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diff --git a/converter/adb_usb/README.md b/converter/adb_usb/README.md new file mode 100644 index 000000000..21ad318c1 --- /dev/null +++ b/converter/adb_usb/README.md @@ -0,0 +1,96 @@ +ADB to USB keyboard converter +============================= +This firmware converts ADB keyboard protocol to USB. +You can use PJRC Teensy for this converter, though, other USB AVR(ATMega32U4, AT90USB64/128 or etc) should work. +But binary size is about 10KB or more it doesn't fit into 8K flash like ATMega8U2. + +Discuss: http://geekhack.org/showwiki.php?title=Island:14290 + + +Wiring +------ +0. Connect ADB keyboard to Teensy by 3 lines(Vcc, GND, Data). By default Data line uses port PD0. + This converter uses AVR's internal pull-up, but it seems to be too weak, in particular when you want to use a long or coiled cable. + The external pull-up resistor(1K-10K Ohm) on Data is strongly recommended. +1. Define following macros for ADB connection in config.h if you use other than port PD0. + ADB_PORT, ADB_PIN, ADB_DDR, ADB_DATA_BIT +2. make +3. program Teensy + + +Build +----- +Just make + + $ make clean + $ make + +If your keyboard is ISO layout + + $ make KEYMAP=iso + + +LOCKING CAPSLOCK +---------------- +Many of old ADB keyboards have mechanical push-lock switch for Capslock key and this converter supports the locking Capslock key by default. See README in top directory for more detail about this feature. + +Also you may want to remove locking pin from the push-lock switch to use capslock as a normal momentary switch. +http://www.youtube.com/watch?v=9wqnt2mGJ2Y + + +Keymap +------ +You can change a keymap by editing code of keymap.c like following. +This is a keymap for AEK, however, also used for other keyboards. +How to define the keymap is probably obvious. You can find key symbols in keycode.h. +If you want to define some keymaps than just one, see hhkb/keymap.c and +macway/keymap.c as examples. Keymap(layer) switching may needs a bit of +effort at this time. + + /* Default Layer: plain keymap + * ,---. ,---------------. ,---------------. ,---------------. ,-----------. ,---. + * |Esc| |F1 |F2 |F3 |F4 | |F5 |F6 |F7 |F8 | |F9 |F10|F11|F12| |PrS|ScL|Pau| |Pwr| + * `---' `---------------' `---------------' `---------------' `-----------' `---' + * ,-----------------------------------------------------------. ,-----------. ,---------------. + * | `| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| -| =|Backspa| |Ins|Hom|PgU| |NmL| =| /| *| + * |-----------------------------------------------------------| |-----------| |---------------| + * |Tab | Q| W| E| R| T| Y| U| I| O| P| [| ]| \| |Del|End|PgD| | 7| 8| 9| -| + * |-----------------------------------------------------------| `-----------' |---------------| + * |CapsLo| A| S| D| F| G| H| J| K| L| ;| '|Return | | 4| 5| 6| +| + * |-----------------------------------------------------------| ,---. |---------------| + * |Shift | Z| X| C| V| B| N| M| ,| ,| /|Shift | |Up | | 1| 2| 3| | + * |-----------------------------------------------------------| ,-----------. |-----------|Ent| + * |Ctrl |Alt |Gui | Space |Gui |Alt |Ctrl | |Lef|Dow|Rig| | 0| .| | + * `-----------------------------------------------------------' `-----------' `---------------' + */ + KEYMAP( + ESC, F1, F2, F3, F4, F5, F6, F7, F8, F9, F10, F11, F12, PSCR,SLCK,BRK, PWR, + GRV, 1, 2, 3, 4, 5, 6, 7, 8, 9, 0, MINS,EQL, BSPC, INS, HOME,PGUP, NLCK,EQL, PSLS,PAST, + TAB, Q, W, E, R, T, Y, U, I, O, P, LBRC,RBRC,BSLS, DEL, END, PGDN, P7, P8, P9, PMNS, + LCAP,A, S, D, F, G, H, J, K, L, SCLN,QUOT, ENT, P4, P5, P6, PPLS, + LSFT,Z, X, C, V, B, N, M, COMM,DOT, SLSH, RSFT, UP, P1, P2, P3, + LCTL,LGUI,LALT, SPC, LEFT,DOWN,RGHT, P0, PDOT,PENT + ), + + +Magic command +------------- +To get help press `h` holding Magic key. Magic key is `Power key`. + + +Notes +----- +Not-extended ADB keyboards have no discrimination between right modifier and left one, +you will always see left control even if you press right control key. +Apple Extended Keyboard and Apple Extended Keyboard II can discriminate both side +modifiers except for GUI key(Windows/Command). + +And most ADB keyboard has no diodes in its matrix so they are not NKRO, +though ADB protocol itself supports it. See protocol/adb.c for more info. + +If keyboard has ISO layout you need to use ISO keymap with `make KEYMAP=iso`. With ANSI +keymap you will suffer from swapped keys problem. + +https://github.com/tmk/tmk_keyboard/issues/35 + +EOF |