From e9796ff462efe7e6d06ecf56494632a780fe992b Mon Sep 17 00:00:00 2001 From: tmk Date: Wed, 3 Jul 2013 11:02:33 +0900 Subject: [PATCH 1/5] Add Makefile for tmk board and tweak scan wait --- keyboard/hhkb/Makefile.tmk | 129 +++++++++++++++++++++++++++++++++++++ keyboard/hhkb/matrix.c | 36 ++++++++++- 2 files changed, 163 insertions(+), 2 deletions(-) create mode 100644 keyboard/hhkb/Makefile.tmk diff --git a/keyboard/hhkb/Makefile.tmk b/keyboard/hhkb/Makefile.tmk new file mode 100644 index 000000000..32dd5796f --- /dev/null +++ b/keyboard/hhkb/Makefile.tmk @@ -0,0 +1,129 @@ +#---------------------------------------------------------------------------- +# On command line: +# +# make all = Make software. +# +# make clean = Clean out built project files. +# +# make coff = Convert ELF to AVR COFF. +# +# make extcoff = Convert ELF to AVR Extended COFF. +# +# make program = Download the hex file to the device. +# Please customize your programmer settings(PROGRAM_CMD) +# +# make teensy = Download the hex file to the device, using teensy_loader_cli. +# (must have teensy_loader_cli installed). +# +# make dfu = Download the hex file to the device, using dfu-programmer (must +# have dfu-programmer installed). +# +# make flip = Download the hex file to the device, using Atmel FLIP (must +# have Atmel FLIP installed). +# +# make dfu-ee = Download the eeprom file to the device, using dfu-programmer +# (must have dfu-programmer installed). +# +# make flip-ee = Download the eeprom file to the device, using Atmel FLIP +# (must have Atmel FLIP installed). +# +# make debug = Start either simulavr or avarice as specified for debugging, +# with avr-gdb or avr-insight as the front end for debugging. +# +# make filename.s = Just compile filename.c into the assembler code only. +# +# make filename.i = Create a preprocessed source file for use in submitting +# bug reports to the GCC project. +# +# To rebuild project do "make clean" then "make all". +#---------------------------------------------------------------------------- + +# Target file name (without extension). +TARGET = hhkb_tmk + +# Directory common source filess exist +TOP_DIR = ../.. + +# Directory keyboard dependent files exist +TARGET_DIR = . + + +# List C source files here. (C dependencies are automatically generated.) +SRC += keymap.c \ + matrix.c \ + led.c + +CONFIG_H = config.h + + +# MCU name +#MCU = at90usb1286 +MCU = atmega32u4 + +# Processor frequency. +# This will define a symbol, F_CPU, in all source code files equal to the +# processor frequency in Hz. You can then use this symbol in your source code to +# calculate timings. Do NOT tack on a 'UL' at the end, this will be done +# automatically to create a 32-bit value in your source code. +# +# This will be an integer division of F_USB below, as it is sourced by +# F_USB after it has run through any CPU prescalers. Note that this value +# does not *change* the processor frequency - it should merely be updated to +# reflect the processor speed set externally so that the code can use accurate +# software delays. +F_CPU = 8000000 + + +# +# LUFA specific +# +# Target architecture (see library "Board Types" documentation). +ARCH = AVR8 + +# Input clock frequency. +# This will define a symbol, F_USB, in all source