Quectel LC86L EVB User Manual Download Page 26

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GNSS Module Series

LC86L EVB User Guide

LC86L_EVB_User_Guide 25 /22

Figure 19: Set TTFF Time-out (Sec)

enerally, if hot start is selected, “

TTFF Time-out (sec)

” is recommended to be set as 10 s. If warm start

is selected, it can be set as 50 s. If cold start is selected, it can be set as 100

s. “

TTFF Time

–out (sec)

”

can help judge TTFF and save time.

Step 4:

After all

above operations, click the “

Run”

button to start the test and it can be stopped by

clicking “

Stop

” button.

Summary of Contents for LC86L EVB

Page 1: ...LC86L EVB User Guide GNSS Module Series Rev LC86L_EVB_User_Guide_V1 0 Date 2020 04 10 Status Preliminary www quectel com ...

Page 2: ...E 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 USE OF OR RELIANCE UPON THE INFORMATION ALL INFORMATION SUPPLIED HEREIN IS SUBJECT TO CHANG...

Page 3: ...GNSS Module Series LC86L EVB User Guide LC86L_EVB_User_Guide 2 22 About the document History Revision Date Author Description 1 0 2020 04 10 Andy ZHAO Initial ...

Page 4: ...essories Assembly 10 3 Interface Applications 11 3 1 Micro USB Interface 11 3 2 Antenna Interface 12 3 3 Switches and Buttons 12 3 4 Operation Status Indication LEDs 14 3 5 Test Points 15 4 EVB Operation Procedures 16 4 1 Communication via Micro USB Interface 16 4 2 Firmware Download 17 5 PowerGPS instructions 18 5 1 COM Port and Baud Rate Setting 18 5 1 1 PowerGPS interface description 19 5 2 PMT...

Page 5: ...86L EVB User Guide LC86L_EVB_User_Guide 4 22 Table Index TABLE 1 INTERFACES OF LC86L EVB 8 TABLE 2 LIST OF ACCESSORIES 9 TABLE 3 SWITCHES AND BUTTONS 13 TABLE 4 OPERATION STATUS INDICATION LEDS 14 TABLE 5 PIN DESCRIPTION 15 ...

Page 6: ...TION STATUS INDICATION LEDS 14 FIGURE 8 TEST POINTS J104 15 FIGURE 9 USB PORTS 16 FIGURE 10 COM PORT SETTING OF QCOM 16 FIGURE 11 FLASH TOOL CONFIGURATION AND FIRMWARE UPGRADE 17 FIGURE 12 POWERGPS MAIN INTERFACE NOT CONNECTED 18 FIGURE 13 POWERGPS MAIN INTERFACE CONNECTED 19 FIGURE 14 PMTK COMMAND SENDING VIA POWERGPS 21 FIGURE 15 STATIC TTFF TESTING VIA POWERGPS 22 FIGURE 16 CHOOSE REFERENCE LOC...

Page 7: ...s supplied with the product If not so Quectel assumes no liability for any failure to comply with these precautions Be assure the use of the product conforms to the national safety and environmental regulations and is allowed in the country and in the environment required Keep away from explosive and flammable materials The use of electronic products in extreme power supply conditions and location...

Page 8: ...GNSS Module Series LC86L EVB User Guide LC86L_EVB_User_Guide 7 22 2 General Overview 2 1 Top view of LC86L EVB The following figure illustrates the top view of LC86L EVB Figure 1 Top View of LC86L EVB ...

Page 9: ...1 Interfaces of LC86L EVB SN Designator Description A Y404 LC86L module B J403 Antenna connector C S101 Power switch D J103 Micro USB connector E S302 Force_on button F J301 Reset button G U201 USB and SD switch H D303 D304 D305 D306 D307 Indication LEDs I S401 Boot button ...

Page 10: ...f Accessories Items Description Quantity USB Cable USB cable 1 EVB Evaluation board 1 Antenna GNSS antenna active 1 USB Flash Drive USB flash drive including LC86L related documents tools drivers etc 1 Instruction Sheet A sheet of paper giving instructions for EVB connection details of EVB accessories etc 1 Others Bolts and coupling nuts 4 pairs ...

Page 11: ...dule Series LC86L EVB User Guide LC86L_EVB_User_Guide 10 22 2 3 EVB and Accessories Assembly The following figure shows the assembly of LC86L EVB and its accessories Figure 3 LC86L EVB and Accessories Assembly ...

Page 12: ...e Series LC86L EVB User Guide LC86L_EVB_User_Guide 11 22 3 Interface Applications 3 1 Micro USB Interface Micro USB connector is used for EVB power supply as well as data transmission Figure 4 Micro USB Connector ...

Page 13: ...EVB_User_Guide 12 22 3 2 Antenna Interface The antenna connector is used to connect an external passive or active GNSS antenna Figure 5 Antenna Connector 3 3 Switches and Buttons The following figure illustrates the switches and buttons of the EVB ...

