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GNSS Module Series

LG69T(AA,AD)_EVB_User_Guide 22 / 29

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Longitude degree (unit: degree)

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Latitude degree (unit: degree)

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Altitude (MSL) (unit: m)

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Altitude (EPH) (unit: m)

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Receiver speed (unit: km/h)

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Horizontal dilution of precision

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Position dilution of precision

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Quality Indicator: 2D/3D

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UTC date and time

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Total number of seconds (unit: second)

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Age of differential GPS data

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The last time of TTFF (unit: second)

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Total Times

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Fixed Points

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RTK Float

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RTK Fixed

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Содержание GNSS Module Series

Страница 1: ...LG69T AA AD EVB User Guide GNSS Module Series Version 1 0 0 Date 2021 09 16 Status Preliminary ...

Страница 2: ...ough we employ commercially reasonable efforts to provide the best possible experience you hereby acknowledge and agree that this document and related services hereunder are provided to you on an as available basis We may revise or restate this document from time to time at our sole discretion without any prior notice to you Use and Disclosure Restrictions License Agreements Documents and informat...

Страница 3: ...et sell offer for sale or otherwise maintain production of any our products or any other hardware software device tool information or product We moreover disclaim any and all warranties arising from the course of dealing or usage of trade Disclaimer a We acknowledge no liability for any injury or damage arising from the reliance upon the information b We shall bear no liability resulting from any ...

Страница 4: ...h 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 mus...

Страница 5: ... the Document Revision History Document Information Title LG69T AA AD EVB User Guide Subtitle GNSS Module Series Document Type EVB User Guide Document Status Preliminary Version Date Description 2020 04 23 Creation of the document 1 0 0 2021 09 16 Preliminary ...

Страница 6: ...Interfaces 11 3 1 EVB Side View 11 3 2 Board User Interfaces 11 4 DR Application 15 4 1 Installation Diagram 15 4 2 Calibration Procedure 16 4 2 1 Determination Process of EVB Installation Angle 17 4 2 2 Main Calibration Procedure 17 4 3 Calibration Result Monitoring 18 5 Using QGNSS Tool to Test 19 5 1 COM Port and Baud Rate Setting 19 5 1 1 Interface Explained 21 6 Firmware Download 23 6 1 Firmw...

Страница 7: ...ble Index Table 1 List of Accessories 9 Table 2 Detailed EVB Interfaces 12 Table 3 J501 Pin Detailed Description 13 Table 4 J302 Pin Detailed Description 14 Table 5 QGNSS Interface Explained 21 Table 6 Related Document 28 Table 7 Terms and Abbreviations 28 ...

Страница 8: ...gure 8 USB Ports 19 Figure 9 QGNSS Setting 20 Figure 10 QGNSS Interface Connected LG69T AA 20 Figure 11 Firmware Download Step 1 23 Figure 12 Firmware Download Step 2 24 Figure 13 Firmware Download Step 3 24 Figure 14 Firmware Download Step 4 24 Figure 15 Successful Firmware Download Step 5 25 Figure 16 Firmware Upgrade Step 1 25 Figure 17 Firmware Upgrade Step 2 26 Figure 18 Firmware Upgrade Step...

Страница 9: ...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 test the module by using the QGNSS tool Chapter 5 describes how to upgrade firmware of the module by using the GNSSFlashTool Chapter 6 is an appendix which summarizes the relevant documents terms and abbreviations appearing herein If yo...

Страница 10: ... download the software tools QCOM QGNSS GNSSFlashTool 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 EVB Micro USB cable Bolts and coupling nuts Figure 1 EVB Kit Accessories Table 1 List of Accessories Items Description Quantity EVB Evaluation board Size 100 mm 17...

Страница 11: ...he instruction sheet inside the EVB Kit Figure 2 EVB and Accessories Assembly Place the active GNSS antenna where it can detect the satellites with a clear view of the sky 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...

Страница 12: ...XD and 1PPS indication LEDs D310 GEO_F indication LED D109 5 V and 3 3 V indication LEDs S101 Power switch S301 WAKE_UP button S201 RESET_GNSS button S202 BOOT_GNSS button U301 GNSS module J302 Test points U103 LDO J201 USB_UART connector EVB version J501 OBD LG69T AA supports Figure 3 EVB Side View 3 2 Board User Interfaces The EVB interfaces are detailed in the table below ...

Страница 13: ...eiDou B1I and B2a SBAS L1 Signal indication D309 Indication LEDs 1PPS Red LED Flash Successful position fix The frequency is 1 Hz Extinct No position fix TXD Green LED Flash The module is turned on successfully NMEA RTCM messages output from UART TXD pin Extinct Failed to turn on the module D109 Indication LEDs 3 3 V Red LED EVB 3 3 V power indicator 5 V Green LED EVB 5 V power indicator D310 Indi...

Страница 14: ...cription J302 Pin Assignment SPI_MOSI SPI_SCK TXD1 RXD1 1PPS SPI_CS SPI_MISO TXD2 RXD2 GND 1 The LG69T AA module supports the OBD interface and LG69T AD module does not support OBD 1 J302 Test Points Pins are detailed in Table 4 below Pin Name I O Description NC NC NC NC NC WHEELTICK DI Odometer wheel tick input FWD DI Forward Backward signal input Low level Forward GND Ground ...

Страница 15: ...ble 4 J302 Pin Detailed Description Pin Name I O Description SPI_MOSI I O NC SPI_SCK I O NC TXD1 DO Transmits data 1 RXD1 DI Receives data 1 1PPS DO 1 pulse per second SPI_CS I O NC SPI_MISO I O NC TXD2 DO Transmits data 2 RXD2 DI Receives data 2 GND Ground ...

