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qmk_firmware/converter/ps2_usb
tmk afb0846208
Made directories for keyboard and converter projects.
13 years ago
..
Makefile Made directories for keyboard and converter projects. 13 years ago
Makefile.pjrc_usart Made directories for keyboard and converter projects. 13 years ago
Makefile.vusb Made directories for keyboard and converter projects. 13 years ago
README Made directories for keyboard and converter projects. 13 years ago
README.vusb Made directories for keyboard and converter projects. 13 years ago
config_pjrc.h Made directories for keyboard and converter projects. 13 years ago
config_pjrc_usart.h Made directories for keyboard and converter projects. 13 years ago
config_vusb.h Made directories for keyboard and converter projects. 13 years ago
keymap.c Made directories for keyboard and converter projects. 13 years ago
led.c Made directories for keyboard and converter projects. 13 years ago
matrix.c Made directories for keyboard and converter projects. 13 years ago
usbconfig.h Made directories for keyboard and converter projects. 13 years ago

README

PS/2 to USB keyboard converter

==============================
This firmware converts PS/2 keyboard protocol to USB and for now supports only Scan Code Set 2.
This will works on USB AVR(ATMega32U4, AT90USB) or V-USB.


Features
--------
Mouse keys
You can emulates mouse move and button click using keyboard.
System/Media control
You can sends Power event, Volume down/up and Mute.
USB NKRO(actually 120KRO+8Modifiers)
You can tolggles NKRO feature.
Keymap customization
You can customize keymaps easily by editing source code. See keymap.c.


PS/2 signal handling implementations
------------------------------------
Following three methods are used to implement PS/2 signal handling.
a. Simple and stupid wait & read loop(intensive use of cycles)
This is implemented with (expected) portable C code for reference. See ps2.c.
b. Interrupt driven
See ps2_intr.c
c. Using USART hardware module(no cycle needed)
This uses AVR USART function to recevie PS/2 signal and be used in V-USB converter.
See ps2_usart.c.


Build Converter
---------------
Connect PS/2 keyboard into Teensy with 4 lines(Vcc, GND, Data, Clock).
For a. Simple and stupid and b. Interrupt implementaion:
By default Clock is on PF0 and Data on PF1.
You can change this pin configuration by editing config_pjrc.h.
In this photo Vcc is yellow, GND is green, Data is red and Clock is black.
http://img17.imageshack.us/img17/7243/201101181933.jpg
For c. USART implementation:
In case of Teensny(ATMega32u4) CLock is on PD5 and Data on PD2.


Build Frimware
--------------
1. Edit Makefile for build options and MCU setting.
Use 'atmega32u4' for Teensy 2.0 or 'at90usb1286' for Teensy++ 2.0.
2. make
Just type 'make' in a terminal.
Use '-f Makefile.pjrc_intr' option to use b. Interrupt.
Use '-f Makefile.pjrc_usart' option to use c. USART.
Use '-f Makefile.vusb' option to build V-USB converter.
3. program with Teensy Loader.
http://www.pjrc.com/teensy/loader.html


Demonstration of Features
-------------------------
In default configuration, you can try several keymaps, mousekeys and USB NKRO.
Use following magic key combinations to enable some features.

keymaps and NKRO:
Magic+0: Qwerty with mousekeys(default)
Magic+1: Qwerty without mousekeys
Magic+2: Colemak
Magic+3: Dvorak
Magic+4: Workman
Magic+N: toggles NKRO/6KRO(6KRO by default)
Magic+Esc: sends Power Event(Power button)

where Magic=(LShift+RShift) or (LControl+RShift)

Fn layer function:
Fn0+(hjkl): Mousekey move(vi cursor like)
Fn0+(yuio): Mouse wheel(left,down,up,right)
Fn0+space: Mouse left button
Fn0+(mnb): Mouse buttons(m=left, n=right, b=middle)
Fn0+(zxc): Media control(Volup, Voldown, Mute)
Fn1+(hjkl): Cursor move(vi cursor like)
Fn1+(nm,.): Cursor move(Home,PageDown,PageUp,End)

where Fn0=;, Fn1=/


Keymap
------
You can change a keymap by editing code of keymap.c like following.
How to define the keymap is probably obvious. You can find key symbols in usb_keycodes.h.
To define keymap layer switching may needs a bit of your 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|Slp|Wak|
* `---' `---------------' `---------------' `---------------' `-----------' `-----------'
* ,-----------------------------------------------------------. ,-----------. ,---------------.
* | `| 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 |Gui |Alt | Space |Alt |Gui |Menu|Ctrl| |Lef|Dow|Rig| | 0| .| |
* `-----------------------------------------------------------' `-----------' `---------------'
*/
KEYMAP(
ESC, F1, F2, F3, F4, F5, F6, F7, F8, F9, F10, F11, F12, PSCR,SLCK,BRK, PWR, F13, F14,
GRV, 1, 2, 3, 4, 5, 6, 7, 8, 9, 0, MINS,EQL, BSPC, INS, HOME,PGUP, NLCK,PSLS,PAST,PMNS,
TAB, Q, W, E, R, T, Y, U, I, O, P, LBRC,RBRC,BSLS, DEL, END, PGDN, P7, P8, P9,
CAPS,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, RALT,RGUI,APP, RCTL, LEFT,DOWN,RGHT, P0, PDOT,PENT
),


EOF