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How to handle the interrupt_uart interrupt on imx6 ?

Question asked by Florian Gaudon on May 23, 2019
Latest reply on Aug 2, 2019 by Neeraj Verma



I am using UART 3 on imx6 and I want to know when my first byte is being sent.

At the moment, I'm polling the TXDC flag to know it but I want to do it with an interrupt. 

The TCEN bit in UCR4, allows the interrupt to be asserted (interrupt_uart) but I don't know how to catch it !
I've configure many register to generate this interrupt but I don't know how to catch it ...

I you have any answers or tips to help me, it would be nice !


Thank you already ,