I've been reading all I can here and in atmel's app notes about the accuracy of the internal clock sources.
I see in app note avr1003 that the xmega's internal 32MHz oscillator is accrate to 1% at 3V and 25 degs C. The doc also says "The oscillator can be further tuned and calibrated using the auto-calibration feature covered in section...".
Which brings up two questions I haven't been able to answer:
1. Does atmel spec the xmega's internal oscillator accuracy over temperature changes? I'm interested in accuracy as ambient changes from about 5 to 32 C.
2. What is the accuracy with use of the internal oscillator with use of the auto-calibration feature?
Does anyone know? And if you can please tell me where you found it I'll be better off for next time.