AVRDUDE - AVR Downloader/UploaDEr - is a program for updating the
flash, eeprom, and fuse bit memories of Atmel AVR microcontrollers.
It operates with several programmers including STK500 and most
directly connect parallel port style programmers.

This is a version of AVRDUDE with patches from the Arduino project
that haven't been sent upstream applied to it.

WWW: http://www.nongnu.org/avrdude/