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L76LEVB-KIT

L76LEVB-KIT

  • 厂商:

    QUECTEL(移远)

  • 封装:

  • 描述:

    - 评估板

  • 数据手册
  • 价格&库存
L76LEVB-KIT 数据手册
L76 Series EVB User Guide GNSS Module Series Version: 2.1 Date: 2021-08-05 Status: Released GNSS Module Series Our aim is to provide customers with timely and comprehensive service. For any assistance, 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: +86 21 5108 6236 Email: info@quectel.com Or our local office. For more information, visit: http://www.quectel.com/support/sales.htm. For technical support, or to report documentation errors, visit: http://www.quectel.com/support/technical.htm Or send an email to support@quectel.com. 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 the use of or reliance upon the information. All information supplied herein is subject to change without prior notice. Disclaimer While Quectel has made efforts to ensure that the functions and features under development are free from errors, it is possible that these functions and features could contain errors, inaccuracies and omissions. Unless otherwise provided by valid agreement, Quectel makes no warranties of any kind, implied or express, with respect to the use of features and functions under development. 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. Duty of Confidentiality The Receiving Party shall keep confidential all documentation and information provided by Quectel, except when the specific permission has been granted by Quectel. The Receiving Party shall not access or use Quectel’s documentation and information for any purpose except as expressly provided herein. Furthermore, the Receiving Party shall not disclose any of the Quectel's documentation and information to any third party without prior written consent by Quectel. Quectel reserves the right to take legal action for any noncompliance with the above requirements, unauthorized use, or other illegal or malicious use of the documentation and information. L76_Series_EVB_User_Guide 1 / 31 GNSS Module Series 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 is 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. Copyright © Quectel Wireless Solutions Co., Ltd. 2021. All rights reserved. L76_Series_EVB_User_Guide 2 / 31 GNSS Module Series 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 L76-LB module. Manufacturers of the terminal should send the following safety information to users and operating personnel, and incorporate these guidelines into all manuals supplied with the product. Otherwise, Quectel assumes no liability for customers’ failure to comply with these precautions. Ensure that the product may be used in the country and the required environment, as well as that it conforms to the local safety and environmental regulations. 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 conform to security precautions and fire prevention regulations. Proper ESD handling procedures must be followed throughout the mounting, handling and operation of any devices and equipment that incorporate the module to avoid ESD damages. L76_Series_EVB_User_Guide 3 / 31 GNSS Module Series About the Document Document Information Title L76 Series EVB User Guide Subtitle GNSS Module Series Document Type EVB User Guide Document Status Released Revision History Version Date Description 1.0 2013-02-25 Initial 1.1 2013-03-26 Optimized the contents of Chapter 3. 2016-05-03 1. Changed the document name from Quectel_L76_EVB_User_Guide to Quectel_L76_Series_EVB_User_Guide. 2. Incorporated the related information of L76-L. 2021-08-05 1. Added the applicable module L76-LB. 2. Updated the overall structure of the document, including but not limited to the adding of Chapters 4, 5 and 6. 2.0 2.1 L76_Series_EVB_User_Guide 4 / 31 GNSS Module Series Contents Safety Information ...................................................................................................................................... 3 About the Document .................................................................................................................................. 4 Contents ...................................................................................................................................................... 5 Table Index .................................................................................................................................................. 6 Figure Index ................................................................................................................................................ 7 1 Introduction ......................................................................................................................................... 8 2 General Overview ................................................................................................................................ 9 2.1. EVB Kit Accessories .................................................................................................................. 9 2.2. Connecting Cables and Antenna to EVB ................................................................................. 