Quectel L80 User Manual
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Quectel L80 User Manual

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L80&L80-R&L86&LC86L
EVB User Guide
GNSS Module Series
Version: 2.0
Date: 2020-12-22
Status: Released
www.quectel.com

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Summary of Contents for Quectel L80

  • Page 1 L80&L80-R&L86&LC86L EVB User Guide GNSS Module Series Version: 2.0 Date: 2020-12-22 Status: Released www.quectel.com...
  • Page 2 To the maximum extent permitted by law, Quectel excludes all liability for any loss or damage suffered in connection with the use of the functions and features under development, regardless of whether such loss or damage may have been foreseeable.
  • Page 3 L80&L80-R&L86&LC86L EVB User Guide Copyright The information contained here is proprietary technical information of Quectel. Transmitting, reproducing, disseminating and editing this document as well as using the content without permission are forbidden. Offenders will be held liable for payment of damages. All rights are reserved in the event of a patent grant or registration of a utility model or design.

  • Page 4: About The Document

    Version Date Author Description 2014-08-18 Bond SUN Initial 1. Incorporated the information of L80, L80-R and L86 EVB user guides (created separately years ago) into 2020-12-22 Ronnie HU this manual. 2. Added the applicable module LC86L. L80&L80-R&L86&LC86L_EVB_User_Guide 3 / 30...

  • Page 5: Table Of Contents

    GNSS Module Series L80&L80-R&L86&LC86L EVB User Guide Contents About the Document ........................... 3 Contents ............................... 4 Table Index ..............................5 Figure Index ..............................6 Introduction ............................7 1.1. Safety Information ........................7 General Overview ..........................8 2.1. Top View ............................8 2.2.
  • Page 6 GNSS Module Series L80&L80-R&L86&LC86L EVB User Guide Table Index Table 1: Available Interfaces ........................8 Table 2: List of Accessories ........................10 Table 3: Switches and Buttons ........................14 Table 4: Status Indication LEDs ......................... 15 Table 5: Pin Description of Test Points (J401) ................... 16 Table 6: PowerGPS Interface Explained ....................
  • Page 7 GNSS Module Series L80&L80-R&L86&LC86L EVB User Guide Figure Index Figure 1: Top View of the EVB ........................8 Figure 2: EVB Kit Accessories ........................9 Figure 3: EVB and Accessories Assembly ....................11 Figure 4: Micro-USB Connector ......................... 12 Figure 5: Antenna Connector ........................13 Figure 6: Switches and Buttons .........................

  • Page 8: Introduction

    The following safety precautions must be observed during all phases of operation, such as usage, service or repair of any terminal incorporating Quectel L80, L80-R, L86 and LC86L modules. Manufacturers of the terminal should distribute the following safety information to users and operating personnel and include these guidelines into all manuals supplied with the product.

  • Page 9: General Overview

    GNSS Module Series L80&L80-R&L86&LC86L EVB User Guide General Overview 2.1. Top View The following figure illustrates the top view of the EVB. Figure 1: Top View of the EVB Table 1: Available Interfaces Reference Number Description J403 Antenna connector D303, D304, D305, D306, Indication LEDs (see Chapter 3.4 for details)

  • Page 10: Evb Kit Accessories

    S301 RESET button NOTES The antenna connector is invalid for the L80-R module, as the module does not support an external antenna. The L80-R does not support active antenna detection interface, so the D307 (AADET_N) is invalid for this module as well. Additionally, D305 and D306 are not supported by any of the applicable modules.

  • Page 11: Evb And Accessories Assembly

    Bolts and coupling nuts 4 pairs NOTE As the L80-R module does not support an external antenna, the active antenna is not included in the EVB kit for L80-R. 2.3. EVB and Accessories Assembly For information on how to connect the EVB and its accessories, see the instruction sheet provided in the EVB Kit.
  • Page 12 GNSS Module Series L80&L80-R&L86&LC86L EVB User Guide Figure 3: EVB and Accessories Assembly NOTE As the L80-R module does not support an external antenna, the active antenna is not included in the EVB kit for L80-R. L80&L80-R&L86&LC86L_EVB_User_Guide 11 / 30...

  • Page 13: Evb Interfaces

    GNSS Module Series L80&L80-R&L86&LC86L EVB User Guide EVB Interfaces 3.1. Micro-USB Interface The micro USB connector is used for both power supply input and NMEA sentences output. Micro USB Connector Figure 4: Micro-USB Connector 3.2. Antenna Interface The EVB is mounted with an antenna connector for the connection with an external active GNSS antenna.

  • Page 14: Switches And Buttons

    Antenna Connector Figure 5: Antenna Connector NOTE The antenna connector is invalid for the L80-R module, as the module does not support an external antenna. 3.3. Switches and Buttons The following figure illustrates the switches and buttons on the EVB.

  • Page 15: Status Indication Leds

    Short press (press and then release) the button to S301 RESET reset the module. NOTE L80 and L80-R modules do not support the FORCE_ON interface, so the FORCE_ON button is invalid for these modules. 3.4. Status Indication LEDs D303 D305...

