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Fix README of M0110

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converter/m0110_usb/README.md
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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](http://www.pjrc.com/teensy/), though,
you can use other board with USB AVR like `ATmega32U4` and `AT90USB`.
This firmware converts the protocol of Apple Macintosh keyboard **M0110**, **M0110A** and **M0120** into USB. Target of this project is USB AVR controller **ATmega32U4**. Using this converter you can revive these retro keyboards with modern computer.
Pics of **M0110 + M0120** and **M0110A**.
![M0110+M0120](http://i.imgur.com/dyvXb2Tm.jpg)
![M0110A](http://i.imgur.com/HuHOEoHm.jpg)
![M0110](https://raw.github.com/tmk/tmk_keyboard/master/converter/m0110_usb/doc/m0110.jpg)
- M0110A support was contributed by [skagon@github](https://github.com/skagon).
- M0120 also is supported. keys(+ * / and ,) on M0120 are recognized as cursor keys.
@ -13,49 +15,42 @@ you can use other board with USB AVR like `ATmega32U4` and `AT90USB`.
Update
------
- 2013/08 Change port for signals PF to PD
- 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.
Connection
----------
You need 4P4C plug and cable to connect Teensy or other AVR dev board into the keyboard.
Teensy port `PD0` is assigned for `CLOCK` line and `PD1` for `DATA` by default,
you can change pin configuration with editing *config.h*.
Building Hardware
-----------------
You need **4P4C** cable and **ATMega32U4** 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`.
You can find 4P4C plugs on telephone handset cable. Note that it is *crossover* connection
while Macintosh keyboard cable is *straight*.
[![M0110 Converter](http://i.imgur.com/4G2ZOegm.jpg)](http://i.imgur.com/4G2ZOeg.jpg)
[![Conection](https://raw.github.com/tmk/tmk_keyboard/master/converter/m0110_usb/doc/teensy.jpg)]
### 4P4C phone handset cable
Note that original cable used with Mac is **straight** while phone handset cable is **crossover**.
In this pic:
<http://en.wikipedia.org/wiki/Modular_connector#4P4C>
1. `GND`(Black)
2. `CLOCK`(Red)
3. `DATA`(Green)
4. `+5V`(Yellow)
Close-up pic of handset cable. You can see one end of plug has reverse color codes against the other. Click to enlarge.
[![4P4C cable](http://i.imgur.com/3S9P1mYm.jpg?1)](http://i.imgur.com/3S9P1mY.jpg?1)
Note that wire colors may vary in your cable.
[Teensy]: http://www.pjrc.com/teensy/
### Pinout
### Socket Pinout
- <http://pinouts.ru/Inputs/MacKeyboard_pinout.shtml>
- <http://en.wikipedia.org/wiki/Modular_connector#4P4C>
![Jack fig](http://www.kbdbabel.org/conn/kbd_connector_macplus.png)
### 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.
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 that case the converter may not read signal from keyboard correctly without pull-up resistors.
Building Frimware
-----------------
To compile firmware you need AVR GCC. You can use [WinAVR](http://winavr.sourceforge.net/) on Windows.
You can edit *Makefile* and *config.h* to change compile options and pin configuration.
To compile firmware you need AVR GCC. You can edit *Makefile* and *config.h* to change compile options and pin configuration.
$ git clone git://github.com/tmk/tmk_keyboard.git (or download source)
$ cd m0110_usb
@ -71,64 +66,69 @@ Keymap
You can change keymaps by editing *keymap.c*.
### M0110 & M0120
#### *Default*
#### *Default Layer*
,---------------------------------------------------------. ,---------------.
| `| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| -| =|Backs| |Ctl| -|Lft|Rgt|
| `| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| -| =|Backs| |Clr| -|Lft|Rgt|
|---------------------------------------------------------| |---------------|
|Tab | Q| W| E| R| T| Y| U| I| O| P| [| ]| \| | 7| 8| 9| Up|
|---------------------------------------------------------| |---------------|
|Fn0 | A| S| D| F| G| H| J| K| L| ;| '|Return| | 4| 5| 6| Dn|
|Caps | A| S| D| F| G| H| J| K| L| ;| '|Enter | | 4| 5| 6| Dn|
|---------------------------------------------------------| |---------------|
|Shift | Z| X| C| V| B| N| M| ,| ,| /|Shift | | 1| 2| 3| |
`---------------------------------------------------------' |-----------|Ent|
|Ctl|Alt | Space |Gui |Ctl| | 0| .| |
|Ctl|Gui | Space |Alt |Ctl| | 0| .| |
`-----------------------------------------------' `---------------'
#### *HHKB/WASD Layer(WASD/IJKL)*
- `Space` and `Enter` also work as `Fn` layer switch key when holding down.
