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[SOLVED] AVR ATXMEGA128A4U Interrupt

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Hi all,
I need register selection and configurations for Enable the interrupt service routine in AVR atxmega128a4u controller
Ex. USART Receiver.

Thanks
 

Hi,

I recommend to open the datasheet with a pdf viewer.
Then use the search function and search for "interrupt enable" or similar phrases.

Klaus
 

In atxmega you must enable interrupt controller with required interrupt levels (priority) in PMIC.CTRL. Then enable appropriate interrupt in peripheral control register (for USART that would be USARTxn.CTRLA). And finally enable interrupts with "sei" command.
 

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