History

Kenneth Aloysius d3c6da7aff Updated personal keymaps, fixed Let's Split default keymap, updated JJ40 README (#2704 ) * Add M6-A keymap * Update XD60 keymap * Update XD60 keymap readme * Update JJ40 and Let's Split keymaps * Add readme for M6-A * Fix typo, update JJ40 README * Update jj40 readme * Cleanup jj40 keymap * Revert Let's Split QWERTY layer to default before #2010 * Update numpad layers * Fix: Let's Split keymap getting stuck mods due to having keycodes assigned on the Raise layer * Keep ASCII art consistent with keymap		2018-04-19 09:28:55 -07:00
..
keymaps	Updated personal keymaps, fixed Let's Split default keymap, updated JJ40 README (#2704 )	2018-04-19 09:28:55 -07:00
tools	Add multiple layout support and Linux flash utility to JJ40 (#1837 )	2017-10-13 19:04:36 -10:00
backlight.c	Backlighting for JJ40 and underglow initialisation code (#2260 )	2018-01-18 16:02:32 -05:00
backlight_custom.h	Backlighting for JJ40 and underglow initialisation code (#2260 )	2018-01-18 16:02:32 -05:00
breathing_custom.h	Backlighting for JJ40 and underglow initialisation code (#2260 )	2018-01-18 16:02:32 -05:00
config.h	Backlighting for JJ40 and underglow initialisation code (#2260 )	2018-01-18 16:02:32 -05:00
i2c.c	Add support for the JJ40 Keyboard (#1834 )	2017-10-13 10:20:56 -10:00
i2c.h	Add support for the JJ40 Keyboard (#1834 )	2017-10-13 10:20:56 -10:00
jj40.c	Fixes for JJ40 and Oscillope keymap (#2496 )	2018-03-08 21:31:08 -05:00
jj40.h	Backlighting for JJ40 and underglow initialisation code (#2260 )	2018-01-18 16:02:32 -05:00
matrix.c	Update personal layouts, free up matrix_scan_user for JJ40 (#2319 )	2018-02-02 01:30:47 -05:00
README.md	Updated personal keymaps, fixed Let's Split default keymap, updated JJ40 README (#2704 )	2018-04-19 09:28:55 -07:00
rules.mk	Update personal layouts, free up matrix_scan_user for JJ40 (#2319 )	2018-02-02 01:30:47 -05:00
usbconfig.h	Backlighting for JJ40 and underglow initialisation code (#2260 )	2018-01-18 16:02:32 -05:00

README.md

jj40

A compact 40% (12x4) ortholinear keyboard kit made and KPRepublic on AliExpress.

Keyboard Maintainer: QMK Community
Hardware Supported: Atmega32A
Hardware Availability: AliExpress

Make example for this keyboard (after setting up your build environment):

make jj40:default:program

See build environment setup then the make instructions for more information.

Note that this is a complete replacement for the firmware, so you won't be using Bootmapper Client to change any keyboard settings, since not all the USB report options are supported.

In addition you may need the AVR toolchain and bootloadHID (GitHub repo) for flashing:

For macOS:

$ brew cask install crosspack-avr
$ brew install --HEAD https://raw.githubusercontent.com/robertgzr/homebrew-tap/master/bootloadhid.rb

For Linux:

$ sudo apt install libusb-dev
$ wget https://www.obdev.at/downloads/vusb/bootloadHID.2012-12-08.tar.gz
$ tar -xzf bootloadHID.2012-12-08.tar.gz
$ cd bootloadHID.2012-12-08/commandline
$ make
$ sudo cp bootloadHID /usr/bin

In order to use the ./program script, which can reboot the board into the bootloader, you'll need Python 2 with PyUSB installed:

$ pip install pyusb

If you prefer (or are having issues with a program flash), you can just build it (make jj40:<keymap-name> and flash the firmware (.hex file) directly with bootloadHID if you boot the board while holding down Backspace (Top Right Key) to keep it in the bootloader:

$ make jj40
$ bootloadHID -r jj40_default.hex

Troubleshooting

Try plugging the board in while pressing Backspace (Top Right Key). This will force it to boot only the bootloader without loading the firmware. Once this is done, just reflash the board with the original firmware.
Sometimes USB hubs can act weird, so try connecting the board directly to your computer or plugging/unplugging the USB hub.
If you get an error such as "Resource Unavailable" when attemting to flash on Linux, you may want to compile and run tools/usb_detach.c. See tools/README.md for more info.