Quectel GNSS Module Series User manual

LG69T (AA)
EVB User Guide
GNSS Module Series
Rev. LG69T(AA)_EVB_User_Guide_V1.0
Date: 2020-04-23
Status: Preliminary
www.quectel.com

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Our aim is to provide customers with timely and comprehensive service. For any
assistance, please contact our company headquarters:
Quectel Wireless Solutions Co., Ltd.
Building 5, Shanghai Business Park Phase III (Area B), No.1016 Tianlin Road, Minhang District, Shanghai
200233, China
Tel: [phone]
Email: [email protected]om
Or our local office. For more information, please visit:
http://www.quectel.com/support/sales.htm
For technical support, or to report documentation errors, please visit:
http://www.quectel.com/support/technical.htm
Or email to: [e-mail]
GENERAL NOTES
QUECTEL OFFERS THE INFORMATION AS A SERVICE TO ITS CUSTOMERS. THE INFORMATION
PROVIDED IS BASED UPON CUSTOMERS’ REQUIREMENTS. QUECTEL MAKES EVERY EFFORT
TO ENSURE THE QUALITY OF THE INFORMATION IT MAKES AVAILABLE. QUECTEL DOES NOT
MAKE ANY WARRANTY AS TO THE INFORMATION CONTAINED HEREIN, AND DOES NOT ACCEPT
ANY LIABILITY FOR ANY INJURY, LOSS OR DAMAGE OF ANY KIND INCURRED BY USE OF OR
RELIANCE UPON THE INFORMATION. ALL INFORMATION SUPPLIED HEREIN IS SUBJECT TO
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THE INFORMATION CONTAINED HERE IS PROPRIETARY TECHNICAL INFORMATION OF QUECTEL
WIRELESS SOLUTIONS CO., LTD. TRANSMITTING, REPRODUCTION, DISSEMINATION AND
EDITING OF THIS DOCUMENT AS WELL AS UTILIZATION OF THE CONTENT ARE FORBIDDEN
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RIGHTS ARE RESERVED IN THE EVENT OF A PATENT GRANT OR REGISTRATION OF A UTILITY
MODEL OR DESIGN.
Copyright © Quectel Wireless Solutions Co., Ltd. 2020. All rights reserved.

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About the Document
Revision History
Version
Date
Author
Description
1.0
2020-04-23
Gobber HU
Initial

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Contents
About the Document...................................................................................................................................2
Contents.......................................................................................................................................................3
Table Index...................................................................................................................................................4
Figure Index.................................................................................................................................................5
1Introduction..........................................................................................................................................6
1.1. Safety Information.......................................................................................................................6
2General Overview.................................................................................................................................7
2.1. EVB Top View..............................................................................................................................7
3Interface Applications .........................................................................................................................9
3.1. Micro-USB to UART Interface (J201)..........................................................................................9
3.2. GNSSAntenna Interface (J401).................................................................................................9
3.3. Buttons......................................................................................................................................10
3.4. Operation Status Indication LEDs............................................................................................. 11
3.5. Test Points.................................................................................................................................12
4EVB Operation Procedures...............................................................................................................15
4.1. Communication through Micro-USB to UART Interface...........................................................15
4.2. Firmware Upgrade....................................................................................................................16
5Appendix A Reference.......................................................................................................................17

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Table Index
Table 1: Interfaces of LG69T (AA) EVB....................................................................................................... 7
Table 2: Switches and Buttons....................................................................................................................11
Table 3: Operation Status Indication LEDs.................................................................................................11
Table 4: Pin Definition of J303 Test Points................................................................................................. 12
Table 5: Pin Definition of J302 Test Points................................................................................................. 13
Table 6: Related Documents......................................................................................................................17
Table 7: Terms and Abbreviations.............................................................................................................. 17

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Figure Index
Figure 1: Top View of LG69T (AA) EVB....................................................................................................... 7
Figure 2: Micro-USB to UART Interface....................................................................................................... 9
Figure 3: GNSSAntenna Interface ............................................................................................................10
Figure 4: Switches and Buttons .................................................................................................................10
Figure 5: Operation Status Indication LEDs................................................................................................11
Figure 6: Test Points (J303) .......................................................................................................................12
Figure 7: Test Points (J302) .......................................................................................................................13
Figure 8: USB Port.....................................................................................................................................15
Figure 9: COM Port Setting Interface of QCOM........................................................................................15
Figure 10: GNSSFlashTool Configurations for Firmware Upgrade ...........................................................16

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1Introduction
This document specifies the usage of LG69T (AA) EVB (Evaluation Board) which is an assistant tool for
engineers to develop and test Quectel LG69T (AA) module.
1.1. Safety Information
The following safety precautions must be observed during all phases of operation, such as usage, service
or repair of any terminal incorporating Quectel GNSS module. Manufacturers of the terminal should notify
users and operating personnel of the following safety information by incorporating these guidelines into all
manuals of the product. Otherwise, Quectel assumes no liability for customers’ failure to comply with
these precautions.
Ensure the use of the product conforms to the local safety and environment
regulations, and is allowed in the country and the environment required.
Keep away from explosive and flammable materials. The use of electronic
products in extreme power supply conditions and locations with potentially
explosive atmospheres may cause fire and explosion accidents.
The product must be powered by a stable voltage source, and the wiring shall
conform to security precautions and fire prevention regulations.
Proper ESD handling procedures must be followed throughout the mounting,
handling and operation of any application that incorporates the module to avoid
ESD damages.

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2General Overview
2.1. EVB Top View
The following figure illustrates the top view of the EVB.
A
B C D
FG E
J
K
H
I
Figure 1: Top View of LG69T (AA) EVB
Table 1: Interfaces of LG69T (AA) EVB
SN.
Part No.
Description
A
D301, D302
Indication LEDs
B
J201
Micro-USB to UART interface
C
S101
Power switch
D
J101
5 V power interface

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E
J301
LG69T (AA) USB interface
F
S301
LG69T (AA) wakeup button
G
S202
Boot button
H
S201
LG69T (AA) reset button
I
J303, J701, J302
Test points
J
J401
LG69T (AA) antenna interface
K
U301
LG69T (AA) module

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3Interface Applications
3.1. Micro-USB to UART Interface (J201)
Micro-USB to UART interface can supply power to the EVB, and also supports data transmission.
Micro-USB to
UART Interface
Figure 2: Micro-USB to UART Interface
3.2. GNSS Antenna Interface (J401)
The GNSS antenna interface is used to connect an external passive or active GNSS antenna.