• Original [readme.md](readme.md) regarding QMK firmware only.
• This [README](README.rst) is about building flashing firmware on [Corne Keyboard, by foostan](https://github.com/foostan/crkbd)

see rules file for general keyboard config, ./keyboards/crkbd/rules.mk and keymap layout file, keyboards/crkbd/keymaps/default/keymap.c

to build firmware and output to file (crkbd_rev1_default.hex) ::

make crkbd/rev1:default

or flash right side (no / qmk bootloader) ::

make crkbd/rev1:default:dfu-split-right

or flash with avrdude (caterina bootloaders) ::

make crkbd/rev1:default:avrdude

or flash with avrdude, left/right side ::

make crkbd/rev1:default:avrdude-split-left make crkbd/rev1:default:avrdude-split-right

Errors during make build firmware:

if you get errors like,

QMK Firmware 0.7.115
Making crkbd/rev1 with keymap default

tmk_core/protocol/lufa.mk:14: lib/lufa/LUFA/makefile: No such file or directory
make[1]: *** No rule to make target 'lib/lufa/LUFA/makefile'.  Stop.
Make finished with errors
make: *** [Makefile:579: crkbd/rev1:default] Error 1

then try updating workspace's submodules with the following,

git fetch --all
git submodule update

in the event you don't have the requisite tools, try running the installer

./util/linux_install.sh
./util/qmk_install.sh

or, try building inside a Docker container

./util/docker_build.sh