EB-A801 User’s Manual V1.0 EB-A801 GPS Engine Board Receiver User’s Manual EverMore Technology Inc. EverMore Technology Inc. 2F, No.7, R&D Road 1, Science-Based Industrial Park, Hsinchu, Taiwan, 300, R.O.C. 1 http://www.emt.com.
EB-A801 User’s Manual V1.0 Manual Revision History Revision Issue 1.0 Date September 2006 Update Summary Initial release © EverMore Technology Inc. All rights reserved. Not to be reproduced in whole or part for any purpose without written permission of EverMore Technology Inc. Information provided by EverMore Technology Inc. is believed to be accurate and reliable. However, no responsibility is assumed by EverMore Technology Inc. for its use. EverMore Technology Inc.
EB-A801 User’s Manual V1.0 Contents 1. INTRODUCTION .......................................................................................................... 4 1.1 OVERVIEW ......................................................................................................................... 4 1.2 FEATURES .......................................................................................................................... 4 1.3 APPLICATIONS .........................................................
EB-A801 User’s Manual V1.0 1. Introduction 1.1 Overview EverMore EB-A801 is a high sensitivity, low power, SMD type GPS Module, and this product is based on Atmel chipset in 16 channel GPS receiver’s solutions. The GPS module receiver will track up to 16 satellites at a time while providing fast time-to-first-fix and 1Hz navigation updates.
EB-A801 User’s Manual V1.0 1.4 Start-up Modes Definitions DESCRIPTION Cold Start The Cold Start takes the longest startup time among EMT GPS receivers. In this scenario, the receiver has no acknowledgment on the last position, time, and satellite constellation. The receiver is initiated to search blindly for satellite signals in the cold start mode. Another situation is that when no backup battery is connected, the GPS receiver will be in the cold start mode and there is no data stored in SRAM.
EB-A801 User’s Manual V1.0 2. Technical Specifications Items General Sensitivity Update Rate Accuracy Description L1 1575.42MHz, C/A code, 16-channel all in view tracking -158 dBm (typical) 1 Hz Position: <15m(95%) without S/A Velocity: 0.1 m/sec without S/A Time: ± 100ns synchronized to GPS time Acquisition Cold start: Warm start: Hot start : Dynamics NMEA Message Altitude: 18,000m/ Max Velocity: 515 m/s Acceleration: 4g Max 0.1 second WAAS /EGNOS WGS-84 NMEA-0183 V2.
EB-A801 User’s Manual V1.0 3. Hardware Interface 3.1 EB-A801 Real Picture EB-A801 Engine Board Top View EB-A801 Engine Board Bottom View EverMore Technology Inc. 2F, No.7, R&D Road 1, Science-Based Industrial Park, Hsinchu, Taiwan, 300, R.O.C. 7 http://www.emt.com.
EB-A801 User’s Manual V1.0 3.2 EB-A801 Mechanical Dimensions Unit: mm PCB TOP VIEW EverMore Technology Inc. 2F, No.7, R&D Road 1, Science-Based Industrial Park, Hsinchu, Taiwan, 300, R.O.C. 8 http://www.emt.com.
EB-A801 User’s Manual V1.0 3.3 EB-A801 Pin Assignment EverMore Technology Inc. 2F, No.7, R&D Road 1, Science-Based Industrial Park, Hsinchu, Taiwan, 300, R.O.C. 9 http://www.emt.com.
EB-A801 User’s Manual V1.0 3.
EB-A801 User’s Manual V1.0 4. Operation and Test The customers can change the data protocol and communication data baud rate for your application using these tools. The software and manual are available for download from website. Below list EB-A801 software tools For example double click 800_SeriesGPSTest.exe to test GM-R800 EverMore Technology Inc. 2F, No.7, R&D Road 1, Science-Based Industrial Park, Hsinchu, Taiwan, 300, R.O.C. 11 http://www.emt.com.
EB-A801 User’s Manual V1.0 5. Software Specification 5.1 EB-A801 NMEA-0183 Output Message GGA (Default) GLL (Default) GSA (Default) GSV (Default) RMC (Default) VTG (Default) Description Global positioning system fixed data Geographic position - latitude/longitude GNSS DOP and active satellites GNSS satellites in view Recommended minimum specific GNSS data Course over ground and ground speed Table 1 NMEA-0183 Output Messages 5.
EB-A801 User’s Manual V1.0 5.3 $GPGGA GGA--- Global Positioning System Fixed Data Table 2 contains the values for the following example: $GPGGA,161229.487,3723.2475,N,12158.3416,W,1,07,1.0,9.0,M, , , ,0000*18 Table 2 GGA Data Format Name Message ID UTC Position Latitude N/S Indicator Longitude E/W Indicator Position Fix Indicator Satellites Used HDOP MSL Altitude Units Geoid Separation Units Age of Diff. Corr. Diff. Ref. Station ID Checksum Example $GPGGA 161229.487 3723.2475 N 12158.
EB-A801 User’s Manual V1.0 5.4 $GPGLL GLL--- Geographic Position – Latitude/Longitude Table 4 contains the values for the following example: $GPGLL,3723.2475,N,12158.3416,W,161229.487,A*2C Table 4 GLL Data Format Name Message ID Latitude N/S Indicator Longitude E/W Indicator UTC Position Status Checksum Example $GPGLL 3723.2475 N 12158.3416 W 161229.487 A *2C Units Description GLL protocol header ddmm.mmmm N=north or S=south dddmm.mmmm E=east or W=west hhmmss.
EB-A801 User’s Manual V1.0 5.5 $GPGSA GSA---GNSS DOP and Active Satellites Table 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 5 GSA Data Format Name Message ID Mode 1 Mode 2 Satellite Used in solution Satellite Used in solution Satellite Used PDOP HDOP VDOP Checksum Example $GPGSA A 3 07 02 1.8 1.0 1.
EB-A801 User’s Manual V1.0 5.
EB-A801 User’s Manual V1.0 5.7 $GPRMC RMC---Recommended Minimum Specific GNSS Data Table 9 contains the values for the following example: $GPRMC,161229.487,A,3723.2475,N,12158.3416,W,0.13,309.62,120598, ,*10 Table 9 RMC Data Format Name Message ID UTC Position Status Latitude N/S Indicator Longitude E/W Indicator Speed Over Ground Course Over Ground Date Magnetic Variation Checksum Example $GPRMC 161229.487 A 3723.2475 N 12158.3416 W 0.13 Units knots 309.
EB-A801 User’s Manual V1.0 5.8 $GPVTG VTG---Course Over Ground and Ground Speed Table 10 contains the values for the following example: $GPVTG,309.62,T, ,M,0.13,N,0.2,K*6E Table 10 VTG Data Format Name Message ID Course Reference Course Reference Speed Units Speed Units Checksum Example $GPVTG 309.62 T Units degrees degrees M 0.13 N 0.
