We are trying to upload a file onto ATMEGA2560...andit keeps giving us the error... Serial port timeout set to 5 sec. Found AVRBOOT on COM6! Entering programming mode... Parsing XML file for device parameters... Parsing '.\ATmega2560.xml'... #########.......############ Saving cached XML parameters... An error occurred: [Error opening HEX file for output!] Kindly help us out with this...
Try an AVR centric forum, or instructions specific to the tool you are using. Perhaps some videos on YouTube