I have ready EVERYTHING about the Mega 2560 timeout issue on this site and many others. I have tried reinstalling usb drivers, editing boards.txt, tweaked versions of avrdude and I have pressed reset about a million times while uploading, to no avail. I have run avrdude from the cmd line with every possible -c and still no joy. Is there a simple solution to what seems to be a very widespread problem in that the arduino IDE seems totally unable to upload sketches to the Mega?
For the record, I have tried it with arduino 1.0.0 and 1.5.1r2. The board is a genuine Arduino item R3 (from farnell.co.uk) and the USB driver says date: 15/11/2007 version 5.1.2600.0
I have run the loopback test which was fine and I have even reflashed the Atmega16U2 firmware. What else is left? PLEASE don’t reply if you have a suggestion that involves any of the above - I have tried it!!!
Luckily I have an AVR dragon and Atmel Studio 6. I can upload the bootloader to the 16U2 perfectly ok, and I can upload hex/elf sketches to the mega2560. So all is not lost, i.e. I can use the mega, but its a song and dance, and I’d dearly love to use the Arduino IDE
PS Win7 Home premium 64bit
What o what o what is wrong with my setup? It’s driving me nuts!