Do you forsee many problems with using a hex file compiled for the ATmega644P on an ATmega1284P?
I changed out the 644P for the 1284P on a couple of boards, and programmed the microcontroller via the SPI interface as normal. And the software seems to be running fine.
Obviously, I'm not gonna be able to utilize the whole flash, RAM or EEPROM on the 1284P. But will the software run as normal, and not crash when I turn my back?
Thank you for any and all input! :)