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- PC98 to USB keyboard protocol converter
- =======================================
- Target MCU is ATMega32u4 but other USB capable AVR will also work.
-
-
- Connector
- ---------
-
- 8Pin mini DIN
- ___ ___
- / |_| \
- / 8 7 6 \
- | 5 4 3 |
- \_ 2 1 _/
- \_____/
- (receptacle)
-
-
- Wiring: You can change this with editing config.h.
-
- Pin mini DIN MCU
- ----------------------------------
- 1 ~RST(TXD) PD3
- 2 GND GND
- 3 ~RDY PD4
- 4 RXD PD2
- 5 ~RTY PD5
- 6 NC
- 7 NC
- 8 5V VCC
-
-
-
-
- Protocol
- --------
- Signal: Asynchronous, Positive logic, 19200baud, Least bit first
- Frame format: 1-Start bit(Lo), 8-Data bits, Odd-Parity, 1-Stop bit
-
-
-
- Build Firmware
- --------------
- Just use 'make'
-
- $ cd pc98_usb
- $ make
-
- Then, load the binary to MCU with your favorite programmer.
-
-
-
- Other PC98 converter projects and resource
- ------------------------------------------
- PC98 to USB
- http://davy.nyacom.net/kbd98usb/
-
- PC98 to PS/2
- http://www.tsp.ne.jp/~sawada/mago/c_gka98at.htm
- http://www.tsp.ne.jp/~sawada/mago/src/gka98at.asm
-
- PC98 keyboard commands
- http://www.webtech.co.jp/company/doc/undocumented_mem/io_kb.txt
-
-
- Inhibit repeating key:
- 0x9C, 0x70
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