10 3 Board User Interfaces....................................................................................................................... 11 3.1. EVB Top View............................................................................................................................ 11 3.2. Board User Interfaces ............................................................................................................... 11 4 Using QCOM Tool to Communicate ................................................................................................ 14 4.1. Communication via the Micro-USB Interface........................................................................... 14 5 Using QGNSS Tool to Test............................................................................................................... 16 5.1. COM Port and Baud Rate Setting ............................................................................................ 16 5.1.1. Interface Explanation .................................................................................................... 17 5.2. TTFF Testing ............................................................................................................................ 19 5.3. AGNSS Setting ........................................................................................................................ 21 5.3.1. Assistant GNSS Online ................................................................................................. 21 5.3.2. Assistant GNSS Offline ................................................................................................. 23 6 Using QGPSFlashTool to Upgrade Firmware ................................................................................ 27 7 Appendix References ....................................................................................................................... 30 L76_Series_EVB_User_Guide 5 / 31 GNSS Module Series Table Index Table 1: List of Accessories ........................................................................................................................ 10 Table 2: Detailed EVB Interfaces ............................................................................................................... 12 Table 3: J106 Pin Detailed Description ...................................................................................................... 13 Table 4: Explanation of QGNSS Interface ................................................................................................. 17 Table 5: Related Documents ...................................................................................................................... 30 Table 6: Terms and Abbreviations .............................................................................................................. 30 L76_Series_EVB_User_Guide 6 / 31 GNSS Module Series Figure Index Figure 1: EVB Kit Accessories ..................................................................................................................... 9 Figure 2: EVB and Accessories 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 by Module – Displayed on QCOM Tool Interface .............................. 15 Figure 7: QGNSS Setting ........................................................................................................................... 16 Figure 8: QGNSS Interface (Connected) ................................................................................................... 17 Figure 9: Static TTFF Testing via QGNSS ................................................................................................. 19 Figure 10: TTFF Test Settings .................................................................................................................... 19 Figure 11: AGNSS Setting .......................................................................................................................... 20 Figure 12: Run or Stop Test ....................................................................................................................... 20 Figure 13: Test Results............................................................................................................................... 21 Figure 14: AGNSS Setting via QGNSS – Assistant GNSS Online ............................................................ 21 Figure 15: Assistant GNSS Online Setting................................................................................................. 22 Figure 16: Connect and Download – AGNSS Online ................................................................................ 22 Figure 17: Download Selected File – AGNSS Online ................................................................................ 23 Figure 18: Successfully Downloaded to the Module – AGNSS Online...................................................... 23 Figure 19: AGNSS Setting via QGNSS - Assistant GNSS Offline ............................................................. 24 Figure 20: Assistant GNSS Offline Setting................................................................................................. 