Telit Wireless Solutions GE863 Sicherheitsleitfaden

GE863-GPS Software User Guide

1vv0300724 Rev. 2 - 24/01/07

GE863-GPS Software User Guide

1vv0300724 Rev. 2 - 24/01/07

Contents:

1Overview .......................................................................................................4

2Basic Operations..........................................................................................5

2.1 Command Syntax ...................................................................................................................................5

2.1.1 Interface Style...................................................................................................................................5

2.2 Command Response Timeout................................................................................................................6

2.3 Turning ON the GE863-GPS.................................................................................................................9

2.4 Turning OFF the GE863-GPS.............................................................................................................10

2.5 Checking GSM device functionality ...................................................................................................12

2.5.1 Autobauding...................................................................................................................................12

2.5.2 SIM presence checking...................................................................................................................13

2.5.3 Network checking...........................................................................................................................15

2.6 Placing a Voice call...............................................................................................................................21

2.6.1 Voice call device set up..................................................................................................................21

2.6.2 Phone number dialing.....................................................................................................................23

2.6.3 Closing the voice call .....................................................................................................................24

2.7 Placing a CSD Data call (not GPRS) ..................................................................................................25

2.7.1 Data call device set up....................................................................................................................25

2.7.2 Phone number dialing (data call)....................................................................................................26

2.7.3 Closing the Data call.......................................................................................................................27

2.8 Answer an incoming Call.....................................................................................................................28

3Advanced Operations ................................................................................30

3.1 Accessing the phonebook .....................................................................................................................30

3.1.1 Preliminary phonebook set up........................................................................................................30

3.1.2 Phonebook entry search by Name..................................................................................................33

3.1.3 Phonebook entry read by Index......................................................................................................34

3.1.4 Phonebook entry Write...................................................................................................................35

3.1.5 Phonebook entry Delete..................................................................................................................37

3.1.6 Phonebook entry Dial.....................................................................................................................38

3.2 Distinguish Calls...................................................................................................................................40

3.2.1 Identify the Call type......................................................................................................................40

3.2.2 Identify the Caller...........................................................................................................................41

3.2.3 Restricting Calling Line Indication ................................................................................................42

3.2.4 Call Barring Control.......................................................................................................................44

3.3 DTMF tones ..........................................................................................................................................51

3.4 GSM Power Saving function ...............................................................................................................52

3.5 SMS handling........................................................................................................................................54

3.5.1 SMS device setup ...........................................................................................................................54

GE863-GPS Software User Guide

1vv0300724 Rev. 2 - 24/01/07

3.5.2 IRA character set............................................................................................................................64

3.5.3 Writing a New SMS to storage.......................................................................................................66

3.5.4 Sending an SMS previously stored.................................................................................................67

3.5.5 Sending a new SMS without storing it...........................................................................................68

3.5.6 Deleting an SMS.............................................................................................................................69

3.5.7 Reading an SMS.............................................................................................................................70

3.5.8 Listing a group of SMSs.................................................................................................................72

3.6 Using General Purpose Input/Output pins.........................................................................................74

3.6.1 GPIO pin setup ...............................................................................................................................74

3.6.2 GPIO pin use ..................................................................................................................................76

3.7 Clock/Alarm function...........................................................................................................................81

3.7.1 Clock date/time...............................................................................................................................81

3.7.2 Alarm function................................................................................................................................83

4GPRS operations........................................................................................88

4.1 Introduction ..........................................................................................................................................88

5GPS operations ..........................................................................................91

5.1 Introduction ..........................................................................................................................................91

5.2 GE863-GPS Serial Ports......................................................................................................................91

5.2.1 GPS SERIAL PORT A (SIRF BINARY) ......................................................................................91

5.2.2 GPS SERIAL PORT B (NMEA)....................................................................................................91

5.3 WGS 84..................................................................................................................................................92

5.4 NMEA 0183...........................................................................................................................................93

5.4.1 GGA - Global Positioning System Fixed Data...............................................................................94

5.4.2 GLL - Geographic Position - Latitude/Longitude..........................................................................95

5.4.3 GSA - GNSS DOP and Active Satellites........................................................................................96

