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Deluo TRISTAR25 manual

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Table of contents for the manual

  • Page 1

    1 TRISTAR25 GPS Receiver Module Use r ’ s Guide[...]

  • Page 2

    Deluo Electronics http://www.deluo.com 2 Manual Rev ision His tory Revision Date Update Summary Issue A Decem ber 2002 Initial release Issue B February 2003 Add pins electric al character istics[...]

  • Page 3

    Deluo Electronics http://www.deluo.com 3 1 INTRODUCTIO N ............................................................................................... 5 1.1 O VER VIEW ............................................................................................................. 5 1.2 F EA TURES .....................................................[...]

  • Page 4

    Deluo Electronics http://www.deluo.com 4 4.2.2 Binary Ou tput Messages .................................................................................. 25 4.2.2.1 EverMore Binary Output Mess age 0x02: N avigation Data ................................... 25 4.2.2.2 EverMore Binary Output Mess age 0x04: D OP Data ...................................[...]

  • Page 5

    Deluo Electronics http://www.deluo.com 5 1 Introduction 1.1 Overv iew The TI ST AR25 GPS Rece iver is int ended f or use in a wide ran ge of app lications . The r eceiver sim ultaneously track s up to t welve satel lites, pro vides ac curate satellit e positi oning dat a with fast tim e-to-f irst-fix (TT FF) and lo w power c onsum ption. It is des [...]

  • Page 6

    Deluo Electronics http://www.deluo.com 6 2 Receiver Operation Upon power up, after initia l self- test has c ompleted, t he TIST AR25 will begin s atellite acquisitio n and track ing proces s. Under n orm al open-sk y conditio n, posi tion-f ix can be achieve d within a pproxim ately 45 seco nds (withi n 15 sec onds if val id ephem eris data is alr[...]

  • Page 7

    Deluo Electronics http://www.deluo.com 7 3 Hardw are Interface 3.1 RF Connector The RF c onnector is a 50 ohm str aight MCX snap-on coax ial RF jack receptac le. 3.2 Interface Connector There ar e three in terface c onnectors, th e first is a 10- pin Molex c onnector , the s econd is a 16-pin golden finger, and the thir d is a 16-pin header.[...]

  • Page 8

    Deluo Electronics http://www.deluo.com 8 3.3 Mechanical Dimensions and Interface Connector Unit: mil 1780 734 100 4 0 100 1225 985 78.74 50 150 RF 28 197 43 459 239 T op Vie w 420 324 8 4 8 4 1 8 62.992 31.496 364 261 Bottom Vi ew 290 120 RF Shield 45 200 Lateral V iew F i g u r e 1[...]

  • Page 9

    Deluo Electronics http://www.deluo.com 9 3.4 Interface Connector Pin Out 3.4.1 Mol ex Connect or JP3 1 JP3 EverMore BBP1204 1 10-pin Molex connector pin-1 Figure 2 Pin Function Input/Output Level Pin Function Input/Output Level 1 TX D0 Output L VTT L 2 RXD0 Input L VTT L 3 PW R_IN Input 3.3V 4 GND Ground 0V 5 LED0 In/Out L VTT L 6 1PPS Output L VTT[...]

  • Page 10

    Deluo Electronics http://www.deluo.com 10 3.4.2 Pin Header Connect or JP2 JP2 16-Pin Heade r 1 6 - P i n G o l d e n F i n g e r R F SRA M F l a s h Ante nna Connector P i n 1 P i n 1 Pin header parallel golden finger Figure 3 Pin Function Input/Output Level Pin Function Input/Output Level 1 PIO1 In/Out L VTT L 2 PIO10 In/O ut L VT TL 3 PIO1 1 In/O[...]

  • Page 11

    Deluo Electronics http://www.deluo.com 11 3.5 One-Pulse-Per-Second Output The one-pulse-per -second output is provided for applications requiring precise timing measurements. The output pulse is 1use c in duration. The rising ed ge of the output pulse is accurate to +/-1usec with respect to the start of each GPS second. The accurac y of the one-pul[...]

  • Page 12

    Deluo Electronics http://www.deluo.com 12 4 SOFTW A RE INTERF A CE This section describes the details of the s erial por t co mm ands through which th e T IST AR25 is controlled and m onitored. T he serial port comm ands allo w users to s et the rec eiver param eters, conf igure out put mes sage t ype, and ret rieve s tatus inf ormation. The baud r[...]

