How to set a GPIO as an interrupt pin and test if the interrupt function is working properly in Orin NX?

[KevinFFF]

Hi jack.yan,

Are you using the devkit or custom board for Orin NX?

@jack.yan

Or I need to choose a gpio to set as interrupt（I choose GPIO3_PY.03 to test）? I need to set this pin as a rising edge trigger interrupt. Which device tree file should I modify it in?
I already set this gpio direction to in:

spi1_cs0_pz6 {

Why you said that you want to use PY.03 but you are configuring PZ.06?

I would suggest configuring pinmux from pinmux spreadsheet instead of modifying pinmux dtsi directly.

@jack.yan

Can I use the PPS module in the Linux kernel to implement this feature?

Yes, please refer to the following topics for this use case.
Can’t enable PPS on Jetson AGX Xavier - Jetson & Embedded Systems / Jetson AGX Xavier - NVIDIA Developer Forums
AGX Xavier PPS fetch timeout R35.2.1(R32.7.1 works fine) - Jetson & Embedded Systems / Jetson AGX Xavier - NVIDIA Developer Forums
Pps_gpio interrupt not asserted - Jetson & Embedded Systems / Jetson Orin NX - NVIDIA Developer Forums
PPS input to GPIO on Jetpack 6.1 - Jetson & Embedded Systems / Jetson AGX Orin - NVIDIA Developer Forums