Telit Wireless Solutions GE863-GPS Software User'S Manual Download Page 99

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GE863-GPS Software User Guide

1vv0300724 Rev. 2 - 24/01/07

5.4.6

VTG - Course Over Ground and Ground Speed

This sentence reports the actual course and speed relative to the ground.

Table I contains the values for the following example:

$GPVTG,309.62,T, ,M,0.13,N,0.2,K,A*23

Table I: VTG Data Format

Name

Example

Units

Description

Message ID

$GPVTG

VTG protocol header

Course

309.62

Measured heading

Reference

True

Course

degrees

Measured heading

Reference

Magnetic

Speed

0.13

knots

Measured horizontal speed

Units

Knots

Speed

0.2

km/hr

Measured horizontal speed

Units

Kilometers per hour

Mode

A=Autonomous, D=DGPS, E=DR

Checksum

*23

End of message termination

NOTE: SiRF Technology Inc. does not support magnetic declination. All “course over ground”
data are geodetic WGS84 directions.

page 99 of 109

Summary of Contents for GE863-GPS

Page 1: ...GE863 GPS Software User Guide GE863 GPS Software User Guide 1vv0300724 Rev 2 24 01 07...

Page 2: ...t 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 3 Advanced Operations 30 3 1 Accessing the phonebook 30 3 1 1 Preliminary phonebook set up...

Page 3: ...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 GN...

Page 4: ...andatory 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...

Page 5: ...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...

Page 6: ...ernal 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 t...

Page 7: ...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...

Page 8: ...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 Reproduction forbidden without Telit Commu...

Page 9: ...cted 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 devi...

Page 10: ...ing 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 sh...

Page 11: ...up resistor on the RESET line nor any totem pole digital output Using pull up resistor may bring to latch up problems on the GE863 GPS power regulator and improper functioning of the module The line R...

Page 12: ...for OK response after this initial command it is advisable to fix the port rate in order to eliminate possible errors in detecting the serial speed rate Send command AT IPR rate cr wait for OK respons...

Page 13: ...ason Action CPIN SIM PIN SIM is present and PIN is required to continue operations Proceed to par 2 5 2 3 CPIN SIM PUK SIM is present and 3 attempts to give SIM PIN have failed so SIM PUK is required...

Page 14: ...ou may need to go through procedure 2 5 2 4 2 5 2 4 Provide SIM PUK only if required see par 2 5 2 2 send command AT CPIN newpin cr where stands for the SIM PUK code e g 12345678 and newpin e g 1234 w...

Page 15: ...any network but is looking for a suitable one to register Repeat procedure at par 2 5 3 1 to see if it has found a suitable network to register in CREG 0 3 or CREG 1 3 Mobile has found some networks b...

Page 16: ...Answer COPS 2 I WIND 22288 1 SI MOBITEL GSM 29341 1 vodafone IT 22 210 1 SI MOBIL 29340 3 I TIM 22201 0 4 0 2 OK In this case the mobile is registered on the network I TIM which is a network from Ital...

Page 17: ...I may indicate 2 antenna bars 8 97 dBm MMI may indicate 2 antenna bars 9 95 dBm MMI may indicate 2 antenna bars 10 93 dBm MMI may indicate 3 antenna bars 11 91 dBm MMI may indicate 3 antenna bars 12 8...

Page 18: ...may happen that the quality on the GSM radio link is very good and hence the reported ber is 0 good quality but the quality of the remaining path to the other party is very bad and hence the final da...

Page 19: ...ization area code id cell identifier arfcn assigned radio frequency channel dBm received signal strength in dBm same as decoded rssi value timadv timing advance For example command AT MONI 0 cr Answer...

Page 20: ...used only to gather information on network name and signal strength to check if mobile is registered or is looking for a suitable network to register to use always the CREG command This is due to the...

Page 21: ...lly the internal path is used for a handset function while the external is used for handsfree function There are two way to switch between these two paths SOFTWARE by using the command AT CAP n with n...

Page 22: ...ber between 0 and 10 representing the volume setting 0 minimum volume 10 maximum volume wait for OK response NOTE The volume setting refers to the ACTIVE path ear line and is stored each time When cha...

Page 23: ...ed is busy retry later NO ANSWER The receiver did not answer the call retry later NO CARRIER Call placing has not been successful check for mobile registration and signal strength For example 1 Let s...

