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PS/2 to USB keyboard converter
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==============================
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This firmware converts PS/2 keyboard protocol to USB and for now supports only Scan Code Set 2.
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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 feature.
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Keymap customization
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You can customize keymaps easily by editing source code. See keymap.c.
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Build Converter
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---------------
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0. Connect PS/2 keyboard into Teensy with 4 lines(Vcc, GND, Data, Clock).
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By default Clock is on PF0 and Data on PF1.
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You can change this pin configuration by editing config_pjrc.h.
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In this photo Vcc is yellow, GND is green, Data is red and Clock is black.
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http://img17.imageshack.us/img17/7243/201101181933.jpg
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Build Frimware
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--------------
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1. Edit Makefile for build options and MCU setting.
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Use 'atmega32u4' for Teensy 2.0 or 'at90usb1286' for Teensy++ 2.0.
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2. make
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Just type 'make' in a terminal.
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3. program with Teensy Loader.
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http://www.pjrc.com/teensy/loader.html
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Demonstration of Features
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-------------------------
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In default configuration, you can try several keymaps, mousekeys and USB NKRO.
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Use following magic key combinations to enable some features.
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keymaps and NKRO:
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Magic+0: Qwerty with mousekeys(default)
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Magic+1: Qwerty without mousekeys
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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(Power button)
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where Magic=(LShift+RShift) or (LControl+RShift)
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Fn layer function:
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Fn0+(hjkl): Mousekey move(vi cursor like)
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Fn0+(yuio): Mouse wheel(left,down,up,right)
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Fn0+space: Mouse left button
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Fn0+(mnb): Mouse buttons(m=left, n=right, b=middle)
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Fn0+(zxc): Media control(Volup, Voldown, Mute)
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Fn1+(hjkl): Cursor move(vi cursor like)
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Fn1+(nm,.): Cursor move(Home,PageDown,PageUp,End)
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where Fn0=;, Fn1=/
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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 symbols in usb_keycodes.h.
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To define keymap layer switching may 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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Multimedia keys
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---------------
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Following lists PS/2 special keys supported by Windows.
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http://msdn.microsoft.com/en-us/windows/hardware/gg463372.aspx
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Key PS/2(Set2) HID
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---------------------------------------------------
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System Power E0 37 01 0081
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System Sleep E0 3F 01 0082
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System Wake E0 5E 01 0083
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System Mute E0 23 0C 00E2
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Volume Up E0 32 0C 00E9
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Volume Down E0 21 0C 00EA
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Scan Next Track E0 4D 0C 00B5
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Scan Previous Track E0 15 0C 00B6
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Stop E0 3B 0C 00B7
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Play/Pause E0 34 0C 00CD
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Media Select E0 50 0C 0183
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Mail E0 48 0C 018A
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Calculator E0 2B 0C 0192
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My Computer E0 40 0C 0194
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WWW Search E0 10 0C 0221
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WWW Home E0 3A 0C 0223
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WWW Back E0 38 0C 0224
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WWW Forward E0 30 0C 0225
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WWW Stop E0 28 0C 0226
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WWW Refresh E0 20 0C 0227
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WWW Favorites E0 18 0C 022A
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EOF
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