32bb8f6b8a
* Typo: Github => GitHub * Typo: windows => Windows, docker => Docker, and some punctuations * "QMK Introduction" links to the right file * "Unix" rather than "UNIX", which is a trademark * Directory name is "keyboards", not "keyboard" * "handwired" is a subdirectory of "keyboards" * Punctuation and minor fixes * macOS rather than Mac * Punctuation and other minor fixes * Vagrant Guide links to an existing file * Jun Wako referenced with his name rather than his nickname * Saxon genitive 's outside the link
47 lines
2.3 KiB
Markdown
47 lines
2.3 KiB
Markdown
# Introduction
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This page attempts to explain the basic information you need to know to work with the QMK project. It assumes that you are familiar with navigating a Unix shell, but does not assume you are familiar with C or with compiling using make.
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## Basic QMK structure
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QMK is a fork of [Jun Wako](https://github.com/tmk)'s [tmk_keyboard](https://github.com/tmk/tmk_keyboard) project. The original TMK code, with modifications, can be found in the `tmk` folder. The QMK additions to the project may be found in the `quantum` folder. Keyboard projects may be found in the `handwired` and `keyboard` folders.
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### Keyboard project structure
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Within the folder `keyboards` and its subfolder `handwired` is a directory for each keyboard project, for example `qmk_firmware/keyboards/clueboard`. Within it you'll find the following structure:
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* `keymaps/`: Different keymaps that can be built
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* `rules.mk`: The file that sets the default "make" options. Do not edit this file directly, instead use a keymap specific `Makefile`
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* `config.h`: The file that sets the default compile time options. Do not edit this file directly, instead use a keymap specific `config.h`.
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### Keymap structure
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In every keymap folder, the following files may be found. Only `keymap.c` is required, and if the rest of the files are not found the default options will be chosen.
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* `config.h`: the options to configure your keymap
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* `keymap.c`: all of your keymap code, required
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* `rules.mk`: the features of QMK that are enabled
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* `readme.md`: a description of your keymap, how others might use it, and explanations of features. Please upload images to a service like imgur.
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# The `config.h` file
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There are 2 `config.h` locations:
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* keyboard (`/keyboards/<keyboard>/config.h`)
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* keymap (`/keyboards/<keyboard>/keymaps/<keymap>/config.h`)
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If the keymap `config.h` exists, that file is included by the build system and the keyboard `config.h` is not included. If you wish to override settings in your keymap's `config.h` you will need to include some glue code:
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```
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#ifndef CONFIG_USER_H
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#define CONFIG_USER_H
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#include "../../config.h"
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```
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If you want to override a setting from the parent `config.h` file, you need to `#undef` and then `#define` the setting again, like this:
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```c
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#undef MY_SETTING
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#define MY_SETTING 4
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```
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