code files equal to the +# input clock frequency (before any prescaling is performed) in Hz. This value may +# differ from F_CPU if prescaling is used on the latter, and is required as the +# raw input clock is fed directly to the PLL sections of the AVR for high speed +# clock generation for the USB and other AVR subsections. Do NOT tack on a 'UL' +# at the end, this will be done automatically to create a 32-bit value in your +# source code. +# +# If no clock division is performed on the input clock inside the AVR (via the +# CPU clock adjust registers or the clock division fuses), this will be equal to F_CPU. +F_USB = $(F_CPU) + +# Interrupt driven control endpoint task +OPT_DEFS += -DINTERRUPT_CONTROL_ENDPOINT + + +# Boot Section Size in *bytes* +# Teensy halfKay 512 +# Teensy++ halfKay 1024 +# Atmel DFU loader 4096 +# LUFA bootloader 4096 +# USBaspLoader 2048 +OPT_DEFS += -DBOOTLOADER_SIZE=4096 + + +# Build Options +# comment out to disable the options. +# +BOOTMAGIC_ENABLE = yes # Virtual DIP switch configuration +MOUSEKEY_ENABLE = yes # Mouse keys +EXTRAKEY_ENABLE = yes # Audio control and System control +CONSOLE_ENABLE = yes # Console for debug +COMMAND_ENABLE = yes # Commands for debug and configuration +#NKRO_ENABLE = yes # USB Nkey Rollover + + +# Search Path +VPATH += $(TARGET_DIR) +VPATH += $(TOP_DIR) + +include $(TOP_DIR)/protocol/lufa.mk +include $(TOP_DIR)/common.mk +include $(TOP_DIR)/rules.mk + +debug-on: EXTRAFLAGS += -DDEBUG +debug-on: all diff --git a/keyboard/hhkb/matrix.c b/keyboard/hhkb/matrix.c index 3d4b1f6c7..cf4bf9a7d 100644 --- a/keyboard/hhkb/matrix.c +++ b/keyboard/hhkb/matrix.c @@ -73,6 +73,32 @@ static matrix_row_t _matrix1[MATRIX_ROWS]; #define KEY_POWER_ON() #define KEY_POWER_OFF() +#elif defined(__AVR_ATmega32U4__) +// Ports for my designed Alt Controller PCB +// row: PB0-2 +// col: PB3-5,6 +// key: PD7(pull-uped) +// prev: PB7 +#define KEY_INIT() do { \ + DDRB = 0xFF; \ + PORTB = 0x00; \ + DDRD &= ~0x80; \ + PORTD |= 0x80; \ + KEY_UNABLE(); \ + KEY_PREV_OFF(); \ +} while (0) +#define KEY_SELECT(ROW, COL) (PORTB = (PORTB & 0xC0) | \ + (((COL) & 0x07)<<3) | \ + ((ROW) & 0x07)) +#define KEY_ENABLE() (PORTB &= ~(1<<6)) +#define KEY_UNABLE() (PORTB |= (1<<6)) +#define KEY_STATE() (PIND & (1<<7)) +#define KEY_PREV_ON() (PORTB |= (1<<7)) +#define KEY_PREV_OFF() (PORTB &= ~(1<<7)) +#define KEY_POWER_ON() +#define KEY_POWER_OFF() + + #elif defined(__AVR_ATmega328P__) // Ports for V-USB // key: PB0(pull-uped) @@ -130,7 +156,6 @@ uint8_t matrix_cols(void) void matrix_init(void) { #ifdef DEBUG - print_enable = true; debug_enable = true; debug_keyboard = true; #endif @@ -172,7 +197,14 @@ uint8_t matrix_scan(void) KEY_ENABLE(); // Wait for KEY_STATE outputs its value. // 1us was ok on one HHKB, but not worked on another. - _delay_us(10); + // no wait doesn't work on Teensy++ with pro(1us works) + // no wait does work on tmk PCB(8MHz) with pro2 + // 1us wait does work on both of above + // 10us wait does work on Teensy++ with pro + // 10us wait does work on 328p+iwrap with pro + // 10us wait doesn't work on tmk PCB(8MHz) with pro2(very lagged scan) + _delay_us(1); +// _delay_us(10); if (KEY_STATE()) { matrix[row] &= ~(1< Date: Wed, 3 Jul 2013 11:03:59 +0900 Subject: [PATCH 2/5] Tweak tap timing for slow tap on space bar --- keyboard/hhkb/config.