From 208f6d7f9146782d4c437aedf75a0a7043db7765 Mon Sep 17 00:00:00 2001 From: tmk Date: Thu, 1 Nov 2012 14:24:21 +0900 Subject: [PATCH] Improve documentation --- keyboard/hhkb/README | 151 ------------------------------------- keyboard/hhkb/README.md | 135 +++++++++++++++++++++++++++++++++ keyboard/hhkb/doc/HHKB.txt | 116 +++++++++------------------- keyboard/hhkb/iwrap.txt | 32 ++++++++ 4 files changed, 201 insertions(+), 233 deletions(-) delete mode 100644 keyboard/hhkb/README create mode 100644 keyboard/hhkb/README.md create mode 100644 keyboard/hhkb/iwrap.txt diff --git a/keyboard/hhkb/README b/keyboard/hhkb/README deleted file mode 100644 index 65f7dcab..00000000 --- a/keyboard/hhkb/README +++ /dev/null @@ -1,151 +0,0 @@ -Alternative Controller for HHKB -=============================== - -Feature -------- -- Mouse Keys -- NKRO on USB(PJRC Tennsy only) -- Keymap Layers - - -Customize Keymap ----------------- -see keymap.c. - - - -Build -===== -PJRC Teensy ------------ -0. Edit matrix.c. - adjust scan code to your pin configuration.(see doc/HHKB.txt for pinouts) -1. Define macros in config_pjrc.h.(Optional) - VENDOR_ID, PRODUCT_ID and string descriptor. - IS_COMMAND -2. Edit Makefile for MCU setting and build options. - MCU, F_CPU - MOUSEKEY_ENABLE, EXTRAKEY_ENABLE, NKRO_ENABLE -3. Build hex file. - $ make -f Makefile.pjrc -4. Program MCU. - $ make -f Makefile.pjrc program - - -V-USB ------ -0. Edit matrix.c and usbconfig.h. - adjust scan code to your pin configuration.(see doc/HHKB.txt for pinouts) - define macros for V-USB in usbconfig.h. -1. Define macros in config_vusb.h.(Optional) - IS_COMMAND -2. Edit Makefile.vusb for MCU setting and build options. - MCU, F_CPU - MOUSEKEY_ENABLE, EXTRAKEY_ENABLE -3. Build hex file. - $ make -f Makefile.vusb -4. Program MCU. - $ make -f Makefile.vusb program - - Using a bootloader to program for convenience is recommended. - Once program this V-USB bootloader at first, you can program MCU without - extra programmer. You should have reset switch to start up as bootloader - mode in this case. - USBaspLoader: - http://www.obdev.at/products/vusb/usbasploader.html - - -iWRAP ------ -0. Edit matrix.c and usbconfig.h. - adjust scan code to your pin configuration.(see doc/HHKB.txt for pinouts) - define macros for V-USB in usbconfig.h. -1. Define macros in config_iwrap.h.(Optional) - IS_COMMAND -2. Edit Makefile.iwrap for MCU setting and build options. - MCU, F_CPU - MOUSEKEY_ENABLE, EXTRAKEY_ENABLE -3. Build hex file. - $ make -f Makefile.iwrap -4. Program MCU. - $ make -f Makefile.iwrap program - - - -Hardware -======== -PJRC Teensy ------------ - +---------------+ - | Teensy++ | - | | - | | HHKB - | | ~~~~ - | PB0-2|------->ROW(6-8) - | PB3-5|------->COL(9-11) - | PB6|------->ENABLE(12) - | PE6|<-------KEY(4) - | PE7|------->PREV(5) - | | - | | - | | - +---------------+ - - -V-USB ------ - +---+ +---------------+ -USB GND | | ATmega168 | -~~~ 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) - | | - GND+-C2--+--|XTAL1 RXD|------->Debug Console - X1 | TXD|<-------Debug Console - GND+-C3--+--|XTAL2 RST|---SW--+GND - +---------------+ -R1: 1.5K Ohm -R2,R3: 68 Ohm -Z1,Z2: Zener 3.6V -C1,C2: 22pF -C3: 0.1uF -X1: Crystal 20MHz(16MHz/12MHz) -SW: Push Switch(Optional for bootloader) - - -iWRAP ------ - +---------------+ WT12 - 5V | ATmega168 | 5V/3.3V~~~~ - +-----+---|Vcc,AVCC PC4|---/--->iWRAP(RxD) -USB | C3 | PC5|<--/----iWRAP(TxD) -~~~ | + | | -5V <--BATT + GND | | 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) - | | - GND+-C2--+--|XTAL1 RXD|------->Debug Console - X1 | TXD|<-------Debug Console - GND+-C3--+--|XTAL2 RST|---SW--+GND - +---------------+ - -R1: 1.5K Ohm -R2,R3: 68 Ohm -Z1,Z2: Zener 3.6V -C1,C2: 22pF -C3: 