I am developing at a company that prototypes lots of different devices. For most of time i use atmel studio and my lovely mkII, but in this instance i am very short on time to make 10 working prototypes, so i switched to arduino. And in last month project got bigger and bigger and got to a point when megas 328 jsut did not have enought memory. Now i realised my project on MEGA2560(where it only took 32% and 33% of memory) and now i need to move the 2560 to my custom pcb.
We have partner that develops PCBs for us in 12 hours, but i got to a littel problem now. I wish to be able to later change program on the custom mega2560 so i want to add a FTDI chip right to the board(liek i did on my previous projects where i moved from uno to custom pcbs).
Problem is that i see that on arduino mega2560, there is atmega16u2 used as programming inbeetwen. I read somewhere in a footnote that i can go whit atmega 1280, on which i can burn bootloader and then program it directly via my mkII or avrusb.
So what i am asking is if some1 has a link to a guide to how to get Arduino Mega2560 or Arduino MEga1280 from arduino board to custom pcb?