topic Re: Enable GPIO pin interrupt S32K144 MCU in S32K

Enable GPIO pin interrupt S32K144 MCU

mrajanna — Wed, 01 Nov 2017 05:09:54 GMT

Hi,

I would like to enable the interrupt for particular GPIO pin. I want ISR to get triggered when there is change in value on particular GPIO pin.

For example, how can I trigger ISR for below GPIO pin ? Also guide me what changes are required in below pin mux settings?

Thanks

Mohan

Re: Enable GPIO pin interrupt S32K144 MCU

PetrS — Thu, 02 Nov 2017 08:34:31 GMT

Hi Mohan,

select pin functionality ...

then within a code enable interrupt for PORTE

INT_SYS_EnableIRQ(PORTE_IRQn);

and add interrupt handler code

void PORTE_IRQHandler(void)
{
PINS_DRV_ClearPinIntFlagCmd(PORTE, 16);
PINS_DRV_TogglePins(PTD, (1<<16));
}

BR,

Petr

Re: Enable GPIO pin interrupt S32K144 MCU

jiri_kral — Thu, 02 Nov 2017 09:16:57 GMT

Hi Mohan,

in attachment is modified hello_word example to be able handling PORTE pin 16 IRQ.

Jiri

Re: Enable GPIO pin interrupt S32K144 MCU

mrajanna — Thu, 02 Nov 2017 09:54:53 GMT

Thanks Jiri.

Re: Enable GPIO pin interrupt S32K144 MCU

sushma — Tue, 25 Jun 2019 12:38:43 GMT

Hello

I'm using S32K144 IDE Version: 2018.R1 ;The above attached file isn't supported in my IDE .

How to set the pad configurations in my IDE?

jiri.kral@nxp.com

Re: Enable GPIO pin interrupt S32K144 MCU

jiri_kral — Tue, 25 Jun 2019 12:44:27 GMT

Hi.

here is similar example using current SDK version. This example is for S32K148, but the configuration is almost the same as for S32K144 https://community.nxp.com/docs/DOC-343587

Hope it helps.

Jiri

Re: Enable GPIO pin interrupt S32K144 MCU

sushma — Wed, 26 Jun 2019 06:09:37 GMT

Hello Jiri

I'm still getting these errors and not clearly able to make out what changes in Processor Expert.

I selected Continue Loading

Can you tell how to rectify this issue .

Or tell me which module in PE to add and hoe to alter it to make GPIO to be handled by an Interrupt

Thank you

Re: Enable GPIO pin interrupt S32K144 MCU

jiri_kral — Wed, 26 Jun 2019 06:13:04 GMT

Hi,

It looks that requested SDK version is missing on your machine. Did you install updates? https://community.nxp.com/docs/DOC-341068

Jiri

Re: Enable GPIO pin interrupt S32K144 MCU

sushma — Sat, 29 Jun 2019 10:19:47 GMT

Hello Jiri

I followed the software update procedure. It fails as soon as it reaches around 80%.

So can you instead tell me what all changes I must do in the PE.

I will set my GPIO as my input and later to generate ISR for it, what changes I must make in my interrupt manager and Clock manager to get the settings done right?

jiri.kral@nxp.com‌

Thank you

Sushma Mantagani

Re: Enable GPIO pin interrupt S32K144 MCU

sushma — Sat, 29 Jun 2019 11:11:19 GMT

Hello Jiri

I'm able to hit the interrupt, but it's not getting cleared.

I have done the PE settings as below

The code is as follows:

Kindly help me clear the interrupt, once voltage given to the PORT E 3 is pulled down or no voltage is given.

PINS_DRV_ClearPinIntFlagCmd(PORTE,3); doesn't seem to work

Thank you

Sushma Mantagani

jiri.kral@nxp.com‌

Re: Enable GPIO pin interrupt S32K144 MCU

sushma — Tue, 02 Jul 2019 06:36:11 GMT

jiri.kral@nxp.com‌ Kindly look into this issue and let me know where I may be going wrong

Re: Enable GPIO pin interrupt S32K144 MCU

sushma — Wed, 10 Jul 2019 08:46:34 GMT

jiri.kral@nxp.com‌ Can you please extend your help in this regard

Re: Enable GPIO pin interrupt S32K144 MCU

jiri_kral — Wed, 10 Jul 2019 09:08:30 GMT

Hi,

sorry for delay, the tread is not showing at the top and I missed update. Well, there is nothing special - this is how the pin is cofigured (in my case PORTC, pin 13):

And this is main.c:

When SW4 is pressed out, interrupt is invoked and program stops on breakpoint in interrupt handler.

It seems that you have pull down enabled, is't this feature caused your issue?

Jiri