Trimble Outdoors 58052-00 Benutzerhandbuch
A TRIMBLE STANDARD INTERFACE PROTOCOL (TSIP)
1 4 0 Copernicus GPS Receiver
Command Packet 0x3A - Request Last Raw Measurement
This packet requests the most recent raw measurement data for one specified satellite.
The GPS receiver returns packet 0x5A if data is available.
The GPS receiver returns packet 0x5A if data is available.
.
Command Packet 0x3C - Request Current Satellite Tracking Status
This packet requests the current satellite tracking status. The GPS receiver returns
Packet
Packet
0x
5C if data is available.
Report Packet 0x41 - GPS Time
This packet provides the current GPS time of week and the week number. The GPS
receiver sends this packet in response to Packet
receiver sends this packet in response to Packet
0x
21 and during an automatic packets
update cycle. The data format is shown below.
Note – UTC time lags behind GPS time by an integer number of seconds; UTC =
(GPS time) - (GPS UTC offset).
(GPS time) - (GPS UTC offset).
C
WARNING –
GPS week number runs from 0 to 1023 and then cycles back to week #0.
week # 0 began January 6, 1980. The first cycle back to week #0 was on August 22, 1999.
The extended GPS week number however, does not cycle back to 0. For example: the
week # for August 22, 1999 = 1024; the Week # for April 1, 2002 = 1160.
The extended GPS week number however, does not cycle back to 0. For example: the
week # for August 22, 1999 = 1024; the Week # for April 1, 2002 = 1160.
Table A.23
Command Packet 0x3C Data Format
Byte
Item
Type
Value
Definition
0
Satellite #
UINT8
0
1 - 32
All satellites in the current track
set.
set.
Desired satellite.
Table A.24
Command Packet 0x3C Data Format
Byte
Item
Type
Value
Definition
0
Satellite #
UINT8
0
1 - 32
All satellites in the current track
set.
set.
Desired satellite.
Table A.25
Report Packet 0x41 Data Formats
Byte
Item
Type
Units
0-3
GPS time of week
Single
seconds
4-5
Extended GPS week number
INT16
weeks
6-9
GPS UTC offset
Single
seconds