32 lines
1.4 KiB
Markdown
32 lines
1.4 KiB
Markdown
# Arduino-based PS2 -> Macintosh Plus keyboard adapter
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This sketch allows to use a PS/2 keyboard with the Macintosh Plus. Mapping between PS/2 keys and Mac keys is stored in the [keymap.ino](mac_plus_ps2/keymap.ino) file. Sketch uses a modified version of the [PS2Keyboard Library](http://www.pjrc.com/teensy/td_libs_PS2Keyboard.html) --- all the logic except `getScanCode()` method have been stripped.
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#### Connecting to Macintosh Plus
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Get a phone cord with RJ10 plug and connect pin as follows (pin 1 of the phone jack is on the left when the wire side is facing toward you):
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1. GND -> GND.
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2. +CLK -> pin D6,
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3. +DATA -> pin D5,
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4. Vcc -> Vin
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#### Connecting to PS/2 keyboard
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For the Mini-DIN 6 socket, pins should be connected as follows (the diagram presents the female socket):
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1. +DATA -> pin D3,
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2. (not connected),
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3. GND -> GND,
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4. Vcc -> +5V,
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5. +CLK -> pin D2,
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6. (not connected)
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## References
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* [Similar project based on stm32f0discovery kit](https://web.archive.org/web/20190414143235/http://www.synack.net/~bbraun/mackbd/index.html),
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* Mac Hardware Info (ftp://ftp.apple.asimov.net/pub/apple_II/documentation/macintosh/Mac%20Hardware%20Info%20-%20Mac%20128K.pdf) - contains the description of the protocol,
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* [Mac Plus keyboard rawcodes](https://github.com/altercation/tmk_firrmware_hhkb_teensy2/blob/master/protocol/m0110.c).
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