GnssMonitor: picking up GN* messages

I’ve been trying to figure out why GnssMonitor.OnMessageReceived has been interpreting exactly one real GGA message before going silent, and I think it might be the m_supportGNMessages flag.

Here’s an idea of what my log looks like:

(OnMessageReceived) Gga receieved (right after else if (message is Gga gga))
(OnLocationUpdate) {lat, lon, alt, satellites}
(NmeaMessageReceived end) Gga message should have been processed
///
(NmeaMessageReceived end) Gga message should have been processed
(The message contained "GGA" but wasn't picked up by OnMessageReceived? Weird)
///
(NmeaMessageReceived end) Gga message should have been processed
///
(NmeaMessageReceived end) Gga message should have been processed
///
(NmeaMessageReceived end) Gga message should have been processed
///
Ignoring message in favor of Gsv (the m_supportGNMessages return)
(NmeaMessageReceived end) Gga message should have been processed
///
Ignoring message in favor of Gsv
(NmeaMessageReceived end) Gga message should have been processed

Assuming my device (a Bad Elf GPS Pro+) supports GN* messages, where are they interpreted?

[dotMorten]

Ok you just said the location wasn’t changing. Sounds like we misunderstood each other 😂

[dotMorten]

Thanks for the follow-up. That’s definitely against the NMEA spec but I can see why. Older NMEA libraries would likely only pass GP*** messages (including some older versions of this library). Anyway the latest fix I made should address this