L76 EVB User Guide
Contents
1. I L n r 8 m T i Sus s Figure 11 EVB and Accessory Equipments Confidential Released 17 25 176 EVB User Guide GNSS Module L76 EVB User Guide Jm Wireless Module Expert 5 Install Device Driver Please note that you need to install the driver of Micro USB when use Micro USB for data communication The driver has been stored in our FTP server The driver of CP210x also can be download from internet The download path of our FTP server is as below Overseas customer d FTP OC Overseas_Technical Overseas Module Official Documents GNSS Module Common 04 Tool GNSS Micro USB Driver CP210x Domestic customer d FTP CC Domestic_Technical Domestic_ Module Official Documents GNSS Module Common 04 Tool GNSS EVB Micro USB Driver CP210x 176 EVB User Guide Confidential Released 18 25 GNSS Module L76 EVB User Guide Wireless Module Expert amp Starting PowerGPS The PowerGPS version is V2 2 0 The PowerGPS tool can help user to view the status of GPS amp GLONASS receiver conveniently When the tool is opened the following window will be displayed aed HT IF pria ran beams ined ted mars Com port setting Figure 12 PowerGPS Tool After EVB accessories are assembled turn on the module and start up the PowerGPS Select a correct COM port and baud rate L76 module sup2. K AIR 8 Interface Application 2 9 u u u 10 31s 5 7 amp 10 3 2 UART 11 3 3 Antenna amp 9 E BA 12 3 4 Switches and Buttons MA 13 3 5 Operating Status 270 14 3 6 Tesi4 Sion 95 IT _ T 15 4 EVB and 17 5 Install Device Driver eee nennt 18 6 Starting U U U U u u u u uu u u 19 7 Appendix A Reference 25 L76_EVB_User Guide Confidential Released 3 25 GNSS Module L76 EVB User Guide Jm Wireless Module Expert Table Index TABLE 1
3. UU 17 FIGURE 12 POWERGPS TOOQCL 19 FIGURE 13 Lue Ness 21 FIGURE 14 STATIC TTFF TESTING 9 W BB 0 NEB ee eee 22 FIGURE 15 STATIC TTFF TESTING CONFIGURATION OPTIONS 7 23 FIGURE 16 STATIGaLIFF TESTING CONFIGURATION a S 24 L76_EVB_User Guide Confidential Released 5 25 GNSS Module L76 EVB User Guide Jm 4 Wireless Module Expert Introduction This document defines and specifies the usage of 176 EVB Evaluation Board You can get useful information about L76 EVB and GNSS demo tool from this document Confidential Released 6 25 176 EVB User Guide Jm 24 4 Wireless Expert 2 2 1 EVB Top and Bottom View sa k Taia E n y Figure 1 EVB Top View L76 EVB User Guide Confidential Released Introduction to EVB Kit GNSS Module L76 EVB User Guide 7125 GNSS Module Wireless Module Expert L76 EVB User Guide Jm SN E123320D1000010 EMI MA Figure 2 EVB Bottom View UART port Serial port alternation switch RESET button FORCE ON button POWER switch Micro USB port Indication LEDs Antenna interface L76 Module STANDBY swit
4. PINS OF UART PORT 11 TABLE 2 SWITCHES AND BUTTONS 1 uuu uu 13 TABLE 3 OPERATING STATUS LEDS uter estan MEUS 14 NI cuj 15 TABLE 5 EXPLANATIONS OF POWERGPS WINDOWWN a 20 TABLE G REFERENC E cC XXX 25 TABLE 7 ABBREVIATIONS 25 L76_EVB_User Guide Confidential Released 4125 Jm GNSS Module kas Wireless Module Expert L76 EVB User Guide Figure Index FIGURE T EVB TOF VIEW 7 FOURE BOTTONE V ea 8 FIGUISE S EVBAUUDEOSORIES u 9 FIGURE 4 MICRO USB INTERFACE 10 11 FIGURE 6 ANTENNA IN TERERBQE 12 FIGURE 12 FIGURE 8 SWIICHESANDBUTIONS u a edens eee etree eer ee 13 FIGURE 9 OPERATING STATUS LEDS W 14 FIGURE 10 TEST POINTS J106 eee 15 FIGURE 11 EVB AND ACCESSORY EQUIPMENTS We E 97 W
5. DEN WITHOUT PERMISSION 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 2013 All rights reserved 176 EVB User Guide Confidential Released 1 25 Jm ANa Wireless Module Expert About the document History Revision Date Author 1 0 2013 02 25 Dishon ZHOU 2013 03 26 Dishon ZHOU 1 1 L76_EVB_User Guide GNSS Module L76 EVB User Guide Description Initial Optimized the contents of Chapter 3 Confidential Released 2 25 GNSS Module Jm Wireless Module Expert L76 EVB User Guide Contents About the 2 Contents RORIS 3 IRQ8X 4 FIgure MOCY MEMINI UII MN NI UMEN 5 1 Introduction ssssssssssnnnanananananananananananananaaannanaa 6 2 Introduction to EVB enne nennen unen 7 2 1 EVB Top and Bottom 7 A7
