u-blox EVK-M8L, Руководство пользователя

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EVK-M8L - User guide
UBX-20028627 - R01 Page 3 of 33
C1-Public Contents
Contents
Document information ................................................................................................................................ 2
Contents .......................................................................................................................................................... 3
1 Product description .............................................................................................................................. 5
1.1 Overview ........................................................................................................................................................ 5
1.2 Kit includes ................................................................................................................................................... 5
1.3 Evaluation software .................................................................................................................................... 5
1.4 System requirements ................................................................................................................................ 5
2 Specifications ......................................................................................................................................... 6
2.1 Safety precautions ..................................................................................................................................... 6
3 Device description ................................................................................................................................. 7
3.1 Interface connection and measurement ................................................................................................ 7
3.2 Active antenna ............................................................................................................................................. 7
3.3 Evaluation unit ............................................................................................................................................. 7
3.3.1 Antenna connector ............................................................................................................................. 7
3.3.2 USB ........................................................................................................................................................ 8
3.3.3 UART ..................................................................................................................................................... 8
3.3.4 RST button ........................................................................................................................................... 8
3.3.5 Safe boot button ................................................................................................................................. 8
3.3.6 Slide switch .......................................................................................................................................... 9
3.3.7 Front connector .................................................................................................................................. 9
3.3.8 LED.......................................................................................................................................................10
3.3.9 Backup battery ..................................................................................................................................10
3.3.10 GNSS configuration .........................................................................................................................11
4 Setting up .............................................................................................................................................. 12
4.1 Test vehicle preparation ..........................................................................................................................12
4.1.1 Wiring harness of the Head Unit ...................................................................................................12
4.1.2 OBD-II to VSS converter ..................................................................................................................13
4.1.3 Wheel speed sensor .........................................................................................................................13
4.2 EVK-M8L installation ...............................................................................................................................13
4.2.1 Mounting the GNSS antenna .........................................................................................................13
4.2.2 Mounting the EVK-M8L ..................................................................................................................13
4.2.3 Connecting the cables .....................................................................................................................14
4.3 Recommended configuration .................................................................................................................15
4.3.1 Serial port default configuration ...................................................................................................15
4.3.2 ADR configuration ............................................................................................................................15
4.4 Configuration and calibration drive .......................................................................................................18
5 Test drives ............................................................................................................................................ 21
6 Measuring tracking current ............................................................................................................ 22
7 Block diagram ..................................................................................................................................... 23
8 Board layout .......................................................................................................................................... 24