Page 24: ...p the voice call Send command ATH cr wait for response OK TIP during the voice call the device remains in command mode so the escape sequence must not be issued before sending commands Reproduction fo...

Page 25: ...mmand CBST The syntax for the command is AT CBST mod 0 ce These parameters can be selected as seen in the table Command Modulation Speed bps Connection Element AT CBST 0 0 1 Autobauding non transparen...

Page 26: ...1 Dial a given phone number Send command ATD PhoneNumber cr where PhoneNumber is the phone number to be dialed wait for response Response Reason Action CONNECT 9600 The called modem is now on line exc...

Page 27: ...cr response CONNECT 9600 2 7 3 Closing the Data call 2 7 3 1 Exit the data mode and enter the command mode Send escape sequence wait the escape sequence pause time see S12 parameter wait for response...

Page 28: ...is enabled and a voice call is incoming CRING ASYNC The extended format of incoming call indication is enabled and an asynchronous transparent data call is incoming CRING REL ASYNC The extended format...

Page 29: ...DATA one and the modem handshaking has not been successful check for mobile registration and signal strength and modem settings OK The incoming call was a VOICE call and is now active proceed ahead TI...

Page 30: ...omatically at each call originated and insertion or search on it is not possible the only operations allowed are recall read and delete MC SIM missed calls list CPBW and CPBF are not applicable for th...

Page 31: ...e operations insert SIM PIN see par 2 5 2 3 CMS ERROR 311 SIM is present and PIN is required to continue operations insert SIM PIN see par 2 5 2 3 CME ERROR 12 SIM is present and PUK is required to co...

Page 32: ...storage when selecting the FD storage the PIN2 must have been inserted or the FD facility must have been enabled If CPBS command reports CME ERROR 17 then enable the facility with command CLCK see par...

Page 33: ...of the PB record wait for response in the format CPBF index number type name OK where index is the record number on the PB Number is the phone number type is the type of number 145 international numb...

Page 34: ...lect the desired storage as active see par 3 1 1 1 Then send command AT CPBR index cr where index is the index number of the desired PB record to be read wait for response in the format CPBR index num...

Page 35: ...BR 9 0404192111 129 Fabrizio OK 3 1 4 Phonebook entry Write As first thing you must select the desired storage as active see par 3 1 1 1 Then send command AT CPBW index number type name cr where index...

Page 36: ...5 2 4 CME ERROR 13 SIM defect Check SIM insertion or require a new SIM not defected and repeat from par 2 5 2 2 CMS ERROR 313 SIM defect Check SIM insertion or require a new SIM not defected and repe...

Page 37: ...nvalid index out of PB storage limits check index number and retry CME ERROR 10 SIM not present Check SIM or require SIM insertion and repeat from par 2 5 2 2 CMS ERROR 310 SIM not present Check SIM o...

Page 38: ...hone number index position to do it use the CPBF command Once the index number is known set up the device for the type of call you want to dial Then send command ATD index cr where index is the index...

Page 39: ...300724 Rev 2 24 01 07 AT FCLASS 8 cr response OK AT CAP 2 cr OK AT CLVL 8 cr OK AT CMUT cr CMUT 0 and Dial ATD 7 cr OK Reproduction forbidden without Telit Communications S p A written authorization A...

Page 40: ...ication is enabled and an asynchronous transparent data call is incoming CRING SYNC The extended format of incoming call indication is enabled and a synchronous transparent data call is incoming CRING...

Page 41: ...is the phone number type is the type of number 145 international numbering scheme 129 national numbering scheme subaddress is the subaddress of the calling party satype is the type of subaddress alpha...

Page 42: ...er 391234567890 and extended incoming calls indication is disabled while CLIP is enabled you ll see ring indication RING CLIP 391234567890 145 NOTE this does not mean that the incoming call is an inte...

Page 43: ...I temporary mode presentation restricted 4 CLI temporary mode presentation allowed NOTE The m parameter reports the status of the service at network level If the CLIR service is not provisioned then i...

Page 44: ...ing International Calls Barring Outgoing International Calls except to Home Country Barring All Incoming Calls Barring Incoming Calls when Roaming outside the home country All Barring services applica...

Page 45: ...barred CME ERROR 4 operation not supported the service required is not available Check command syntax and service code CME ERROR 30 no network service Check for registration see par 2 5 3 1 and signal...

