ps2_usb/README

   1 PS/2 to USB keyboard converter
   2 ==============================
   3
   4 This firmware converts PS/2 keyboard protocol to USB.
   5
   6
   7 Demostration build
   8 ------------------
   9 In this demo build, you can try several layouts,
  10 mouse keys and USB NKRO.
  11
  12 Special keys:
  13     Magic+0:    Qwerty with mouse keys(default)
  14     Magic+1:    Qwerty
  15     Magic+2:    Colemak
  16     Magic+3:    Dvorak
  17     Magic+4:    Workman
  18     Magic+N:    toggles NKRO/6KRO(6KRO by default)
  19     Magic+Esc:  sends Power Event
  20     where Magic=(LShift+RShift) or (LControl+RShift)
  21
  22 Keybinds:
  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)
  30
  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
  36
  37
  38 Features
  39 --------
  40 Mouse keys
  41     You can emulates mouse move and button click using keyboard.
  42 System/Media control
  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.)
  46 Keymap customization
  47     You can customize keymaps easily by editing source code.
  48
  49
  50 Build for Teensy
  51 ----------------
  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:
  54    PS2_DATA_PORT
  55    PS2_DATA_PIN
  56    PS2_DATA_DDR
  57    PS2_DATA_BIT
  58    PS2_CLOCK_PORT
  59    PS2_CLOCK_PIN
  60    PS2_CLOCK_DDR
  61    PS2_CLOCK_BIT
  62 2. Edit Makefile for build options and MCU setting.
  63 2. make
  64 3. program Teensy.
  65    http://www.pjrc.com/teensy/loader.html
  66
  67
  68 Build for V-USB
  69 ---------------
  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.
  75
  76
  77 V-USB Circuit
  78 -------------
  79                 +---+   +---------------+
  80 USB            GND  |   |   ATmega168   |
  81 ===                 C3  |               |
  82 5V <-------+--------+---|Vcc,AVCC       |        PS/2
  83            R1           |               |        ====
  84 D- <----+--+-----R2-----|INT1        RXD|------->DATA
  85 D+ <----|---+----R3-----|INT0        XCK|------->CLOCK
  86         Z1  Z2          |               |      ->5V
  87 GND<----+---+--+--+-----|GND            |      ->GND
  88                |  |     |               |
  89                |  C2-+--|XTAL1          |
  90                |     X1 |               |
  91                +--C3-+--|XTAL2          |
  92                         +---------------+
  93 R1:     1.5K Ohm
  94 R2,R3:  68 Ohm
  95 Z1,Z2:  Zenner 3.6V
  96 C1,C2:  22pF
  97 C3:     0.1uF
  98 X1:     Crystal 20MHz(16MHz/12MHz)
  99
 100
 101 Keymap
 102 ------
 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.
 109
 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      * `-----------------------------------------------------------' `-----------' `---------------'
 125      */
 126     KEYMAP(
 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
 133     ),
 134
 135
 136 Multimedia keys
 137 ---------------
 138 Following lists PS/2 special keys supported by Windows.
 139 http://msdn.microsoft.com/en-us/windows/hardware/gg463372.aspx
 140
 141 Key                         PS/2(Set2)      HID
 142 ---------------------------------------------------
 143 System Power                E0 37           01 0081
 144 System Sleep                E0 3F           01 0082
 145 System Wake                 E0 5E           01 0083
 146 System Mute                 E0 23           0C 00E2
 147 Volume Up                   E0 32           0C 00E9
 148 Volume Down                 E0 21           0C 00EA
 149 Scan Next Track             E0 4D           0C 00B5
 150 Scan Previous Track         E0 15           0C 00B6
 151 Stop                        E0 3B           0C 00B7
 152 Play/Pause                  E0 34           0C 00CD
 153 Media Select                E0 50           0C 0183
 154 Mail                        E0 48           0C 018A
 155 Calculator                  E0 2B           0C 0192
 156 My Computer                 E0 40           0C 0194
 157 WWW Search                  E0 10           0C 0221
 158 WWW Home                    E0 3A           0C 0223
 159 WWW Back                    E0 38           0C 0224
 160 WWW Forward                 E0 30           0C 0225
 161 WWW Stop                    E0 28           0C 0226
 162 WWW Refresh                 E0 20           0C 0227
 163 WWW Favorites               E0 18           0C 022A
 164
 165
 166 EOF