Question about UART interrupt support

hi to all,

UART is working as a polling method, interrupt method, and DMA method. My question is that how I come to know which method it is following ??
And if I want to change the method how I can?

And the last one which one is the default method?

Thank you!....

Greetings Luyar - welcome to the community!

I’d refer you to this topic and suggest adding to it if you have further questions about UART interrupt support:

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