Siemens XT55 User Manual
Page 10
XT55 GPS Startup User’s Guide
Confidential/Released
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Page 10 of 13
28.06.2004
• Click the Connection/Disconnection icon on the toolbar by the up-down button (see
Figure 5), the program will then automatically connect to Data Source and starts
evaluating.
Figure 5: SiRFstar demo on selected COM port
• The output messages can be viewed in the Development Data screen. For a description
of NMEA messages refer to [3]. The valid/invalid protocols can be recognized on the
$GPRMC protocol as shown in figure below. The capital letter “A” means, incoming
protocols are valid while the capital letter “V” means incoming protocols are invalid.
Figure 6: Development data screen
Click this button to
open and close the
connection.