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qmk_firmware/m0110_usb
History
tmk 805ce3c130 Fix key stuck bug of M0110A support. 
- rewrite special key handling in m0110.c
- add mouse keys to keymap
 		13 years ago
..
doc Fix bug on RAW2SCAN. Add work around for M0110A. 13 years ago
Makefile M0110: added keymaps, mousekeys 13 years ago
README.md Fix key stuck bug of M0110A support. 13 years ago
config.h Fix key stuck bug of M0110A support. 13 years ago
keymap.c Fix key stuck bug of M0110A support. 13 years ago
led.c Added protocol support for Macintosh keyboard M0110. 13 years ago
matrix.c Fix key stuck bug of M0110A support. 13 years ago

README.md

M0110/M0110A to USB keyboard converter

This firmware converts the protocol of Apple Macintosh keyboard M0110/M0110A into USB. Target board of this project is PJRC Teensy, though, you can use other board with USB AVR like ATmega32U4 and AT90USB.

M0110

M0110A support was contributed by skagon@github.

Connection

You need 4P4C plug and cable to connect Teensy or other AVR dev board into the keyboard. Teensy port PF0 is assigned for CLOCK line and PF1 for DATA by default, you can change pin configuration with editing config.h.

You can find 4P4C plugs on telephone handset cable. Note that it is crossover connection while Macintosh keyboard cable is straight.

Conection

In this pic:

  1. GND(Black)
  2. CLOCK(Red)
  3. DATA(Green)
  4. +5V(Yellow)

Not that wire colors may vary in your cable.

Pinout

Jack fig

Pull-up Registor

You may need pull-up registors on signal lines(CLOCK, DATA) in particular when you have long or coiled cable. 1k-10k Ohm will be OK for this purpose. In some cases MCU can't read signal from keyboard correctly without pull-up resistors.

Building Frimware

To compile firmware you need AVR GCC. You can use WinAVR on Windows. You can edit Makefile and config.h to change compile options and pin configuration.

$ git clone ... (or download source)
$ cd m0110_usb
$ make

and program your Teensy with PJRC Teensy loader.

Keymap

You can change keymaps by editing keymap.c.

M0110

Default

,---------------------------------------------------------.
|  `|  1|  2|  3|  4|  5|  6|  7|  8|  9|  0|  -|  =|Backs|
|---------------------------------------------------------|
|Tab  |  Q|  W|  E|  R|  T|  Y|  U|  I|  O|  P|  [|  ]|  \|
|---------------------------------------------------------|
|Fn0   |  A|  S|  D|  F|  G|  H|  J|  K|  L|  ;|  '|Return|
|---------------------------------------------------------|
|Shift   |  Z|  X|  C|  V|  B|  N|  M|  ,|  ,|  /|Shift   |
`---------------------------------------------------------'
     |Ctr|Alt |         Space               |Gui |Ctr|
     `-----------------------------------------------'
You can register Esc by hitting(press&release) Fn0 quickly.

HHKB/WASD cursor Layer(Fn0)

,---------------------------------------------------------.
|Esc| F1| F2| F3| F4| F5| F6| F7| F8| F9|F10|F11|F12|Delet|
|---------------------------------------------------------|
|Caps |Hom| Up|PgU|   |   |   |   |Psc|Slk|Pau|Up |Ins|  \|
|---------------------------------------------------------|
|Fn0   |Lef|Dow|Rig|   |   |   |   |Hom|PgU|Lef|Rig|Return|
|---------------------------------------------------------|
|Shift   |End|   |PgD|   |VoD|VoU|Mut|End|PgD|Dow|Shift   |
`---------------------------------------------------------'
     |Ctr|Alt |         Space               |Gui |Ctr|
     `-----------------------------------------------'

M0110A

Default

,---------------------------------------------------------. ,---------------.
|  `|  1|  2|  3|  4|  5|  6|  7|  8|  9|  0|  -|  =|Backs| |Gui|  =|  /|  *|
|---------------------------------------------------------| |---------------|
|Tab  |  Q|  W|  E|  R|  T|  Y|  U|  I|  O|  P|  [|  ]|   | |  7|  8|  9|  -|
|-----------------------------------------------------'   | |---------------|
|Fn0   |  A|  S|  D|  F|  G|  H|  J|  K|  L|  ;|  '|Return| |  4|  5|  6|  +|
|---------------------------------------------------------| |---------------|
|Shift   |  Z|  X|  C|  V|  B|  N|  M|  ,|  ,|  /|Shft|Up | |  1|  2|  3|   |
|---------------------------------------------------------| |-----------|Ent|
|Ctrl |Alt    |         Space             |  \|Lft|Rgt|Dn | |      0|  .|   |
`---------------------------------------------------------' `---------------'

HHKB/WASD cursor Layer(Fn0)

,---------------------------------------------------------. ,---------------.
|Esc| F1| F2| F3| F4| F5| F6| F7| F8| F9|F10|F11|F12|Delet| |Nlk|Mb1|Mb3|Mb2|
|---------------------------------------------------------| |---------------|
|Caps |Hom| Up|PgU|   |   |   |   |Psc|Slk|Pau|Up |Ins|   | |MwD|McU|MwU|MwU|
|-----------------------------------------------------'   | |---------------|
|Fn0   |Lef|Dow|Rig|   |   |   |   |Hom|PgU|Lef|Rig|Return| |McL|McD|McR|MwD|
|---------------------------------------------------------| |---------------|
|Shift   |End|   |PgD|   |VoD|VoU|Mut|End|PgD|Dow|Shif|Up | |MwL|McD|MwR|   |
|---------------------------------------------------------| |-----------|Mb2|
|Ctrl |Alt    |         Space        |Gui |  \|Lft|Rgt|Dn | |    Mb1|Mb3|   |
`---------------------------------------------------------' `---------------'

Debug

You can use PJRC HID listen to see debug output.

The converter has some functions for debug, press Alt+Gui+H simultaneously to get help. These function is totally undocumented, tentative, inconsistent and buggy.