EverMore EB-N700 Bedienungsanleitung
EB-N700 User’s Manual
EverMore Technology Inc.
2F, No.7, R&D Road 1, Science-Based Industrial Park, Hsinchu, Taiwan, 300, R.O.C. http://www.emt.com.tw
1
EB-N700
GPS Engine Board Receiver
User’s Manual
EverMore Technology Inc.
EB-N700 User’s Manual
EverMore Technology Inc.
2F, No.7, R&D Road 1, Science-Based Industrial Park, Hsinchu, Taiwan, 300, R.O.C. http://www.emt.com.tw
2
Manual Revision History
Revision Date Update Summary
Issue 1.0 June 2005 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. reserves the right to
change specification at any time without notice.
EB-N700 User’s Manual
EverMore Technology Inc.
2F, No.7, R&D Road 1, Science-Based Industrial Park, Hsinchu, Taiwan, 300, R.O.C. http://www.emt.com.tw
3
Contents
1. INTRODUCTION............................................................................................... 5
1.1 Overview .............................................................................................................................5
1.2 Features...............................................................................................................................6
1.3 Applications.........................................................................................................................6
1.4 Start-up Modes ...................................................................................................................7
2. TECHNICAL SPECIFICATIONS................................................................... 8
2.1 Electrical Characteristics ..................................................................................................8
2.2 Environmental Characteristics.........................................................................................9
2.3 Physical Characteristics.....................................................................................................9
2.4 Other Electrical Specifications........................................................................................10
3. HARDWARE INTERFACE ............................................................................11
3.1 EB-N700 Real Picture...................................................................................................... 11
3.2 EB-N700 Mechanical Dimensions...................................................................................12
3.2.1 PCB Board Dimensions ..................................................................................................12
3.2.1 Metal Board Dimensions................................................................................................. 13
3.3 EB-N700 Serial Interface.................................................................................................14
3.4 EB-N700 Debug Interface................................................................................................15
3.5 EB-N700 Reference Design..............................................................................................16
3.5.1 Lithium Battery..............................................................................................................16
3.5.2 Nimh Battery..................................................................................................................17
EB-N700 User’s Manual
EverMore Technology Inc.
2F, No.7, R&D Road 1, Science-Based Industrial Park, Hsinchu, Taiwan, 300, R.O.C. http://www.emt.com.tw
4
4. OPERATION AND TEST .............................................................................. 18
5. SOFTWARE SPECIFICATION.................................................................... 19
5.1 EB-N700 NMEA Protocol................................................................................................19
5.2 General NMEA Format...................................................................................................19
5.3 $GPGGA...........................................................................................................................20
5.4 $GPGLL............................................................................................................................21
5.5 $GPGSA............................................................................................................................21
5.6 $GPGSV............................................................................................................................22
5.7 $GPRMC...........................................................................................................................23
5.8 $GPVTG............................................................................................................................23
5.9 $GPZDA............................................................................................................................24
6. LIMITED WARRANTY................................................................................... 24
7. SERIES PRODUCTS INFORMATION....................................................... 25
8. APPENDIX........................................................................................................ 25
EB-N700 User’s Manual
EverMore Technology Inc.
2F, No.7, R&D Road 1, Science-Based Industrial Park, Hsinchu, Taiwan, 300, R.O.C. http://www.emt.com.tw
5
1. Introduction
1.1 Overview
EverMore series GPS module EB-N700 is a high sensitivity ultra low power consumption cost
efficient, compact size; plug & play GPS module board designed for a broad spectrum of OEM system
applications. This product is based on the proven technology found in 16 channel GPS receivers and
NEMERIX chipset solution. The GPS module receiver will track up to 16 satellites at a time while
providing fast time-to-first-fix and 1Hz navigation updates. It is far reaching capability meets the
sensitivity & accuracy requirements of car navigation as well as other location-based applications,
such as AVL system. Handheld navigator, PDA, pocket PC, or any battery operated navigation system.
The EB-N700 design utilizes the latest surface mount technology and high level circuit
integration to achieve superior performance while minimizing dimension and power consumption. This
hardware capability combined with software intelligence makes the board easy to be integrated and
used in all kinds of navigation applications or products. The module communicates with application
system via serial LVTTL level signal with NMEA0183 protocol.
EB-N700 User’s Manual
EverMore Technology Inc.
2F, No.7, R&D Road 1, Science-Based Industrial Park, Hsinchu, Taiwan, 300, R.O.C. http://www.emt.com.tw
6
1.2 Features
The EB-N700 GPS engine board offers following features:
Built-in high performance NEMERIX chipset.
Average Cold Start in 50 seconds.
Ultra low power consumption.
16 channels “All-in-View” tracking.
On chip 4Mb flash memory.
LVTTL level serial port for GPS receiver command message interface.
Support standard NMEA-0183 V3.0
Option accurate 1PPS output signal aligned with GPS timing
Multi-path mitigation hardware
Optimum clock drift adjustment
External antenna open/short detector
Support dual antenna with built-in auto-detect RF switch
Built-in patch antenna
On-board rechargeable battery sustained real-time clock and memory for fast satellite
acquisition during power-up
Compact board Size EB-N700 36mm x 36mm x 7.8mm (1.42”x1.42”x0.31”)
for easy integration into hand-held device.
1.3 Applications
EB-N700 engine board receiver is a high performance, ultra low power consumption, plug &play
product. These applications are as follow.