0.1uF -X1: Crystal 12MHz -SW: Push Switch(Optional) -BATT: Li-Po Battery, Battery Charger and Voltage Regulator(5V and 3.3V). - - -EOF diff --git a/keyboard/hhkb/README.md b/keyboard/hhkb/README.md new file mode 100644 index 00000000..cd3a43eb --- /dev/null +++ b/keyboard/hhkb/README.md @@ -0,0 +1,135 @@ +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. + +[HHKB]: http://www.pfu.fujitsu.com/hhkeyboard/ +[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 + +###Pros +* 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 + +##DISCLAIMER +I'm not a professional of electronics or MCU programming. This may damage your HHKB. +And my English writing is poor, I'm not sure I can convey my notions accurately. + + + + + + +##Build Firmware +You can choose some combination of MCU and USB protocol stack. + +### Teensy++(AVR USB family) with [LUFA] +0. Edit **matrix.c** to use your pin configuration. See doc/HHKB.txt for detail. + +1. Edit **keymap.c** to use your favoirte keymap. + +2. Edit **Makefile** if you want to use other `MCU` than Teensy++ 2.0. + +3. Build firmware binary file: + `$ make -f Makefile.lufa` + +4. Program MCU with PJRC [Teensy Loader] tool. If you install command line version of the loader just run: + `$ make -f Makefile.lufa teensy` + +[LUFA]: http://www.fourwalledcubicle.com/LUFA.php +[Teensy Loader]: http://www.pjrc.com/teensy/loader.html + + +###AVR Mega with [V-USB] +Follow below if you want to use AVR with V-USB as . + +0. Edit **matrix.c** to use your pin configuration. See doc/HHKB.txt for detail. + +1. Edit **keymap.c** to use your favoirte keymap. + +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 + + +###How to Customize Keymap +Later... +See **keymap.c**. + + +##Hardware + +###Teensy++ installation +Angled USB mini B adapter is used to install Teensy++ laterally. +![doc/HHKB_img/teensy_install.jpg] + +Bread baord wires are used to connect Teensy++. +![doc/HHKB_img/teensy_wiring.jpg] +![doc/HHKB_img/connector_contact.jpg] + + +###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) + | | + | | + | | + +---------------+ + + +###V-USB circuit + +---+ +---------------+ + USB GND | | ATmega168 | + ~~~ 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) + | | + GND+-C2--+--|XTAL1 RXD|------->Debug Console + X1 | TXD|<-------Debug Console + GND+-C3--+--|XTAL2 RST|---SW--+GND + +---------------+ + R1: 1.5K Ohm + R2,R3: 68 Ohm + Z1,Z2: Zener 3.6V + C1,C2: 22pF + C3: 0.1uF + X1: Crystal 20MHz(16MHz/12MHz) + SW: Push Switch(Optional for bootloader) diff --git a/keyboard/hhkb/doc/HHKB.txt b/keyboard/hhkb/doc/HHKB.txt index ace931de..f99a0744 100644 --- a/keyboard/hhkb/doc/HHKB.txt +++ b/keyboard/hhkb/doc/HHKB.txt @@ -1,67 +1,16 @@ -Alternative Controller for HHKB pro -=================================== -I want to add vi cursor and mouse keys to HHKB. Original HHKB controller is not programmable and -firmware source code is not open. So, customizing HHKB needs to replace original controller with programmable one. -I used Teensy++ as alternative controller. Though a Teensy has enough ports to drive HHKB, -Teensy++ has clean pinout and it makes programing and wiring easier. +Internal of HHKB pro +===================== +HHKB pro has MCU and some chips on separate two PCBs. -This is just a proof of concept for replacing controller of HHKB, not a complete firmware. - -My prototype firmware source tree is here: - github(http://github.com/tmk/tmk_keyboard) -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/) - - -Pros: - * without pattern cutting, case mod and soldering - * can keep original controller intact - * can change HHKB behaviour as you like(by C programming) - -Cons: - * void your warranty - * unavailability of Teensy++/Teensy(because of PS3 cracking boom?) - -Features: - * customized keymap - * more keymap layers - * mouse keys for minimum mouse operation(never comfortable for normal use) - * and more...