Conversion of the Thomson MO5 main board into Kicad

[WARNING] Please read carefully this note before using this project. It contains important facts.

Content

1. What is Conversion of the Thomson MO5 main board into Kicad, and when to use it ?
2. What should you know before using Conversion of the Thomson MO5 main board into Kicad ?
3. How to use Conversion of the Thomson MO5 main board into Kicad ?
4. Known issues
5. Miscellanous

1. What is Conversion of the Thomson MO5 main board into Kicad, and when to use it ?

Conversion of the Thomson MO5 main board into Kicad is a conversion to Kicad EDA of the schematics of a computer released around 1984 known as the "Thomson MO5".

Licence

Conversion of the Thomson MO5 main board into Kicad is published under the Creative Commons CC0 license. You can find a copy of the licence there : https://creativecommons.org/publicdomain/zero/1.0/legalcode

You can copy, modify, distribute and perform the work, even for commercial purposes, all without asking permission.

Conversion of the Thomson MO5 main board into Kicad is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

Release notes

v1.0.0-beta-2

• Issue #1 -- Small corrections for beta2

  • Schematic -- fixes unit of L01, 'nH' instead of 'mH'
  • wider lateral chamfers for extension connector, set to 1mm along x and y axis
  • prevent a small copper pour of GND inside the extension connector
  • exclude copper pour around internal mounting holes (front layer)
  • tweak the width of the pads of the extension connector, from 2mm to 1.5mm

• Issue #2 -- Small enhancements for beta2

  • Silkscreen -- add text to render REVISION and ISSUE_DATE
  • enlarge vias for modding cartridge port to get E and R/W
  • Some additionnal fixes of DRC violations
  • Schematic -- D02 value becomes 'BZX46C12'
  • Reset switch -- ad-hoc footprint to combine regular switch with the original reset button footprint

v1.0.0-beta-1

The PCB is finished, ready for testing (mechanical, actual assembly) to spot errors.

v1.0.0-alpha-1 to v1.0.0-alpha-6

The whole schematics has been captured, need proofreading. A new alpha is produced regularly after some fixes are commited.

2. What should you know before using Conversion of the Thomson MO5 main board into Kicad ?

Conversion of the Thomson MO5 main board into Kicad is made using Kicad 7.

Do not use Conversion of the Thomson MO5 main board into Kicad if this project is not suitable for your project.

3. How to use Conversion of the Thomson MO5 main board into Kicad ?

From sources

To get the latest available work, one must clone the git repository.

git clone --recurse-submodules https://github.com/sporniket/kicad-conversions--thomson-mo5--v1.git

Then, open the project with Kicad 7.

4. Known issues

See the project issues page.

5. Miscellanous

Report issues

Use the project issues page.