Hi
My Navio+ is on the way, so just browsing the sourcecode at the moment.
Looking at the navio-plus-rtk branch, and I noticed the PPS signal has been defined here:
#define RPI_GPIO_22 22 // Pin 15 NAVIO_UBLOX_PPS
However, I cannot see anywhere it is being used in the code?
I checked the kernel config, and it appears kernel PPS is configured and pps-gpio module is also available.
Do I need to setup PPS separately, ie add “dtoverlay=pps-gpio,gpiopin=22” in /boot/config.txt?
Regards
Keith