5 gps operations, 1 introduction, 2 ge863-gps serial ports – Rainbow Electronics GE863-GPS low power User Manual
Page 97: 1 gps serial port a (sirf binary)
GE863-GPS Software User Guide
1vv0300724 Rev. 3 - 05/07/07
Reproduction forbidden w ithout Telit Communications S.p.A. w ritten authorization - All Rights Reserved
page 97 of 122
5 GPS operations
5.1 Introduction
The GE863-GPS module is equipped with a SiRFStar III GPS receiver that is controllable by the GSM
modem using a setof AT commands or dedicated NMEA sentences.
5.2 GE863-GPS Serial Ports
4 serial ports are available on the module:
•
MODEM SERIAL PORT
•
MODEM SERIAL PORT 2 (GPS CONTROL PORT)
•
GPS SERIAL PORT A (SIRF BINARY)
•
GPS SERIAL PORT B (NMEA)
5.2.1 GPS SERIAL PORT A (SIRF BINARY)
This port is carrying out the GPS navigation data in SIRF BINARY format.
The default configuration is 57600 bps, 8, n, 1
It is available on the following pins:
PIN #
NAME
DESCRIPTION
TYPE
78
RX_GPS_BIN
GPS RX Data (Sirf Binary)
CMOS 2.8 V
80
TX_GPS_BIN
GPS TX Data (Sirf Binary)
CMOS 2.8 V
The typical application that permits also to control the GPS part by the GSM modem is the following:
PIN #
NAME
NAME
PIN#
25
TX_TRA CE
RX_GPS _BIN
78
26
RX_TRACE
TX_GPS_B IN
80
This configuration is also settable on the EVK board.
This configuration is defined as “Controlled Mode".