Quectel L80 EVB, User Manual

Page 1: ...L80 EVB User Guide GPS Module Series Rev L80_EVB_User_Guide_V1 0 Date 2013 07 25 www quectel com ...

Page 2: ... 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 TH...

Page 3: ...GPS Module L80 EVB User Guide L80_EVB_User_Guide Confidential Released 2 20 About the document History Revision Date Author Description 1 0 2013 07 25 Ada LI Initial Quectel Confidential ...

Page 4: ...oduction 6 2 Introduction to EVB Kit 7 2 1 EVB Top and Bottom View 7 2 2 EVB Accessories 9 3 Interface Application 10 3 1 USB Interface 10 3 2 UART Interface 11 3 3 Antenna Interface 12 3 4 Switches and Buttons 13 3 5 Test Point 14 4 EVB and Accessories 15 5 Install Device Driver 16 6 Starting PowerGPS 17 7 Appendix A Reference 20 Quectel Confidential ...

Page 5: ... Table Index TABLE 1 EVB BOTTOM VIEW 8 TABLE 2 EVB ACCESSORIES 9 TABLE 3 PINS OF UART PORT 11 TABLE 4 SWITCHES AND BUTTONS 13 TABLE 5 THE DESCRIPTION OF TEST POINTS 14 TABLE 6 EXPLANATIONS OF POWERGPS WINDOW 18 TABLE 7 REFERENCE 20 TABLE 8 ABBREVIATIONS 20 Quectel Confidential ...

Page 6: ...GURE 2 EVB BOTTOM VIEW 8 FIGURE 3 EVB ACCESSORIES 9 FIGURE 4 MICRO USB INTERFACE 10 FIGURE 5 UART INTERFACE 11 FIGURE 6 ANTENNA INTERFACE 12 FIGURE 7 SWITCHES AND BUTTONS 13 FIGURE 8 TEST POINTS 14 FIGURE 9 EVB AND ACCESSORY EQUIPMENTS 15 FIGURE 10 POWERGPS TOOL 17 FIGURE 11 COM PORT AND BAUD 17 Quectel Confidential ...

Page 7: ..._EVB_User_Guide Confidential Released 6 20 1 Introduction This document defines and specifies the usage of L80 EVB Evaluation Board You can get useful information about L80 EVB and GPS demo tool from this document Quectel Confidential ...

Page 8: ...GPS Module L80 EVB User Guide L80_EVB_User_Guide Confidential Released 7 20 2 Introduction to EVB Kit 2 1 EVB Top and Bottom View Figure 1 EVB Top View Quectel Confidential ...

Page 9: ...l Released 8 20 Figure 2 EVB Bottom View Table 1 EVB Bottom View Index Description A UART port B Serial port alternation switch C RESET button D FORCE_ON E Micro USB port F POWER switch G PATCH Antenna H L80 Module I Active Antenna interface Quectel Confidential ...

Page 10: ...Module L80 EVB User Guide L80_EVB_User_Guide Confidential Released 9 20 J Test points 2 2 EVB Accessories Figure 3 EVB Accessories Table 2 EVB Accessories Index Description A USB cable Quectel Confidential ...

Page 11: ...des two ways for data communication Micro USB and UART interface which are controlled by serial port alternation switch S401 Both of RS232 and Micro USB cable are necessary if you want to use UART in order to output NEMA So the easy way is that use Micro USB cable which both provides the power and output NEMA You can make alternation between UART port and Micro USB interface via switch S401 Quecte...

Page 12: ...r Guide L80_EVB_User_Guide Confidential Released 11 20 3 2 UART Interface Figure 5 UART Interface Table 3 Pins of UART Port Pin Signal I O Description 2 RXD I Receive data 3 TXD O Transmit data 5 GND GND Quectel Confidential ...

Page 13: ...GPS Module L80 EVB User Guide L80_EVB_User_Guide Confidential Released 12 20 3 3 Antenna Interface Figure 6 Antenna Interface Quectel Confidential ...

Page 14: ...Part Name I O Description S1 Serial port alternation switch I QUECTEL EVB supplies two communicative ways Micro USB and UART which are controlled by switch S2 POWER I Control power supply via Micro USB K1 FORCE_ON Logic high will force module to be waked up from backup mode K2 RESET I Press and release this button then the module will reset Quectel Confidential ...

Page 15: ...of Test Points Pin Signal I O Description 1 TXD1 O Transmit data 2 RXD1 I Receive data 3 RESET I System reset 4 6 GND Ground 5 1PPS O 1 pulse per second 7 TIMER O Logic high will force module to be waked up from backup mode Keep this pin open or pulled low before entering into backup mode If unused keep this pin open Quectel Confidential ...

Page 16: ...nd Accessories The EVB and its accessories are equipped as shown in Figure 9 Figure 9 EVB and Accessory Equipments The GPS active antenna is not included in L80EVB KIT It can be purchased separately by Quectel Sales Team if it is necessary for your application NOTE Quectel Confidential ...

Page 17: ...our FTP server The driver of CP210x also can be downloaded from internet The download path of our FTP server is shown as below Overseas customer d FTP OC Overseas_Technical Overseas_Module Official Documents GNSS Module Common 04 Tool Kit GNSS_EVB_Micro USB_Driver_CP210x Domestic customer d FTP CC Domestic_Technical Domestic_Module Official Documents GNSS Module Common 04 Tool Kit GNSS_EVB_Micro U...

Page 18: ...e following window will be displayed Figure 10 PowerGPS Tool After EVB accessories are assembled turn on the module and start up the PowerGPS Select a correct COM port and baud rate L80 module supports 9600bps by default then click the button Create Connection Figure 11 COM Port and Baud From the PowerGPS window user can view CNR message time position speed precision and so on Explanations are lis...

Page 19: ...olumn means the navigation data of this satellite is in use The CNR of PRN 50 is 40dB Hz White column means the navigation data of this satellite is not in use 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 Position Dilution of Precision Vertic...

Page 20: ...GPS Module L80 EVB User Guide L80_EVB_User_Guide Confidential Released 19 20 Figure 12 MTK Command Quectel Confidential ...

Page 21: ...ion L80 Protocol Specification 3 L80_Reference Design L80 Reference Design Table 8 Abbreviations Abbreviation Description CNR Carrier to Noise Ratio GPS Global Positioning System PPS Pulse Per Second PRN Pseudorandom Noise SPS Standard Positioning Service SV Satellite Vehicle UART Universal Asynchronous Receiver Transmitter UTC Universal Time Coordinated WGS84 World Geodetic System 1984 Quectel Co...