Can I use ceramic resonator (instead of crystal) for UART operation?
What I mean is can I connect my Atmega644P to 16MHz ceramic resonator (0.3% accuracy) and still can use the UART upto 38.4k? According to Atmega644P datasheet, the error rate for 38.4k at 16MHz is 0.2%, which is acceptable. But that is assumed that a crystal which is more accurate than the resonator is used. So, if I use resonator, can I still use the UART uptp 38.4k?