Table of Contents
Advertisement
4.2.1 SERIAL PORT DEFAULT SETTINGS
The MiLLennium-GLONASS GPSCard communicates with your PC or terminal via the COM1 or COM2 serial
port. For communication to occur, both the MiLLennium-GLONASS GPSCard and the operator interface have to
be configured properly. The MiLLennium-GLONASS GPSCard's default port settings are as follows:
RS232C, 9600 bps, no parity, 8 data bits, 1 stop bit, no handshaking, echo off
Changing the default settings requires using the COMn command, which is described in the MiLLennium
Command Descriptions Manual. It is recommended that you become thoroughly familiar with these commands
and logs to ensure maximum utilization of the MiLLennium-GLONASS GPSCard's capabilities.
NOTE:
Although the MiLLennium-GLONASS GPSCard can operate at bit rates as low as 300 bps, this may
not always be desirable. For example, if several data logs are active (i.e. a significant amount of
information needs to be transmitted every second) but the bit rate is set too low, data will overflow the
serial port buffers and cause an error condition in the receiver status.
4.2.2 COMMUNICATING USING A REMOTE TERMINAL
One method of communicating with the MiLLennium-GLONASS GPSCard is through a remote terminal. The
MiLLennium-GLONASS GPSCard has been pre-wired to allow proper RS232C interface with your data terminal.
To communicate with the terminal the MiLLennium-GLONASS GPSCard only requires the RX, TX, and GND
lines to be used; handshaking is not required, although it can optionally be used. Ensure that the terminal's
communications set-up matches the MiLLennium-GLONASS GPSCard RS232C protocol.
4.2.3 COMMUNICATING USING A PERSONAL COMPUTER
An IBM-compatible PC can be set up to emulate a remote terminal as well as provide the added flexibility of
creating multiple-command batch files and data logging storage files. Any standard communications software
package that emulates a terminal can be used to establish bi-directional communications with the MiLLennium-
GLONASS GPSCard.
You can create command batch files using any text editor; these can then be directed to the serial port that is
connected to the MiLLennium-GLONASS GPSCard using a communications software package. This is discussed
in greater detail later in this chapter.
4.3 GETTING STARTED
Included with your MiLLennium-GLONASS GPSCard are NovAtel's GPSolution, Convert and Loader programs,
together with their on-line help. GPSolution is a Microsoft Windows compatible program that allows you to access
the MiLLennium-GLONASS GPSCard's many features without struggling with communications protocol or
writing special software. GPSolution automatically recognizes the model type of the MiLLennium-GLONASS
GPSCard that you are using and adjusts the displays accordingly. Figure 4.2 shows a sample GPSolution screen.
The Convert utility is a Windows-based utility that allows you to convert between NovAtel ASCII and binary file
formats, and strips unwanted records for data file compilation. NovAtel's Loader program is a DOS utility program
designed to facilitate program and model updates.
GPS/GLONASS Receiver User Manual Rev 1
4 Operation
25
Advertisement
Table of Contents
