topic Re: How to set GPIO high level interrupt by EB in S32K

How to set GPIO high level interrupt by EB

xaiodongyang — Thu, 02 Mar 2023 01:24:19 GMT

I am using an S32K148 MCU.

I want to set a GPIO(eg:PTD22)to high level interrupt, However, it cannot be set through the ICU module.

GPIO of s32k148 supports high-level interrupt。

RM：

1000 ISF flag and Interrupt when logic 0.
1001 ISF flag and Interrupt on rising-edge
1010 ISF flag and Interrupt on falling-edge
1011 ISF flag and Interrupt on either edge

Question:How to set GPIO high level interrupt by EB

Thanks.

Re: How to set GPIO high level interrupt by EB

DanNguyenDuy — Thu, 02 Mar 2023 11:03:03 GMT

Hi @xaiodongyang,

You can refer to the attached example with FALLING EDGE, if you want to use RISING EDGE, you can modify "IcuDefaultStartEdge" to ICU_RISING_EDGE.

Please install S32K1XX_MCAL4_3_RTM_1_0_2 and EB 24.0.1 for this example.

Best regards,

Dan

Re: How to set GPIO high level interrupt by EB

xaiodongyang — Fri, 03 Mar 2023 07:41:45 GMT

@Dan：
I donot want to use RISING EDGE,I want to use high level interrupt.
RM：
1100 ISF flag and Interrupt when logic 1.
I use SW32K1_RTD_4.4_1.0.1_HF01 and EB 27.1
Thanks.

Re: How to set GPIO high level interrupt by EB

DanNguyenDuy — Fri, 03 Mar 2023 08:36:23 GMT

Hi @xaiodongyang,

The ICU module didn't have a configuration for high-level interrupt. So, from my point of view, you can configure use of RISING EDGE interrupt with a notification function, and in this function, you call

Icu_GetInputState() function to check whether the channel was high level.

Best regards,

Dan

Re: How to set GPIO high level interrupt by EB

xaiodongyang — Sat, 04 Mar 2023 02:20:59 GMT

Hi @dan:

Thank you for your answer.

I will try it.

Thanks