|
|
@@ -2,128 +2,144 @@ Alternative Controller for HHKB Pro |
|
|
|
=================================== |
|
|
|
I wanted to add some features like vi cursor and mouse keys to my [HHKB][HHKB] but its controller is not programmable and |
|
|
|
firmware source code is not open, of course. This means customizing this keyboard needs to replace original |
|
|
|
controller with programmable one. For this purpose I used PJRC [Teensy++][Teensy] as alternative controller. |
|
|
|
controller with programmable one. This controller can work with HHKB Professional and Professional 2 model. |
|
|
|
|
|
|
|
See [this thread][AltController] in geekhack.org. |
|
|
|
|
|
|
|
[HHKB]: http://www.pfu.fujitsu.com/hhkeyboard/ |
|
|
|
[AltController]: http://geekhack.org/index.php?topic=12047.0 |
|
|
|
[Teensy]: http://www.pjrc.com/teensy/ |
|
|
|
|
|
|
|
|
|
|
|
My keyboard firmware source tree is here: http://github.com/tmk/tmk_keyboard |
|
|
|
See directory keyboard/hhkb to build firmware for HHKB. |
|
|
|
|
|
|
|
|
|
|
|
##Features |
|
|
|
* Customizable keymap |
|
|
|
* More keymap layers(more Fn keys) |
|
|
|
* Mouse keys |
|
|
|
* USB NKRO |
|
|
|
|
|
|
|
See README of [tmk_keyboard] for more. |
|
|
|
|
|
|
|
[tmk_keyboard]: http://github.com/tmk/tmk_keyboard |
|
|
|
|
|
|
|
###Pros |
|
|
|
* No risk: Everything is all reversible |
|
|
|
* Without PCB trace cutting, case mod or any destructives |
|
|
|
* Can keep original controller intact |
|
|
|
* Can change all HHKB behaviour as you like |
|
|
|
|
|
|
|
###Cons |
|
|
|
* Void your warranty |
|
|
|
* Lose USB hub function in case of Pro2 |
|
|
|
* Lose USB hub function of Pro2 |
|
|
|
|
|
|
|
##DISCLAIMER |
|
|
|
I'm not a professional of electronics or MCU programming. This may damage your HHKB. |
|
|
|
I'm not a professional of electronics nor MCU programming. This may damage your HHKB. |
|
|
|
And my English writing is poor, I'm not sure I can convey my notions accurately. |
|
|
|
|
|
|
|
|
|
|
|
##Documents |
|
|
|
See [doc/HHKB.txt](doc/HHKB.txt) and files under [doc/](doc/) for internal of HHKB and this controller. |
|
|
|
|
|
|
|
|
|
|
|
##Build Firmware & Program |
|
|
|
You can choose some combination of hardware and USB protocol stack([LUFA], [PJRC]). |
|
|
|
|
|
|
|
### Install Tools |
|
|
|
See [this document](../../doc/build.md). |
|
|
|
|
|
|
|
##Build Firmware |
|
|
|
You can choose some combination of MCU and USB protocol stack. |
|
|
|
|
|
|
|
### Teensy++(AVR USB family) with [LUFA] |
|
|
|
0. Edit **matrix.c** to use your pin configuration. See doc/HHKB.txt for detail. |
|
|
|
|
|
|
|
1. Edit **keymap.c** to use your favoirte keymap. |
|
|
|
|
|
|
|
2. Edit **Makefile** if you want to use other `MCU` than Teensy++ 2.0. |
|
|
|
### TMK Alt Controller Board |
|
|
|
$ make -f Makefile.tmk |
|
|
|
|
|
|
|
3. Build firmware binary file: |
|
|
|
`$ make -f Makefile.lufa` |
|
|
|
This programs the controller with [dfu-programmer] if the tool is intalled and configured properly. |
|
|
|
|
|
|
|
4. Program MCU with PJRC [Teensy Loader] tool. If you install command line version of the loader just run: |
