topic Re: S32K144 EVB External interrupt in S32K

S32K144 EVB External interrupt

pritampatil — Thu, 17 May 2018 07:31:19 GMT

I am working on S32K144 Eval board. i want to do a simple project where i can detect a external interrupt (probably by a switch connected to PTC-12) and switch on a LED. It can be done with simple if-else conditional statement also, but i want to know how to configure external interrupts for S32K144. Example projects have only internal interrupt example.

It will be great if someone could attach here a sample code which has a simple External interrupt( through switch) and toggles the LED whenever interrupt is received.

Re: S32K144 EVB External interrupt

raresvasile — Fri, 18 May 2018 07:45:19 GMT

Hi,

Please check flexcan_encrypted_s32k144 example project. You can find there an example on the implementation of the buttons interrupt.

Best regards,

Rares

Re: S32K144 EVB External interrupt

pritampatil — Tue, 05 Jun 2018 10:20:13 GMT

Hi,

I tried looking int that code, it was quite confusing as i have never worked on CAN.

It will be really helpful if you can provide a basic sample code for External interrupt.

Pritam

Re: S32K144 EVB External interrupt

Kavin-Sun — Fri, 27 Aug 2021 08:47:17 GMT

Hi.
Thank you for NXP employee.

I tried 'External interrupt' using s32K144 EVB.

Using example 'hello_world_s32k144', modified button1 ,2 interrupt example.

Please refer below comment in 'main.c' file.

/* Kevin START */

/* Kevin END */

1. changed PIN 12, PIN 13 by input setting like below.

2. changed PTC 12,PTC 13 interrupt option

3. Generate Processor Expert Code

4. Modified 'main.c' file
/* Kevin START */ ~my changed code ~ /* Kevin END */

Thank you a lot.