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/keyboard/hhkb/config.h b/keyboard/hhkb/config.h index ec51852c1..613e66d13 100644 --- a/keyboard/hhkb/config.h +++ b/keyboard/hhkb/config.h @@ -54,7 +54,7 @@ along with this program. If not, see . #endif /* period of tapping(ms) */ -#define TAPPING_TERM 200 +#define TAPPING_TERM 300 /* tap count needed for toggling a feature */ #define TAPPING_TOGGLE 5 From 0e37dd2ec56114221d8c3eaf98e02b95fa15fa74 Mon Sep 17 00:00:00 2001 From: tmk Date: Mon, 8 Jul 2013 14:38:03 +0900 Subject: [PATCH 3/5] Add power control of keyswitch board and tweak scan wait --- keyboard/hhkb/Makefile.tmk | 4 ++-- keyboard/hhkb/doc/Power.txt | 48 +++++++++++++++++++++++++++++++++++++ keyboard/hhkb/matrix.c | 31 ++++++++++++++++++++---- 3 files changed, 77 insertions(+), 6 deletions(-) create mode 100644 keyboard/hhkb/doc/Power.txt diff --git a/keyboard/hhkb/Makefile.tmk b/keyboard/hhkb/Makefile.tmk index 32dd5796f..d3730081f 100644 --- a/keyboard/hhkb/Makefile.tmk +++ b/keyboard/hhkb/Makefile.tmk @@ -71,7 +71,7 @@ MCU = atmega32u4 # does not *change* the processor frequency - it should merely be updated to # reflect the processor speed set externally so that the code can use accurate # software delays. -F_CPU = 8000000 +F_CPU = 16000000 # @@ -109,7 +109,7 @@ OPT_DEFS += -DBOOTLOADER_SIZE=4096 # Build Options # comment out to disable the options. # -BOOTMAGIC_ENABLE = yes # Virtual DIP switch configuration +#BOOTMAGIC_ENABLE = yes # Virtual DIP switch configuration MOUSEKEY_ENABLE = yes # Mouse keys EXTRAKEY_ENABLE = yes # Audio control and System control CONSOLE_ENABLE = yes # Console for debug diff --git a/keyboard/hhkb/doc/Power.txt b/keyboard/hhkb/doc/Power.txt new file mode 100644 index 000000000..1287053c3 --- /dev/null +++ b/keyboard/hhkb/doc/Power.txt @@ -0,0 +1,48 @@ +HHKB Power consumption +---------------------- + +**Power consumption + board clock/prescaler keyswitch power ctrl current + -------------------------------------------------------------------------- + tmk 16MHz no no 26.4mA + tmk 16MHz pro1 no 45.1mA + tmk 16MHz/2 no no 18.1mA + tmk 16MHz/2 pro1 no 37.3mA + tmk 8MHz no no 18.9mA + tmk 8MHz pro2 no(w/o FET) 32.1mA + tmk 8MHz pro2 no(w FET) 32.1mA withou POWER_ON/FF + tmk 8MHz pro2 no(w FET) 32.6mA with POWR_ON/OFF + tmk 8MHz pro2 15ms(w FET) 21.3mA with POWR_ON/OFF, enumerated but error -32 + tmk 8MHz pro2 60ms(w FET) 13.3mA with POWR_ON/OFF, not enumerated + + gh60 16MHz 25.8mA + gh60 16MHz USB suspend w LED breathing 17.6-29.1mA + gh60 16MHz USB suspend w/o LED 0.2mA(0.231-0.276mA) + Poker 5.6mA + Poker USB suspend 0.3mA(0.301mA) + gh60 16MHz stock firmware by komar 26.8mA + + + HHKB pro2 Over All 139.4mA + HHKB pro2 Controller 115.1mA + HHKB pro1 Controller 25.9mA + + +keyswitch power consumption: +pro1: 45.1-26.4=18.7mA + 37.3-18.1=19.2mA +pro2: 32.1-18.9=13.2mA + + + + + +**Low Freq Crystal or Prescaler? +No advantage of Low Freq Crystal against Prescaled. + +Clock routing +X'tal --+---->Prescaler-------> System Clock + | + +---------------------> USB PLL + +Design Decision: Install 16MHz crystal on board with using clock rescaler. diff --git a/keyboard/hhkb/matrix.c b/keyboard/hhkb/matrix.c index