|
|
|
`$ make -f Makefile.lufa teensy` |
|
|
|
$ make -f Makefile.tmk dfu |
|
|
|
|
|
|
|
[LUFA]: http://www.fourwalledcubicle.com/LUFA.php |
|
|
|
[Teensy Loader]: http://www.pjrc.com/teensy/loader.html |
|
|
|
Push reset button and program with [FLIP]. The tool should be intalled and configured properly. |
|
|
|
|
|
|
|
$ make -f Makefile.tmk flip |
|
|
|
|
|
|
|
###AVR Mega with [V-USB] |
|
|
|
Follow below if you want to use AVR with V-USB as . |
|
|
|
Or you can also program with FLIP GUI. |
|
|
|
|
|
|
|
0. Edit **matrix.c** to use your pin configuration. See doc/HHKB.txt for detail. |
|
|
|
[dfu-programmer]: http://dfu-programmer.sourceforge.net/ |
|
|
|
[FLIP]: http://www.atmel.com/tools/FLIP.aspx |
|
|
|
|
|
|
|
1. Edit **keymap.c** to use your favoirte keymap. |
|
|
|
|
|
|
|
2. Edit **usbconfig.h** to configure V-USB options. |
|
|
|
### PJRC Teensy++ |
|
|
|
Build with [LUFA] USB stack: |
|
|
|
|
|
|
|
3. Edit **Makefile.vusb** to define `MCU` and `F_CPU`. |
|
|
|
$ make -f Makefile.lufa |
|
|
|
|
|
|
|
4. Build firmware binary file: |
|
|
|
`$ make -f Makefile.vusb` |
|
|
|
or with [PJRC] USB stack: |
|
|
|
|
|
|
|
5. Program MCU with AVR programmer like AVRISPmkII. If you already have [USBaspLoader] on MCU just run: |
|
|
|
`$ make -f Makefile.vusb program` |
|
|
|
$ make -f Makefile.pjrc |
|
|
|
|
|
|
|
[V-USB]: http://www.obdev.at/products/vusb/index.html |
|
|
|
[USBaspLoader]: http://www.obdev.at/products/vusb/usbasploader.html |
|
|
|
Push reset button and program with [Teensy Loader(command line)]. The tool should be intalled and configured properly. |
|
|
|
|
|
|
|
$ make -f Makefile.lufa teensy |
|
|
|
$ make -f Makefile.pjrc teensy |
|
|
|
|
|
|
|
###How to Customize Keymap |
|
|
|
Later... |
|
|
|
See **keymap.c**. |
|
|
|
Or you can also program with [Teensy Loader(GUI)]. |
|
|
|
|
|
|
|
[LUFA]: http://www.fourwalledcubicle.com/LUFA.php |
|
|
|
[PJRC]: http://www.pjrc.com/teensy/usb_keyboard.html |
|
|
|
[Teensy Loader(command line)]: http://www.pjrc.com/teensy/loader_cli.html |
|
|
|
[Teensy Loader(GUI)]: http://www.pjrc.com/teensy/loader.html |
|
|
|
|
|
|
|
##Hardware |
|
|
|
|
|
|
|
###Teensy++ installation |
|
|
|
Angled USB mini B adapter is used to install Teensy++ laterally. |
|
|
|
###AVR Mega with [V-USB] |
|
|
|
Build: |
|
|
|
$ make -f Makefile.vusb |
|
|
|
|
|
|
|
![Image of Teensy install](hhkb/doc/HHKB_img/teensy_install.jpg) |
|
|
|
Program [USBaspLoader] on MCU with AVR programmer like [AVRISPmkII] and tool like [avrdude]. |
|
|
|
|
|
|
|
Bread baord wires are used to connect Teensy++. |
|
|
|
You can programs with [avrdude] once you have programmed [USBaspLoader] on MCU. |
|
|
|
$ make -f Makefile.vusb program |
|
|
|
|
|
|
|
![Image of Teensy wiring](hhkb/doc/HHKB_img/teensy_wiring.jpg) |
|
|
|
[AVRISPmkII]: http://www.atmel.com/tools/AVRISPMKII.aspx |
|
|
|
[avrdude]: http://www.nongnu.org/avrdude/ |
|
|
|
|
|
|
|
![Image of Connector](hhkb/doc/HHKB_img/connector_contact.jpg) |
|
|
|
|
|
|
|
##How to Customize |
