AVR-Dragon - the universal development tool from Atmel for the
programming of microcontrollers.
AVR Dragon has ISP and JTAG interface. In addition to programming it supports
on-chip debugging (OCD) for many controllers, so that "confused" Fuse bits can be saved.
It is supported by AVR-Studio; a firmware update is possible at any time. AVR-Studio
automatically checks the firmware and informs the user when an update is available.
AVR Dragon needed to operate a USB 2.0 port that can deliver a current of 500 mA.