I am having trouble with this chip and using the Arduino IDE. I am uploading the bootloader hex file for the mega2560 to the board and settting the fuses and lock bits fine and I can then upload my sketch via arduino itself but the bootloader is then trashed and I am unable to repeat the upload and am forced to reset the chip in Studio.
Fuse settings :
LOCK BIT 0xCF
mega2560V.name=Arduino Mega 2560 or Mega ADK (8MHz Internal, Baud=57.6K)
Does anyone know of any obvious consideration I may have not thought of. The 2560 and the 2560V are as far as I can tell more or less identical inside (they have the same datasheet) so except for voltage and speed being the main difference I can't think of anything else.
Any help or suggestions appreciated.