topic Re: How to check KBI Port in Kinetis Microcontrollers

How to check KBI Port

ricardcomas — Fri, 13 Sep 2019 09:08:50 GMT

Hello everyon, I've configured and working very well the KBI module, but, in the interrupt I've got the next code:

PE_ISR(interrupcio){

KBI0_SC |= KBI_SC_KBACK_MASK;
}

how can I check the port that has get a pulse? for instance, if I have two configured ports, wich of them has received the pulse?¿

Right now i receive the interrupt but from of any port, I need know the port that has activated the interrupt.

Re: How to check KBI Port

martin_kraxa — Fri, 13 Sep 2019 11:44:58 GMT

Hello. Did you solve this problem? I have the same and need help... Thanks

Re: How to check KBI Port

mjbcswitzerland — Fri, 13 Sep 2019 12:41:11 GMT

Which exact KE part do you use, since there are different KBIs in them.

Generally ones without the RSTKBSP flag don't have any indication of which pin caused the interrupt but others with this hold the interrupt source details in KBIx_SP.

Beware also that when one input is active others will be blocked so it is only possible to have one interrupt detected at any time.

Regards

Mark

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