|
|
|
See [tmk_keyboard] documents. |
|
|
|
|
|
|
|
###PJRC Teensy++ 2.0 connection |
|
|
|
+---------------+ |
|
|
|
| Teensy++ | |
|
|
|
| | |
|
|
|
| | HHKB |
|
|
|
| | ~~~~ |
|
|
|
| PB0-2|------->ROW(6-8) |
|
|
|
| PB3-5|------->COL(9-11) |
|
|
|
| PB6|------->ENABLE(12) |
|
|
|
| PE6|<-------KEY(4) |
|
|
|
| PE7|------->PREV(5) |
|
|
|
| | |
|
|
|
| | |
|
|
|
| | |
|
|
|
+---------------+ |
|
|
|
|
|
|
|
##Hardware |
|
|
|
You have some options for hardware. Development boards with USB AVR family(ATMega32U4, AT90USB1286) like Teensy will work while MegaAVR with V-USB library is also cheapear option for DIY. |
|
|
|
|
|
|
|
###1. TMK Alt Controller Board |
|
|
|
TMK designed [Keyboard Controller Board for HHKB Pro2(KiCad project)](https://github.com/tmk/HHKB_controller). |
|
|
|
See [this post](http://geekhack.org/index.php?topic=12047.msg948923#msg948923). |
|
|
|
|
|
|
|
|
|
|
|
###2. PJRC Teensy++ 2.0 connection |
|
|
|
+---------------+ |
|
|
|
| Teensy++ | |
|
|
|
| | |
|
|
|
| | HHKB pro HHKB pro2 |
|
|
|
| | ~~~~~~~~ ~~~~~~~~~ |
|
|
|
| PB0-2|------->ROW (6-8) (5-7) |
|
|
|
| PB3-5|------->COL (9-11) (8-10) |
|
|
|
| PB6|------->ENABLE (12) (11) |
|
|
|
| PE6|<-------KEY (4) (3) |
|
|
|
| PE7|------->PREV (5) (4) |
|
|
|
| | |
|
|
|
| | 5V--- (1-3) (1-2) |
|
|
|
| | GND--- (13-14) (12-13) |
|
|
|
+---------------+ |
|
|
|
|
|
|
|
- NOTE: PJRC [Teensy](http://www.pjrc.com/teensy/) |
|
|
|
[Teensy Loader]: http://www.pjrc.com/teensy/loader.html |
|
|
|
|
|
|
|
###V-USB circuit |
|
|
|
###3. V-USB connection |
|
|
|
+---+ +---------------+ |
|
|
|
USB GND | | ATmega168 | |
|
|
|
USB GND | | ATmega328p | |
|
|
|
~~~ C3 | | |
|
|
|
5V <-------+--------+---|Vcc,AVCC | HHKB |
|
|
|
R1 | | ~~~~ |
|
|
|
D- <----+--+-----R2-----|INT1 PB2-4|------->ROW(6-8) |
|
|
|
D+ <----|---+----R3-----|INT0 PC0-2|------->COL(9-11) |
|
|
|
Z1 Z2 | PC3|------->ENABLE(12) |
|
|
|
GND<----+---+-----------|GND PB0|<-------KEY(4) |
|
|
|
| PB1|------->PREV(5) |
|
|
|
5V <-------+--------+---|Vcc,AVCC | HHKB pro pro2 |
|
|
|
R1 | | ~~~~~~~~ ~~~~ |
|
|
|
D- <----+--+-----R2-----|INT1 PB2-4|------->ROW (6-8) (5-7) |
|
|
|
D+ <----|---+----R3-----|INT0 PC0-2|------->COL (9-11) (8-10) |
|
|
|
Z1 Z2 | PC3|------->ENABLE (12) (11) |
|
|
|
GND<----+---+-----------|GND PB0|<-------KEY (4) (3) |
|
|
|
| PB1|------->PREV (5) (4) |
|
|
|
| | |
|
|
|
GND+-C2--+--|XTAL1 RXD|------->Debug Console |
|
|
|
X1 | TXD|<-------Debug Console |
|
|
@@ -134,5 +150,11 @@ Bread baord wires are used to connect Teensy++. |
|
|
|
Z1,Z2: Zener 3.6V |
|
|
|
C1,C2: 22pF |
|
|
|
C3: 0.1uF |
|
|
|
X1: Crystal 20MHz(16MHz/12MHz) |
|
|
|
SW: Push Switch(Optional for bootloader) |
|
|
|
X1: Crystal 12MHz |
|
|
|
SW: Push Switch(for bootloader) |
|
|
|
|
|
|
|
- NOTE: See [V-USB] documentation for more detail of hardware and the USB stack. |
|
|
|
- NOTE: [USBaspLoader] is very useful for firmware update. |
|
|
|
|
|
|
|
[V-USB]: http://www.obdev.at/products/vusb/index.html |
|
|
|
[USBaspLoader]: http://www.obdev.at/products/vusb/usbasploader.html |