Car navigation system for portable device and car device
Wrist watch
Solar operated device
Marine Navigation
Fleet management
AVL and location-based services
Radar detector with GPS function
Hand-held device for personal positioning and navigation
Ideal for PDA, pocket PC and other computing devices at GPS application
Asset tracking
Timing reference
EB-N700 User’s Manual
EverMore Technology Inc.
2F, No.7, R&D Road 1, Science-Based Industrial Park, Hsinchu, Taiwan, 300, R.O.C. http://www.emt.com.tw
7
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.
A
nother 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.
Execute cold start of the test tool when first use. By this way can speed up
position fix time.
Warm Start
In this scenario, the receiver was off less than one week but more than 2-hour
time.
The receiver knows its last position, time and almanac because it has a
backup battery to keep current almanac, position and time stored in SRAM.
In the warm start mode, the receiver can quickly acquire satellites and get a
position fix faster than it does in the cold start mode.
Hot Start
In this scenario, the receiver was off less than 2-hour time. With the back up
battery connected and the current almanac, position, time and ephemeris
stored in SRAM, the receiver applies its last ephemeris data to calculate and
get a position fix.
Reacquisition
In the reacquisition mode, the receiver takes time to lock on satellites if
buildings or obstacles are blocking the signals for a short while.
This is very common in urban areas, but please be noted that reacquisition
time has nothing to do with the time-to-first-fix (TTFF).
EB-N700 User’s Manual
EverMore Technology Inc.
2F, No.7, R&D Road 1, Science-Based Industrial Park, Hsinchu, Taiwan, 300, R.O.C. http://www.emt.com.tw
8
2. Technical Specifications
2.1 Electrical Characteristics
2.1.1 General
Frequency L1, 1575.42 MHz
C/A code 1.023 MHz chip rate
Channels 16
2.1.2 Sensitivity
Tracking -152dBm type
Acquisition -139dBm type
2.1.3 Accuracy
Position 3-25 meters CEP (90%) horizontal, SA off.
Velocity 0.1 meters/second
Time ±100 ns synchronized to GPS time
2.1.4 Datum
Default WGS-84
Other Support different datum by request
2.1.5 Acquisition Rate (Open sky, stationary requirements)
Hot start 7 sec, average
Warm start 38 sec, average
Cold start 50 sec, average
2.1.6 Dynamic Conditions
Altitude 18,000 meters max
Horizontal Velocity 300 kilometers/hour max
Vertical Velocity 36 kilometers/hour max
Acceleration 2g, max
Jerk 4 meters/second3, max
EB-N700 User’s Manual
EverMore Technology Inc.
2F, No.7, R&D Road 1, Science-Based Industrial Park, Hsinchu, Taiwan, 300, R.O.C. http://www.emt.com.tw
9
2.1.7 Power
Main power input 3.3V ± 0.1Vp-p DC input.
Supply Current Typical 30 mA
2.1.8 Serial Port
Electrical interface one full duplex serial communication, LVTTL interface
Protocol message NMEA-0183, version 3.0
Default NMEA GGA, GSA, GSV, RMC and VTG. 9600 baud rate,
8 bits data, 1 start, 1 stop, no parity.
(Option baud rate: 4800,19200, 38400)
2.1.9 Time-1PPS Pulse(optional)
Level LVTTL
Pulse duration 100ms
Time reference at the pulse positive edge
Measurements Aligned to GPS second, ±1 microsecond
2.1.10 Recommended External Antenna Specification
Gain 20dB (including cable loss)
Noise figure 1.5dB
Current 3~30mA
Operate Voltage 2.5 ~ 2.8V
2.2 Environmental Characteristics
Operating temperature range -40 ℃to +80 ℃
Storage temperature range -50 ℃to +90 ℃
2.3 Physical Characteristics
Dimension: 36mm x 36mm x 7.8mm (1.42”x1.42”x0.31”)
Weight: 15.1g(0.53oz)
Interface connector: 1.27 mm pitch 10 pin / 6 pin board to board
EB-N700 User’s Manual
EverMore Technology Inc.
2F, No.7, R&D Road 1, Science-Based Industrial Park, Hsinchu, Taiwan, 300, R.O.C. http://www.emt.com.tw
10
2.4 Other Electrical Specifications
Table 1 Absolute Maximum Ratings
Parameter Symbol Min. Max. Units
Power Supply Voltage VDD -0.3 3.6 V
Input Pin Voltage VIN -0.3 3.3 V
Output Pin Voltage VOUT -0.3 3 V
Reset Pin Voltage Vreset -0.3 2.0 V
Storage Temperature TSTG -50 90 °C
Back-up Voltage BAT 2.2 V
Table 2 Operating Conditions
Parameter Symbol Min. Typical Max. Units
Power Supply Voltage VDD 3 3.3 3.6 V
Input Pin Voltage VIN 2.7 3 3.3 V
Operating Temperature TOPR -40 80 °C
Operating Current ICC 30 mA
Table 3 Backup Battery Conditions
Parameter Symbol Min. Typical Max. Units
RTC(Battery) Power BAT 1.2 1.8 2 V
Supply Current 10 µA
Table 4 DC Characteristics
Parameter Symbol Min. Max. Units
Input High Level Vih 2.5 3.5 V
Input Low Level Vil 0 0.8 V
Output High Level Voh 2.4 3.4 V
Output Low Level Vol 0 0.4 V
Input Leakage Current li 2 2 µA
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