(in the future) - -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. - - -Teensy++ installation ---------------------- -Angled USB mini B adapter is used to install Teensy++ laterally. -(teensy_install.jpg) - -Bread baord wires are used to connect Teensy++. -(teensy_wiring.jpg) -(connector_contact.jpg) - - -HHKB internal -------------- -HHKB pro has some chips on separate two PCBs. - -Controller PCB: +Controller PCB +-------------- M38K07M4 Renesas MCU with USB function http://documentation.renesas.com/eng/products/mpumcu/rej03b0192_38k0ds.pdf (HHKB_controller.jpg) -Keyswitch PCB: +Keyswitch PCB +------------- HC4051 Analog Multiplexer: select a row line. http://www.alldatasheet.com/datasheet-pdf/pdf/203989/KODENSHI/KK74HC4051A.html LS145 BCD Decoder: select a column line. @@ -76,13 +25,16 @@ Keyswitch PCB: (HHKB_TP1684.jpg) -Two PCBs are connected by 15 lines. Vcc and GND use 3 lines each, other 9 lines are for keyboard signaling. +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) 5V - 2 Vcc(5V) - 3 Vcc(5V) + 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 @@ -92,9 +44,11 @@ Two PCBs are connected by 15 lines. Vcc and GND use 3 lines each, other 9 lines 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 - 14 GND - 15 GND GND + 13 GND GND + 14 GND GND + 15 GND Not exist on Pro2 GND + + NOTE: guessing pin5(KEY_PREV) may work for hysteresis of capacitive sensing. (HHKB_connector.jpg) @@ -103,19 +57,20 @@ Keyswitch matrix ---------------- 60 keyswitches in 8*8 matrix. It is ghost-free and bounce-free. - COL 0 1 2 3 4 5 6 7 -ROW --------------------------------------------------------------- - 0| 2 q w s a z x c - 1| 3 4 r e d f v b - 2| 5 6 y t g h n _NONE_ - 3| 1 Esc Tab Control LShift LAlt LMeta Space - 4| 7 8 u i k j m _NONE_ - 5| \ ` Delete Return Fn RShift RAlt RMeta - 6| 9 0 o p ; l , _NONE_ - 7| - + ] [ ' / . _NONE_ + COL 0 1 2 3 4 5 6 7 + ROW --------------------------------------------------------------- + 0| 2 q w s a z x c + 1| 3 4 r e d f v b + 2| 5 6 y t g h n _NONE_ + 3| 1 Esc Tab Control LShift LAlt LMeta Space + 4| 7 8 u i k j m _NONE_ + 5| \ ` Delete Return Fn RShift RAlt RMeta + 6| 9 0 o p ; l , _NONE_ + 7| - + ] [ ' / . _NONE_ Matrix diagram: + +-------------------------+-+-+-+-+-+-+-+ Vcc |bias control? - - - - - - - - --- | 3.9K*8 R R R R R R R R | @@ -141,7 +96,8 @@ Matrix diagram: to controller -Signals charts: +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. @@ -157,7 +113,8 @@ Signals charts: (HHKB_chart2.jpg) -Matrix scan pseudo code: +Matrix scan pseudo code +----------------------- for (row: 0-7) { SELECT_ROW(row); // set HC4051(A,B,C) @@ -190,10 +147,5 @@ Matrix scan pseudo code: } -Keymap layers -------------- -Followings are added layers with additional Fn keys. - -see keymap.c EOF diff --git a/keyboard/hhkb/iwrap.txt b/keyboard/hhkb/iwrap.txt new file mode 100644 index 00000000..20a2420a --- /dev/null +++ b/keyboard/hhkb/iwrap.txt @@ -0,0 +1,32 @@ + +iWRAP +----- + +---------------+ WT12 + 5V | ATmega168 | 5V/3.3V~~~~ + +-----+---|Vcc,AVCC PC4|---/--->iWRAP(RxD) +USB | C3 | PC5|<--/----iWRAP(TxD) +~~~ | + | | +5V <--BATT + GND | | 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) + | | + GND+-C2--+--|XTAL1 RXD|------->Debug Console + X1 | TXD|<-------Debug Console + GND+-C3--+--|XTAL2 RST|---SW--+GND + +---------------+ + +R1: 1.5K Ohm +R2,R3: 68 Ohm +Z1,Z2: Zener 3.6V +C1,C2: 22pF +C3: 0.1uF +X1: Crystal 12MHz +SW: Push Switch(Optional) +BATT: Li-Po Battery, Battery Charger and Voltage Regulator(5V and 3.3V). + + +