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137 lines
5.3 KiB
137 lines
5.3 KiB
PS/2 to USB keyboard converter
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==============================
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This firmware converts PS/2 keyboard protocol to USB.
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Demostration build
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------------------
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In this demo build, you can try several layouts,
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mouse keys and USB NKRO.
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Special keys:
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Magic+0: Qwerty with mouse keys(default)
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Magic+1: Qwerty
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Magic+2: Colemak
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Magic+3: Dvorak
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Magic+4: Workman
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Magic+N: toggles NKRO/6KRO(6KRO by default)
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Magic+Esc: sends Power Event
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where Magic=(LShift+RShift) or (LControl+RShift)
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Keybinds:
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Fn0+(hjkl): Mouse key move(vi cursor)
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Fn0+(yuio): Mouse wheel(left,down,up,right)
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Fn0+space: Mouse button1
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Fn0+(mnb): Mouse buttons(1,2,3)
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Fn0+(zxc): Media control(Volup, Voldown, Mute)
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Fn1+(hjkl): Cursor move(vi cursor)
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Fn1+(nm,.): Cursor move(Home,PageDown,PageUp,End)
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Fn2+(esdf): Mouse key move(invert T cursor)
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Fn2+(qwrt): Mouse wheel(left,down,up,right)
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Fn2+space: Mouse button1
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Fn2+(,./): Media control(Volup, Voldown, Mute)
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where Fn0=;, Fn1=/, Fn2=a
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Features
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--------
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Mouse keys
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You can emulates mouse move and button click using keyboard.
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System/Media control
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You can sends Power event, Volume down/up and Mute.
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USB NKRO(actually 120KRO+8Modifiers)
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You can tolggles NKRO/6KRO.(Not tested on Mac.)
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Keymap customization
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You can customize keymaps easily by editing source code.
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Build for Teensy
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----------------
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0. Connect PS/2 keyboard to Teensy by 4 lines(Vcc, GND, Data, Clock).
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1. Define following macros for PS/2 connection in config_pjrc.h:
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PS2_DATA_PORT
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PS2_DATA_PIN
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PS2_DATA_DDR
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PS2_DATA_BIT
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PS2_CLOCK_PORT
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PS2_CLOCK_PIN
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PS2_CLOCK_DDR
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PS2_CLOCK_BIT
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2. Edit Makefile for build options and MCU setting.
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2. make
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3. program Teensy.
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http://www.pjrc.com/teensy/loader.html
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Build for V-USB
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---------------
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0. Build V-USB controller board and connect PS/2 keyboard.
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1. Define macros in config_vusb.h if needed.
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2. Edit Makefile.vusb for build options and MCU setting.
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3. make -f Makefile.vusb
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4. program your V-USB controller.
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V-USB Circuit
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-------------
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+---+ +---------------+
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USB GND | | ATmega168 |
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=== C3 | |
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5V <-------+--------+---|Vcc,AVCC | PS/2
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R1 | | ====
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D- <----+--+-----R2-----|INT0 RXD|------->DATA
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D+ <----|---+----R3-----|INT1 XCK|------->CLOCK
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Z1 Z2 | | ->5V
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GND<----+---+--+--+-----|GND | ->GND
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| | | |
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| C2-+--|XTAL1 |
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| X1 | |
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+--C3-+--|XTAL2 |
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+---------------+
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R1: 1.5K Ohm
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R2,R3: 68 Ohm
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Z1,Z2: Zenner 3.6V
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C1,C2: 22pF
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C3: 0.1uF
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X1: Crystal 20MHz(16MHz/12MHz)
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Keymap
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------
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You can change a keymap by editing code of keymap.c like following.
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How to define the keymap is probably obvious. You can find key
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symbols in usb_keycodes.h.
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If you want to define more than one keymap, see hhkb/keymap.c and
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macway/keymap.c as examples. To define keymap(layer) switching may
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needs a bit of your effort at this time.
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/* Default Layer: plain keymap
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* ,---. ,---------------. ,---------------. ,---------------. ,-----------. ,-----------.
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* |Esc| |F1 |F2 |F3 |F4 | |F5 |F6 |F7 |F8 | |F9 |F10|F11|F12| |PrS|ScL|Pau| |Pwr|Slp|Wak|
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* `---' `---------------' `---------------' `---------------' `-----------' `-----------'
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* ,-----------------------------------------------------------. ,-----------. ,---------------.
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* | `| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| -| =|Backspa| |Ins|Hom|PgU| |NmL| /| *| -|
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* |-----------------------------------------------------------| |-----------| |---------------|
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* |Tab | Q| W| E| R| T| Y| U| I| O| P| [| ]| \| |Del|End|PgD| | 7| 8| 9| |
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* |-----------------------------------------------------------| `-----------' |-----------| +|
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* |CapsLo| A| S| D| F| G| H| J| K| L| ;| '|Return | | 4| 5| 6| |
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* |-----------------------------------------------------------| ,---. |---------------|
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* |Shift | Z| X| C| V| B| N| M| ,| ,| /|Shift | |Up | | 1| 2| 3| |
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* |-----------------------------------------------------------| ,-----------. |-----------|Ent|
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* |Ctrl |Gui |Alt | Space |Alt |Gui |Menu|Ctrl| |Lef|Dow|Rig| | 0| .| |
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* `-----------------------------------------------------------' `-----------' `---------------'
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*/
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KEYMAP(
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ESC, F1, F2, F3, F4, F5, F6, F7, F8, F9, F10, F11, F12, PSCR,SLCK,BRK, PWR, F13, F14,
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GRV, 1, 2, 3, 4, 5, 6, 7, 8, 9, 0, MINS,EQL, BSPC, INS, HOME,PGUP, NLCK,PSLS,PAST,PMNS,
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TAB, Q, W, E, R, T, Y, U, I, O, P, LBRC,RBRC,BSLS, DEL, END, PGDN, P7, P8, P9,
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CAPS,A, S, D, F, G, H, J, K, L, SCLN,QUOT, ENT, P4, P5, P6, PPLS,
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LSFT,Z, X, C, V, B, N, M, COMM,DOT, SLSH, RSFT, UP, P1, P2, P3,
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LCTL,LGUI,LALT, SPC, RALT,RGUI,APP, RCTL, LEFT,DOWN,RGHT, P0, PDOT,PENT
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),
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EOF
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