
  • Site To-Do List (probably boring)
  • Site Change Log (definitely boring)

Nearby

  • BedroomLAN Debian Repository
  • Downloads
  • Debian Packages
  • The Oric Software Page
  • My GnuPG public key

Unless otherwise stated, all content on this page is Copyright © 1994–2021 Alexios Chouchoulas. All rights are reserved. Trademarks and copyrights belonging to third parties mentioned above are all acknowledged. Any opinions inadvertently expressed are mine! All mine! Mwahahahahaha!

Some graphics courtesy of Subtle Patterns © Atle Mo (CC BY-SA 3.0).

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