topic KL26Z Port B interrupt in Kinetis Microcontrollers

KL26Z Port B interrupt

d4712 — Wed, 08 Sep 2021 20:07:25 GMT

I notice that PORT B has a Interrupt status register(PORTB_ISRFR) and Control register (PORTB_PCR)

Does it have a interrupt vector?

Re: KL26Z Port B interrupt

myke_predko — Wed, 08 Sep 2021 20:57:28 GMT

Yes it does, you can find it (and the other vectors) in the startup_,,, file (I'm not sure what the full name is for the KL26Z) in the "startup" folder (it should be the only file in the folder.

As a default, all the interrupt vectors are given the address of a simple handler that clears the interrupt request flags and return. This handler is defined as a "weak" method that you can easily replace simply by defining a new handler.

Take a look at one of the example apps in the SDK to see how you can create your own handler.

Re: KL26Z Port B interrupt

Robin_Shen — Thu, 09 Sep 2021 00:53:12 GMT

Hi d4712,

KL26's PORT B does not support interrupt, so it does not have an interrupt vector either.

Best Regards,
Robin
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