6. Hime before testin 20 50 Dynamic C Dynamic Waiting time before next TTFF test Waiting Mad w wait after TTFF Fixed interval C Specific subframe time Hot Restart Waiting Time 5 TEN TTFF Time out Sec 100 Restart Waiting Time Sec Random Base 0 Random 23 Fixed Delay Fixed Figure 16 Static TTFF Testing Configuration The above operation is completed Click on the Run button to start the test and it can be stopped by clicking Stop button After finishing the testing you can see the testing result charts Of course the result also will be stored in the tool installation path and you can view the corresponding log L76_EVB_User Guide Confidential Released 24 25 Jm QUECTE Wireless Module Expert 7 Appendix Reference Table 6 Reference SN Document name Remark 1 L 6 Hardware Design L76 Hardware Design 2 76 Protocol Specification 76 Protocol Specification 3 L76 Reference Design L76 Reference Design Table 7 Abbreviations Abbreviation Description CNR Carrier to Noise Ratio GPS Global Positioning System GLONASS Global Navigation Satellite System The Russian GNSS GNSS Global Navigation Satellite System LED Light Emitting Diode PPS Pulse Per Second PRN Pseudorandom Noise SPS Standard Positioning Service SV Satellite Vehicle UART Universal Asynchronous Receiver amp Transmitter UTC Universal Time Coordinated WGS84 Wor
7. Interface OWCOUNS d EW 9 1 Figure 6 Antenna Interface 12 25 Figure 7 LNA Layout Confidential Released L76 EVB User Guide GNSS Module L76 EVB User Guide Jm 24 4 Wireless Expert For choice of external antenna both of active antenna and passive antenna can be selected Please note the LNA is installed in the EVB by default so you have to move C109 to R112 and R118 to R105 when you want to remove the LNA for test 3 4 Switches and Buttons r ae L ss EMT iic O O H sige a et ji m 1 al L a h if 1 01 s 1 S Figure 8 Switches and Buttons Table 2 Switches and Buttons Part Name I O Description S1 POWER Control power supply via Micro USB Serial QUECTEL EVB supplies two communicative 52 ways Micro USB and UART which are controlled alternation switch by switch The module will enter into standby mode when 53 STANDBY switching from OFF to ON and exit from standby L76_EVB_User Guide Confidential Released 13 25 GNSS Module L76 EVB User Guide Wireless Module Expert mode in the opposite operation Press and release the button the module will be waked up from backup mode Press and release this button then the module will reset K1 FORCE_ON 2 3 5 Operating Status LEDs Figure 9 Opera
8. QUEC i 7n Module Expert 176 EVB User Guide GNSS Module Series Rev 176 EVB User Guide V1 1 Date 2013 04 02 e www quectel com Jm GNSS Module kas Wireless Module Expert L76 EVB User Guide Our aim is to provide customers with timely and comprehensive service For any assistance please contact our company headquarter Quectel Wireless Solutions Co Ltd Room 501 Building 13 No 99 Tianzhou Road Shanghai China 200233 Tel 86 21 5108 6236 Mail info quectel com Or our local office for more information please visit http www quectel com quectel_sales_office html For technical support to report documentation errors please visit http www quectel com tecsupport aspx GENERAL NOTES QUECTEL OFFERS THIS 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 USE OF OR RELIANCE UPON THE INFORMATION ALL INFORMATION SUPPLIED HEREIN ARE SUBJECT TO CHANGE WITHOUT PRIOR NOTICE COPYRIGHT THIS INFORMATION CONTAINED HERE IS PROPRIETARY TECHNICAL INFORMATION OF QUECTEL CO LTD TRANSMITTABLE REPRODUCTION DISSEMINATION AND EDITING OF THIS DOCUMENT AS WELL AS UTILIZATION OF THIS CONTENTS ARE FORBID
9. ch Test points ASF 2 2 EVB Accessories L76_EVB_User Guide Confidential Released 8 25 GNSS Module L76 EVB User Guide eu e Wireless EVB Accessories Figure 3 A USB cable GNSS active antenna 3 3V 9 25 Confidential Released 176 EVB User Guide GNSS Module L76 EVB User Guide GU Wireless Module Expert Interface Application 3 3 1 USB Interface Figure 4 Micro USB Interface The main power is supplied via Micro USB interface We provide two ways for data communication Micro USB and UART interface which are controlled by alternation switch S2 Both of RS232 and Micro USB cable are necessary if you want to use UART to output NEMA So the easy way is to use Micro USB cable which both supplies the power and outputs NEMA You can makes alternation between UART port and Micro USB interfaces via switch S2 NOTE If you want to use PowerGPS Tool UART interface is recommended for data communication L76_EVB_User Guide Confidential Released 10 25 QOUWECCE GNSS Module Wireless Module Expert L76 EVB User Guide 3 2 UART Interface Figure 5 UART Interface Table 1 Pins of UART port Pin Signal I O Description 2 RXD 9 TXD O Transmit data 5 GND GND L76 EVB User Guide Confidential Released 11 25 GNSS Module L76 EVB User Guide UEC Wireless Module Expert 3 3 Antenna
