@@ 11,12 11,12 @@ My prototype firmware source tree is here:
branch: hhkb(http://github.com/tmk/tmk_keyboard/tree/hhkb)
This firmware is a port of my previous project:
HHKB style Mod(http://geekhack.org/showwiki.php?title=Island:11930)
-PJRC(Teensy++/Teensy)
- http://www.pjrc.com/teensy/
+PJRC:
+ Teensy++/Teensy(http://www.pjrc.com/teensy/)
Pros:
- * without pattern cuting, case mod and soldering
+ * without pattern cutting, case mod and soldering
* can keep original controller intact
* can change HHKB behaviour as you like(by C programming)
@@ 35,6 35,7 @@ Any suggestions or ideas are welcome.
NOTE:
My HHKB is just "Professional". This means followings may not be applied to "Professional2".
+
DISCLAIMER:
I'm not a professional for electronics and MCU programming. This may damage your HHKB.
And my English writing is poor, I'm not sure I can convey my notions accurately.
@@ 57,6 58,7 @@ HHKB pro has two PCBs and some chips.
Controller PCB:
M38K07M4 Renesas MCU with USB function
http://documentation.renesas.com/eng/products/mpumcu/rej03b0192_38k0ds.pdf
+
(HHKB_controller.jpg)
Keyswitch PCB:
@@ 67,7 69,9 @@ Keyswitch PCB:
BU9831 Non-volatile electronic potentiometer: for calibration?
http://www.alldatasheet.com/datasheet-pdf/pdf/36387/ROHM/BU9831.html
TP1684 Capacitive Sensing controller: no datasheet available.
+
(HHKB_keyswitch.jpg)
+
Topre original chip?
(HHKB_TP1684.jpg)
@@ 79,8 83,8 @@ Two PCBs are connected by 15 lines. Vcc/GND uses 3 lines each, 9lines for keyboa
1 Vcc(5V) 5V
2 Vcc(5V)
3 Vcc(5V)
- 4 TP1684 KEY: Low(0) when key pressed PE6 input w/o pullup
- 5 TP1684 unknown:how to use PE7 input w/o pullup
+ 4 TP1684 KEY: Low(0) when key pressed PE6 input(with pullup)
+ 5 TP1684 unknown:how to use PE7 input(with pullup)
6 HC4051 A(bit0) select 8 rows(0 to 7) PB0 output
7 HC4051 B(bit1) PB1 output
8 HC4051 C(bit2) PB2 output
@@ 91,6 95,7 @@ Two PCBs are connected by 15 lines. Vcc/GND uses 3 lines each, 9lines for keyboa
13 GND
14 GND
15 GND GND
+
(HHKB_connector.jpg)
@@ 140,11 145,13 @@ Signals charts:
While pressing space bar, watched HHKB original controller signals by logic analyzer.
Row and column is looping between 0-7 each for selecting a key.
A key is scaned every about 15ms, so scan rate is 66Hz.
+
(HHKB_chart1.jpg)
Space bar locate at ROW:3 COL:7. Key are selected by HC4051(C,B,A) and LS145(C,B,A).
Key state can be read on TP1684(4/KEY) while asserting low on LS145(D).
Usage of TP1684(5) is unknown. Key state can be read without using this signal.
+
(HHKB_chart2.jpg)
@@ 174,57 181,6 @@ Keymap layers
-------------
Followings are added layers with additional Fn keys. They are not final decision.
-Layer0(Default Layer):
- ,-----------------------------------------------------------.
- |Esc| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| -| =| \| `|
- |-----------------------------------------------------------|
- |Tab | Q| W| E| R| T| Y| U| I| O| P| [| ]|Backs|
- |-----------------------------------------------------------|
- |Contro| A| S| D| F| G| H| J| K| L| ;| '|Return |
- |-----------------------------------------------------------|
- |Shift | Z| X| C| V| B| N| M| ,| .| /|Fn2 |Fn1|
- `-----------------------------------------------------------'
- |Gui|Alt |Space |Fn3 |Gui|
- `-------------------------------------------'
-
-Layer1(Fn1) HHKB mode:
- ,-----------------------------------------------------------.
- |Pow| F1| F2| F3| F4| F5| F6| F7| F8| F9|F10|F11|F12|Ins|Del|
- |-----------------------------------------------------------|
- |Caps | | | | | | | |Psc|Slk|Pus|Up | |Backs|
- |-----------------------------------------------------------|
- |Contro|VoD|VoU|Mut| | | *| /|Hom|PgU|Lef|Rig|Enter |
- |-----------------------------------------------------------|
- |Shift | | | | | | +| -|End|PgD|Dow|Shift |xxx|
- `-----------------------------------------------------------'
- |Gui |Alt |Space |Alt |Gui|
- `--------------------------------------------'
-
-Layer2(Fn2) mouse mode:
- ,-----------------------------------------------------------.
- |Esc| | | | | | | | | | | | | | |
- |-----------------------------------------------------------|
- |Tab | | | | | | | | | | | | |Backs|
- |-----------------------------------------------------------|
- |Contro| | | | | | | |MwL|MwD|MwU|MwR|Return |
- |-----------------------------------------------------------|
- |Shift | | | | | | |McL|McD|McU|McR|xxxxxx| |
- `-----------------------------------------------------------'
- |Gui |Alt |Mb1 |Mb1 |Mb2|
- `--------------------------------------------'
-
-Layer3(Fn3) vi mode:
- ,-----------------------------------------------------------.
- |Esc| F1| F2| F3| F4| F5| F6| F7| F8| F9|F10|F11|F12| | |
- |-----------------------------------------------------------|
- |Tab | | | | | |Hom|PgD|PgUlEnd| |MwD|MwU|Backs|
- |-----------------------------------------------------------|
- |Contro| | | | | |Lef|Dow|Up |Rig| | |Return |
- |-----------------------------------------------------------|
- |Shift | | | | | | |McL|McD|McU|McR|Mb1 | |
- `-----------------------------------------------------------'
- |Gui|Alt |Mb1 |xxxxx|Mb2|
- `-------------------------------------------'
- Mc: Mouse Cursor / Mb: Mouse Button / Mw: Mouse Wheel
+see keymap_hhkb.c
EOF
@@ 37,9 37,9 @@ void matrix_init(void)
// row & col output(PB0-6)
DDRB = 0xFF;
PORTB = KEY_SELELCT(0, 0);
- // KEY & VALID input w/o pullup(PE6,7)
+ // KEY & VALID input with pullup(PE6,7)
DDRE = 0x3F;
- PORTE = 0x00;
+ PORTE = 0xC0;
// initialize matrix state: all keys off
for (int i=0; i < MATRIX_ROWS; i++) _matrix0[i] = 0xFF;