- JJ50
- ==========================
-
- This is a port of the QMK firmware for boards that are based on the
- ps2avrGB firmware, like the [ps2avrGB keyboard](https://www.keyclack.com/product/gb-ps2avrgb/), for use on the JJ50, a preonic-like board.
-
- Most of the code was taken and amended from YMD96, which in itself was taken from ps2avrGB and amended by Andrew Novak.
-
- 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.
-
- Hardware Supported: JJ50 with the ATmega32a chip.
- Hardware Availability: [KPrepublic on AliExpress](https://www.aliexpress.com/item/jj50-v1-0-Custom-Mechanical-Keyboard-50-PCB-programmed-50-preonic-layouts-bface-firmware-with-rgb/32848915277.html)
-
- This version by [Wayne K. Jones](github.com/WarmCatUK).
-
-
- ## Installing and Building
-
- Make example for this keyboard (after setting up your build environment):
-
- ```
- $ make jj50:default:program
- ```
- It should detect the keyboard and set it to bootloader mode automatically, prior to flashing firmware.
-
- See [build environment setup](https://docs.qmk.fm/#/getting_started_build_tools) then the [make instructions](https://docs.qmk.fm/#/getting_started_make_guide) 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` for flashing:
-
- ```
- $ brew cask install crosspack-avr
- $ brew install --HEAD https://raw.githubusercontent.com/robertgzr/homebrew-tap/master/bootloadhid.rb
- ```
-
- In order to use the `././util/atmega32a_program.py` script, which can reboot the board into
- the bootloader, you'll need Python 2 with PyUSB installed:
-
- ```
- $ pip install pyusb
- ```
-
- If you prefer, you can just build it and flash the firmware directly with
- `bootloadHID` if you boot the board while holding down `Backspace` (`key below top right key`) to keep it
- in the bootloader:
-
- ```
- $ make jj50
- $ bootloadHID -r jj50_default.hex
- ```
- I dont use windows personally, but the following is from ymd96 regarding flashing the atmega32a:
-
- Since the JJ50 uses an ATmega32a chip instead of the 32u4, you need to download [HIDBootFlash v.1.0](http://vusb.wikidot.com/project:hidbootflash) for Windows. If anyone knows of a Linux/Mac bootflasher that works, edit this readme!
- On Windows, I use [MINGw](http://www.mingw.org/) to compile the keymaps. On Linux or OSX you can simply use the terminal.
-
- Once you have those two pieces of software:
- Build the keyboard with
- ```
- $ make jj50:default
- ```
- If you make your own layout, change the `default` word to whatever your layout is.
-
- And flash the compiled hex file with `HIDBootFlash`. Simply put the board in flashing mode by plugging it in while holding the key below the top right key, and click `find device`. Then you can specify the .hex file and flash it to the device.
-
-
- ## Troubleshooting
-
- 1. Try plugging the board in while pressing `Backspace` (`Key below the 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.
- 2. Sometimes USB hubs can act weird, so try connecting the board directly to your computer or plugging/unplugging the USB hub.
- 3. 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.
- 4. I was occasionally finding that I wasn't flashing changes that I was making to my keymap. If that happens, remove the previous build and simply force rebuild by making with:
- ```
- $ rm jj50_default.hex
- $ make -B jj50:default
- $ make -B jj50:default:program
- ```
-
-
-
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