5.4.4 GSV - GNSS Satellites in View .....................................................................................................97

5.4.5 RMC - Recommended Minimum Specific GNSS Data .................................................................98

5.4.6 VTG - Course Over Ground and Ground Speed ............................................................................99

5.5 Checking GPS device functionality...................................................................................................100

5.5.1 Controlled mode...........................................................................................................................100

5.6 CONTROLLING GPS RECEIVER.................................................................................................101

5.6.1 POWER CONTROL OF GPS RECEIVER .................................................................................101

5.6.2 GPS RESET..................................................................................................................................102

5.6.3 GPS ANTENNA MANAGEMENT.............................................................................................103

5.6.4 GPS PARAMETERS SAVE........................................................................................................104

5.6.5 RESTORE GPS PARAMETERS.................................................................................................104

5.6.6 READ ACQUIRED GPS POSITION..........................................................................................104

6Service and firmware update ..................................................................106

6.1 Step-by-Step upgrade procedure ......................................................................................................106

7Document Change Log............................................................................109

GE863-GPS Software User Guide

1vv0300724 Rev. 2 - 24/01/07

1 Overview

The purpose of this document is the description of some common AT command procedures that may

be used with the Telit GE863-GPS module.

In this document, all the basic functions of a mobile phone will be taken into account and for each one

of them, a proper command sequence will be suggested.

In the Advanced operation section the more useful services and features of the GSM network

supported by the Telit GE863-GPS module is taken into account and some command sequence and

usage are provided for each one of them.

This document and its suggested command sequences shall not be considered mandatory; instead,

the information given shall be used as a guide for properly using the Telit module. For further

commands and features that may not be explained in this document refer to the GE863-GPS Product

Description document where all the supported AT commands are reported.

NOTE

The information presented in this document is believed to be accurate and reliable. However, Telit

Communications S.p.A. assumes no responsibility for its use, nor any infringement of patents or other rights of

third parties, which may result from its use. No license is granted by implication or otherwise under any patent

rights of Telit Communications S.p.A. other than for circuitry embodied in Telit products. This document is

subject to change without notice.

GE863-GPS Software User Guide

1vv0300724 Rev. 2 - 24/01/07

2 Basic Operations

2.1 Command Syntax

In the next paragraphs the following notations are used:

<cr> represents the Carriage Return Character (13)

<lf> represents the Line Feed Character (10)

<xx> represents a parameter whatever name is in place of the xx. (< and > characters are

only for delimiting the parameter and must not be issued to the terminal).

[<xx>] represents an optional parameter whatever name is in place of the xx. ([ and ]

characters are only for delimiting the optional parameter and must not be issued to the

terminal).

2.1.1 Interface Style

The GE863-GPS module is using an AT interface that is defined in the document 80000ST10025a

(AT Commands Reference Guide). The specification defines 3 possible AT interfaces:

0 - AT command interface of the products, to the GM862-GSM and GM862-GPRS interface style

1 – AT interface of the products, to the GM862-PCS, PYTHON, QUAD-PY, TRIZIUM and GE863-

QUAD, PY interface style

2 - switches the AT command interface style of the product, to the new products like GE864, GC864

and the GPS products

The default interface for the GE863-GPS product is 2.

The switch between the different interfaces could also be performed with the #SELINT AT command.

Refer to the AT Commands Reference Guide for the full command description.

All the AT commands described in this specification is related to SELINT 2

GE863-GPS Software User Guide

1vv0300724 Rev. 2 - 24/01/07

2.2 Command Response Timeout

Every command issued to the Telit GE863-GPS returns a result response if response codes are

enabled (default) (see command ATQn). The time needed to process the given command and return

the response varies from command to command and may depend also from the network on which the

command may interact. As a result every command is provided with a proper timeout time, if this time

elapses without any result from the operation, then the ERROR response is reported as if the

operation was not successful.

The timeout time is quite short for commands that imply only internal set up commands, but may be

very long for command that interact with the network (or even Networks).

NOTE: In case no response is received after the timeout time has been elapsed, then try

repeating the last command and if still no response is received until the timeout time, then an

Unconditional Shutdown MUST be issued and then the device shall be powered ON again.

