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Last active April 16, 2022 12:45
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How to flash your Leopold FC660C keyboard with the Hasu controller (ATMega32U4) for customizing any key
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leopold-hasu-controller.md

Leopold FC660C Hasu controller

  1. edit keymap on tmk keyboard editor, and download the layout.hex file

  2. get dfu-programmer using apt, or downloading from source and building

Method 1 (APT): sudo apt install dfu-programmer

Method 2 (building from source)

cd ~/install_dir/
wget https://github.com/dfu-programmer/dfu-programmer/archive/refs/tags/v0.7.1.tar.gz
tar -xzf dfu-programmer-0.7.1.tar.gz
cd dfu-programmer/ && ./bootstrap.sh && .configure
make -j24 && sudo make install -j24

  1. make sure your keyboard is in bootloader mode keep it plugged, flip it over and press the button

  2. flash

sudo dfu-programmer atmega32u4 erase
sudo dfu-programmer atmega32u4 flash layout.hex
sudo dfu-programmer atmega32u4 reset

Afterwards you're good to go

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