Hello,
I try to use a GPS18x-5Hz GARMIN to sync clok on a CR1000X.
I'am exactly in the issue describe in the folowing section 9.2 of
https://s.campbellsci.com/documents/fr/manuals/gps16x_hvs%20-%20807.pdf
9.2 NMEAStrings Variable Populated, but Clock Not Setting
Look at the GPSReady variable. It will increment from 0 to 10 when the data
logger has received good GPRMC strings and a synchronized PPS signal. Once
GPSReady reaches 10, the data logger will begin to use GPS time for clock
setting. The 12th value populated in GPSArray indicates elapsed time since a
GPRMC string was received and should not exceed 1. If the GPRMC string is
being received and GPSReady remains at zero, the PPS signal is not being
received by the data logger.
I receive good NMEA sentencs but the PPS is not working I assume because the PPS frequency is not 1 Hz but 5 Hz.
Is it possible to use GPS() instruction at 5Hz , and how to change the parameter ?
Because I can't change GPS18X PPS frequency (NMEA 0183 output time 1 to 900 (sec). Not applicable to GPS 18x-5Hz, which always outputsdata at 5 Hz (200 ms)).
Best Regards,
Firmin
To confirm, are you using ComC1? Only ComC1 on the CR1000X works with PPS.
Try using PortPairConfig to set trigger levels to 3.3V instead of 5V.