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authortmk <nobody@nowhere>2011-12-05 02:53:15 +0900
committertmk <nobody@nowhere>2011-12-05 16:14:45 +0900
commit3f9de37310f670e6289738c628747e6787d42b22 (patch)
treeb4e7ab8df3cb59ba388cd60f7c8a698a4e9ce08e /ps2_usb/README.vusb
parent6284b147c23aa32a9e65138b1eb8ee908ece4941 (diff)
Added ISO/JIS keyboard support.
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diff --git a/ps2_usb/README.vusb b/ps2_usb/README.vusb
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+V-USB Support
+=============
+You can also use this converter on ATmega(168/328) with V-USB instead of Teensy.
+The converter on V-USB lacks some features for now: USB NKRO and System/Media control.
+
+To build a firmware use Makefile.vusb instead of Makefile.
+
+
+Circuit
+-------
+ +---+ +---------------+
+USB GND | | ATmega168 |
+=== C3 | |
+5V <-------+--------+---|Vcc,AVCC | PS/2
+ R1 | | ====
+D- <----+--+-----R2-----|INT1 RXD|------->DATA
+D+ <----|---+----R3-----|INT0 XCK|------->CLOCK
+ Z1 Z2 | | ->5V
+GND<----+---+--+--+-----|GND | ->GND
+ | | | |
+ | C2-+--|XTAL1 |
+ | X1 | |
+ +--C3-+--|XTAL2 |
+ +---------------+
+R1: 1.5K Ohm
+R2,R3: 68 Ohm
+Z1,Z2: Zenner 3.6V
+C1,C2: 22pF
+C3: 0.1uF
+X1: Crystal 20MHz(16MHz/12MHz)
+
+
+This is my V-USB converter on breadboard.
+[IMG]http://i.imgur.com/8jJCZl.jpg[/IMG]
+
+
+EOF