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AN4503: Do I really need to enable a falling edge interrupt?

Question asked by markosiponen on Jun 20, 2013
Latest reply on Jun 27, 2013 by Philip Drake

In the AN4503 they activate a falling edge interrupt on the E1 pin. Do I really need to do that to be able to wake up on a falling edge on that pin?

 

falling_edge.png

 

It is not enough to do the following:

 

LLWU_PE1 = LLWU_PE1_WUPE0(2); //falling edge detection

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