In my most recent XMEGA project I noticed a serious problem with printf.When i try to use AVR-LIBC printf routines outside the main.c file, with two or more variables the xmega resets!
Printing within the main.c file works just fine. I have isolated this to the printf stdout routines, its certainly not the uart.
Also Printing less than two variables, only one variable works fine!
Help is greatly appreciated!