  • Page 13

    Deluo Electronics http://www.deluo.com 13 4.1.2 GG A – Global Posit ioning System Fix Data Purpose Output tim e, position and position-f ix related data. Form at $GPGGA ,hhmmss.sss,ddmm. mmmm,a ,d dd mm.mmmm, a ,x ,x x, xx. x, xxxxx.x,M ,xx.x,M, xxx,xxxx *CS Example $GPGGA,083604.883,2446.5254,N,12100.1399,E,1,09,01.0,00155.7,M,16.3,M,,*6E Output[...]

  • Page 14

    Deluo Electronics http://www.deluo.com 14 4.1.3 GLL – G eographic Positi on – Lat i tude / Longit ude Purpose Output latitude and longitude of c urrent position, tim e, and status. Format $G P GL L ,d dmm.mmmm, a, dd d mm.mmmm, a ,h hmmss . sss,x*CS Example $GPGLL,2446.5311,N,12100.1377,E,110519.259,A*35 Output Rate Program m able using EverMor[...]

  • Page 15

    Deluo Electronics http://www.deluo.com 15 4.1.4 GS A – GNS S DOP and A ctive Satellites Purpose Output operating m ode, satellites us ed for navigation, and DOP values . Format $GPGS A,x,x, xx,xx,xx,xx,xx, xx,xx,xx,xx,xx, xx,xx,xx.x,xx. x,xx.x*C S Example $GPGSA,A,3,27,31,08,20,13,28,03,01,02,11,22,,01.3,00.8,01.0*0C Output Rate Program m able us[...]

  • Page 16

    Deluo Electronics http://www.deluo.com 16 4.1.5 GS V – GNS S Sa tellites in V iew Purpose Output num ber of SVs in view , PRN num bers, ele vation, a zimuth and SN R values . Four satellit es max imum per transmis sion, addit ional sate llite data s ent in the s econd or the third sentence. Format $GPGS V ,x,x,xx, xx,xx,xxx,xx … xx, xx,xxx,xx*C[...]

  • Page 17

    Deluo Electronics http://www.deluo.com 17 4.1.6 RMC – Recommended M i nimum Specifi c G NSS Data Purpose Output tim e, date, position, cours e and speed data. Format $GPRM C,hh mm ss.sss,x,dd mm . mmmm,a ,d dd mm. mmmm,a , xxx.x,xxx.x, ddmmyy ,xxx.x,a*CS Example $GPRMC,083604.883,A,2446.5254,N,12100.1399,E,000.0,000.0,300502,003.3,W *76 Output Ra[...]

  • Page 18

    Deluo Electronics http://www.deluo.com 18 4.1.7 VTG – Course Over Ground and G r ound Speed Purpose Outputs actual tr ack m ade good and speed r elative to the ground. Format $GPV TG,xxx.x,T ,xxx.x,M ,xxx.x,N, xxxx.x,K* CS Example $GPVTG ,000.0,T ,003.3,M,000.0,N,0000.0,K*7E Output Rate Program m able using EverMore Binar y Message 0x8E and 0x 8F[...]

  • Page 19

    Deluo Electronics http://www.deluo.com 19 4.2 EVERMORE B INA R Y MESSA GE SPECIFICA TION The Ev erMore bi nary m essage protoc ol cons ists of 3 parts: m ess age header , mess age bod y , and mes sage footer . Message Header Message Body M essage Footer Start Sequence Length of Message Body Message C hecksum End S equence 0x10 0x02 1 or 2 bytes Up [...]

  • Page 20

    Deluo Electronics http://www.deluo.com 20 Message Footer: The Mess age Footer cons ists of 3 or 4 by tes: Byte #1 - chec ksum of the Mes sage B ody (it is calc ulated b y summ ing all bytes in the Message Body and taking the sum m odulo 256) Byte #2 - when B yte #1 equa ls DLE (0x1 0), DLE (0 x10) is s ent out as th e 2nd b yte of the mes sage foot[...]

  • Page 21

    Deluo Electronics http://www.deluo.com 21 4.2.1 Binary Input Messages 4.2.1.1 EverM ore Binary Input Message 0x80: Initialization Purpose Used to : 1. Set the initial time and position of the GPS rec eiver . 2. Select datum other than the default W GS-84. 3. Select the ty pe of NMEA m ess ages to output. 4. Enable or disable EverMore binary mes sag[...]