Page 46: ...sponse Reason Action OK Barring is now enabled disabled all incoming calls will be barred unbarred ERROR some error occurred Enable the extended error codes report see par 2 5 2 1 and retry CME ERROR...

Page 47: ...pported the service required is not available Check command syntax CME ERROR 30 no network service Check for registration see par 2 5 3 1 and signal strength CME ERROR 16 wrong network password check...

Page 48: ...ated by mobile and the network password of your operator is 0000 command AT CLCK AO 1 0000 cr response OK 3 2 4 5 Barring Unbarring All Outgoing International Calls Send command AT CLCK OI en pwd cr w...

Page 49: ...Barring pwd is the network password required to change facility status wait for response Response Reason Action OK Barring is now enabled disabled all outgoing international calls except to Home Coun...

Page 50: ...e par 2 5 2 1 and retry CME ERROR 4 operation not supported the service required is not available Check command syntax CME ERROR 30 no network service Check for registration see par 2 5 3 1 and signal...

Page 51: ...2 3 770 Hz 4 5 6 852 Hz 7 8 9 941 Hz 0 NOTE The GSM system architecture defines that the audio signal of the DTMF tones is inserted by the network switches on commands sent by the Mobile Station MS T...

Page 52: ...stered on the network and reachable for incoming calls or SMS If a call income during the power save then the module will wake up and proceed normally with the unsolicited incoming call code The DTR f...

Page 53: ...ed by default when the device starts up in order to guarantee that even without the DTR line support it is possible to exchange commands with the module for this reason the power saving setting comman...

Page 54: ...matically the read PDU into text and viceversa By using TEXT mode the PDU data encoding knowledge is not needed and operations are easier For this reason we will use the TEXT mode to explain how to op...

Page 55: ...in the SIM card until it is changed or deleted so this operation may be done only once if the SIM Card is not changed The setting is maintained even after power down For example 1 Let s assume you wa...

Page 56: ...reject new received message unsolicited result codes when TA TE link is reserved otherwise forward them directly to the TE 2 Buffer unsolicited result codes in the TA in case the DTE is busy and flus...

Page 57: ...GSM 03 40 pid Protocol Identifier dcs Data Coding Scheme sca Service Centre address string type converted in the currently selected character set see CSCS length text length data TP User Data Class 2...

Page 58: ...is sent CDSI memr index where memr memory storage where the new message is stored SM index location on the memory where SM is stored bfr buffered result codes handling method 0 TA buffer of unsolicite...

Page 59: ...ive is unsolicited code CDSI SM 8 3 5 1 5 Set Text Mode Parameters only in TEXT mode When the device is set to operate with Text SMS not with PDU the SMS parameters that usually reside on the header o...

Page 60: ...corresponding to 12 hours VP 143 x 30 minutes 168 to 196 corresponding to VP 166 x 1 day 197 to 255 corresponding to VP 192 x 1 week If in absolute format it is a string in the format gg MM YY hh mm s...

Page 61: ...Mail 51 55 reserved 5 combinations 56 62 values specific to each SC usage based on mutual agreement between the SME and the SC 7 combinations available for each SC 63 A GSM mobile station The SC conv...

Page 62: ...0 NOTE Not all the DCS combinations described in the GSM 3 38 are supported both by the network and by the Telit GE863 GPS Some features may be not implemented at network level or at device level resu...

Page 63: ...ample 29 06 02 at 02 20 in the time zone of Italy 1 29 06 02 02 20 00 1 Protocol ID implicit SMS sent to a mobile terminal corresponding to a value 0 Data Coding Scheme Default Alphabet Class 0 e g im...

Page 64: ...tals max number of SMS that mems can contain From this response you can check if the selected storage has room for new SMSs the free positions in the storage X where X can be r w s are totalX usedX 3...

Page 65: ...Let s assume you have the IRA code 0x6B and you want to find the corresponding character From the table you find at the position most significant Nibble 6 least significant Nibble B Hence the characte...

Page 66: ...2 1 and retry CMS ERROR 330 SMSC address unknown Insert SMSC address see par 3 5 1 3 CMS ERROR 322 Memory Full memory is full hence delete some records and retry NOTE if command is aborted with ESC c...

Page 67: ...ence number proceed ahead ERROR some error occurred Enable the extended error codes report see par 2 5 2 1 and retry CMS ERROR 330 SMSC address unknown Insert SMSC address see par 3 5 1 3 CMS ERROR 41...