cf4bf9a7d..d0731ef1f 100644 --- a/keyboard/hhkb/matrix.c +++ b/keyboard/hhkb/matrix.c @@ -63,7 +63,7 @@ static matrix_row_t _matrix1[MATRIX_ROWS]; PORTE |= (1<<6); \ } while (0) #define KEY_SELECT(ROW, COL) (PORTB = (PORTB & 0xC0) | \ - (((COL) & 0x07)<<3) | \ + (((COL) & 0x07)<<3) | \ ((ROW) & 0x07)) #define KEY_ENABLE() (PORTB &= ~(1<<6)) #define KEY_UNABLE() (PORTB |= (1<<6)) @@ -79,16 +79,20 @@ static matrix_row_t _matrix1[MATRIX_ROWS]; // col: PB3-5,6 // key: PD7(pull-uped) // prev: PB7 +// power: PD4(L:off/H:on) #define KEY_INIT() do { \ DDRB = 0xFF; \ PORTB = 0x00; \ DDRD &= ~0x80; \ PORTD |= 0x80; \ + /* keyswitch board power on */ \ + DDRD |= (1<<4); \ + PORTD |= (1<<4); \ KEY_UNABLE(); \ KEY_PREV_OFF(); \ } while (0) #define KEY_SELECT(ROW, COL) (PORTB = (PORTB & 0xC0) | \ - (((COL) & 0x07)<<3) | \ + (((COL) & 0x07)<<3) | \ ((ROW) & 0x07)) #define KEY_ENABLE() (PORTB &= ~(1<<6)) #define KEY_UNABLE() (PORTB |= (1<<6)) @@ -97,6 +101,20 @@ static matrix_row_t _matrix1[MATRIX_ROWS]; #define KEY_PREV_OFF() (PORTB &= ~(1<<7)) #define KEY_POWER_ON() #define KEY_POWER_OFF() +/* +#define KEY_POWER_ON() do { \ + KEY_INIT(); \ + PORTD |= (1<<4); \ + _delay_ms(1); \ +} while (0) +#define KEY_POWER_OFF() do { \ + PORTD &= ~(1<<4); \ + DDRB &= ~0xFF; \ + PORTB &= ~0xFF; \ + DDRB &= ~0x80; \ + PORTB &= ~0x80; \ +} while (0) +*/ #elif defined(__AVR_ATmega328P__) @@ -195,16 +213,21 @@ uint8_t matrix_scan(void) uint8_t last = TIMER_RAW; KEY_ENABLE(); + // Wait for KEY_STATE outputs its value. // 1us was ok on one HHKB, but not worked on another. // no wait doesn't work on Teensy++ with pro(1us works) // no wait does work on tmk PCB(8MHz) with pro2 // 1us wait does work on both of above + // 1us wait doesn't work on tmk(16MHz) + // 5us wait does work on tmk(16MHz) + // 5us wait does work on tmk(16MHz/2) + // 5us wait does work on tmk(8MHz) // 10us wait does work on Teensy++ with pro // 10us wait does work on 328p+iwrap with pro // 10us wait doesn't work on tmk PCB(8MHz) with pro2(very lagged scan) - _delay_us(1); -// _delay_us(10); + _delay_us(5); + if (KEY_STATE()) { matrix[row] &= ~(1< Date: Thu, 11 Jul 2013 09:07:02 +0900 Subject: [PATCH 4/5] Add Caps Lock LED on PD6 --- keyboard/hhkb/led.c | 9 ++++++++- 1 file changed, 8 insertions(+), 1 deletion(-) diff --git a/keyboard/hhkb/led.c b/keyboard/hhkb/led.c index 669b6107f..8a08fe27f 100644 --- a/keyboard/hhkb/led.c +++ b/keyboard/hhkb/led.c @@ -15,6 +15,7 @@ You should have received a copy of the GNU General Public License along with this program. If not, see . */ +#include #include "stdint.h" #include "led.h" @@ -22,5 +23,11 @@ along with this program. If not, see . /* HHKB has no LEDs */ void led_set(uint8_t usb_led) { + if (usb_led & (1< Date: Thu, 11 Jul 2013 16:23:53 +0900 Subject: [PATCH 5/5] Fix README and doc --- keyboard/hhkb/README.md | 166 +++++++++++++++++++++---------------- keyboard/hhkb/doc/HHKB.txt | 36 ++++---- 2 files changed, 113 insertions(+), 89 deletions(-) diff --git a/keyboard/hhkb/README.md b/keyboard/hhkb/README.md index f7e96126b..b9e0b534a 100644 --- a/keyboard/hhkb/README.md +++ b/keyboard/hhkb/README.md @@ -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). + +### TMK Alt Controller Board + $ make -f Makefile.tmk + +This programs