Table Of Contents - u-blox RCB-F9T Integration Manual

Contents
1 Integration manual structure............................................................................................ 5
2 System description...............................................................................................................6
2.1 Overview.................................................................................................................................................... 6
2.1.1 Differential timing.......................................................................................................................... 6
2.2 Architecture..............................................................................................................................................6
2.2.1 Block diagram..................................................................................................................................6
3 Receiver functionality.......................................................................................................... 7
3.1 Receiver configuration........................................................................................................................... 7
3.1.1 Changing the receiver configuration..........................................................................................7
3.1.2 Default GNSS configuration.........................................................................................................7
3.1.3 Default interface settings............................................................................................................ 8
3.1.4 Basic receiver configuration.........................................................................................................8
3.1.5 Differential timing mode configuration..................................................................................... 9
3.1.6 Legacy configuration interface compatibility........................................................................ 12
3.1.7 Navigation configuration............................................................................................................ 12
3.2 Geofencing..............................................................................................................................................16
3.2.1 Introduction................................................................................................................................... 16
3.2.2 Interface......................................................................................................................................... 17
3.2.3 Geofence state evaluation......................................................................................................... 17
3.3 Interfaces................................................................................................................................................17
3.3.1 UART interface............................................................................................................................. 17
3.4 Predefined PIOs..................................................................................................................................... 18
3.4.1 RESET_N........................................................................................................................................ 18
3.4.2 TIMEPULSE................................................................................................................................... 18
3.5 Antenna supervisor.............................................................................................................................. 18
3.5.1 Antenna voltage control - ANT_OFF........................................................................................18
3.5.2 Antenna short detection - ANT_SHORT_N............................................................................ 19
3.5.3 Antenna short detection auto recovery.................................................................................. 20
3.5.4 Antenna open circuit detection - ANT_DETECT................................................................... 20
3.6 Multiple GNSS assistance (MGA)..................................................................................................... 21
3.6.1 Authorization................................................................................................................................ 21
3.6.2 Multiple servers............................................................................................................................ 21
3.6.3 Preserving information during power-off................................................................................21
3.6.4 AssistNow Online......................................................................................................................... 22
3.7 Clocks and time.....................................................................................................................................25
3.7.1 Receiver local time.......................................................................................................................25
3.7.2 Navigation epochs....................................................................................................................... 26
3.7.3 iTOW timestamps........................................................................................................................26
3.7.4 GNSS times................................................................................................................................... 27
3.7.5 Time validity.................................................................................................................................. 27
3.7.6 UTC representation..................................................................................................................... 27
3.7.7 Leap seconds................................................................................................................................ 28
3.7.8 Real time clock............................................................................................................................. 29
3.7.9 Date................................................................................................................................................. 29
UBX-19003747 - R04
Early production information
Contents
RCB-F9T - Integration manual
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