  • Page 22

    Deluo Electronics http://www.deluo.com 22 4.2.1.2 EverM ore Binary Input Message 0x81: Data Logging See section 4.3 4.2.1.3 EverM ore Binary Input Message 0x86: Set Elevation M ask Purpose Set the elevation mas k f or position com putation. Satellites with elevation angle less than the elevation ma sk angle will not be used f or navigation solution[...]

  • Page 23

    Deluo Electronics http://www.deluo.com 23 4.2.1.5 EverM ore Binary Input Message 0x8F: Set Operating Mode Purpose Sets the navigation update rate and rec eiver-operating m ode. The r eceiver-operating m ode can be set to one of the following: 1. Normal full power m ode without 1PPS output synchronized. 2. Pow er saving m ode without 1PPS out synchr[...]

  • Page 24

    Deluo Electronics http://www.deluo.com 24 4.2.1.6 EverM ore Binary Input Message 0x94: Differential GPS Control Purpose This com mand allows us ers to contr ol the receiver’s diff erential GPS capability. Format Byte # Co ntents Range Size Scale Un it 1 Mess age ID = 0x94 Unsigned byte 2 Diff erential GPS Control 0 = disable 1 = enable SBAS 0 ~ 1[...]

  • Page 25

    Deluo Electronics http://www.deluo.com 25 4.2.2 Binary Output M essages 4.2.2.1 EverM ore Binary Outpu t M essage 0x02: Navigat ion Data Purpose Output: 1 GPS time. 2 Receiver position and velocity in W GS-84 ECEF c oordinate. 3 Number of vis ible satellites. 4 Number of s atellites used in position- fix. 5 Firmware versio n. Format Byte # Contents[...]

  • Page 26

    Deluo Electronics http://www.deluo.com 26 4.2.2.2 EverM ore Binary Outpu t M essage 0x04: DOP Data Purpose Output: 1 GPS time. 2 GDOP , PDOP , HDOP , VDO P , and TDOP . 3 Receiver navigation mode. Format Byte # Cont ents Range Size Scale Unit 1 Mess age ID = 0x04 Unsigned byte 2 ~ 3 GPS week 0 ~ 65535 Unsigned 16bit integer week 4 ~ 7 GPS tow 0 ~ 6[...]

  • Page 27

    Deluo Electronics http://www.deluo.com 27 4.2.2.3 EverM ore Binary Outpu t M essage 0x06: Channel Stat us Purpose Output: 1 GPS time. 2 Number of s atellites in view . 3 Satellite ID, elevation angle, az imuth angle, C/N estim ate, and status of the cor related channels. T his set of data is sent f or each in-view satellites. Format Byte # Co ntent[...]

  • Page 28

    Deluo Electronics http://www.deluo.com 28 4.2.2.4 EverM ore Binary Outpu t M essage 0x08: M easurement Data Purpose Output: 1 GPS time. 2 Clock off set. 3 Numbers of satellites in view . 4 Satellite ID, elevation angle, channel status, pseudo-range, delta- range, and satellite Doppler frequenc y . This set of data is s ent for eac h in-view satelli[...]

  • Page 29

    Deluo Electronics http://www.deluo.com 29 4.3 Data Logging In applic ations wh ere the GPS rece iver report ed positi on, veloc ity , and t ime needs to b e logged, the TIST AR25 suppor ts logg ing capa bilit y directl y by stori ng the da ta in the on-boar d mem ory . T he logged data m ay be retrieved later . The logged inf orm ation consists of:[...]

  • Page 30

    Deluo Electronics http://www.deluo.com 30 4.3.1.2 LogData Dump This com mand c onfigures the r eceiver to output all the logged data in NMEA-0183 f ormat or binary format. Data logging is disabled upon reception of the com mand. Byte # Content s Range Size Scale 1 Mess age ID = 0x81 Unsigned byte 2 Com m and LogDump = 0x12 Uns igned by te 3 Baud Ra[...]

  • Page 31

    Deluo Electronics http://www.deluo.com 31 4.3.2 Data Loggi ng O utput Messages 4.3.2. 1 LogData W hen the LogData Dump comm and is sent t o the r eceiver to r etrie ve the lo gged dat a in binar y form at, each logg ed r ecord is send ou t acc ording to t he form at liste d belo w with header and footer des cribed in s ection 4. 2 added. T he logge[...]

