Quectel LC98S User Manual
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Quectel LC98S User Manual

Gnss module
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LC98S
EVB User Guide
GNSS Module Series
Version: 1.0
Date: 2022-06-13
Status: Released

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Summary of Contents for Quectel LC98S

  • Page 1 LC98S EVB User Guide GNSS Module Series Version: 1.0 Date: 2022-06-13 Status: Released...
  • Page 2 GNSS Module Series At Quectel, our aim is to provide timely and comprehensive services to our customers. If you require any assistance, please contact our headquarters: Quectel Wireless Solutions Co., Ltd. Building 5, Shanghai Business Park Phase III (Area B), No.1016 Tianlin Road, Minhang District, Shanghai...
  • Page 3 Except as otherwise set forth herein, nothing in this document shall be construed as conferring any rights to use any trademark, trade name or name, abbreviation, or counterfeit product thereof owned by Quectel or any third party in advertising, publicity, or other aspects.

  • Page 4: 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 LC98S 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.

  • Page 5: About The Document

    GNSS Module Series About the Document Document Information Title LC98S EVB User Guide Subtitle GNSS Module Series Document Type EVB User Guide Document Status Released Revision History Version Date Description 2022-03-03 Creation of the document 2022-06-13 First official release LC98S_EVB_User_Guide...

  • Page 6: Table Of Contents

    GNSS Module Series Contents Safety Information ............................ 3 About the Document ..........................4 Contents ..............................5 Table Index ............................... 6 Figure Index .............................. 7 Introduction ............................8 General Overview ..........................9 EVB Kit ............................. 9 2.1. Connect Cables and Antenna to EVB ..................10 2.2.
  • Page 7 GNSS Module Series Table Index Table 1: List of Kit Components ......................... 9 Table 2: Detailed EVB Interfaces ......................12 Table 3: J104 Pin Assignment ......................... 12 Table 4: J104 Pin Detailed Description ....................13 Table 5: QGNSS Interface Explanation ....................17 Table 6: Related Documents ........................
  • Page 8 GNSS Module Series Figure Index Figure 1: EVB and Components ........................ 9 Figure 2: EVB and Components Assembly ..................... 10 Figure 3: EVB Top View ..........................11 Figure 4: USB Port ..........................14 Figure 5: COM Port Setting Interface of QCOM ..................14 Figure 6: NMEA Sentences Output –...

  • Page 9: Introduction

    Introduction This document provides information on the steps needed to evaluate the Quectel LC98S module using the Evaluation Board (EVB). The EVB is a convenient tool that allows you to become familiar with the LC98S module. Specifically, the document is divided into several sections: ⚫...

  • Page 10: General Overview

    The EVB Kit includes: Evaluation Board (EVB), Active GNSS Antenna, Micro-USB Cable, USB flash drive, Bolts and Coupling Nuts. Download the software tools (QCOM, QGNSS, GNSSFlashTool) from our website Download Zone or request them from Quectel Technical Support. The EVB Kit contents are shown in the figure below. Check Table 1 for details.

  • Page 11: Connect Cables And Antenna To Evb

    USB Flash Drive documents, tools, and drivers) Active GNSS Antenna GNSS Antenna Request the Antenna Datasheet from Quectel Technical Support. Sheet providing instructions on how to connect the EVB and Instruction Sheet its components, detailed information on EVB contents, etc.

  • Page 12: Evb User Interfaces

    D402 TXD and Module Power S403 indication LEDs RESET button J103 Active antenna connector EVB version U102 LC98S module Figure 3: EVB Top View 3.2. EVB Interfaces The EVB interfaces are detailed in the table below. LC98S_EVB_User_Guide 11 / 27...
  • Page 13 GNSS Module Series Table 2: Detailed EVB Interfaces Function Interfaces Description Power supply input: J303 ⚫ Power Supply DC power supply: 4.5–5.5 V, typ. 5.0 V Micro-USB ⚫ Current capability should be > 100 mA J303 Standard NMEA sentence output and PSTM Communication Interface Micro-USB command input and output.
  • Page 14 GNSS Module Series Table 4: J104 Pin Detailed Description Pin Name Description Receives data Transmits data Ground Forces the module to enter Boot download mode BOOT One pulse per second 1PPS USB_DM USB_DP 3.3 V output 3.3V LC98S_EVB_User_Guide 13 / 27...

