2 gps reset – Rainbow Electronics GM862-GPS User Manual
Page 106
GM862-GPS Software User Guide
1vv0300729 Rev. 5 - 05/07/07
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page 106 of 120
$GPSP: 0
OK
NOTE:
Due to the fact that VAUX1 could also be used to supply the Camera, if this device is switched
on the command AT$GPSP=0 will not be executed
5.6.2 GPS RESET
With the command AT$GPSR=<reset type> is possible to reset the GPS module.
Parameter:
<reset type>
0 - Hardware reset: the GPS receiver is reset and restarts by using the values stored in the internal
memory of the GPS receiver.
1 - Coldstart (No Almanac, No Ephemeris): this option clears all data that is currently stored in the
internal memory of the GPS receiver including position, almanac, ephemeris, and time. The stored
clock drift however, is retained. It is available in controlled mode only.
2 - Warmstart (No ephemeris): this option clears all initialization data in the GPS receiver and
subsequently reloads the data that is currently displayed in the Receiver Initialization Setup
screen. The almanac is retained but the ephemeris is cleared. It is available in controlled mode
only.
3 - Hotstart (with stored Almanac and Ephemeris): the GPS receiver restarts by using the values
stored in the internal memory of the GPS receiver; validated ephemeris and almanac. It is available in
controlled mode only.
Example :
Let’s suppose to perform a cold start of the GPS receiver.
AT$GPSR=1<cr>
OK
The Receiver will clear all the parameters in its memory and it will start a new scanning of the
available satellites.