  • Page 32

    Deluo Electronics http://www.deluo.com 32 4.3.3 Data Loggi ng Programmi ng Descri pt i on 4.3.3.1 Configuring for Data Logging 1. Send LogConfig Set com mand to the r eceiver to enable data logging. 2. The receiver will star t logging data and return the LogConfig Info m essage three time s. The logged r eceiver position- velocity -tim e data is st[...]

  • Page 33

    Deluo Electronics http://www.deluo.com 33 A PPENDIX A SUPPORTED DA TUM LIST DA TUM DESCRIPTION T A BLE Datumn ID Datumn dX dY dZ Ellipsoid Region of Use 0 WGS-84 0 0 0 W GS 84 Global 1 WGS-84 0 0 0 W GS84 Global 2 Adindan -1 18 -14 218 Clarke 1880 Burkina Faso 3 Adindan -134 -2 210 Clarke 1880 C ameroon 4 Adindan -165 -1 1 206 Clarke 1880 Ethiopia [...]

  • Page 34

    Deluo Electronics http://www.deluo.com 34 40 Camp Area Astro -104 -129 239 International 1924 Antarctica (McM urdo Camp Area) 41 Campo Inchauspe -148 136 90 International 1924 Argentina 42 Canton Astro 1966 298 -304 -375 International 1924 Phoenix Islands 43 Cape -136 -108 -292 Clarke 1880 South Africa 44 Cape Canav eral -2 151 181 Clarke 1866 Baha[...]

  • Page 35

    Deluo Electronics http://www.deluo.com 35 72 Gan 1970 -133 -321 50 International 1924 Republic of Maldives 73 Geodetic Datum 1949 84 -22 209 International 1924 New Zealand 74 Graciosa Base SW 1948 -104 167 -38 International 1924 Azores (Faial; Gr aciosa; Pico; Sao Jorge; T erceira) 75 Guam 1963 -100 -248 259 Clarke 1866 Guam 76 Gunung Segara -403 6[...]

  • Page 36

    Deluo Electronics http://www.deluo.com 36 120 North American 1927 -4 154 178 C larke 1866 Bahamas (Ex cept San Salvador Id) 121 North American 1927 1 140 165 Clarke 1866 Bahamas (San Salvador Island) 122 North American 1927 -7 162 188 C larke 1866 Canada (Alberta; British Columbia) 123 North American 1927 -9 157 184 C larke 1866 Canada (M anitoba; [...]

  • Page 37

    Deluo Electronics http://www.deluo.com 37 150 Old Hawaiian 58 -283 -182 Clarke 1866 Oahu 151 Oman -346 -1 224 Clarke 1880 Oman 152 Ordnance Survey Gr eat Britain 1936 371 -1 12 434 Airy 1830 England 153 Ordnance Survey Gr eat Britain 1936 371 -1 1 1 434 Airy 1830 England; Isle of Man; Wale s 154 Ordnance Survey Gr eat Britain 1936 375 -1 1 1 431 Ai[...]

  • Page 38

    Deluo Electronics http://www.deluo.com 38 187 Sao Braz -203 141 53 International 1924 Azores (Sao M iguel; Santa Maria Ids) 188 Sapper Hill 1943 -355 21 72 International 1924 East Falkland Island 189 Schwarzeck 616 97 -251 Bessel 1841 (Namibia) Namibia 190 Selvagem Grande 1938 -289 -124 60 International 1924 Salvage Islands 191 Sierra Leone 1960 -8[...]

  • Page 39

    Deluo Electronics http://www.deluo.com 39 ELLIPSOID DESCRIPT ION T ABLE Ellipsoid Semi-major axis (a) Inverse fla tte ning (1/f) Airy 1830 6377563.396 299.3249646 Modified Airy 6377340.189 299.3249646 Australian National 6378160 298.25 Bessel 1841 (Namibia) 6377483.865 299.1528128 Bessel 1841 6377397.155 299.1528128 Clarke 1866 6378206.4 294.978698[...]

  • Page 40

    Deluo Electronics http://www.deluo.com 40 A PPENDIX B DEF A UL T V A LUES The produc t has the following fac tory preset default values: Datum: 001 (W GS-84) NMEA Enable Switch : GGA ON G L L O F F G S A O N G S V O N R M C O N VTG OFF Check sum O N EMT Private Mes sage: OFF Baud Rate : 4800 Baud Elevation Mas k: 5 degr ees DOP Mask : DOP Select: A[...]