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- IBM 4704 to USB keyboard converter
- ==================================
- This firmware converts IBM 4704 keyboard protocol to USB HID.
-
- Keyboard initialization process takes a few seconds at start up. During that you will hear buzzer from the keyboard. **You need to plug USB cable after hooking up your keyboard to the converter.**
-
-
- 4704 Connector
- --------------
- Keyboard Plug from front:
-
- DSUB-9
- -------------
- \ N 2 3 4 5 /
- \ N N N N /
- ---------
- 2 GND
- 3 VCC 5V
- 4 DATA
- 5 CLOCK
- N No connection/No pin.
-
-
- Connection
- ----------
- In case of using ATMega32U4(Teensy2.0):
-
- 1. Supply power with VCC and GND.
- 2. Connect CLOCK to PD1 and DATA to PD0. You can change pin with config.h.
- 3. Optionally you may need pull-up register. 1KOhm probably work.
-
-
- Build Firmware
- --------------
- 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.
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