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Fix README and doc

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tmk 2013-07-11 16:23:53 +09:00
parent 9d7278682e
commit d2ea9e80a0
2 changed files with 113 additions and 89 deletions
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36
keyboard/hhkb/doc/HHKB.txt
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@ -30,25 +30,27 @@ Connector Cable
Two PCBs are connected by 15 lines(13 in case of Pro2).
Vcc and GND use 3(2) lines each, other 9 lines are for keyboard signaling.
Keyswitch PCB connector Teensy++ pins
-------------------------------------------------------------------------------
1 Vcc(5V) Not exist on Pro2 5V
2 Vcc(5V) 5V
3 Vcc(5V) 5V
4 TP1684 KEY: Low(0) when key pressed PE6 input(with pullup)
5 TP1684 KEY_PREV: assert previous key state??? PE7 output
6 HC4051 A(bit0) select 8 rows(0 to 7) PB0 output
7 HC4051 B(bit1) PB1 output
8 HC4051 C(bit2) PB2 output
9 LS145 A(bit0) select 8 columns(0 to 7) PB3 output
10 LS145 B(bit1) PB4 output
11 LS145 C(bit2) PB5 output
12 LS145 D(enable) Low(0) enable selected column PB6 output
13 GND GND
14 GND GND
15 GND Not exist on Pro2 GND
Keyswitch connector
pro pro2 Description Teensy++ pins
--------------------------------------------------------------------------------------------
1 Vcc(5V) Not exist on Pro2 5V
2 1 Vcc(5V) 5V
3 2 Vcc(5V) 5V
4 3 TP1684 KEY: Low(0) when key pressed PE6 input(with pullup)
5 4 TP1684 KEY_PREV: make threshold PE7 output
6 5 HC4051 A(bit0)\ PB0 output
7 6 HC4051 B(bit1) > select row(0 to 7) PB1 output
8 7 HC4051 C(bit2)/ PB2 output
9 8 LS145 A(bit0)\ PB3 output
10 9 LS145 B(bit1) > select column(0 to 7) PB4 output
11 10 LS145 C(bit2)/ PB5 output
12 11 LS145 D(enable) Low(0) enables selected column PB6 output
13 12 GND GND
14 13 GND GND
15 GND Not exist on Pro2 GND
NOTE: guessing pin5(KEY_PREV) may work for hysteresis of capacitive sensing.
NOTE: 1KOhm didn't work as pullup resistor on KEY. AVR internal pullup or 10KOhm resistor was OK.
(HHKB_connector.jpg)