the controller with [dfu-programmer] if the tool is intalled and configured properly. + + $ make -f Makefile.tmk dfu + +Push reset button and program with [FLIP]. The tool should be intalled and configured properly. + + $ make -f Makefile.tmk flip + +Or you can also program with FLIP GUI. + +[dfu-programmer]: http://dfu-programmer.sourceforge.net/ +[FLIP]: http://www.atmel.com/tools/FLIP.aspx -##Build Firmware -You can choose some combination of MCU and USB protocol stack. +### PJRC Teensy++ +Build with [LUFA] USB stack: -### Teensy++(AVR USB family) with [LUFA] -0. Edit **matrix.c** to use your pin configuration. See doc/HHKB.txt for detail. + $ make -f Makefile.lufa -1. Edit **keymap.c** to use your favoirte keymap. +or with [PJRC] USB stack: -2. Edit **Makefile** if you want to use other `MCU` than Teensy++ 2.0. + $ make -f Makefile.pjrc -3. Build firmware binary file: - `$ make -f Makefile.lufa` +Push reset button and program with [Teensy Loader(command line)]. The tool should be 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.lufa teensy + $ make -f Makefile.pjrc teensy + +Or you can also program with [Teensy Loader(GUI)]. [LUFA]: http://www.fourwalledcubicle.com/LUFA.php -[Teensy Loader]: http://www.pjrc.com/teensy/loader.html +[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 ###AVR Mega with [V-USB] -Follow below if you want to use AVR with V-USB as . +Build: + $ make -f Makefile.vusb -0. Edit **matrix.c** to use your pin configuration. See doc/HHKB.txt for detail. +Program [USBaspLoader] on MCU with AVR programmer like [AVRISPmkII] and tool like [avrdude]. -1. Edit **keymap.c** to use your favoirte keymap. +You can programs with [avrdude] once you have programmed [USBaspLoader] on MCU. + $ make -f Makefile.vusb program -2. Edit **usbconfig.h** to configure V-USB options. - -3. Edit **Makefile.vusb** to define `MCU` and `F_CPU`. - -4. Build firmware binary file: - `$ make -f Makefile.vusb` - -5. Program MCU with AVR programmer like AVRISPmkII. If you already have [USBaspLoader] on MCU just run: - `$ make -f Makefile.vusb program` - -[V-USB]: http://www.obdev.at/products/vusb/index.html -[USBaspLoader]: http://www.obdev.at/products/vusb/usbasploader.html +[AVRISPmkII]: http://www.atmel.com/tools/AVRISPMKII.aspx +[avrdude]: http://www.nongnu.org/avrdude/ -###How to Customize Keymap -Later... -See **keymap.c**. +##How to Customize +See [tmk_keyboard] documents. ##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. -###Teensy++ installation -Angled USB mini B adapter is used to install Teensy++ laterally. - -![Image of Teensy install](hhkb/doc/HHKB_img/teensy_install.jpg) - -Bread baord wires are used to connect Teensy++. - -![Image of Teensy wiring](hhkb/doc/HHKB_img/teensy_wiring.jpg) - -![Image of Connector](hhkb/doc/HHKB_img/connector_contact.jpg) +###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). -###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) - | | - | | - | | - +---------------+ +###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 diff --git a/keyboard/hhkb/doc/HHKB.txt b/keyboard/hhkb/doc/HHKB.txt index f99a07443..422c452c9 100644 --- a/keyboard/hhkb/doc/HHKB.txt +++ b/keyboard/hhkb/doc/HHKB.txt @@ -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)