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From: | Steve Bourland |
Subject: | PPS fix determination vs. cgps? |
Date: | Tue, 19 Jan 2021 16:27:49 -0600 |
User-agent: | Alpine 2.21 (DEB 202 2017-01-01) |
gpsd:INFO: PPS:/dev/ttyS0 Assert hooks called clock: 1611094941.139482499 real: 1611094941.000000000: no fix
I have tried to sift through the source code to figure out how the PPS determines the fix status vs. how cgps and/or xgps determine the fix status, to better understand why I am getting conflicting results. The device is sending NMEA sentences GPRMC, GPGGA, GPGSA, and GPGSV.
Is it easy to point me to which files in the source I should be looking at to get this figured out?
Thanks, Steve
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