In the table below are listed all the commands whose timeout differs from the default 100 ms and their

effective timeout is reported:

Command Time-Out (Seconds)

+CBST 0.2

+CR 0.2

+CRC 0.2

+CRLP 0.2

+CSCS 0.2

+CEER 5

+CGMI 5

+CGMM 5

+CGMR 5

+CGSN 20

+CIMI 20

+CNUM 20

+CREG 5

+COPS 180

+CLCK 180

@CLCK 180

+CPWD 180

+CLIP 180

+CLIR 180

+CCFC 180

+CCWA 20

+CHLD 20

+CUSD 180

+CAOC 20

+CSSN 20

GE863-GPS Software User Guide

1vv0300724 Rev. 2 - 24/01/07

Command Time-Out (Seconds)

+CLCC 20

+CPAS 5

+CPIN 20

+CSQ 5

+CPBS 5

+CPBR 20

+CPBF 20

+CPBW 20

+CALM 5

+CRSL 5

+CLVL 5

+CMUT 5

+CACM 20

+CAMM 20

+CPUC 20

+CMEE 5

+VTS 20

+GMI 5

+GMM 5

+GMR 5

+GSN 20

I3 5

I4 5

I5 5

+CSMS 5

+CPMS 5

+CMGF 5

+CSCA 20

+CSMP 5

+CSDH 5

+CSAS 5

+CRES 5

+CNMI 5

+CMGS 180 / 5 for prompt”>”

+CMSS 180

+CMGW 5 / 5 for prompt”>”

+CMGD 5

+CMGR 5

+CMGL 5

#CAP 10

#SRS 10

#SRP 10

#STM 10

#PCT 10

GE863-GPS Software User Guide

1vv0300724 Rev. 2 - 24/01/07

Command Time-Out (Seconds)

#SHDN 10

#QTEMP 10

#SGPO 10

#GGPI 10

#MONI 10

#CGMI 5

#CGMM 5

#CGMR 5

#CGSN 20

#CIMI 5

+CGACT 180

+CGATT 180

+CGDATA 20

+CGDCONT 20

+CGPADDR 20

+CGQMIN 20

+CGQREQ 20

GE863-GPS Software User Guide

1vv0300724 Rev. 2 - 24/01/07

2.3 Turning ON the GE863-GPS

To turn on the GE863-GPS the pin ON# must be tied low for at least 1 second and then released.

A simple circuit to do it is:

ON#

Power ON impulse

GND

NOTE: don't use any pull up resistor on the ON# line. Using pull up resistor may bring to latch

up problems on the GE863-GPS power regulator and improper power off of the module. The

line ON# must be connected only in open collector configuration.

TIP: To check if power has raised it is possible to monitor the PWRMON line, when this line

goes high the module is powered on, but before it remains on the device needs other 900 ms

for software startup. Hence check the PWRMON line and 900 ms after its transition to high it is

possible to release the ON# pin.

When turning on the module, both devices (GSM and GPS) will be started.

The GPS antenna will be supplied and the receiver will start the scanning activity to achieve the Fix.

GE863-GPS Software User Guide

1vv0300724 Rev. 2 - 24/01/07

2.4 Turning OFF the GE863-GPS

The turning off of the device can be done in two ways:

•

•by software command

by hardware shutdown

When the device is shut down by software command or by hardware shutdown, it issues to the

network a detach request that informs the network that the device will not be reachable any more.

2.4.1.1 Software shutdown

•Send command AT#SHDN<cr>

•wait for

OK response

The device shuts down with the following sequence of activities:

•Detach from the network

•Module Shutdown

In the case of Network unavailability the detach will be attempted few seconds (typical 6secs).

After this timeout the module will be shut down.

2.4.1.2 Hardware shutdown

To turn OFF the GE863-GPS the pin ON# must be tied low for at least 2 second and then released.

The same circuitry for the power on can be used.

The device shuts down after the release of the ON# pin.

TIP: To check if the device has powered off, the hardware line PWRMON should be monitored.

When it goes low, the device has powered off.

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