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GPS Module Series

L80-R EVB User Guide

L80-R_EVB_User_Guide Confidential / Released 11 / 19

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

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Summary of Contents for L80-R

Page 1: ...L80 R EVB User Guide GPS Module Series Rev L80 R_EVB_User_Guide_V1 0 Date 2015 09 11 www quectel com ...

Page 2: ...OVIDED 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 CHANGE WITHOUT PRIOR ...

Page 3: ...GPS Module Series L80 R EVB User Guide L80 R_EVB_User_Guide Confidential Released 2 19 About the Document History Revision Date Author Description 1 0 2015 09 11 Connie ZHOU Initial Quectel Confidential ...

Page 4: ...ure Index 5 1 Introduction 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 Switches and Buttons 12 3 4 Test Point 13 4 EVB and Accessories 14 5 Install Device Driver 15 6 Starting PowerGPS 16 7 Appendix A Reference 19 Quectel Confidential ...

Page 5: ... 4 19 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 12 TABLE 5 THE DESCRIPTION OF TEST POINTS 13 TABLE 6 EXPLANATIONS OF POWERGPS WINDOW 17 TABLE 7 REFERENCE 19 TABLE 8 ABBREVIATIONS 19 Quectel Confidential ...

Page 6: ...IEW 7 FIGURE 2 EVB BOTTOM VIEW 8 FIGURE 3 EVB ACCESSORIES 9 FIGURE 4 MICRO USB INTERFACE 10 FIGURE 5 UART INTERFACE 11 FIGURE 6 SWITCHES AND BUTTONS 12 FIGURE 7 TEST POINTS 13 FIGURE 8 EVB AND ACCESSORY EQUIPMENTS 14 FIGURE 9 POWERGPS TOOL 16 FIGURE 10 COM PORT AND BAUD 16 FIGURE 11 MTK COMMAND 18 Quectel Confidential ...

Page 7: ...80 R_EVB_User_Guide Confidential Released 6 19 1 Introduction This document defines and specifies the usage of L80 R EVB Evaluation Board You can get useful information about L80 R EVB and GPS demo tool from this document Quectel Confidential ...

Page 8: ...GPS Module Series L80 R EVB User Guide L80 R_EVB_User_Guide Confidential Released 7 19 2 Introduction to EVB Kit 2 1 EVB Top and Bottom View Figure 1 EVB Top View Quectel Confidential ...

Page 9: ...uide Confidential Released 8 19 Figure 2 EVB Bottom View Table 1 EVB Bottom View Index Description A UART port B Serial port alternation switch C RESET button D Micro USB port E POWER switch F PATCH antenna G L80 R module H Test points Quectel Confidential ...

Page 10: ...S Module Series L80 R EVB User Guide L80 R_EVB_User_Guide Confidential Released 9 19 2 2 EVB Accessories Figure 3 EVB Accessories Table 2 EVB Accessories Index Description A USB cable Quectel Confidential ...

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

Page 12: ...User Guide L80 R_EVB_User_Guide Confidential Released 11 19 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: ... and Buttons Table 4 Switches and Buttons 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 K2 RESET I Press and release this button then the module will reset Quectel Confidential ...

Page 14: ...Confidential Released 13 19 3 4 Test Point Figure 7 Test Points Table 5 The Description 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 Quectel Confidential ...

Page 15: ...ies L80 R EVB User Guide L80 R_EVB_User_Guide Confidential Released 14 19 4 EVB and Accessories The EVB and its accessories are equipped as shown in Figure 8 Figure 8 EVB and Accessory Equipments Quectel Confidential ...

Page 16: ...ed in 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_M...

Page 17: ...w the status of GPS receiver conveniently When the tool is opened the following window will be displayed Figure 9 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 R module supports 9600bps by default then click the button Create Connection Figure 10 COM Port and Baud Quectel Confidential ...

Page 18: ...lue means this satellite is in tracking Light blue means this satellite is not in tracking The CNR of PRN 27 is 48dB Hz Light blue column 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...

Page 19: ...B User Guide L80 R_EVB_User_Guide Confidential Released 18 19 You can send PMTK command by PowerGPS The format of PMTK command only includes characters between and for example PMTK869 0 Figure 11 MTK Command Quectel Confidential ...

Page 20: ...Specification L80 R Protocol Specification 3 Quectel_L80 R_Reference Design L80 R 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 Geodeti...

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