10. gure 14 Static TTFF Testing Click Set reference point choose Reference location After start positioning click Use Mean Position then click OK As shown in the screenshots below L76 EVB User Guide Confidential Released 22125 GNSS Module L76 EVB User Guide n Ju QUECT Wireless Module Expert General System Data Log Maintenance Replay GPS Setting MTKChp Device Reference Location Edit Location List Lat 31 845451984 D Lat 31 D 50 72712 uo ew e Lon 117 19546729 p Lon 117 D 11 72804 M WE cw 53 381871720 m Hgt 53 38 Figure 15 Static Testing Configuration Options Click Config set TTFF Time out then click OK shown as below In generally if you choose hot start TTFF Time out sec sets 10s If you choose warm start the T TFF Time out sec sets 50s If you choose cold start the TTFF Time out sec sets 1005 TTFF Time out sec can help you judge TTFF and save time L76 EVB User Guide Confidential Released 23125 GNSS Module L76 EVB User Guide 4 Wireless Module Expert TTFF Configuration bd General Misc When to Count TTFF TTFF Criteria C 2D 10km After Restart Message 20 600m After Restart Command 100m 2D 100m Auto re send restart CMD C 3D 100m ue 3D 100m Waiting
11. ld Geodetic System 1984 176 EVB User Guide Confidential Released GNSS Module L76 EVB User Guide 25 25
12. osition Dilution of Precision Vertical Dilution of Precision Speed of receiver Confidential Released 20 25 GNSS Module L76 EVB User Guide n Ju QUELLE Wireless Module Expert PMTK Command You can send PMTK command by PowerGPS The format of PMTK command includes only characters between and for example PMTK869 0 MIK GP5 TX RX NMEA NMEA text to be sent only characters between and shall be included 5 1 Figure 13 Automatic TTFF Testing This tool allows you to measure the TTFF Time to First Fix under different testing conditions You can choose to test the TTFF from full start cold start warm start and hot start and the number of tests can be chosen from 1 10 20 100 1000 and 10000 Click on the Run button to start the test and it can be stopped by clicking on the Stop button The configuration is as below Start menu and click Static TTFF Testing then Static TTFF Testing as shown below 176 EVB User Guide Confidential Released 21 25 GNSS Module L76 EVB User Guide Jm QUECTEeE Wireless Module Expert Automatic TTFF Testing WARM COLD LU I The number 000 00 of tests ence Point T Set Refer Wam Restart TTF FF 4 10 Sie e 845265 E THO Wait 5 seconds Remain sec 4 Fi
13. ports 9600bps by default then click the button Create Connection cow Pert 26 Baud 9600 From the PowerGPS window user can view CNR message time position speed precision and so on Explanations are listed in Table 5 Confidential Released L76 EVB User Guide Wireless Module Expert Jm GNSS Module L76 EVB User Guide Table 5 Explanations of PowerGPS Window Icon 10 12 15 25 26 29 42 53 UTC Time Latitude Longitude Fis Sat used Altitude UTC Date Made Sat Used Speed rs 08 54 07 000 31 34560157 M 117 19548500 E Valid DGPS 17 0 6 50 16 200 M 2013 01 11 30 18 25 14 21 15 31 1 680 1 410 0 005 L76_EVB_User Guide 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 Dark blue means this satellite is in tracking Light blue means this satellite is not in tracking The CNR of PRN 25 is 31dB Hz Light blue column means the navigation data of this satellite is in use of 70 is 32dB Hz White column means the navigation data of this satellite is not in use The range of GLONASS SVID is 65 96 UTC time Latitude degree longitude degree Positing fix Using the number of satellites Horizontal Dilution of Precision Altitude based on WGS84 Datum UTC date Fix type No Fix 3D or 2D SPS Using satellite P
14. ting Status LEDs Table 3 Operating status LEDs Part Name I O Description Flash turn on successfully Micro USB or UART1 L1 TXD1 O port can output messages Extinct fail to turn on the module Flash fix successfully the frequency is 1Hz 12 1PPS O Extinct fix L76_EVB_User Guide Confidential Released 14 25 QUECT Wireless Module Expert 3 6 Test Points Table 4 Pins of J106 Pin Signal 32K DRIN AADET_N IPRS STANDBY 176 EVB User Guide GNSS Module L76 EVB User Guide N JRID 206 F ANRE TIPPS STANDBY Figure 10 Test Points J106 I O Description Reserved Active antenna open circuit detection O 1 pulse per second Enter or exit standby mode Confidential Released 15 25 Wireless Module Expert 5 10 GND 6 FORCE_ON 7 8 TXD1 9 RXD1 GNSS Module L76 EVB User Guide Ground up from backup mode Keep this pin open or pulled low before entering into backup Logic high will force module to be waked mode If unused keep this pin open System reset Transmit data Receive data Confidential Released L76 EVB User Guide 16 25 GNSS Module L76 EVB User Guide n M L Na Wireless Module Expert The EVB and its accessories are equipped as shown in Figure 11 BAF ee zr wa 1 a L m a Gl z h
Download Pdf Manuals
Related Search