Page 68: ...ith CTRL Z character 0x1A hexadecimal or abort command with ESC character 0x1B hexadecimal wait for response Response Reason Action CMGS mr OK Message has been successfully sent mr represents the mess...

Page 69: ...inserted the SMS message text to be sent conclude text with the character CTRL Z response CMGW 4 OK In this case the new SMS was successfully sent to the SC and its network reference number is 4 Do no...

Page 70: ...described on the previous paragraphs command AT CMGD 3 response OK In this case the SMS was successfully deleted 2 Let s assume you want to delete a received SMS that was stored to the index position...

Page 71: ...set is the one selected with command CSCS NB this optional field is currently not supported sca Service Centre number tooa toda tosca type of number oa da sca 129 number in national format 145 number...

Page 72: ...Message for Text Mode SMS RECEIVING The message was received REC from the number 393381234567890 at 12 30 04 the day 29 06 01 in the European time zone 1 After this read command the message at index 5...

Page 73: ...xt NOTE If status of the message is received unread status in the storage changes to received read For example 1 Let s assume you want to list all the SMS received read that are stored We suppose you...

Page 74: ...pin setup Before using the GPIO pin you must configure them to select their direction or alternate function 3 6 1 1 Setting GPIO pin as OUTPUT When you set a GPIO as output you must specify also the v...

Page 75: ...4 GPIO4 13 GPIO13 5 GPIO5 14 GPIO14 6 GPIO6 15 GPIO15 7 GPIO7 16 GPIO16 8 GPIO8 17 GPIO17 9 GPIO9 18 GPIO18 value is a dummy value can be either 0 dummy value 1 dummy value wait for response OK NOTE T...

Page 76: ...7 9 GPIO9 18 GPIO18 wait for response in the format GPIO dir stat OK where dir GPIO pin direction setting stat status of the pin 0 LOW 1 HIGH NOTE In case the GPIO pin direction is set to ALTERNATE FU...

Page 77: ...n this case the GPIO6 pin was set in alternate function direction and therefore works as alarm output The reported status LOW has no meaning 3 6 2 2 Setting GPIO pin output status To set the pin statu...

Page 78: ...K TIP Remember that the alternate function places the GPIO5 pin always in OUTPUT direction NOTE The GPIO5 direction setting is saved and will be kept after a power off The saving can be applied only f...

Page 79: ...PIO7 pin as buzzer output function the pin will output a waveform suitable to drive a Buzzer provided a simple external mosfet driver is developed and that the SRP settings are adequate To set the pin...

Page 80: ...724 Rev 2 24 01 07 AT GPIO 7 0 2 cr response OK In this case the GPIO7 pin was successfully put in buzzer output direction Reproduction forbidden without Telit Communications S p A written authorizati...

Page 81: ...already ON at alarm trigger time simply proceed with the Alarm action Once Woken up the Telit GE863 GPS proceeds with the chosen action that can be issue an unsolicited code ALARM user_text on the se...

Page 82: ...al time and GMT two last digits are mandatory range is 47 48 NOTE If the parameter is omitted the behavior of Set command is the same as Read command wait for response OK TIP Remember that the string...

Page 83: ...wo digits seconds 00 60 zz signed two digits timezone 11 11 type is the Alarm behavior 0 reserved for other equipment use 1 the MODULE simply wakes up fully operative as if the ON OFF button had been...

Page 84: ...e OK TIP Remember that the string time has to be encapsulated in double brackets furthermore the Alarm time will not be computed for different timezone therefore the alarm time will always refer to th...

Page 85: ...re the module starts the alarm activity but not the network activity permitting some operations to be done by the controlling application without registering the mobile in the network To check if the...

Page 86: ...alarm in order to raise the GPIO6 pin to power up the controlling application too command AT CALA 02 11 07 13 24 30 01 0 6 TIME TO MEASURE SMS cr response OK shutdown the GE863 GPS and successively th...

Page 87: ...e GPIO6 pin to power up the controlling application too command AT CALA 02 11 07 14 24 47 01 0 6 TIME TO MEASURE SMS cr response OK shutdown the GE863 GPS and successively the controlling application...

Page 88: ...case the arrival point must have a modem to connect to Landline ISDN or GSM CSD The connection establishment procedure defines a particular path where all the information exchanged between the two pee...