  • Page 15: Communication Via Qcom Tool

    Step 4: View the USB port number in the Device Manager, as shown in the figure below. 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 ( Default value: 115200 bps Figure 5: COM Port Setting Interface of QCOM Step 6: Select the correct “COM Port”...
  • Page 16 GNSS Module Series Step 7: Set the correct “Baudrate”. Step 8: Click “Open Port” to establish communication with the EVB. The NMEA sentences output by the module will be displayed in the receiving bar of the QCOM tool, as shown in the figure below. Figure 6: NMEA Sentences Output –...

  • Page 17: Test Via Qgnss Tool

    This chapter explains how to use the QGNSS software tool for verifying the status of GNSS module. For more information about QGNSS use, see document [2]. Download the QGNSS tool from our website Download Zone or request it from Quectel Technical Support. 5.1. QGNSS Setting Step 1: Assemble the EVB components.

  • Page 18: Qgnss Interface Explanation

    GNSS Module Series Figure 8: QGNSS Interface (Connected) 5.1.1. QGNSS Interface Explanation You can view GNSS information, such as C/N 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...
  • Page 19 GNSS Module Series GPS satellite BDS satellite GLONASS satellite Galileo satellite QZSS satellite NavIC satellite ⚫ PRN 30 C/N is 39 dB-Hz. ⚫ Column in bright red means that the navigation data of the satellites are in use. ⚫ PRN 1 C/N is 21 dB-Hz.
  • Page 20 GNSS Module Series ⚫ Total Times ⚫ Fixed Points ⚫ RTK Float ⚫ RTK Fixed LC98S_EVB_User_Guide 19 / 27...

  • Page 21: Firmware Download Via Gnssflashtool

    Firmware Download via GNSSFlashTool Quectel LC98S module upgrades firmware via the UART interface using GNSSFlashTool. Download the GNSSFlashTool from our website Download Zone or request it from Quectel Technical Support. 6.1. Firmware Download in Boot Download Mode Before you start the firmware download process: First: Connect the EVB to a PC with a Micro-USB cable.
  • Page 22 GNSS Module Series ② Figure 10: Firmware Download – Step 2 Step 3: Select the “Port” and “Baud Rate” and then click “Start” button. Press and hod the BOOT button before flipping the power switch (S201) to ON position, and the release the BOOT button to enter Boot Download mode.

  • Page 23: Firmware Upgrade In Normal Operating Mode

    Second: Flip the Power switch (S201) to OFF position to power on the EVB. Firmware upgrade steps in Normal operating mode: Step 1: Open GNSSFlashTool and select “L89L26LC98S_Upgrade” for LC98S module in the drop-down box of “Tool Options”, as shown in the figure below.
  • Page 24 GNSS Module Series ② Figure 14: Firmware Upgrade – Step 2 Step 3: Select the “Port” and “Baud Rate”. Click “Start” button and then flip the power switch (S201) to ON position ③ Figure 15: Firmware Upgrade - Step 3 Step 4: Upon successful firmware upgrade, the GNSSFlashTool green progress bar on the screen will indicate “PASS”, as shown in the figure below.
  • Page 25 GNSS Module Series Figure 16: Successful Firmware Upgrade – Step 4 ⚫ NOTE Make sure the module is in Continuous mode before downloading firmware in Normal operating mode. LC98S_EVB_User_Guide 24 / 27...

  • Page 26: Appendix References

    GNSS Module Series Appendix References Table 6: Related Documents Document Name Quectel_QCOM_User_Guide Quectel_QGNSS_User_Guide Table 7: Terms and Abbreviations Abbreviation Description 2 Dimension 3 Dimension BeiDou Navigation Satellite System Circular Error Probable COM Port Communication Port Direct Current Digital Input Digital Output Dead Reckoning Ellipsoidal Height Electrostatic Discharge...
  • Page 27 GNSS Module Series Ground GNSS Global Navigation Satellite System Global Positioning System Inter-Integrated Circuit Input/Output IRNSS Indian Regional Navigation Satellite System Light Emitting Diode Low-Noise Amplifier Micro-USB Micro Universal Serial Bus NAVIC Indian Regional Navigation Satellite System NMEA NMEA (National Marine Electronics Association) 0183 Interface Standard Personal Computer Printed Circuit Board Power Input...
  • Page 28 GNSS Module Series TTFF Time to First Fix Transmit Data (Pin) UART Universal Asynchronous Receiver/Transmitter Universal Serial Bus Coordinated Universal Time LC98S_EVB_User_Guide 27 / 27...

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