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master
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sid
keyboards_json
keyboard_identifiers
pp_definitions
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process_keycode_update
b6_b7_audio
example_keyboards
preonic-1.0
planck-4.0
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LUFA-111009
LUFA-130901
LUFA-130901-BETA
LUFA-140302
LUFA-140928
LUFA-151115
LUFA-170418
breakpoint_2019_08_30
ergodox_ez-161205
gh60-0.1
planck-4.1
planck-4.2
planck-5.0
planck-6.0
planck-6.1
planck-light-1.0
preonic-2.0
v4.0
${ noResults }
![]() - Remove prog_char from xpritnf - Remove prog_macro_t from acton_macro avr-libc-1.8 removed 'prog_*' typedef because the usage of the __progmem__ attribute on a type is not supported in GCC. http://www.nongnu.org/avr-libc/changes-1.8.html |
11 years ago | |
---|---|---|
.. | ||
Makefile | Fix BOOTLOADER_SIZE setting | 12 years ago |
README | New keymap of PC98 | 12 years ago |
config.h | Fix legacy keymap support | 12 years ago |
keymap.c | Fix deprecated 'prog_*' typedef - Issue #34 | 11 years ago |
led.c | Add initial files for PC98 | 12 years ago |
matrix.c | Rename file layer_switch to action_layer | 12 years ago |
README
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 ediging config.h.
Pin mini DIN MCU
----------------------------------
1 ~RST PD1
2 GND GND
3 ~RDY PD4
4 RXD PD2
5 ~RTY PD5
6 NC
7 NC
8 5V VCC
Protocol
--------
Singnal: Asynchronous, Positive logic, 19200baud, Least bit first
Frame format: 1-Start bit(Lo), 8-Data bits, Odd-Parity, 1-Stop bit
This converter uses software method for testing purpose. AVR UART engine will work better.
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