I have a UNO that has a dead USB chip. Before I trash the board i would like to try and reprogram the USB chip.
I do have an Atmel ATmeaga programmer.
Does anyone know where the programming file for the UNO USB chip is?
I would also like the bootloader file for the ATmega328.
Bob Macklin
Seattle, Wa
Official Unos and some clones have an ATmega16U2 that can be programmed. The firmware is here:
or in the equivalent location in your Arduino IDE installation folder.
Many clones use the CH340 instead of ATmega16U2. That chip can't be programmed.
The Uno bootloader is here:
or in the equivalent location in your Arduino IDE installation folder.