Pulse per second from (PPS) the GNSS


#1

Hi,

I’m using the WP7607 device.
Is it possible to receive a hardware PPS (pulse per second) from the GNSS?

Thanks, Isak.


#2

@isak,

There isn’t one listed in the PTS which means that the firmware does not have the capability to assign it (assuming it is available on the internal chipset) meaning that effectively no it is not possible, if the firmware does not do it directly then it will just not be accurate enough.

Regards

Matt


#3

Hi Matt,

Thank you for the fast reply!
Maybe it’s possible then to receive an interrupt or cb once a second?
I’m aware that it won’t be accurate.
I only need accuracy of a few ms.
Do you think it can be achieved by software?

Thanks, Isak.


#4

@isak

It is potentially possible, however, if you are after accuracy of mS’s then you might be able to do that just using a generic GPIO triggering off the RTC and not the GNSS.

Regards

Matt