Страница 16: ...he vehicle during use No movement or shaking should occur to ensure the performance of the module Here is the IMU axis direction inside the module for your reference Figure 4 IMU Axis Direction 4 1 Installation Diagram The LG69T AA EVB is flexible to install regardless of angle and direction The module can automatically identify the installation angle deviation and compensate it through internal a...

Страница 17: ...ation process is based on the premise that the user has fixed the EVB No displacement or rotation of the EVB should occur after calibration as described in the following chapters The calibration process needs to be repeated only in the following cases The EVB has been moved and reinstalled During a DR cold start and when the NVM is blank or invalid Please strictly follow the steps in Chapter 4 2 1...

Страница 18: ...e value Then drive in a straight road speed 30 km h for at least 5 minutes Step 2 Drive in areas rich of curves speed 30 km h This process is required to calibrate the yaw rate gain It is important to require tight turns with narrow radius of curvature Typical scenes that allow this step to be performed properly are roundabouts tight turns and road curves with direction changed in 90 degress or mo...

Страница 19: ...on Result Monitoring The calibration result will be reported in an NMEA message A approach to check the calibration status message is shown by the following figure For more information see document 4 Step 1 Enter a software command in the Text Console to filter out the NMEA message as shown in the figure below Step 2 When the fifth parameter becomes 1 it means that all calibrations have been compl...

Страница 20: ...s Step 2 Set the power switch to ON position in order to power on the EVB Step 3 Start the QGNSS and click Setting and Serial Port Configuration the LG69T AA module supports 460800 bps and LG69T AD module supports 115200 bps by default as shown in the figure below Figure 7 QGNSS Setting Step 4 View the USB port numbers in the Device Manager select Enhance COM Port port as shown in Figure 7 below F...

Страница 21: ...LG69T AA AD _EVB_User_Guide 20 29 Figure 9 QGNSS Setting Step 4 Click the Connect or disconnect button After connecting the modules the interfaces as shown in the figures below Figure 10 QGNSS Interface Connected LG69T AA ...

Страница 22: ...e position of the satellites in use The left column icon shows the satellites in use and their number BDS BeiDou 4 GLO GLONASS 0 GPS 11 GAL Galileo 0 QZSS 0 NavIC SBAS 0 The grid map on the right shows the position of the satellites in use 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 nav...

Страница 23: ...ltitude MSL unit m Altitude EPH unit m Receiver speed unit km h Horizontal dilution of precision Position dilution of precision Quality Indicator 2D 3D UTC date and time Total number of seconds unit second Age of differential GPS data The last time of TTFF unit second Total Times Fixed Points RTK Float RTK Fixed ...

Страница 24: ...ent 3 Request the QCOM tool from our website Download Zone or request them from Quectel Technical Supports 6 1 Firmware Download Before you start the module firmware download process First Connect the EVB to a PC with a Micro USB cable Second Set the power switch to OFF position before power on the EVB Firmware download in boot download working mode steps Step 1 Open GNSSFlashTool or click Tools s...

Страница 25: ...e select click Open File e g LG69TAANR01A01V01_4WDR_ST_BETA0810A_BOOT bin for LG69T AA module as shown in the figures below Figure 13 Firmware Download Step 3 Step 4 Confirm the Port and Baud Rate as the enhanced COM Port Click Start button Press and hold the BOOT_GNSS button while flipping the power switch to ON position and then release the BOOT_GNSS button to enter boot download mode Figure 14 ...

Страница 26: ...e below Figure 15 Successful Firmware Download Step 5 6 2 Firmware Upgrade Before you start the firmware upgrade process First Connect the EVB to a PC with a Micro USB Cable Second Set the power switch to OFF position before power on the EVB Firmware upgrade in normal working mode steps Step 1 Open GNSSFlashTool or click Tools select Firmware Download in QGNSS tool as shown in the figure below Fig...

Страница 27: ...igure below Figure 17 Firmware Upgrade Step 2 Step 3 For Firmware select click Open File e g LG69TAANR01A01V01_4WDR_ST_BETA0810A_UPG bin as shown in the figure below Figure 18 Firmware Upgrade Step 3 Step 4 Confirm the Port and Baud Rate as the enhanced COM Port Click Start button Then flip the power switch to ON position Figure 19 Firmware Upgrade Step 4 ...

Страница 28: ...r_Guide 27 29 Step 5 When the firmware upgrade is successful the progress bar will indicate 100 and there will be a green rectangle on the screen GNSSFlashTool appears as shown in the figure below Figure 20 Successful Firmware Upgrade Step 5 ...

Страница 29: ...9T AA AD AI AJ AK _GNSS_Protocol_Specification Abbreviation Description BeiDou BeiDou Navigation Satellite System CEP Circular Error Probable CNR Carrier to Noise Ratio COM Port Communication Port CS Chip Select DI Digital Input DO Digital Output DR Dead Reckoning ESD Electrostatic Discharge EVB Evaluation Board Galileo Galileo Satellite Navigation System EU GLONASS Global Navigation Satellite Sys...

Страница 30: ...cs Association PC Personal Computer PCB Printed Circuit Board 1PPS One Pulse Per Second PRN Pseudorandom Noise QZSS Quasi Zenith Satellite System RTCM Radio Technical Commission for Maritime services RTK Real Time Kinematic RXD Receive Data Pin SBAS Satellite Based Augmentation System SCK SPI Serial Clock CS SPI Chip Select TTFF Time to First Fix TXD Transmit Data Pin USB Universal Serial Bus UTC ...

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