  • Page 16: Test Points

    Extinct: EVB uses the internal patch antenna. NOTES L80-R does not support active antenna detection interface, so D307 is invalid for this module. 2. D305 and D306 LEDs are not supported by any of the applicable modules. 3.5. Test Points The following figure illustrates the EVB test points.
  • Page 17 GNSS Module Series L80&L80-R&L86&LC86L EVB User Guide Table 5: Pin Description of Test Points (J401) Pin No. Signal Description Ground RESET Resets the module 1PPS 1 pulse per second Transmits data Receives data NOTE The other pins are not supported by the applicable modules.

  • Page 18: Evb Operation Procedures

    Figure 9: USB Ports Step 3: Install and then use the QCOM tool provided by Quectel to realize the communication between the module and the PC. The following figure shows the COM Port Setting interface of QCOM: select the correct “COM Port”...

  • Page 19: Firmware Upgrade

    GNSS Module Series L80&L80-R&L86&LC86L EVB User Guide 4.2. Firmware Upgrade Quectel L80, L86 and LC86L modules upgrade the firmware via micro-USB interface. Follow the procedures below to upgrade firmware. Step 1: Install and open the firmware upgrade tool FlashTool on your computer.
  • Page 20 GNSS Module Series L80&L80-R&L86&LC86L EVB User Guide NOTE As the L80-R module is the ROM-based version without built-in Flash, the module has no firmware upgrade function. L80&L80-R&L86&LC86L_EVB_User_Guide 19 / 30...

  • Page 21: Using Powergps

    GNSS Module Series L80&L80-R&L86&LC86L EVB User Guide Using PowerGPS In this chapter, you can find out how to use PowerGPS, a tool for checking the status of GNSS receivers, when you are working with your EVB. 5.1. COM and Baud Rate Setting Step 1: After EVB accessories are assembled, turn on the EVB and start PowerGPS (PowerGPS Trial 2.3.5 is used as an illustration in this document).

  • Page 22: Interface Explained

    GNSS Module Series L80&L80-R&L86&LC86L EVB User Guide Figure 13: PowerGPS Interface (Connected) 5.1.1. Interface Explained On the PowerGPS interface, you can view GNSS information, such as CNR message, time, position, speed and precision. To find out more about these parameters, see the table below.

  • Page 23: Pmtk Command Sending

    GNSS Module Series L80&L80-R&L86&LC86L EVB User Guide  The carrier-to-noise ratio (CNR) of PRN 28 is 49 dB/Hz.  G stands for a GPS satellite, B for a BeiDou satellite, while S means that it is a SBAS satellite. ...

  • Page 24: Automatic Ttff Testing

    GNSS Module Series L80&L80-R&L86&LC86L EVB User Guide Figure 14: PMTK Command Sending via PowerGPS 5.3. Automatic TTFF Testing PowerGPS tool allows users to measure the TTFF (Time to First Fix) under different testing conditions. The TTFF can be tested under full cold start, cold start, warm start or hot start conditions, and the number of tests can be selected from 1, 10, 20, 100, 1000 and 10000.
  • Page 25 GNSS Module Series L80&L80-R&L86&LC86L EVB User Guide Restart Type 启动类型 The Number of Tests 测试次数 Figure 15: Static TTFF Testing via PowerGPS Step 2: Click “Set Reference Point” and the Options window is shown as below. Next, choose “Reference Location”.
  • Page 26 GNSS Module Series L80&L80-R&L86&LC86L EVB User Guide After that, the interface will be shown as below. Click “Use Mean Position” and then “OK”. Figure 17: Click Use Mean Position Step 3: Return to the interface shown as below and click “Config” to get to TTFF Configuration interface.
  • Page 27 GNSS Module Series L80&L80-R&L86&LC86L EVB User Guide Figure 19: Set TTFF Time-out (Sec) In general, if hot start is selected, it is recommended to set “TTFF Time-out (sec)” to 10 s. If warm start is selected, it can be set as 50 s. Lastly, if cold start is selected, it can be set as 100 s. “TTFF Time–out (sec)”...
  • Page 28 GNSS Module Series L80&L80-R&L86&LC86L EVB User Guide Figure 20: Click Run/Stop Button Step 5: After testing, you can see the testing results displayed visually in charts. The test results are stored in the directory where the tool is installed. L80&L80-R&L86&LC86L_EVB_User_Guide...

  • Page 29: Appendix A References

    GNSS Module Series L80&L80-R&L86&LC86L EVB User Guide Appendix A References Table 7: Related Documents Document Name Description Quectel_L80_Hardware_Design L80 Hardware Design Quectel_L80-R_Hardware_Design L80-R Hardware Design Quectel_L86_Hardware_Design L86 Hardware Design Quectel_LC86L_Hardware_Design LC86L Hardware Design Quectel_L80_GNSS_Protocol_Specification L80 GNSS Protocol Specification Quectel_L80-R_GNSS_Protocol_Specification L80-R GNSS Protocol Specification...
  • Page 30 GNSS Module Series L80&L80-R&L86&LC86L EVB User Guide Carrier-to-Noise Ratio Digital input Digital output Electro-Static Discharge Evaluation Board Global Positioning System GNSS Global Navigation Satellite System Ground Light Emitting Diode Micro-USB Micro Universal Serial Bus NMEA National Marine Electronics Association Personal Computer...
  • Page 31 GNSS Module Series L80&L80-R&L86&LC86L EVB User Guide Universal Time Coordinated WGS84 World Geodetic System 1984 L80&L80-R&L86&LC86L_EVB_User_Guide 30 / 30...

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