24 Figure 21: Connect and Download – AGNSS Offline ................................................................................ 25 Figure 22: Download Selected File – AGNSS Offline ................................................................................ 25 Figure 23: Successfully Downloaded to the Module – AGNSS Offline...................................................... 26 Figure 24: Firmware Upgrade – Step 1...................................................................................................... 27 Figure 25: Firmware Upgrade – Step 2...................................................................................................... 28 Figure 26: Firmware Upgrade – Step 3...................................................................................................... 28 Figure 27: Firmware Upgrade – Step 4...................................................................................................... 29 Figure 28: Successful Firmware Upgrade ................................................................................................. 29 L76_Series_EVB_User_Guide 7 / 31 GNSS Module Series 1 Introduction This document provides info on the steps needed to evaluate the Quectel L76 series modules using the Evaluation Board (EVB). The EVB is a reference tool that allows you to become familiar with the L76 series modules. Specifically, the document is divided into several sections: ⚫ ⚫ ⚫ ⚫ ⚫ ⚫ Chapter 2 provides the general overview of EVB Kit accessories. Chapter 3 describes the EVB user interfaces. Chapter 4 describes how to communicate with a module by using the QCOM tool; Chapter 5 describes how to test the module by using the QGNSS tool; Chapter 6 describes how to upgrade firmware of the module by using the QGPSFlashTool; Chapter 7 is an appendix, which summarizes the relevant documents, terms and abbreviations appearing herein. In this document, Quectel L76 series includes L76, L76-L and L76-LB modules. For the EVB user guide of L76-L (L) and L76-LB (L) modules, see document [4]. ⚫ NOTE If you need EVB schematic and PCB layout design files for reference, request them from Quectel Technical Supports (support@quectel.com). L76_Series_EVB_User_Guide 8 / 31 GNSS Module Series 2 General Overview 2.1. EVB Kit Accessories The EVB Kit includes Evaluation Board (EVB), Active GNSS Antenna, Micro-USB Cable, Bolts and Coupling Nuts. You can download the software tools (QCOM, QGNSS, QGPSFlashTool) from our website Download Zone or request them from Quectel Technical Supports. The EVB Kit accessories are shown in the figure below, and check Table 1 for details. Active GNSS antenna Bolts and coupling nuts EVB Micro-USB cable Figure 1: EVB Kit Accessories L76_Series_EVB_User_Guide 9 / 31 GNSS Module Series Table 1: List of Accessories Items Description Quantity EVB Evaluation Board Size: 60 mm × 70 mm 1 USB Cable Micro-USB Cable 1 GNSS Antenna Active GNSS Antenna Request the Antenna Datasheet from Quectel Technical Supports. 1 Instruction Sheet A sheet that lists instructions: how to connect the EVB, details on EVB accessories, and much more. 1 Other Bolts and Coupling Nuts 4 pairs 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 on how to connect the EVB and its accessories, refer to the instruction sheet inside the EVB Kit. Figure 2: EVB and Accessories Assembly NOTE Place the active GNSS antenna where it can detect the satellites with a clear view of the sky. L76_Series_EVB_User_Guide 10 / 31 GNSS Module Series 3 Board User Interfaces 3.1. EVB Top View EVB top view is shown in the figure below. J101 U101 Antenna connector L76 series module J106 Test points S101 STANDBY switch D101 1PPS and TXD indication LEDS J301 UART connector J201 Micro-USB connector UART S201 Power switch S301 USB swicth Z101 RESET button Z102 FORCE_ON button EVB version Figure 3: EVB Top View 3.2. Board User Interfaces The EVB interfaces are detailed in the table below. L76_Series_EVB_User_Guide 11 / 31 GNSS Module Series Table 2: Detailed EVB Interfaces Function Interfaces Description Power Supply J201 Micro-USB Power supply input: ⚫ DC power supply: 4.5–5.5 V, typ. 5.0 V ⚫ Current capability should be > 100 mA J201 Micro-USB NMEA sentence output and command input J301 UART NMEA sentence output and command input J101 Antenna Connector The antenna in the kit supports: ⚫ GPS L1 C/A ⚫ GLONASS L1 ⚫ BeiDou B1I ⚫ QZSS L1 C/A ⚫ SBAS L1 User Interface RF Input Signal Indication Switches and Buttons Test Points D101 Indication LEDS TXD (Blue LED) Flash: Data output from UART TXD. Extinct or Bright: No data output from UART TXD. 1PPS (Red LED) Flash: Successful position fix. The frequency is 1 Hz. Extinct: No position fix. S201 Power Switch Power the EVB on/off S101 STANDBY Switch (ENTER↔EXIT) Switch to “ENTER”, the module enters the standby mode. Switch to “EXIT”, the module exits the standby mode. S301 UART↔USB Switch Switch between USB data transfer and UART data transfer features. Z101 RESET Button Short press the button to reset the module. Z102 FORCE_ON Button Short press the button to wake up the module from the backup mode. J106 Test Points Pins are detailed in Table 3 below. L76_Series_EVB_User_Guide 12 / 31 GNSS