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	Spellchecking converter README files.
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				@ -71,8 +71,8 @@ Notes
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Many ADB keyboards has no discrimination between right modifier and left one,
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you will always see left control even if you press right control key.
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Apple Extended Keyboard and Apple Extended Keyboard II are the examples.
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Though ADB protocol itsef has the ability of distinction between right and left.
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And most ADB keyboard has no NKRO functionality, though ADB protocol itsef has that. 
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Though ADB protocol itself has the ability of distinction between right and left.
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And most ADB keyboard has no NKRO functionality, though ADB protocol itself has that. 
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See protocol/adb.c for more info.
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EOF
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@ -6,7 +6,7 @@ Target MCU is ATMega32u4 but other USB capable AVR will also work.
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Hardware
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--------
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Connect RX, TX and GND to UART pin of AVR. Note that you may need line drvier/level shfiter like MAX232 to interface high voltage of RS-232C.
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Connect RX, TX and GND to UART pin of AVR. Note that you may need line driver/level shifter like MAX232 to interface high voltage of RS-232C.
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@ -2,7 +2,7 @@ M0110/M0110A to USB keyboard converter
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======================================
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This firmware converts the protocol of Apple Macintosh keyboard **M0110**, **M0110A** and **M0120** into USB. Target of this project is USB AVR controller **ATmega32U4**. Using this converter you can revive these retro keyboards with modern computer.
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Pics of **M0110 + M0120** and **M0110A**.
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Pictures of **M0110 + M0120** and **M0110A**.
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@ -31,7 +31,7 @@ Note that original cable used with Mac is **straight** while phone handset cable
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<http://en.wikipedia.org/wiki/Modular_connector#4P4C>
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Close-up pic of handset cable. You can see one end of plug has reverse color codes against the other. Click to enlarge.
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Close-up picture of handset cable. You can see one end of plug has reverse color codes against the other. Click to enlarge.
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[](http://i.imgur.com/3S9P1mY.jpg?1)
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[Teensy]: http://www.pjrc.com/teensy/
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@ -43,12 +43,12 @@ Close-up pic of handset cable. You can see one end of plug has reverse color cod
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### Pull-up Registor
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You may need pull-up registors on signal lines(`CLOCK`, `DATA`) in particular when you have long or coiled cable. **1k-10k Ohm** will be OK for this purpose. In that case the converter may not read signal from keyboard correctly without pull-up resistors.
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### Pull-up Resistor
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You may need pull-up resistors on signal lines(`CLOCK`, `DATA`) in particular when you have long or coiled cable. **1k-10k Ohm** will be OK for this purpose. In that case the converter may not read signal from keyboard correctly without pull-up resistors.
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Building Frimware
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Building Firmware
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-----------------
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To compile firmware you need AVR GCC. You can edit *Makefile* and *config.h* to change compile options and pin configuration.
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@ -16,7 +16,7 @@ Connector
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     (receptacle)
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Wiring: You can change this with ediging config.h.
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Wiring: You can change this with editing config.h.
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    Pin mini DIN        MCU
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    ----------------------------------
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@ -34,7 +34,7 @@ Wiring: You can change this with ediging config.h.
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Protocol
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--------
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Singnal: Asynchronous, Positive logic, 19200baud, Least bit first
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Signal: Asynchronous, Positive logic, 19200baud, Least bit first
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Frame format: 1-Start bit(Lo), 8-Data bits, Odd-Parity, 1-Stop bit
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This converter uses software method for testing purpose. AVR UART engine will work better.
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@ -12,7 +12,7 @@ Following three methods are used to implement PS/2 signal handling.
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### Interrupt driven(ps2_interrupt.c)
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    Uses pin interrupt to detect falling edge of clock line.
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### USART hardware module(ps2_usart.c)
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    Uses AVR USART engine to recevie PS/2 signal.
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    Uses AVR USART engine to receive PS/2 signal.
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To select method edit Makefile.
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@ -31,7 +31,7 @@ In case of Teensy2.0(ATMega32U4):
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To change pin configuration edit config.h.
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Build Frimware
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Build Firmware
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--------------
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Just run `make`:
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@ -34,11 +34,11 @@ Connector
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Protocol
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--------
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Singnal: Asynchronous, Negative logic, 1200baud, No Flow control
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Signal: Asynchronous, Negative logic, 1200baud, No Flow control
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Frame format: 1-Start bit, 8-Data bits, No-Parity, 1-Stop bit
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    AVR USART engine expects positive logic while Sun keyboard signal is negative.
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    To use AVR UART engine you need exteral inverter in front of RX and TX pin.
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    To use AVR UART engine you need external inverter in front of RX and TX pin.
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    Otherwise you can software serial routine to communicate the keyboard.
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This converter uses software method, you doesn't need any inverter part.
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@ -6,7 +6,7 @@ Hardware requirement
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Arduino Leonardo
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    http://arduino.cc/en/Main/ArduinoBoardLeonardo 
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Circuit@Home USB Host Sheild 2.0
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Circuit@Home USB Host Shield 2.0
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    http://www.circuitsathome.com/products-page/arduino-shields/usb-host-shield-2-0-for-arduino
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@ -12,7 +12,7 @@ X68000 keyboard has ALPS linear switches.
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Hardware
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--------
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Target MCU is ATMega32u4 but other USB capable AVR will also work.
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You can use PJRC Teensy as dev board.
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You can use PJRC Teensy as development board.
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    http://www.pjrc.com/teensy/
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Wiring:
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@ -83,7 +83,7 @@ bit 6-0     following scan code
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Data from computer
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------------------
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- LED contorol ON/OFF(0/1)
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- LED control ON/OFF(0/1)
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    bit 7   1(fixed)
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    bit 6   全角
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    bit 5   ひらがな
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