Sofle v2.1 - How to enter DFU mode to flash? : r/olkb
dfu programmer for Windows · tmk/tmk_keyboard Wiki · GitHub
Weeks 11-12: AVR USB Devices and Programming
Arduino USB DFU firmware from scratch | A Mutable Log
Downtown Doug Brown » Atmel AT90USBKEY review and demo code
microcontroller - How can I program an Atmega32u4 over USB with this schematic? - Electrical Engineering Stack Exchange
XMEGA Appl Note Datasheet by Microchip Technology | Digi-Key Electronics
AVR Programmer Made Without A Programmer | Hackaday
How to Install LUFA for Arduino USB Development
Getting a 32u4 back into DFU. Doable as designed?
command-not-found.com – dfu-programmer
Flash USB-to-serial firmware in DFU mode – Arduino Help Center
Embedded Computers
BASCOM-AVR
Bart Ruffle's blog: DFU programming the atmega16u2 on the Arduino UNO R3
dfu-programmer - Download
USB DFU Bootloader by Microchip Technology Datasheet | DigiKey
AT90USB128x, AT90USB64x
Atmel USB DFU Programmer download for Windows
Getting started with ATmega8u2 and other AVR USB microcontrollers – HELENTRONICA
GitHub - dfu-programmer/dfu-programmer: dfu-programmer is a Device Firmware Update based USB programmer for Atmel chips with a USB bootloader
Weeks 11-12: AVR USB Devices and Programming
How to Flash Arduino Bootloader without a Programmer
Flash USB-to-serial firmware in DFU mode – Arduino Help Center