Module Series Test point distribution is shown below: J106 Pin Assignment: 32K/DRIN AADET_N 1PPS STANDBY GND TIMER RESET TXD1 RXD1 GND Table 3: J106 Pin Detailed Description Pin Name I/O Description 32K/DRIN - NC AADET_N - NC 1PPS DO 1 pulse per second STANDBY DI Enters or exits the standby mode GND - Ground TIMER DO An open drain output signal which controls the ON/OFF status of GNSS modules RESET DI Resets the module TXD DO Transmits data RXD DI Receives the data GND - Ground L76_Series_EVB_User_Guide 13 / 31 GNSS Module Series 4 Using QCOM Tool to Communicate This chapter illustrates how to use the QCOM tool to communicate with the module via the Micro-USB interface. Download the QCOM tool from our website Download Zone. 4.1. Communication via the Micro-USB Interface Step 1: Connect the EVB and the PC with a Micro-USB cable via the Micro-USB interface. Step 2: Set the power switch (S201) to ON position to power on the EVB and switch S301 to USB position. Step 3: Run the provided driver installer to install the USB driver. Step 4: View the USB port numbers 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. 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). L76_Series_EVB_User_Guide 14 / 31 GNSS Module Series Step 8: Click “Open Port” as shown in Figure 5 above, then the communication with EVB is established successfully. In this case, the NMEA sentences output by the module will be displayed through the QCOM tool, as shown in Figure 6 below. For more information about QCOM usage, see document [1]. Figure 6: NMEA Sentences Output by Module – Displayed on QCOM Tool Interface L76_Series_EVB_User_Guide 15 / 31 GNSS Module Series 5 Using QGNSS Tool to Test This chapter provides a brief explanation on the QGNSS software tool which can be used to verify the status of GNSS modules. For more information about QGNSS usage, see document [2]. Download the QGNSS tool from our website Download Zone. 5.1. COM Port and Baud Rate Setting Step 1: Assemble the EVB Accessories. Step 2: Set the power switch (S201) to ON position in order to power on the EVB and switch S301 to USB position. Step 3: Start the QGNSS and click “Setting” and “Serial Port Configuration” (the L76 series supports 9600 bps by default), as shown in the figure below. Figure 7: QGNSS Setting L76_Series_EVB_User_Guide 16 / 31 GNSS Module Series Step 4: Click the “Connect or disconnect” button. After connecting the module, the interface as shown in the figure below. Figure 8: QGNSS Interface (Connected) 5.1.1. Interface Explanation You can view GNSS information, such as CNR info, time, position, speed, and precision in the QGNSS interface. To find out more about these parameters, see the following table. Table 4: Explanation of QGNSS Interface Icon Explanation This sky view interface shows the satellite 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: 0 ⚫ SBAS: 0 The grid map on the right shows the position of the satellites in use. L76_Series_EVB_User_Guide 17 / 31 GNSS Module Series GPS satellite BeiDou satellite GLONASS satellite Galileo satellite QZSS satellite NavIC satellite ⚫ ⚫ ⚫ ⚫ L76_Series_EVB_User_Guide PRN 30 CNR is 39 dB/Hz. Column in bright red means that the navigation data of the satellite is in use. PRN 1 CNR is 21 dB/Hz. Column in light red means that the navigation data of this satellite is 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) 18 / 31 GNSS Module Series 5.2. TTFF Testing The QGNSS tool allows you to execute TTFF (Time to First Fix) testing under the following testing conditions: ⚫ ⚫ ⚫ ⚫ Full cold start Cold start Warm start Hot start QGNSS configuration steps for TTFF testing: Step 1: Click the “Tools” menu, and select the “Static TTFF Testing” as shown in the figure below. Figure 9: Static TTFF Testing via QGNSS Step 2: Select “Restart type”, set the “Number of tests” and “TTFF Time-out (Sec)”, as shown in the figure below. Figure 10: TTFF Test Settings L76_Series_EVB_User_Guide 19 / 31 GNSS Module Series Step 3: AGNSS is optional when testing TTFF with QGNSS 1, as shown in the figure below. Click “Set AGNSS” button to set up online AGNSS. For more information, see Chapter 5.3.1. Figure 11: AGNSS Setting Step 4: Click on the “Run” button to start the test. OR Click on the “Stop” button to stop the test. Figure 12: Run or Stop Test 1 You can set AGNSS either in this step, or before the TTFF setting through the ways illustrated in Chapter 5.3. L76_Series_EVB_User_Guide 20 / 31 GNSS Module Series Step 5: View the test results displayed visually in charts as shown in the figure below. The test results are stored in the directory where the tool is installed. Figure 13: Test Results 5.3. AGNSS Setting There are two ways to use AGNSS to improve the TTFF. 5.3.1. Assistant GNSS Online Step 1: Click the “AGNSS” menu, and select the “Assistant GNSS Online” as shown in the figure below. Figure 14: AGNSS Setting via QGNSS – Assistant GNSS Online Step 2: In the “Assistant GNSS Online” interface, fill in the FTP server information, and set “Time”, “Position” and “Restart type” according to your needs. L76_Series_EVB_User_Guide 21 / 31 GNSS Module Series Figure 15: Assistant GNSS Online Setting Step 3: After clicking