Ublox pps


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?



Navio+ does not use PPS, so there is no need to set it up. It was added “just in case”.

Thank you very much for the clarification, I will try to set it up when my board arrives.

Did you manage to set up pps with the navio+?
If you did, could you post how you did it?
I want to do the same with the reach modules, but are still looking in the source code.