San Jose Navigation FV-M7 User Manual

MTK-3301 GPS Receiver Series

Model: FV-M7 GPS Receiver

USER’S GUIDE

The objective of The FV-M7 User’s Guide is to help users to understand the

properties of FV-M7 thoroughly and, therefore, obtain the maximum performance

from the module easily. This document describes and provides the useful

information the FV-M7 module, which includes the functions of pins on the module,

configuration setting and utility. It will help users to understand the capability of the

module and, therefore, successfully integrate the FV-M7 into users’ GPS systems.

Each chapter is one of the pieces for the module and carries its own purpose.

Title FV-M7

Subtitle GPS Receiver Module

Doc Type Data Sheet

Doc Id GPS.FV-M7-070516

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Contents

Chapter 1 Introduction......................................................... 3

1.1 Specifications ............................................................................................4

Chapter 2 Pin Assignment .................................................... 5

2.1 Pin Assignment.........................................................................................5

2.2 Pin description ..........................................................................................6

Chapter 3 Operating GPS Locator Utility............................... 7

3.1 Connecting Com Port .............................................................................8

3.2 Functional Windows (Interval Setting) ...........................................9

3.3 Functional Windows (Local Time Zone Setting)........................10

3.4 Functional Windows (SBAS Setting).............................................. 11

3.5 Functional Windows (Power Mode Setting).................................12

3.6 Functional Windows (Restart Setting) ..........................................13

3.7 Functional Windows (View Default) ...............................................14

3.8 Using Mini GPS to Open Com Port..................................................15

3.9 Using Mini GPS to Setup.....................................................................15

3.9 Using Mini GPS to Setup.....................................................................16

3.10 Using Mini GPS to Save Settings into Flash .............................17

Chapter 4 Available NMEA Messages .................................. 18

4.1 NMEA Protocol ........................................................................................18

Chapter 5 Limited Warranty ............................................... 26

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Chapter 1 Introduction

The main goal of FV-M7 is to be used as a part of integrated system, which can be

a simple PVT (Position-Velocity-Time) system, for instance, G-mouse, PND

(Personal Navigation Device), or complex wireless systems, such as a system with

GSM function, a system with Bluetooth function, and a system with GPRS function.

The module (FV-M7) can be the best candidate for users’ systems as the users’

systems need the careful consideration on the performance, sensitivity, power

consumption, and/or size of the module. In the specification of FV-M7 at the next

page, it is noticeable that in addition to excellent start-up times and position

accuracy, the updated rate can be up to 5 Hz and the sensitivity of -158dbm.

If you have any technical questions, please contact us by either e-mail (prefer),

telephone or fax.

e-mail: [e-mail]

Tel: [phone]

Fax: [phone]

When you send a request to us, please prepare the following information that may

help us to resolve your problem as soon as possible:

1. Serial No. of Product;

2. Type of antenna that is connected to the module;

3. Operating System (OS) of your host PC;

4. Simple description of your integrated system (may also included peripheral

connections and devices);

5. Describing the way you operate your system;

6. Description of failure by text, figure, or both;

7. Contact information, such as name, address, phone number, and e-mail

address.

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RMC, GGA, GSV*5,

1.1 Specifications

PHYSICAL CONSTRUCTION

Dimension

Weight

RF Connector

Connector

L40.5mm*W35mm*H13.7mm

11 grams

Standard: MCX Jack

Optional: SMA, SMB Jack

12pin connector with 1.27mm

pitch

PERFORMANCE

GPS Chipset MTK-3301

Sensitivity -158dbm

Receiving

frequency

SBAS

DGPS RTCM Protocol

Receiver

architecture

Start-up time

Position accuracy

1575.42MHZ; C/A code

1 channel (Support WAAS, EGNOS,

MSAS)

32 parallel channels

Hot start

Warm start

Cold start

Without aid 3.3 m CEP

DGPS (RTCM) 2.6 m

1 sec. typical

35 sec. typical

41sec. typical

Construction

ENVIRONMENTAL CONDITIONS

Temperature

Protocol

Signal level Default: RS232

INTERFACE CAPABILITY

Standard Output

Sentences

Full EMI Shielding Velocity accuracy 0.1 Knot RMS steady state

Operating: -30 ~ +80

Storage: -40 ~ +85 ℃

NMEA V3.01

Option: UART @ 2.8V

Default

VTG, GSA*5

Optional GLL, ZDA

℃

Update Rate

Power Supply

Power

Consumption

External Antenna

Baud Rate

1 ~ 5Hz

3.3~5V +- 5%

Acquisition 65mA

Tracking

GPS antenna with 2.8V power input

4800 bps (default) &

4800/9600/38400/57600/115200 bps

are adjustable

50mA

(first 5 minutes)

48mA

(after 5 minutes)

41mA

(after 20 minutes)

COMMUNICATION

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Chapter 2 Pin Assignment

2.1 Pin Assignment

Figure 2.1 shows the pin definitions of FV-M7. Table 2.1 describes the corresponding

definitions for pins.

Figure 2.1 FV-M7 Pin definitions

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2.2 Pin description

VIN (DC power input):

This is the main DC supply for a 3.3V ~ 5V +- 5% DC input power module board.

BATTERY (Backup battery):

This is the battery backup input that powers the SRAM and RTC when main power is removed.

Typical current draw is <10uA. Without an external backup battery, the module/engine board

will execute a cold star after every turn on. To achieve the faster start-up offered by a hot or

warm start, a battery backup must be connected. The battery voltage should be between

2.0v and 5.0v.

TIMEMARK (1PPS):

User can use this pin for special function.

For example, on/off LED

Output TTL level, 0V ~ 2.8V, 1PPS timemark output

TXA:

This is the main transmits channel for outputting navigation and measurement data to user’s

navigation software or user written software.

Output RS-232 level, 0V ~ 6V or Output TTL level, 0V ~ 2.8V

RXA:

This is the main receive channel for receiving software commands to the engine board from

MiniGPS or GPS Locator Utility (SV-3301) software or from user written software.

Input RS-232 level, 0V ~ 6V or Input TTL level, 0V ~ 2.8V

GND:

GND provides the ground for the engine board. Connect all grounds.

RXB:

This is mainly used to receive RTCM signals for differential purpose. Please note that a MTK

command must be sent to open this port first so that the RXB will receive the RTMC properly.

Input RS-232 level, 0V ~ 6V or Input TTL level, 0V ~ 2.8V

PBRES:

This pin provides active-low reset input to the GPS receiver module. It makes the GPS

receiver module to reset and search the GPS again.

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Chapter 3 Operating GPS Locator Utility

GPS Locator Utility V2.61 is the latest utility for configuring the GPS settings of

Sanav GPS receivers. You can find the utility in the CD (FV-M7\Utility\Setup) and the

password is in License.txt. Double click on the Setup.exe and follow the installation

procedures.

GPS Locator Utility (Version 2.61), an application program for FV-M7, enables

you to do the configurations on the unit. Below are instructions of how to work with

this software, with assumption that you have successfully installed GPS Locator

Utility.

Mini GPS is an utility from MTK. If the users would like to read 32-channel, change

update rate (1 ~5Hz) and baud rate, please use Mini GPS.

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3.1 Connecting Com Port

After selecting the Com Port, bard rate and Command Setting, click on “Connect”

and you will be able to do the configurations.

Select baud rate (default of 4800)

Select SV3310, which is the same as MTK-3301

Select the ComPort

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