Quectel L89 R2.0 User manual

L89 R2.0 EVB User Guide
GNSS Module Series
Version: 1.0
Date: 2021-09-29
Status: Released

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a) We acknowledge no liability for any injury or damage arising from the reliance upon the information.
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Copyright © Quectel Wireless Solutions Co., Ltd. 2021. All rights reserved.

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Safety Information
The following safety precautions must be observed during all phases of operation, such as usage, service,
or repair of any cellular or mobile terminal incorporating L89 R2.0 module. Manufacturers of the terminal
should distribute the following safety precautions to users and operating personnel, and incorporate them
into all manuals supplied with 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 to be used in the country and in the required environment.
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, while the wiring must
comply with security precautions and fire prevention regulations.
Proper ESD handling procedures must be followed throughout the mounting,
handling and operation of any application incorporating the module to avoid ESD
damages.

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About the document
Revision History
Document Information
Title
L89 R2.0 EVB User Guide
Subtitle
GNSS Module Series
Document Type
EVB User Guide
Document Status
Released
Version
Date
Description
-
2021-04-15
Creation of the document
1.0
2021-09-29
First official release

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Contents
Safety Information...................................................................................................................................... 3
About the document .................................................................................................................................. 4
Contents...................................................................................................................................................... 5
Table Index.................................................................................................................................................. 6
Figure Index................................................................................................................................................ 7
1Introduction......................................................................................................................................... 8
2General Overview................................................................................................................................ 9
2.1. EVB Kit Accessories .................................................................................................................. 9
2.2. Connecting Cables and Antenna to EVB................................................................................. 10
3EVB Interfaces................................................................................................................................... 12
3.1. EVB Top View........................................................................................................................... 12
3.2. EVB Interfaces ......................................................................................................................... 13
4Communicating via QCOM Tool...................................................................................................... 15
5Testing via QGNSS Tool................................................................................................................... 17
5.1. COM Port and Baud Rate Setting............................................................................................ 17
5.1.1. Interface Explanation .................................................................................................... 18
6Firmware Upgrade via QGPSFlashTool.......................................................................................... 20
7Appendix References....................................................................................................................... 23

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Table Index
Table 1: List of Accessories........................................................................................................................ 10
Table 2: Detailed EVB Interfaces ...............................................................................................................13
Table 3: J401 Pin Assignment....................................................................................................................14
Table 4: Detailed Description of J401 Pin ..................................................................................................14
Table 5: QGNSS Interface Explanation......................................................................................................18
Table 6: Related Documents...................................................................................................................... 23
Table 7: Terms and Abbreviations ..............................................................................................................23

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Figure Index
Figure 1: EVB Kit Accessories ..................................................................................................................... 9
Figure 2: EVB and Accessories Assembly.................................................................................................10
Figure 3: EVB Top View ............................................................................................................................. 12
Figure 4: USB Port ..................................................................................................................................... 15
Figure 5: COM Port Setting Interface of QCOM ........................................................................................15
Figure 6: NMEA Sentences Output – Displayed on QCOM Tool Interface................................................16
Figure 7: QGNSS Setting...........................................................................................................................17
Figure 8: QGNSS Interface (Connected)................................................................................................... 18
Figure 9: Firmware Upgrading – Step 1.....................................................................................................20
Figure 10: Firmware Upgrading – Step 2...................................................................................................21
Figure 11: Firmware Upgrading – Step 3 ................................................................................................... 21
Figure 12: Firmware Upgrading – Step 4...................................................................................................22
Figure 13: Successful Firmware Upgrading...............................................................................................22

