229693e687
* Add PC-8801 Keyboard support. * Add PC-8801 Keyboard support. * Add PC-8801 Keyboard support.
73 lines
1.6 KiB
Text
73 lines
1.6 KiB
Text
PC88(Late type) to USB keyboard protocol converter
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=======================================
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Target MCU is ATMega32u2 but other USB capable AVR will also work.
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README FIRST
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This converter is for TYPE-B keyboard. For keyboards other than TYPE-B,
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change the mode switch on the back of the keyboard.
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Stand the left foot on the back of the keyboard and there are two slits.
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There is a mode change switch in the back of it.
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When this switch is up, TYPE-B mode is set.
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When connecting a keyboard to this adapter, be sure to set to TYPE-B mode.
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Connector
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On host/converter:
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5Pin mini DIN
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___ ___
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/ |_| \
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/ 5 4 \
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| 3 | 2 |
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\_ 1 _/
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\_____/
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(receptacle)
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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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1 5V VCC
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2 GND GND
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3 DATA RD2
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4 NC
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5 NC
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Protocol
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--------
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Signal: Asynchronous, Positive logic, 20800bps, Least bit first
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Frame format: 1-Start bit(Lo), 8-Data bits, non-Parity, 1-Stop bit
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Build Firmware
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--------------
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Just use 'make' to bild firmware for TMK PC88 converter.
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$ make -f Makefile.unimap clean
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$ make -f Makefile.unimap
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To flash firmware
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$ make -f Makefile.unimap dfu
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then push button on converter to flash firmware.
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If you are using ATMega32u4 based board instead of premade TMK PC88 converter(ATMega32u2) use following commands.
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$ make -f Makefile.unimap.32u4 clean
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$ make -f Makefile.unimap.32u4
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$ make -f Makefile.unimap.32u4 dfu
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