Appendix C; Gps 25Lp Evaluation Kits - Garmin GPS 25 LP Technical Specification

GPS 25LP evaluation materials kit (part number 010-10197-00) is available from
GARMIN international. This kit includes two DB-9 connectors with solder pots, GA27A
GPS antenna with various mounting brackets, two 12 inch 12 conductor connectors,
technical specification, and software to monitor the GPS 25LP outputs and configure
the receiver.
To install the evaluation and configuration software run the program, setup, by using
the FILE - RUN command in Windows.
The NMEAVWR.EXE program in the GARMIN program group can accept NMEA data
from either the com1 or com2 PC serial port at 1200, 2400, 4800, 9600 or 19200 baud.
The default settings are com1 at 4800 baud. NMEAVWR receives NMEA sentences
and displays sentence information in a formatted display on the screen. The top
portion of the screen displays the 5 character identifier of sentences received, the age
in seconds since the last transmission, and a count of the number of times the
sentence has been received. The middle portion of the screen displays the most
recently received data in the sentence with the selected NMEA identifier (highlighted in
the top portion of the screen using the arrow keys). The lower portion contains a
formatted presentation of the currently selected sentence. In addition to receiving data
the program will also upload NMEA sentences to the sensor board. The ALT-U key
sequence will upload the file NMEA.TXT in the current directory to the unit. Received
data can also be logged to a file. NMEAVWR can be invoked from a DOS prompt:
<path>nmeavwr [/b:<baud>] [<port>] [log_file.txt]
where:
[ ] brackets indicate optional parameters
<path>
<baud>
<port> PC communications port
log_file.txt
Example:
If no options are used, the defaults are 4800 baud, com1, and no data logging.
The configuration program GPSCFG.EXE will configure the sensor boards based on
user selected parameters. Some program features include the ability to download
sensor board configuration, maintain different configurations in files, and perform
sensor board configurations quickly with the use of one function key. Online program
help is available.

Appendix C

GPS 25LP Evaluation Kits

DOS path to nmeavwr.exe if not in current directory
baud rate
ASCII log file of all received sentences
c:\garmin>nmeavwr /b:9600 com2 log_file.txt
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