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GPS-20 Operating Manual                               

 

 

Rikaline

 
Rikaline

 Marketing Corp.

 

 

 

           

5F-1, 125, Roosevelt Road, Sec. 5, Taipei, Taiwan 116 

Tel: ++886 2 2934 5456    Fax: ++886 2 2934 4373      E-Mail: 

[email protected]

  web: 

www.rikaline.com.tw

 

 

2

 
 

TABLE OF CONTENTS 

 
 

1.  Introduction

 

………………………………………………………………………………………..

 3 

1.1  Overview 

……………………………………………………………………………………..

 3 

1.2  Features 

……………………………………………………………………………………..

 3 

1.3  Technical Specifications 

………………………………………………………………..

 3 

 

2.  Operational Characteristics

 

……………………………………………………………….…

 5 

2.1  Initialization

 

………………………………………………………………………………….

 5 

2.2  Navigation 

………………………………………………………………………………….

 5 

                                                                                                                 

3.  Hardware Interface

 

………………………………………………………………………….……

 6 

3.1  Connector 

………………………………………………………………………………….…

 6 

3.2  Pin Assignment  

…..………………………………………………………………….……

 6 

3.3  Trickle Power Description

….……………………………………………………….…

 8 

3.4  Push-to-Fix Description 

…………………………………………………………………

 9 

3.5    SRAM Data Backup Description 

……………………………………………………..

 9 

3.6  Mechanical Dimension 

………………………………………………………………….

10 

 

4.  Software Interface

…………………………………………………………………………….…

11 

4.1  NMEA Transmitted Sentences

……………………………………………………..…

11 

4.2  RTCM Received Data 

…………………………………………………………………..

14 

 

5.  Earth Datums

  ……………………………………………………………………………………….

15 

5.1  Earth Datums

………………………………………………………………………………..

15 

6.2  Setting Syntax

  …………………………………………………………………………….…

16 

 

6.  Ordering Information

  ………………………………………………………………………..…

17 

7.1  Product Options 

………………………………………………………………….…………

17 

7.2  Accessories

………………………………………………………………………….………

17 

 

8.  Warranty

  ………………………………………………………………………………………………

17 

 
 
 

Содержание GPS-20

Страница 1: ...SiRF Star II V1 0 Aug 09 2002 User s Guide Rikaline Marketing Corp 5F 1 125 RooseveltRd Sec 5 Taipei 116 Taiwan R O C Phone 886 2 2934 5456 Fax 886 2 2934 4373 E Mail info rikaline com tw Web www rik...

Страница 2: ...ions 3 2 Operational Characteristics 5 2 1 Initialization 5 2 2 Navigation 5 3 Hardware Interface 6 3 1 Connector 6 3 2 Pin Assignment 6 3 3 Trickle Power Description 8 3 4 Push to Fix Description 9 3...

Страница 3: ...provides a host of features that make it easy for integration and use 1 SiRF Star II chipset with embedded ARM7TDMI CPU available for customized applications in firmware 2 High performance receiver t...

Страница 4: ...tart 45 sec averaged 1 3 4 2 Position Aaccuracy Non Differential GPS Position 5 25 meter CEP without SA Velocity 0 1 meters second without SA Time 1 microsecond synchronized GPS time 1 3 4 3 DGPS Accu...

Страница 5: ...nificant inaccuracy exists in the initial data or the orbital data is obsolete it may take more time to achieve a navigation solution The GPS 20 Auto locate feature is capable of automatically determi...

Страница 6: ...t functions note 1 8 GPIOC SW dependent functions note 1 9 GPIOD SW dependent functions note 1 10 GND Ground 11 TXA Serial Data Output A 12 RXA Serial Data Input A 13 GND Ground 14 TXB Serial Data Out...

Страница 7: ...tor software You can directly communicate with a PC serial port TTL level should be turned to RS 232 level 3 2 6 RXA This is the main receiving channel and is used to receive software commands to the...

Страница 8: ...is achieved by powering down the board after a position is determined in such a manner that when it is turned back on it can recomputed a position fix in the shortest amount of time Standard TrickleP...

Страница 9: ...current of the GSP2e and CPU There are three events that can happen which effectively return the CPU to normal operation 3 4 3 Power on If power is removed then re applied to the board a reset signal...

Страница 10: ...al Drawing 3 6 1 Top View 3 6 2 Lateral View 3 6 3 Connector l 886 2 2934 5456 Fax 886 2 2934 4373 Model GPS9540 10 00 5 00 4 00 1 0 0 0 80 0 8 0 5 70 5 7 0 Straight MCX 5F 1 125 Roosevelt Road Sec 5...

Страница 11: ...S data GPVTG Course over ground and ground speed 4 1 1 Global Positioning System Fix Data GGA Table 5 2 contains the values for the following example GPGGA 161229 487 3723 2475 N 12158 3416 W 1 07 1 0...

Страница 12: ...age termination 4 1 3 GNSS DOP and Active Satellites GSA Table 4 5 contains the values for the following example GPGSA A 3 07 02 26 27 09 04 15 1 8 1 0 1 5 33 Table 4 5 GSA Data Format Name Example Un...

Страница 13: ...E Items 4 5 6 and 7 repeat for each satellite in view to a maximum of four 4 satellites per sentence Additional satellites in view information must be sent in subsequent sentences These fields will be...

Страница 14: ...Kilometers per hour Checksum 6E CR LF End of message termination 1 SiRF Technology Inc does not support magnetic declination All course over ground data are geodetic WGS84 directions 4 2 RTCM Receive...

Страница 15: ...ropean 1950 Eastern Regional Mean International Data16 dat 22 European 1950 Egypt International Data17 dat 23 European 1950 Finland Norway International Data18 dat 24 European 1950 Greece Internationa...

Страница 16: ...pore Modified Fischer 1960 Data51 dat 62 South Africa Clarke 1880 Data52 dat 63 Thailand 1975 Everest 1830 Data54 dat 64 Tokyo_Japan Bessel 1841 Data60 dat 65 Tokyo_Korea Bessel 1841 Data61 dat 66 Tok...

Страница 17: ...No backup battery 6 2 Accessories A 10302 Active Antenna 2 Meter MCX straight connector A 10302 A Active Antenna 2 Meter MCX 90 connector A 10305 Active Antenna 5 Meter MCX straight connector A 10305...

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