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1Introduction
This document provides infomation on the steps needed to evaluate the Quectel L89 R2.0 module using
the Evaluation Board (EVB). The EVB is a reference tool that allows you to become familiar with the L89
R2.0 module.
Specifically, the document is divided into several sections:
⚫Chapter 2 provides the general overview of EVB kit accessories;
⚫Chapter 3 describes the EVB interfaces;
⚫Chapter 4 describes how to communicate with the module via QCOM tool;
⚫Chapter 5 describes how to test the module via QGNSS tool;
⚫Chapter 6 describes how to upgrade the module via QGPSFlashTool tool;
⚫Chapter 7 is an appendix, which summarizes the relevant documents, terms, and abbreviations
appearing herein.
⚫
For EVB schematic and PCB layout design files, contact Quectel Technical Supports
([e-mail]).
NOTE

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2General Overview
2.1. EVB Kit Accessories
The EVB kit includes: Evaluation Board (EVB), active GNSS antenna, Micro-USB cable, bolts and coupling
nuts. Download the software tools (QCOM, QGNSS and QGPSFlashTool) from our website Download
Zone or contact Quectel Technical Supports.
The EVB kit accessories are shown in the figure below. For more information, see Table 1.
Micro-USB cable
Bolts and coupling nuts
GNSS antenna
EVB
Figure 1: EVB Kit Accessories

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Table 1: List of Accessories
2.2. Connecting Cables and Antenna to EVB
The connection between the EVB and its accessories is shown in the figure below. For detailed information,
refer to the instruction sheet with the EVB kit.
Figure 2: EVB and Accessories Assembly
Items
Description
Quantity
EVB
Evaluation Board
Size: 80 mm × 100 mm
1
USB Cable
Micro-USB cable
1
GNSS Antenna
L89 R2.0 active GNSS antenna
Request the antenna datasheet from Quectel Technical
Supports.
1
Instruction Sheet
The document provides instructions on how to connect the
EVB and its accessories, detailed information on EVB
accessories, etc.
1
Others
Bolts and coupling nuts
4 pairs

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Place the active GNSS antenna where it can detect the satellites with a clear view of the sky.
NOTE

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3EVB Interfaces
3.1. EVB Top View
EVB top view is shown in the figure below.
J403
Antenna connector
D306
GEOFENCE indication LED
D305
JAM_IND indication LED
D304
TXD indication LED
D303
1PPS indication LED
D307
AADET_N indication LED
J401
Test points
S101
Power switch
J103
Micro-USB connector
S302
WAKEUP button
U404
L89 R2.0 module
S301
RESET_N button
Figure 3: EVB Top View

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3.2. EVB Interfaces
The EVB interfaces are detailed in the table below.
Table 2: Detailed EVB Interfaces
Function
Interfaces
Description
Power Supply
J103
Micro-USB
Power supply input:
⚫DC power supply: 4.5–5.5 V, typ. 5.0 V
⚫Current capability should be >200 mA
User Interface
J103
Micro-USB
NMEA sentence output and command input.
RF Input
J403
Antenna Connector
The antenna in the kit supports:
⚫GPS/QZSS L1 C/A
⚫Galileo E1
⚫GLONASS L1
⚫BeiDou B1I
⚫IRNSS L5
⚫SBAS L1
Signal Indication
D303
1PPS Indication LED
Flashing: Successful position fix.
Frequency: 1 Hz.
Extinct: No position fix.
D304
TXD Indication LED
Flashing: Data output from UART TXD pin.
Extinct or Bright: No data output from UART
TXD pin.
D305
JAM_IND Indication LED
Flashing: There is some jamming that may
interfere with the desired signal(s).
Extinct: There is no jamming.
D306
GEOFENCE Indication LED
Flashing: Output high level.
Extinct: Output low level.
The output level state of this pin is
configurable. For more information, see
document [3].
D307
AADET_N Indication LED
Flashing: External active antenna is being
used.
Extinct: Internal antenna is being used.
Switch and Button
S101
Power Switch
Powers the EVB on/off.
S301
RESET_N Button
Press the button for a short time to reset the
L89 R2.0 module.

