80 lines
3.0 KiB
Markdown
80 lines
3.0 KiB
Markdown
M0110/M0110A to USB keyboard converter
|
|
======================================
|
|
This firmware converts the protocol of Apple Macintosh keyboard **M0110**, **M0110A** and **M0120** into USB. Target of this project is USB AVR controller like **ATmega32U2** and **ATmega32U4**. Using this converter you can revive these retro keyboards with modern computer.
|
|
|
|
Read README of top directory too.
|
|
|
|
Pictures of **M0110 + M0120** and **M0110A**.
|
|
|
|
|
|
|
|
|
|
|
|
- M0110A support was contributed by [skagon@github](https://github.com/skagon).
|
|
- M0120 also is supported. keys(+ * / and ,) on M0120 are recognized as cursor keys.
|
|
|
|
|
|
|
|
Update
|
|
------
|
|
- 2013/08: Change port for signals `PF` to `PD`
|
|
- 2013/09: Change port again, it uses inversely `PD0` for data and `PD1` for clock line now.
|
|
- 2014/06: Change keymaps
|
|
- 2015/03: Add support for "International"(ISO) keyboard(keymap_intl.c)
|
|
|
|
|
|
|
|
Building Hardware
|
|
-----------------
|
|
You need [TMK converter] or AVR dev board like PJRC [Teensy]. Port of the MCU `PD1` is assigned to `CLOCK` line and `PD0` to `DATA` by default, you can change pin configuration with editing `config.h`.
|
|
|
|
[](http://i.imgur.com/4G2ZOeg.jpg)
|
|
|
|
### 4P4C phone handset cable
|
|
Note that original cable used with Mac is **straight** while phone handset cable is **crossover**.
|
|
|
|
<http://en.wikipedia.org/wiki/Modular_connector#4P4C>
|
|
|
|
Close-up picture of handset cable. You can see one end of plug has reverse color codes against the other. Click to enlarge.
|
|
[](http://i.imgur.com/3S9P1mY.jpg?1)
|
|
|
|
[Teensy]: http://www.pjrc.com/teensy/
|
|
[TMK converter]: https://github.com/tmk/keyboard_converter
|
|
|
|
|
|
### Socket Pinout
|
|
- <http://pinouts.ru/Inputs/MacKeyboard_pinout.shtml>
|
|
|
|
|
|
|
|
|
|
### Pull-up Resistor
|
|
You may need pull-up resistors on signal lines(`CLOCK`, `DATA`) in particular when you have long or coiled cable. **1k-10k Ohm** will be OK for this purpose. In that case the converter may not read signal from keyboard correctly without pull-up resistors.
|
|
|
|
|
|
|
|
Building Firmware
|
|
-----------------
|
|
To compile firmware you need AVR GCC. You can edit *Makefile* and *config.h* to change compile options and pin configuration. Also `KEYMAP` option can be used to select keymap.
|
|
|
|
$ git clone git://github.com/tmk/tmk_keyboard.git (or download source)
|
|
$ cd m0110_usb
|
|
$ make -f Makefile.rev2 clean
|
|
$ make -f Makefile.rev2 [KEYMAP={default|intl|spacefn|hasu}]
|
|
|
|
Use `Maefile.tmk_rev1` for TMK converter Rev.1, `Makefile.teensy` for Teensy instead.
|
|
|
|
|
|
|
|
Keymap
|
|
------
|
|
To create your own keymap copy existent keymap file to `keymap_name.c` and edit it.
|
|
|
|
|
|
|
|
Debug
|
|
-----
|
|
You can use [PJRC HID listen](http://www.pjrc.com/teensy/hid_listen.html) to see debug output. The converter has some functions for debug, press `<Magic>+H` simultaneously to get help.
|
|
|
|
- Magic combo: `Shift+Option+⌘` or `Shift+Option+Ctrl`(`Shift+Alt+Gui` or `Shift+Alt+Control`)
|