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2014-02-08 17:42:17 +00:00
IBM 4704 to USB keyboard converter
2014-02-10 01:01:42 +00:00
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This firmware converts IBM 4704 keyboard protocol to USB HID.
2014-02-09 22:02:48 +00:00
4704 Connector
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Keyboard Plug from front
DSUB-9
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\ N 2 3 4 5 /
\ N N N N /
---------
2 GND
3 VCC 5V
4 DATA
5 CLOCK
N No connection/No pin.
Connection
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In case of using ATMega32U4(Teensy2.0):
1. Supply power with VCC and GND.
2. Connect CLOCK to PD1 and DATA to PD2. You can change pin with config.h.
3. Optionally you may need pull-up register. 1KOhm probably work.
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Build Firmware
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Just run `make` :
$ make
To select keymap:
$ make KEYMAP=[plain|...]
Keymap
------
Several version of keymap are available in advance but you are recommended to define your favorite layout yourself. To define your own keymap create file named `keymap_<name>.c` and see keymap document(you can find in top README.md) and existent keymap files.
