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tmk_keyboard_custom
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tmk_keyboard_custom/converter/ibm4704_usb
tmk 902afcc509 Add doc 4704.txt and protocol comment преди 10 години
..
4704.txt Add doc 4704.txt and protocol comment преди 10 години
Makefile Add keymap_hasu.c преди 10 години
README.md Add keymap_hasu.c преди 10 години
config.h Add Initial files of 4704_usb преди 10 години
keymap_common.c Add Initial files of 4704_usb преди 10 години
keymap_common.h Add keymap_hasu.c преди 10 години
keymap_hasu.c Add keymap_hasu.c преди 10 години
keymap_plain.c Add Initial files of 4704_usb преди 10 години
led.c Add Initial files of 4704_usb преди 10 години
matrix.c Tweak keyboard initialize преди 10 години

README.md

IBM 4704 to USB keyboard converter

This firmware converts IBM 4704 keyboard protocol to USB HID.

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 PD2. 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.