Ublox EVK-M8T-0-01 User Manual Download Page 1

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EVK-M8T

Evaluation Kit

User Guide



Abstract

This document describes the structure and use of the EVK-M8T evaluation kit and provides
information for evaluating and testing u-blox M8 positioning technology for timing and raw data
applications.

www.u-blox.com

UBX-14041540 - R05

Summary of Contents for EVK-M8T-0-01

Page 1: ...stract This document describes the structure and use of the EVK M8T evaluation kit and provides information for evaluating and testing u blox M8 positioning technology for timing and raw data applicat...

Page 2: ...available at www u blox com under Support Product Resources Conformity Declaration u blox or third parties may hold intellectual property rights in the products names logos and designs included in th...

Page 3: ...3 3 Serial port default configuration 6 4 Device description 7 4 1 Interface connection and measurement 7 4 2 Active antenna 7 4 3 Evaluation unit 7 4 3 1 Antenna connector 7 4 3 2 USB 7 4 3 3 UART 8...

Page 4: ...ects Evaluation Kit Description Suitable for EVK M8T u blox M8 Timing GNSS Evaluation Kit NEO M8T LEA M8T Table 1 List of products supported by EVK M8T evaluation kit 1 2 Kit includes Evaluation unit...

Page 5: ...nal limited power source only separated or Safety Extra Low Voltage SELV circuits are to be connected to the evaluation kit including interfaces and antennas For more information about SELV circuits s...

Page 6: ...Set slide switch to I2C SPI I2C compliant DDC Connect corresponding pins see Table 5 for pin description Set slide switch accordingly to SPI or I2C Press the RST button after changing the switch 2 Th...

Page 7: ...0 mA 4 3 Evaluation unit Figure 2 shows the front and the rear panel of the EVK M8T evaluation unit Front panel Rear panel Figure 2 EVK M8T evaluation unit front and rear panels 4 3 1 Antenna connecto...

Page 8: ...n The RST button on the front panel resets the unit To avoid an inadvertent reset the button is recessed 4 3 5 Safe boot button This is used to set the unit in safe boot mode In this mode the receiver...

Page 9: ...ction for over all current measurement see Figure 5 10 P2A O 3 0 V Battery output unloaded 100 1 resistor for battery backup current measurement to pin 9 P2B NOTE There is a current protection to 3 mA...

Page 10: ...CR2450 The battery has a rated capacity of 540 mA The battery operating temperature range is 40 C to 85 C If the built in backup battery runs low or is empty after a long storage period purchase the b...

Page 11: ...download all the Aiding Data via the AssistNow Online service 3 Read the voltage and average if necessary on the voltmeter and convert to current 1 mV equals 1 mA 4 Perform the test with good signals...

Page 12: ...e save configuration box in u center otherwise the configuration will be lost Communications to the evaluation kit must be via the UART I2C or SPI not USB The evaluation kit can be supplied via the US...

Page 13: ...EVK M8T User Guide UBX 14041540 R05 Block diagram Page 13 of 22 Early Production Information 7 Block diagram Figure 5 EVK M8T block diagram...

Page 14: ...ide UBX 14041540 R05 Board layout Page 14 of 22 Early Production Information 8 Board layout Figure 6 shows the EVK M8T board layout PCB Version B See Table 6 for the component list of the EVB Figure 6...

Page 15: ...M PITCH DISCONNECTABLE CRIMP CONNECTOR 40 85C J6 CON 1 ROW THT 100MIL GRID 2PINS 0 64MM SQUARE 6 1MM HEIGHT L2 IND MURATA LQW15A 0402 120N 5 0 64A 55 125C Q1 MBT3906DW1T1G DUAL GENERAL PURPOSE TRANSIS...

Page 16: ...EVK M8T User Guide UBX 14041540 R05 Schematic Page 16 of 22 Early Production Information 9 Schematic Figure 7 Schematic EVK M8T DNI TRUE in the schematic means Component not installed...

Page 17: ...41540 R05 Battery replacement Page 17 of 22 Early Production Information 10 Battery replacement To replace the battery Number 5 in Figure 8 open the unit unscrew four screws on the front panel Figure...

Page 18: ...le on your computer will show up in the COM port drop down list If a COM Port is gray another application running on this computer is using it The position is off by a few dozen meters u blox M8 GNSS...

Page 19: ...ngs aren t good This provides safety as it is no longer possible to accidentally program a bad configuration e g disabling the main communication port The EVK M8T does not work properly when connected...

Page 20: ...have an impact on signal travel time The position of the GNSS receiver is typically not the same between two tests Comparative tests should therefore be conducted in parallel by using one antenna and...

Page 21: ...ocumentation and to receive product change notifications register on our homepage www u blox com Revision history Revision Date Name Comments R01 07 Nov 2014 amil alnu Advance Information R02 07 Jan 2...

Page 22: ...p u blox com Regional Office China Beijing Phone 86 10 68 133 545 E mail info_cn u blox com Support support_cn u blox com Regional Office China Chongqing Phone 86 23 6815 1588 E mail info_cn u blox co...

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