#### *Function Layer(WASD/HHKB)*
,---------------------------------------------------------. ,---------------.
|Esc| F1| F2| F3| F4| F5| F6| F7| F8| F9|F10|F11|F12|Delet| |Nlk| -|Lft|Rgt|
|---------------------------------------------------------| |---------------|
|Caps |Hom| Up|PgU| | | |PgU| Up|Hom|Psc|Slk|Pau|Ins| | 7| 8| 9| Up|
|Caps |Hom| Up|PgU| | | | |Psc|Slk|Pau|Up |Ins| \| | 7| 8| 9| Up|
|---------------------------------------------------------| |---------------|
|Fn0 |Lef|Dow|Rig| | | |Lef|Dow|Rig| | |Return| | 4| 5| 6| Dn|
|Caps |Lef|Dow|Rig| | | | |Hom|PgU|Lef|Rig|Enter | | 4| 5| 6| Dn|
|---------------------------------------------------------| |---------------|
|Shift |End| |PgD| | | |PgD| |End| |Shift | | 1| 2| 3| |
|Shift |End| |PgD| | | | |End|PgD|Dow|Shift | | 1| 2| 3| |
`---------------------------------------------------------' |-----------|Ent|
|Ctl|Alt | Space |Gui |Ctl| | 0| .| |
|Ctl|Gui | Space |Alt |Ctl| | 0| .| |
`-----------------------------------------------' `---------------'
### M0110A
#### *Default*
#### *Default Layer*
,---------------------------------------------------------. ,---------------.
| `| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| -| =|Backs| |Ctl| =| /| *|
| `| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| -| =|Backs| |Clr| =| /| *|
|---------------------------------------------------------| |---------------|
|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| +|
|Caps | A| S| D| F| G| H| J| K| L| ;| '|Enter | | 4| 5| 6| +|
|---------------------------------------------------------| |---------------|
|Shift | Z| X| C| V| B| N| M| ,| ,| /|Shft| Up| | 1| 2| 3| |
|---------------------------------------------------------| |-----------|Ent|
|Alt |Gui | Space | \|Lft|Rgt| Dn| | 0| .| |
|Ctrl |Gui | Space | \|Lft|Rgt|Dwn| | 0| .| |
`---------------------------------------------------------' `---------------'
#### *Cursor Layer(WASD/IJKL)*
- `Space` and `Enter` also work as `Fn` layer switch key when holding down.
- `Backslash(\)` also works as `Alt` when holding down.
#### *Function Layer(WASD/HHKB)*
,---------------------------------------------------------. ,---------------.
|Esc| F1| F2| F3| F4| F5| F6| F7| F8| F9|F10|F11|F12|Delet| |Nlk| =| /| *|
|---------------------------------------------------------| |---------------|
|Caps |Hom| Up|PgU| | | |PgU| Up|Hom|Psc|Slk|Pau| | | 7| 8| 9| -|
|Caps |Hom| Up|PgU| | | | |Psc|Slk|Pau|Up |Ins| | | 7| 8| 9| -|
|-----------------------------------------------------' | |---------------|
|Fn0 |Lef|Dow|Rig| | | |Lef|Dow|Rig| | |Return| | 4| 5| 6| +|
|Caps |Lef|Dow|Rig| | | | |Hom|PgU|Lef|Rig|Enter | | 4| 5| 6| +|
|---------------------------------------------------------| |---------------|
|Shift |End| |PgD| | | |PgD| |End| |Shif|PgU| | 1| 2| 3| |
|Shift |End| |PgD| | | | |End|PgD|Dow|Shif|PgU| | 1| 2| 3| |
|---------------------------------------------------------| |-----------|Ent|
|Alt |Gui | Space |Ins|Hom|End|PgD| | 0| .| |
|Ctrl |Gui | Space | \|Hom|End|PgD| | 0| .| |
`---------------------------------------------------------' `---------------'
Debug
-----
You can use [PJRC HID listen](http://www.pjrc.com/teensy/hid_listen.html) to see debug output.
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 `<Command>+H` simultaneously to get help.
The converter has some functions for debug, press `<magickey>+H` simultaneously to get help.
These function is totally undocumented, tentative, inconsistent and buggy.
magickey: Shift+Option+Command(Shift+Alt+Gui or Shift+Alt+Control)
- Command: `Shift+Option+Command`(`Shift+Alt+Gui` or `Shift+Alt+Control`)

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