Page 89: ...are allocated dynamically on demand and the data exchanged is organized into packets typically TCP IP furthermore the maximum transfer speed can be much faster than GSM CSD An example of GPRS connecti...

Page 90: ...olling application must have its own TCP IP protocol stack embedded to decode the packets that arrive from GPRS and encode the ones to be sent through the internet There are few considerations than mu...

Page 91: ...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 8V 80 TX_GPS_BIN G...

Page 92: ...itial position and velocity calculations using an earth centered earth fixed ECEF coordinate system Results may be converted to an earth model geoid defined by the selected datum For GE863 GPS the def...

Page 93: ...his specification The actually supported version is 2 2 The provided NMEA sentences are GGA Time position and fix type data GLL Latitude longitude UTC time of position fix and status GSA GPS receiver...

Page 94: ...Longitude 12158 3416 dddmm mmmm E W Indicator W E east or W west Position Fix Indicator 1 See Table B Satellites Used 07 Range 0 to 12 HDOP 1 0 Horizontal Dilution of Precision MSL Altitude 9 0 meter...

Page 95: ...Table C Name Example Units Description Message ID GPGLL GLL protocol header Latitude 3723 2475 ddmm mmmm N S Indicator N N north or S south Longitude 12158 3416 dddmm mmmm E W Indicator W E east or W...

Page 96: ...Message ID GPGSA GSA protocol header Mode 1 A See Table E Mode 2 3 See Table F Satellite Used1 Satellite used in solution 1 07 Sv on Channel 1 Satellite Used1 02 Sv on Channel 2 Satellite Used1 PDOP 1...

Page 97: ...7 07 79 048 42 02 51 062 43 26 36 256 42 27 27 138 42 71 GPGSV 2 2 07 09 23 313 42 04 19 159 41 15 12 041 42 41 Table G GSV Data Format Name Example Units Description Message ID GPGSV GSV protocol hea...

Page 98: ...atus A A data valid or V data not valid Latitude 3723 2475 ddmm mmmm N S Indicator N N north or S south Longitude 12158 3416 dddmm mmmm E W Indicator W E east or W west Speed Over Ground 0 13 knots Co...

Page 99: ...header Course 309 62 Measured heading Reference T True Course degrees Measured heading Reference M Magnetic Speed 0 13 knots Measured horizontal speed Units N Knots Speed 0 2 km hr Measured horizonta...

Page 100: ...e NMEA serial port default 4800 bps 8 n 1 there must be presence of the NMEA sentences 5 5 1 Controlled mode The GE863 GPS is by factory default set to controlled mode With the command AT GPSD device...

Page 101: ...by the GSM part The GPS receiver is usable if the GSM module is switched on or at least in power saving This command also switch off the GPS antenna supply Syntax of the command AT GPSP status Where s...

Page 102: ...tion clears all initialization data in the GPS receiver and subsequently reloads the data that is currently displayed in the Receiver Initialization Setup screen The almanac is retained but the epheme...

Page 103: ...supplied by the module default NOTE if current type is 0 either GPSAV and GPSAI have no meaning 5 6 3 1 GPS Antenna Current and Voltage Readout With the commands AT GPSAV and AT GPSAI is possible to m...

Page 104: ...difications 5 6 6 READ ACQUIRED GPS POSITION This command allows reading the acquired position of the GPS receiver Syntax of the command AT GPSACP The response sintax is GPSACP UTC latitude longitude...

Page 105: ...d mm Course over Ground degrees True Values ddd 000 to 360 degrees mm 00 to 59 minutes spkm referred to VTG sentence xxxx x Speed over ground Km hr spkn referred to VTG sentence xxxx x Speed over grou...

Page 106: ...e USB port implemented on the Telit Evaluation Kit EVK2 can be used to connect to a Windows based PC on which the specific program for updating the Software TFI can be run 6 1 Step by Step upgrade pro...

Page 107: ...hat the power supply must not be disconnected during the firmware update 6 Select the right COM port and speed Note that to go faster than 115200 you need a special hardware on the PC Then Press the D...

Page 108: ...e Telit GE863 module is now programmed with the new firmware NOTE the above pictures show how the application dialogs appear for the GM862 product The GE863 TFI application will look similar Reproduct...

Page 109: ...Change Log Revision Date Changes ISSUE 0 21 03 06 First release ISSUE 1 28 08 06 Review of all the document ISSUE 2 24 01 07 Review of all the document Reproduction forbidden without Telit Communicati...

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