Rainbow Electronics GM862-QUAD-PY User Manual

Page 426

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AT Commands Reference Guide

80000ST10025a Rev. 5 - 09/07/08

Reproduction forbidden without Telit Communications S.p.A. written authorization - All Rights Reserved

page 426 of 434

$GPSCON - Direct Access to GPS Module

SELINT 0 / 1 / 2

AT$GPSCON

Execution command allows to set the GSM baseband in transparent mode
in order to have a direct access to the serial port of the GPS module. The
GSM module will transfer directly the received data to the GPS module,
without checking or elaborating them.

Note: the new setting is stored through $GPSSAV

Note: the command is usable only in “controlled mode”.

Note: in case of an incoming call from GSM, this will be visible on the RING
pin of serial port.

Note: the escape sequence is “+++”

Note: the Serial Port Speed can be maximum 38400 bps

AT$GPSCON=?

Test command returns the OK result code

3.5.7.11.13 Set The GPS Module In Programming Mode - $GPSPRG

$GPSPRG - Set The GPS Module In Programming Mode

SELINT 0 / 1 / 2

AT$GPSPRG

Execution command allows to switch on the GPS part in BOOT mode and
set the GSM processor in Transparent Mode, in order to permit the re-
programming of th GPS flash memory.

Note: the escape sequence is “+++”

Note: it is possible to issue $GPSPRG only if the Serial Port Speed is fixed
38400 bps

AT$GPSPRG?

Read command has the same effect as Execution command.

AT$GPSPRG=?

Test command returns the OK result code

3.5.7.11.14 Set The GPS Module In Power Saving Mode - $GPSPS

$GPSPS - Set The GPS Module In Power Saving Mode

SELINT 0 / 1 / 2

AT$GPSPS=
<mode
[,<PTF_Period>]

Set command allows to set the GPS module in Power saving mode.

Parameters:
<mode> - the GPS receiver can operate in three modes
0 - full power mode, power saving disabled (default); it is the standard

operating mode; power is supplied to the receiver continuously and the
GPS receiver continues to operate without an interrupt.

1 - tricklepower mode; the power to the SiRF chipset is cycled

periodically, so that it operates only a fraction of the time; power is
applied only when a position fix is scheduled.

2 - push-to-fix mode; the GPS receiver is generally off, but turns on

frequently enough to collect ephemeris data to maintain the GPS1 real-

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