make input ports(PE6,7) *with pullup*.
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2 changed files with 15 additions and 59 deletions
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@ -11,12 +11,12 @@ My prototype firmware source tree is here:
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branch: hhkb(http://github.com/tmk/tmk_keyboard/tree/hhkb)
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branch: hhkb(http://github.com/tmk/tmk_keyboard/tree/hhkb)
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This firmware is a port of my previous project:
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This firmware is a port of my previous project:
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HHKB style Mod(http://geekhack.org/showwiki.php?title=Island:11930)
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HHKB style Mod(http://geekhack.org/showwiki.php?title=Island:11930)
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PJRC(Teensy++/Teensy)
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PJRC:
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http://www.pjrc.com/teensy/
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Teensy++/Teensy(http://www.pjrc.com/teensy/)
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Pros:
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Pros:
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* without pattern cuting, case mod and soldering
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* without pattern cutting, case mod and soldering
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* can keep original controller intact
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* can keep original controller intact
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* can change HHKB behaviour as you like(by C programming)
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* can change HHKB behaviour as you like(by C programming)
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@ -35,6 +35,7 @@ Any suggestions or ideas are welcome.
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NOTE:
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NOTE:
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My HHKB is just "Professional". This means followings may not be applied to "Professional2".
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My HHKB is just "Professional". This means followings may not be applied to "Professional2".
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DISCLAIMER:
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DISCLAIMER:
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I'm not a professional for electronics and MCU programming. This may damage your HHKB.
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I'm not a professional for electronics and MCU programming. This may damage your HHKB.
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And my English writing is poor, I'm not sure I can convey my notions accurately.
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And my English writing is poor, I'm not sure I can convey my notions accurately.
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@ -57,6 +58,7 @@ HHKB pro has two PCBs and some chips.
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Controller PCB:
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Controller PCB:
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M38K07M4 Renesas MCU with USB function
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M38K07M4 Renesas MCU with USB function
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http://documentation.renesas.com/eng/products/mpumcu/rej03b0192_38k0ds.pdf
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http://documentation.renesas.com/eng/products/mpumcu/rej03b0192_38k0ds.pdf
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(HHKB_controller.jpg)
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(HHKB_controller.jpg)
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Keyswitch PCB:
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Keyswitch PCB:
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@ -67,7 +69,9 @@ Keyswitch PCB:
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BU9831 Non-volatile electronic potentiometer: for calibration?
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BU9831 Non-volatile electronic potentiometer: for calibration?
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http://www.alldatasheet.com/datasheet-pdf/pdf/36387/ROHM/BU9831.html
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http://www.alldatasheet.com/datasheet-pdf/pdf/36387/ROHM/BU9831.html
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TP1684 Capacitive Sensing controller: no datasheet available.
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TP1684 Capacitive Sensing controller: no datasheet available.
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(HHKB_keyswitch.jpg)
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(HHKB_keyswitch.jpg)
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Topre original chip?
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Topre original chip?
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(HHKB_TP1684.jpg)
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(HHKB_TP1684.jpg)
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@ -79,8 +83,8 @@ Two PCBs are connected by 15 lines. Vcc/GND uses 3 lines each, 9lines for keyboa
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1 Vcc(5V) 5V
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1 Vcc(5V) 5V
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2 Vcc(5V)
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2 Vcc(5V)
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3 Vcc(5V)
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3 Vcc(5V)
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4 TP1684 KEY: Low(0) when key pressed PE6 input w/o pullup
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4 TP1684 KEY: Low(0) when key pressed PE6 input(with pullup)
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5 TP1684 unknown:how to use PE7 input w/o pullup
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5 TP1684 unknown:how to use PE7 input(with pullup)
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6 HC4051 A(bit0) select 8 rows(0 to 7) PB0 output
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6 HC4051 A(bit0) select 8 rows(0 to 7) PB0 output
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7 HC4051 B(bit1) PB1 output
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7 HC4051 B(bit1) PB1 output
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8 HC4051 C(bit2) PB2 output
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8 HC4051 C(bit2) PB2 output
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@ -91,6 +95,7 @@ Two PCBs are connected by 15 lines. Vcc/GND uses 3 lines each, 9lines for keyboa
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13 GND
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13 GND
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14 GND
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14 GND
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15 GND GND
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15 GND GND
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(HHKB_connector.jpg)
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(HHKB_connector.jpg)
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@ -140,11 +145,13 @@ Signals charts:
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While pressing space bar, watched HHKB original controller signals by logic analyzer.
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While pressing space bar, watched HHKB original controller signals by logic analyzer.
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Row and column is looping between 0-7 each for selecting a key.
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Row and column is looping between 0-7 each for selecting a key.
