Learned a tidbit about Xmega development. Use the fully qualified names when accessing processor registers.
The fully qualified looks like PORTC_OUTSET. It is also perfectly allowable and compilable to do PORTC.OUTSET as structures are also defined. However, there is a major difference. The fully qualified (PORTC_OUTSET) has volatile tied to it and the (PORTC.OUTSET) does not. This can create a very subtle and time consuming bug to track :-( It manifests itself somewhere silently in the optimizer. :-( Use the underscores! Best regards, Rob _______________________________________________ AVR-libc-dev mailing list AVR-libc-dev@nongnu.org http://lists.nongnu.org/mailman/listinfo/avr-libc-dev
