1 PS/2 to USB keyboard converter
2 ==============================
4 This firmware converts PS/2 keyboard protocol to USB.
9 In this demo build, you can try several layouts,
10 mouse keys and USB NKRO.
13 Magic+0: Qwerty with mouse keys(default)
18 Magic+N: toggles NKRO/6KRO(6KRO by default)
19 Magic+Esc: sends Power Event
20 where Magic=(LShift+RShift) or (LControl+RShift)
23 Fn0+(hjkl): Mouse key move(vi cursor)
24 Fn0+(yuio): Mouse wheel(left,down,up,right)
25 Fn0+space: Mouse button1
26 Fn0+(mnb): Mouse buttons(1,2,3)
27 Fn0+(zxc): Media control(Volup, Voldown, Mute)
28 Fn1+(hjkl): Cursor move(vi cursor)
29 Fn1+(nm,.): Cursor move(Home,PageDown,PageUp,End)
31 Fn2+(esdf): Mouse key move(invert T cursor)
32 Fn2+(qwrt): Mouse wheel(left,down,up,right)
33 Fn2+space: Mouse button1
34 Fn2+(,./): Media control(Volup, Voldown, Mute)
35 where Fn0=;, Fn1=/, Fn2=a
41 You can emulates mouse move and button click using keyboard.
43 You can sends Power event, Volume down/up and Mute.
44 USB NKRO(actually 120KRO+8Modifiers)
45 You can tolggles NKRO/6KRO.(Not tested on Mac.)
47 You can customize keymaps easily by editing source code.
52 0. Connect PS/2 keyboard to Teensy by 4 lines(Vcc, GND, Data, Clock).
53 1. Define following macros for PS/2 connection in config_pjrc.h:
62 2. Edit Makefile for build options and MCU setting.
65 http://www.pjrc.com/teensy/loader.html
70 0. Build V-USB controller board and connect PS/2 keyboard.
71 1. Define macros in config_vusb.h if needed.
72 2. Edit Makefile.vusb for build options and MCU setting.
73 3. make -f Makefile.vusb
74 4. program your V-USB controller.
79 +---+ +---------------+
80 USB GND | | ATmega168 |
82 5V <-------+--------+---|Vcc,AVCC | PS/2
84 D- <----+--+-----R2-----|INT0 RXD|------->DATA
85 D+ <----|---+----R3-----|INT1 XCK|------->CLOCK
87 GND<----+---+--+--+-----|GND | ->GND
98 X1: Crystal 20MHz(16MHz/12MHz)
103 You can change a keymap by editing code of keymap.c like following.
104 How to define the keymap is probably obvious. You can find key
105 symbols in usb_keycodes.h.
106 If you want to define more than one keymap, see hhkb/keymap.c and
107 macway/keymap.c as examples. To define keymap(layer) switching may
108 needs a bit of your effort at this time.
110 /* Default Layer: plain keymap
111 * ,---. ,---------------. ,---------------. ,---------------. ,-----------. ,-----------.
112 * |Esc| |F1 |F2 |F3 |F4 | |F5 |F6 |F7 |F8 | |F9 |F10|F11|F12| |PrS|ScL|Pau| |Pwr|Slp|Wak|
113 * `---' `---------------' `---------------' `---------------' `-----------' `-----------'
114 * ,-----------------------------------------------------------. ,-----------. ,---------------.
115 * | `| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| -| =|Backspa| |Ins|Hom|PgU| |NmL| /| *| -|
116 * |-----------------------------------------------------------| |-----------| |---------------|
117 * |Tab | Q| W| E| R| T| Y| U| I| O| P| [| ]| \| |Del|End|PgD| | 7| 8| 9| |
118 * |-----------------------------------------------------------| `-----------' |-----------| +|
119 * |CapsLo| A| S| D| F| G| H| J| K| L| ;| '|Return | | 4| 5| 6| |
120 * |-----------------------------------------------------------| ,---. |---------------|
121 * |Shift | Z| X| C| V| B| N| M| ,| ,| /|Shift | |Up | | 1| 2| 3| |
122 * |-----------------------------------------------------------| ,-----------. |-----------|Ent|
123 * |Ctrl |Gui |Alt | Space |Alt |Gui |Menu|Ctrl| |Lef|Dow|Rig| | 0| .| |
124 * `-----------------------------------------------------------' `-----------' `---------------'
127 ESC, F1, F2, F3, F4, F5, F6, F7, F8, F9, F10, F11, F12, PSCR,SLCK,BRK, PWR, F13, F14,
128 GRV, 1, 2, 3, 4, 5, 6, 7, 8, 9, 0, MINS,EQL, BSPC, INS, HOME,PGUP, NLCK,PSLS,PAST,PMNS,
129 TAB, Q, W, E, R, T, Y, U, I, O, P, LBRC,RBRC,BSLS, DEL, END, PGDN, P7, P8, P9,
130 CAPS,A, S, D, F, G, H, J, K, L, SCLN,QUOT, ENT, P4, P5, P6, PPLS,
131 LSFT,Z, X, C, V, B, N, M, COMM,DOT, SLSH, RSFT, UP, P1, P2, P3,
132 LCTL,LGUI,LALT, SPC, RALT,RGUI,APP, RCTL, LEFT,DOWN,RGHT, P0, PDOT,PENT