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pc98_usb: Update README

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tmk 2018-06-07 17:29:13 +09:00
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converter/pc98_usb/README
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@ -1,6 +1,6 @@
PC98 to USB keyboard protocol converter PC98 to USB keyboard protocol converter
======================================= =======================================
Target MCU is ATMega32u4 but other USB capable AVR will also work. Target MCU is ATMega32u2 but other USB capable AVR will also work.
Connector Connector
@ -59,9 +59,31 @@ PC98 to PS/2
http://www.tsp.ne.jp/~sawada/mago/c_gka98at.htm http://www.tsp.ne.jp/~sawada/mago/c_gka98at.htm
http://www.tsp.ne.jp/~sawada/mago/src/gka98at.asm http://www.tsp.ne.jp/~sawada/mago/src/gka98at.asm
scan code:
http://ixsvr.dyndns.org/usb2pc98
NEC PC-9801-98-S02 - raku raku keyboard:
https://deskthority.net/photos-f62/nec-pc-9801-98-s02-t5212.html
PC98 keyboard commands PC98 keyboard commands
----------------------
http://www.webtech.co.jp/company/doc/undocumented_mem/io_kb.txt http://www.webtech.co.jp/company/doc/undocumented_mem/io_kb.txt
response from keyboard:
FAh: ACK
FCh: NACK
Inhibit repeating key: Inhibit repeating key:
0x9C, 0x70 0x9C, 0x70
LED control:
9Dh 7xh
second byte:
0111 xxxx
|||`- NumLock
||`-- ?
|`--- CapsLock
`---- Kana