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
This commit is contained in:
markspanbroek
2018-10-22 21:37:03 +02:00
committed by Drashna Jaelre
parent bf57587e62
commit 6d7745a110
12 changed files with 926 additions and 0 deletions

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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