how to setup NTPD with GPIO PPS

Robotics & Edge Computing Jetson & Embedded Systems Jetson AGX Xavier
1

Hi，
I want to use GPIO PPS.I want to know how to configure the kernel and pinmux,thank you!

2

you may like to have a look at:
https://devtalk.nvidia.com/default/topic/1046186/jetson-agx-xavier/connecting-gps-with-pps-to-xavier/
https://devtalk.nvidia.com/default/topic/1047944/jetson-agx-xavier/implementation-of-precise-time-synchronization-between-two-xaviers-over-wlan/?offset=2#5318093

3

Hi Andrey1984,
Thank you for your reply.
I have referenced the link about pps-gpio.I know how to configure the “CONFIG_PPS_CLIENT_GPIO”.
But I do not know how to configure the gpio in the dts ，I use the pin “GPIO35_PWM3”.Can your pps-gpio function work now ?And how do you configure the dts for pps?