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Copernicus GPS Receiver 133
TRIMBLE STANDARD INTERFACE PROTOCOL (TSIP) A
Command Packet 0x1E - Clear Battery Backup, then Reset
This packet commands the GPS receiver to clear all battery back-up data and to
perform a software reset. This packet contains one data byte.
Table A.15 Command Packet 0x1E
C
WARNING – All almanac, ephemeris, current position, mode, and communication port
setup information are reset to the default values when executing the “Factory Reset”
command. In normal use this packet should not be sent.
Command Packet 0x1F - Request Software Versions
This packet requests information about the version of software running in the
Navigation and Signal Processors. This packet contains no data. The GPS receiver
returns Packet
0x45.
Command Packet 0x21 - Request Current Time
This packet requests current GPS time. This packet contains no data. The GPS
receiver returns Packet
0x41.
Command Packet 0x23 - Initial Position (XYZ ECEF)
This packet provides the GPS receiver with an approximate initial position in XYZ
coordinates. This packet is useful if the user has moved more than about 1,000 miles
since the previous fix. (Note that the GPS receiver can initialize itself without any
data from the user; this packet merely reduces the time required for initialization.)
This packet is ignored if the receiver is already calculating positions. The data
format is shown below.
Note – To initialize using the Latitude-Longitude-Altitude representation, use
Command Packet
0x2B.
Table A.16 Command Packet 0x23
Byte Item Type Value Definition
0 Reset mode UINT 8 0x4B
0x46
0x4D
Cold start: Erase BBRAM and
restart
Factory reset: Erase BBRAM and
Flash and restart
Enter Monitor Mode
Byte Item Type Units
0-3 X Single Meters
4-7 Y Single Meters
8-11 Z Single Meters