readme.md (1538B)
1 # Rev 2 2 3 A 40% hotswap ortholinear RGB keyboard from KP Republic. 4 5 * **Revision 2: "single pcb"** 6 * Keyboard Maintainer: [Var](https://github.com/itsvar8) 7 * Hardware Supported: CSTC40 rev2 8 * STM32F402RCT6 MCU with IS31FL3733 LED driver and using `stm32-dfu` bootloader. Integrated USB connection. 9 * Hardware Availability: kprepublic.com 10 11 Make example for this keyboard (after setting up your build environment): 12 13 make kprepublic/cstc40/rev2:default 14 15 Flashing example for this keyboard: 16 17 make kprepublic/cstc40/rev2:default:flash 18 19 See the [build environment setup](https://docs.qmk.fm/#/getting_started_build_tools) and the [make instructions](https://docs.qmk.fm/#/getting_started_make_guide) for more information. Brand new to QMK? Start with our [Complete Newbs Guide](https://docs.qmk.fm/#/newbs). 20 21 ## Bootloader 22 23 Enter the bootloader in 3 ways: 24 25 * **Bootmagic reset**: Hold down the key at (0,0) in the matrix (usually the top left key or Escape) and plug in the keyboard 26 * **Physical reset button**: Briefly press the button on the back of the PCB - some may have pads you must short instead 27 * **Keycode in layout**: Press the key mapped to `QK_BOOT` if it is available 28 29 The rev 2 uses pin `A10` in the key matrix, which apparently is a design flaw that may prevent the bootloader from entering the proper mode for DFU flashing - <https://docs.qmk.fm/#/platformdev_blackpill_f4x1?id=pins-to-be-avoided>. There is a simple workaround that works most of the time - press the pin key (generally the letter R) during the boot.