Having some problems updating the firmware on an Atmega 16u2.
The chip is on a custom built Arduino derivative prototype. ISP 6 pin header connected to a AVRISP mkII.
Using winavr, I am entering:
avrdude.exe -c avrispmkII -p at90usb162 -F -U flash:w:path\to\file.hex
But I get the following error:
avrdude.exe: stk500_2_ReceiveMessage(): timeout
If I look in Device Manager on Windows 7, I can see:
- AVRISP mkII under LibUSB-Win32 Devices
ATmega16u2 DFU under Other Devices with a yellow exclamation point telling me the driver is not installed