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Test point distribution is shown below:
Table 3: J401 Pin Assignment
RXD
TXD
1PPS
RESET_N
GND
3.0V
SCL
SDA
3D_FIX
GND
Table 4: Detailed Description of J401 Pin
S302
WAKEUP Button
press the button for a short time and then
release to wake up the module from Backup
mode.
Test Points
J401
Test Points
Pins are detailed in Table 3 below.
Pin Name
I/O
Description
3.0V
PI
NC
SCL
I/O
I2C serial clock
SDA
I/O
I2C serial data
3D_FIX
DO
3D fix indication
GND
-
Ground
RXD
DI
Receives data
TXD
DO
Transmits data
1PPS
DO
1 pulse per second
RESET_N
DI
Resets the module
GND
-
Ground

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4Communicating via QCOM Tool
This chapter explains how to use the QCOM tool to communicate with the module via the Micro-USB
interface. For more information on QCOM tool use, see document [1].
The specific steps are as follows:
Step 1: Connect the EVB and the PC with a Micro-USB cable.
Step 2: Flip the power switch (S101) to ON position to power on the EVB.
Step 3: Run the provided driver installer to install the USB driver.
Step 4: View the USB port number in the Device Manager.
Figure 4: USB Port
Step 5: Install the QCOM tool provided by Quectel. The COM Port Setting interface of QCOM is shown
in the figure below.
Figure 5: COM Port Setting Interface of QCOM
Step 6: Select the correct “COM Port” (USB Port shown in Figure 4 above).
Step 7: Set the correct “Baudrate” (default value: 9600 bps).
Step 8: Click “Open Port” to establish the communication with the EVB. The NMEA sentences output of
the module will be displayed in the receiving bar of QCOM tool.

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Figure 6: NMEA Sentences Output –Displayed on QCOM Tool Interface

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5Testing via QGNSS Tool
This chapter explains how to use the QGNSS tool for verifying the status of L89 R2.0 module. For more
information about QGNSS tool use, see document [2].
5.1. COM Port and Baud Rate Setting
Step 1: Assemble the EVB accessories.
Step 2: Flip the Power switch (S101) to ON position to power on the EVB.
Step 3: Start the QGNSS and click “Setting” and “Serial Port Configuration” (the L89 R2.0 module
supports 9600 bps by default).
Figure 7: QGNSS Setting

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Step 4: Click the “Connect or disconnect”button. The interface shown in the figure below appears
once the module is connected.
Figure 8: QGNSS Interface (Connected)
5.1.1. Interface Explanation
You can view GNSS information, such as CNR message, time, position, speed, and precision in the
QGNSS interface. See the following table to find out more about these parameters.
Table 5: QGNSS Interface Explanation
Icon
Explanation
This sky view interface shows the position of the satellites in use.
The left column icons show the satellites in use and their numbers.
⚫BDS (BeiDou): 4
⚫GLO (GLONASS): 0
⚫GPS: 11
⚫GAL (Galileo): 0
⚫QZSS: 0
⚫NavIC (IRNSS): 0
⚫SBAS: 0
The grid map on the right shows the position of the satellites in
use.

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GPS satellite
BeiDou satellite
GLONASS satellite
Galileo satellite
QZSS satellite
NavIC satellite
⚫PRN 30 CNR is 39 dB/Hz.
⚫Column in bright red means that the navigation data of the
satellite are in use.
⚫PRN 1 CNR is 21 dB/Hz.
⚫Column in light red means that the navigation data of this
satellite are not in use.
⚫Longitude (unit: degree)
⚫Latitude (unit: degree)
⚫Altitude (MSL) (unit: m)
⚫Altitude (EPH) (unit: m)
⚫Receiver Speed (unit: km/h)
⚫Horizontal Dilution of Precision
⚫Position Dilution of Precision
⚫Fix Mode
⚫UTC Date and Time
⚫Total Duration (unit: second)
⚫Last TTFF (unit: second)
⚫Quality Indicator
⚫Total Times
⚫Fixed Points
⚫RTK Float
⚫RTK Fixed
⚫CEP 95 (unit: m)
⚫RMS (unit: m)