oric_dan:
avrdude has probably been patched so many times, it's probably a wonder it works
at all. There is probably an int somewheres where there should be a long. arraysize
of 4000 gives a 67808 byte size file that is just over the 16-bit boundary.Do you suppose the .hex file address indexing is handled correctly during compilation?
I don't know, but I really do believe it's a bootloader/AVRDUDE legacy bug that has not been fully explored or explained let alone solved for the larger mega size chips when using AVRDUDE. Testing with a 644P chip showed no problem loading up to very near it's flash limit size, so I think the problem is when using sketches larger then the 644P size is.
Lefty