qmk_firmware/keyboards/converter/xt_usb/README.md

XT to USB keyboard converter
==============================
This is a port of TMK's converter/xt_usb to QMK.

This firmware converts XT keyboard protocol to USB.(It supports Scan Code Set 1.)


Connect Wires
-------------
1. Connect **Vcc** and **GND**.
2. Connect **Clock** and **Data** line. **Clock** is on `PD1`,  **Data** on `PD0` by default. And optionally you can use `PB7` for **Reset**.(Compatible to Soarer's converter) To change pin configuration edit `config.h`.
3. You need pull-up resistor. **1K-10K Ohm** will be OK.


XT keyboard protocol  resource
------------------------------
https://github.com/tmk/tmk_keyboard/wiki/IBM-PC-XT-Keyboard-Protocol
Keyboard: Port of TMK XT USB Converter (#3619) * Converter: add XT USB converter from TMK * Converter: port TMK code for USB converter to QMK * Apply requested changes after code review by @drashna - use "pragma once" instead of include guards - use LAYOUT instead of KEYMAP - allow customisation with matrix_init_user() and matrix_scan_user() - set BOOTLOADER instead of BOOTLOADER_SIZE - Add XT_ENABLE to OPT_DEFS * Remove unnecessary lines 2018-10-22 19:37:03 +00:00			`XT to USB keyboard converter`
			`==============================`
			`This is a port of TMK's converter/xt_usb to QMK.`

			`This firmware converts XT keyboard protocol to USB.(It supports Scan Code Set 1.)`


			`Connect Wires`
			`-------------`
			`1. Connect Vcc and GND.`
			2. Connect Clock and Data line. Clock is on `PD1`, Data on `PD0` by default. And optionally you can use `PB7` for Reset.(Compatible to Soarer's converter) To change pin configuration edit `config.h`.
			`3. You need pull-up resistor. 1K-10K Ohm will be OK.`


			`XT keyboard protocol resource`
			`------------------------------`
			`https://github.com/tmk/tmk_keyboard/wiki/IBM-PC-XT-Keyboard-Protocol`