the “Connect” button, select online AGNSS files according to your needs and then click “Download selected file” to download the files from the server. Figure 16: Connect and Download – AGNSS Online Step 4: Click the “Select file” button to select the files to be downloaded to the module, and then click the “Reset and Transfer” button to start downloading, as shown in the figure below. L76_Series_EVB_User_Guide 22 / 31 GNSS Module Series Figure 17: Download Selected File – AGNSS Online Step 5: When the download is successful, the progress bar will indicate 100 % and there will be a green rectangle on the screen, as shown in the figure below. Figure 18: Successfully Downloaded to the Module – AGNSS Online 5.3.2. Assistant GNSS Offline Step 1: Click the “AGNSS” menu, and select the “Assistant GNSS Offline” as shown in the figure below. L76_Series_EVB_User_Guide 23 / 31 GNSS Module Series Figure 19: AGNSS Setting via QGNSS - Assistant GNSS Offline Step 2: In the “Assistant GNSS Offline” interface, fill in the FTP server information, and set “Time”, “Position” and “Restart type” according to your needs. Figure 20: Assistant GNSS Offline Setting Step 3: After clicking the “Connect” button, select the offline AGNSS files according to your needs and then click “Download selected file” to download the files from the server. L76_Series_EVB_User_Guide 24 / 31 GNSS Module Series Figure 21: Connect and Download – AGNSS Offline Step 4: Click the “Select file” button to select the files to be downloaded to the module, and then click the “Download to module” button to start downloading, as shown in the figure below. Figure 22: Download Selected File – AGNSS Offline Step 5: When the download is successful, the progress bar will indicate 100 % and there will be a green rectangle on the screen, as shown in the figure below. L76_Series_EVB_User_Guide 25 / 31 GNSS Module Series Figure 23: Successfully Downloaded to the Module – AGNSS Offline L76_Series_EVB_User_Guide 26 / 31 GNSS Module Series 6 Using QGPSFlashTool to Upgrade Firmware Quectel L76 series module supports firmware upgrade via UART interface by using the QGPSFlashTool. Download the QGPSFlashTool from our website Download Zone. Before you start the firmware upgrade process: First: Connect the EVB to a PC using a Micro-USB cable. Second: Set the power switch (S201) to ON position to power on the EVB and switch S301 to USB. Firmware upgrade steps: Step 1: Open QGPSFlashTool. Click “Config”, then select “Options” as shown in the figure below. Figure 24: Firmware Upgrade – Step 1 Step 2: In the Options popup, set the number of channels to be used. In the “Tool Options” drop-down list, select “L76” 2, then click “OK” as shown in the figure below. 2 Select “L76” for all L76 series modules including L76, L76-L and L76-LB. L76_Series_EVB_User_Guide 27 / 31 GNSS Module Series Figure 25: Firmware Upgrade – Step 2 Step 3: Double click the “ROM file” field to select the ROM file, e.g. “L76LBNR03A01SCV03_GLN.bin”, then double click the “DA File” field to select the DA file, e.g. “MTK_AllInOne_DA_MT3333_MP.bin”, as shown in the figure below. Figure 26: Firmware Upgrade – Step 3 Step 4: Confirm the “Serial Port” and “Baudrate”, and then then click “Start” to download, as shown in the figure below. The setting of the baud rate will affect the download speed. Based on Step 2, the baud rate will be automatically selected. L76_Series_EVB_User_Guide 28 / 31 GNSS Module Series Figure 27: Firmware Upgrade – Step 4 Step 5: When the firmware upgrade is successful, the progress bar will indicate 100 % and there will be a green rectangle on the screen, as shown in the figure below. Figure 28: Successful Firmware Upgrade ⚫ NOTE Make sure the module is in continuous mode before firmware upgrading. L76_Series_EVB_User_Guide 29 / 31 GNSS Module Series 7 Appendix References Table 5: Related Documents Document Name [1] Quectel_QCOM_User_Guide [2] Quectel_QGNSS_User_Guide [3] Quectel_QGPSFlashTool_User_Guide [4] Quectel_L76-L(L)&L76-LB(L)_EVB_User_Guide Table 6: Terms and Abbreviations Abbreviation Description 2D 2 Dimension 3D 3 Dimension BeiDou BeiDou Navigation Satellite System COM Port Communication Port CEP Circular Error Probable CNR Carrier-to-Noise Ratio DI Digital Input DO Digital Output EPH Ellipsoidal Height ESD Electrostatic Discharge EVB Evaluation Board GND Ground L76_Series_EVB_User_Guide 30 / 31 GNSS Module Series GNSS Global Navigation Satellite System GPS Global Positioning System I/O Input/Output LED Light Emitting Diode LNA Low-Noise Amplifier Micro-USB Micro Universal Serial Bus MSL Mean Sea Level NMEA NMEA (National Marine Electronics Association) 0183 Interface Standard PC Personal Computer PI Power Input PMTK MTK Proprietary Protocol PO Power Output PPS Pulse Per Second PRN Pseudorandom Noise RMS Root Mean Square RTK Real-Time Kinematic RXD Receive Data (Pin) SBAS Satellite-Based Augmentation System SPS Standard Positioning Service SV Satellite Vehicle TTFF Time to First Fix TXD Transmit Data (Pin) USB Universal Serial Bus UTC Coordinated Universal Time WGS84 World Geodetic System 1984 L76_Series_EVB_User_Guide 31 / 31
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