Bug in menuOperation ppsTimescale

[PaulZC]

As reported by Roel De Vries:

A crash occurs in menuOperation, when the settings.ppsTimeScale choice reaches mosaicPPSParametersTimeScaleEntries and should wrap back to 0 (GPS).

The bug is here:

SparkFun_GNSSDO/Firmware/GNSSDO_Firmware/menuSystem.ino

Line 512 in c5aebe9

settings.ppsPolarity = 0;

It should be setting settings.ppsTimeScale to 0, not settings.ppsPolarity.

[PaulZC]

If an erroneous ppsTimeScale has been saved (to flash and SD), it can be cleared using option "r) Reset all settings to default" from the main menu.

Alternatively, you can: turn the GNSSDO off, eject the SD card, edit the SFE_GNSSDO_Settings.txt file and set ppsTimeScale=0, insert the SD card, restart the GNSSDO.