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make input ports(PE6,7) *with pullup*.

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b6_b7_audio
tmk 15 years ago
parent 99bba8d949
commit c8e1ad8c91
2 changed files with 15 additions and 59 deletions
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  1. 70
      HHKB/HHKB.txt
  2. 4
      matrix_hhkb.c

70
HHKB/HHKB.txt
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@ -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

4
matrix_hhkb.c
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@ -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;

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