Page 14: ...es and Buttons Part No Name I O Description D101 POWER PI Power switch S201 USB SD switch DI LC86L for data transmission via USB S301 RESET DI The module will be reset through pressing and then releasing the button S302 FORCE_ON DI In Backup mode press this button the module will be woken up S401 BOOT DI Unused ...

Page 15: ...escription D303 1PPS DO Light positioning success frequency 1Hz Dark no positioning D304 TXD DO Light data output Dark no data output D305 JAM_IND DO Jamming detection indicator LC86L not used D306 GEO_FORCE DO Geo fence boundary indicator LC86L not used D307 AADET_N DO Light active antenna is connected well Dark active antenna is not connected to EX_ANT or has poor contact with antenna feeding po...

Page 16: ...wing figure illustrates the test points of the EVB Figure 8 Test Points J104 Table 5 Pin Description Pin No Signal I O Description 1 RXD DI Receive data 2 TXD DO Send data 3 1PPS DO One pulse per second 4 RESET DO Module reset 5 GND Ground 6 3 0V PI 7 SCL I O 8 SDA I O 9 3DFIX DO 10 GND Ground ...

Page 17: ...h drive on PC to install the USB driver The USB port numbers can be viewed in Device Manager of the PC after the USB driver is installed as shown below Figure 9 USB Ports Step 3 Install and then use the tool QCOM provided by Quectel to realize the communication between LC86L module and the PC The following figure shows the COM Port Setting of QCOM select the correct COM Port USB Port shown in the ...

Page 18: ...N state to power on the EVB Step 3 Follow these steps to upgrade the firmware Click Settings Baud rate Auto Detect to select the baud rate Click Settings COM Port COM3 to select the communication port Select the download file Click the two red boxes shown in step c in the figure below to select the corresponding file path Reserve corresponds to the download management file and ROM corresponds to t...

Page 19: ...e Setting Step 1 After the EVB and its accessories are properly connected power on the EVB and start PowerGPS this article uses PowerGPS Trial 2 3 5 as an example and the following main interface is displayed Figure 12 PowerGPS main interface not connected Step 2 At the bottom of the interface select a correct COM port and baud rate LC86L module supports 9600 bps by default click the button Create...

Page 20: ...tion such as CNR message time position speed and precision can be viewed Explanations are listed in the table below Table 6 Explanations of PowerGPS Interface Icon Explanation SV with PRN 65 If the position of SV is near to the centre of the Sky View the elevation angle of SV is close to 90 Blue means this satellite is being tracked Light blue means this satellite is not being tracked ...

Page 21: ...s it is a BeiDou satellite and S means it is a SBAS Light blue column means the navigation data of this satellite is in use The CNR of PRN 3 is 42 dB Hz White column means the navigation data of this satellite is not in use UTC time Latitude degree Longitude degree Position fix The number of satellites being used Horizontal dilution of precision Altitude based on WGS84 datum UTC date Fixing mode N...

Page 22: ...itions 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 Click the Run button to start the test and it can be stopped by clicking the Stop button The following are the detailed configuration steps during TTFF testing Step 1 Start MTK menu and then click Static TTFF Testing to enter Auto...

Page 23: ...EVB User Guide LC86L_EVB_User_Guide 22 22 Restart Type The Number of Tests Figure 15 Static TTFF Testing via PowerGPS Step 2 Click Set Reference Point and the Options window will be shown as below then choose Reference Location ...

Page 24: ...le Series LC86L EVB User Guide LC86L_EVB_User_Guide 23 22 Figure 16 Choose Reference Location After that the interface will be shown as below Click Use Mean Position and then OK Figure 17 Click Use Mean Position ...

Page 25: ...LC86L EVB User Guide LC86L_EVB_User_Guide 24 22 Step 3 Return to the interface shown as below and click Config to get to TTFF Configuration interface Then set TTFF Time out sec and finally click OK Figure 18 Click Config ...

Page 26: ...selected TTFF Time out sec is recommended to be set as 10 s If warm start is selected it can be set as 50 s If cold start is selected it can be set as 100 s TTFF Time out sec can help judge TTFF and save time Step 4 After all above operations click the Run button to start the test and it can be stopped by clicking Stop button ...

Page 27: ..._EVB_User_Guide 26 22 Figure 19 Click Run Stop Button Step 5 After finishing the testing users can see the testing result charts The test result will be stored in the directory where the tool is installed for convenient view of the log at any time ...

Page 28: ...ocol Specification 3 Quectel_LC86L_Reference Design LC86L Reference Design 4 Quectel_QCOM_User_Guide QCOM User Guide Abbreviation Description CNR Carrier to Noise Ratio DI Digital input DO Digital output GPS Global Positioning System GLONASS Globalnaya Navigazionnaya Sputnikovaya Sistema or Global Navigation Satellite System Russia s version of GPS GNSS Global Navigation Satellite System HDOP Hori...

Page 29: ...ries LC86L EVB User Guide LC86L_EVB_User_Guide 28 22 PO Power output PPS Pulse Per Second PRN Pseudorandom Noise SPS Standard Positioning Service SV Satellite Vehicle UART Universal Asynchronous Receiver Transmitter ...

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