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A key is scaned every about 15ms, so scan rate is 66Hz.
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A key is scaned every about 15ms, so scan rate is 66Hz.
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(HHKB_chart1.jpg)
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(HHKB_chart1.jpg)
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Space bar locate at ROW:3 COL:7. Key are selected by HC4051(C,B,A) and LS145(C,B,A).
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Space bar locate at ROW:3 COL:7. Key are selected by HC4051(C,B,A) and LS145(C,B,A).
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Key state can be read on TP1684(4/KEY) while asserting low on LS145(D).
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Key state can be read on TP1684(4/KEY) while asserting low on LS145(D).
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Usage of TP1684(5) is unknown. Key state can be read without using this signal.
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Usage of TP1684(5) is unknown. Key state can be read without using this signal.
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(HHKB_chart2.jpg)
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(HHKB_chart2.jpg)
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@ -174,57 +181,6 @@ Keymap layers
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-------------
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-------------
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Followings are added layers with additional Fn keys. They are not final decision.
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Followings are added layers with additional Fn keys. They are not final decision.
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Layer0(Default Layer):
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see keymap_hhkb.c
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,-----------------------------------------------------------.
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|Esc| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| -| =| \| `|
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|-----------------------------------------------------------|
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|Tab | Q| W| E| R| T| Y| U| I| O| P| [| ]|Backs|
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|-----------------------------------------------------------|
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|Contro| A| S| D| F| G| H| J| K| L| ;| '|Return |
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|-----------------------------------------------------------|
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|Shift | Z| X| C| V| B| N| M| ,| .| /|Fn2 |Fn1|
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`-----------------------------------------------------------'
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|Gui|Alt |Space |Fn3 |Gui|
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`-------------------------------------------'
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Layer1(Fn1) HHKB mode:
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,-----------------------------------------------------------.
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|Pow| F1| F2| F3| F4| F5| F6| F7| F8| F9|F10|F11|F12|Ins|Del|
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|-----------------------------------------------------------|
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|Caps | | | | | | | |Psc|Slk|Pus|Up | |Backs|
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|-----------------------------------------------------------|
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|Contro|VoD|VoU|Mut| | | *| /|Hom|PgU|Lef|Rig|Enter |
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|-----------------------------------------------------------|
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|Shift | | | | | | +| -|End|PgD|Dow|Shift |xxx|
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`-----------------------------------------------------------'
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|Gui |Alt |Space |Alt |Gui|
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`--------------------------------------------'
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Layer2(Fn2) mouse mode:
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,-----------------------------------------------------------.
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|Esc| | | | | | | | | | | | | | |
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|-----------------------------------------------------------|
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|Tab | | | | | | | | | | | | |Backs|
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|-----------------------------------------------------------|
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|Contro| | | | | | | |MwL|MwD|MwU|MwR|Return |
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|-----------------------------------------------------------|
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|Shift | | | | | | |McL|McD|McU|McR|xxxxxx| |
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`-----------------------------------------------------------'
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|Gui |Alt |Mb1 |Mb1 |Mb2|
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`--------------------------------------------'
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Layer3(Fn3) vi mode:
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,-----------------------------------------------------------.
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|Esc| F1| F2| F3| F4| F5| F6| F7| F8| F9|F10|F11|F12| | |
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|-----------------------------------------------------------|
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|Tab | | | | | |Hom|PgD|PgUlEnd| |MwD|MwU|Backs|
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|-----------------------------------------------------------|
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|Contro| | | | | |Lef|Dow|Up |Rig| | |Return |
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|-----------------------------------------------------------|
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|Shift | | | | | | |McL|McD|McU|McR|Mb1 | |
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`-----------------------------------------------------------'
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|Gui|Alt |Mb1 |xxxxx|Mb2|
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`-------------------------------------------'
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Mc: Mouse Cursor / Mb: Mouse Button / Mw: Mouse Wheel
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EOF
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EOF
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@ -37,9 +37,9 @@ void matrix_init(void)
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// row & col output(PB0-6)
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// row & col output(PB0-6)
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DDRB = 0xFF;
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DDRB = 0xFF;
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PORTB = KEY_SELELCT(0, 0);
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PORTB = KEY_SELELCT(0, 0);
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// KEY & VALID input w/o pullup(PE6,7)
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// KEY & VALID input with pullup(PE6,7)
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DDRE = 0x3F;
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DDRE = 0x3F;
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PORTE = 0x00;
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PORTE = 0xC0;
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// initialize matrix state: all keys off
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// initialize matrix state: all keys off
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for (int i=0; i < MATRIX_ROWS; i++) _matrix0[i] = 0xFF;
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for (int i=0; i < MATRIX_ROWS; i++) _matrix0[i] = 0xFF;
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