I've been working on a design using an Atmega1284P-PU in the DIP package, however due to space constraints may have to switch to the 1284P-AU in the TQFN package.
Now, I'm not using a bootloader - I am simply flashing with an AVR ISP Mk II over ICSP. I will still have USB communications available for serial debugging and SD storage download, however that is another story. How would I go about using the P-AU version with the Ardunio IDE?
1) I'm assuming i'll need to make another entry in boards.txt as the device signature will be different. 2) Regarding fuses and lockbits etc, I'll set these with Atmel Studio - so all the trouble people have been having with bootloaders, is not a problem here. 3) Setting pin definitions, again - i'm assuming another file will be needed somewhere here? Here is where I'm a little lost.