#+TITLE: Custom QMK Colemak-mod-dh firmware for Corne split keyboard
* Description of keyboard layers
** Layer 0 - Colemak layer with home row modifiers for ALT
[[./images/layer0.png]]
** Layer 1 - Similar Colemak layer but without the modifiers
(useful when the application uses the keys of the modifiers as hold keys)
[[./images/layer1.png]]
** Layer 2 - Symbol and cursors layer
This layer also have the „super-alt-tab” where the tab key is located on the Colemak layer.
[[./images/layer2.png]]
** Layer 3 - Numbers layer
[[./images/layer3.png]]
** Layer 4 - Functional & misc keys
[[./images/layer4.png]]
* How to compile and flash the firmware
** Clone the repository to =qmk_firmware/crkbd/keymaps= and name it for example =adam_colemak=.

#+begin_src shell
  cd qmk_firmware/
  cd keyboards/crkbd/keymaps/
  git clone https://code.bsdgeek.org/adam/qmk-corne-colemak-dh-mod adam_colemak
#+end_src

** Set the keymap as default and compile from its directory
  (hard to say but had to compile from inside the directory as setting it as default somehow didn't work)

#+begin_src shell
  qmk config user.keymap=adam-colemak
  cd qmk_firmware/
  cd keyboards/crkbd/keymaps/adam-colemak/

  ## only used to regenerate the keymap if you would customize using online keymap editor.
  # qmk json2c crkbd_rev1_layout_split_3x6_3_mine.json -o keymap-json.c
  qmk clean
  qmk compile -kb crkbd/r2g
#+end_src

** Flash the firmware
  (two times the same command chained for both of the sides of the keyboard)
#+begin_src shell
  qmk flash -kb crkbd/r2g ;  qmk flash -kb crkbd/r2g
#+end_src

** Troubleshoting
  Had to update my Windows usb driver using [[https://docs.qmk.fm/#/driver_installation_zadig]] guide
  to have qmk recognise my device when switching to bootloader mode via double clicking the reset button on the keyboard.