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Related Manuals for Ublox EVK-M8U
Summary of Contents for Ublox EVK-M8U
- Page 1 EVK-M8U Evaluation Kit User Guide Abstract This document describes the structure and use of the EVK-M8U evaluation kit and provides information for evaluating and testing u-blox M8 Untethered Dead Reckoning (UDR) positioning technology. www.u-blox.com UBX-15023994 - R01...
- Page 2 EVK-M8U - User Guide Document Information Title EVK-M8U Subtitle Evaluation Kit Document type User Guide Document number UBX-15023994 Revision and Date 23-May-2016 Document status Advance Information Document status explanation Objective Specification Document contains target values. Revised and supplementary data will be published later.
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Page 3: Preface
EVK-M8U User Guide Preface Using this guide This guide assumes, the user has basic computer skills and is familiar with the Windows Graphical User Interface (GUI) and GNSS receiver environments. The following symbols are used in the document to highlight information: A warning symbol indicates actions that could negatively impact or damage the device. -
Page 4: Table Of Contents
GNSS Configuration ........................11 Setting up ........................11 EVK-M8U installation .......................... 11 4.1.1 Mounting the GNSS antenna ....................... 11 4.1.2 Mounting the EVK-M8U ......................11 4.1.3 Connecting the cables ......................... 12 Recommended configuration ......................12 4.2.1 Serial port default configuration ....................12 4.2.2... - Page 5 EVK-M8U User Guide Block diagram ......................17 Board layout ....................... 18 Schematic ........................20 10 Battery replacement ....................21 11 Troubleshooting ......................22 12 Common evaluation pitfalls ..................24 Related documents......................25 Revision history ........................ 25 Contact ..........................26 UBX-15023994 - R01...
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Page 6: Product Description
1 Product description 1.1 Overview The EVK-M8U evaluation kit simplifies the evaluation of the high performance u-blox M8 UDR positioning products. The built-in USB interface provides both power supply and high-speed data transfer, and eliminates the need for an external power supply. The u-blox evaluation kits are compact, and their user friendly interface and power supply make them ideally suited for use in laboratories, vehicles and outdoor locations. -
Page 7: Specifications
5V via USB or external powered via extra power supply pin 14 (V5_IN) and common supply/interface ground pin 13 (GND) Normal Operating temperature -40°C to +65°C Table 2: EVK-M8U specifications UBX-15023994 - R01 Advance Information Specifications Page 7 of 26... -
Page 8: Device Description
Figure 1: Connecting the unit for power supply and communication 3.2 Active antenna The EVK-M8U evaluation kit includes a GPS / GLONASS / BeiDou antenna with a 3 m cable. It is possible to connect various active and passive GNSS antennas with SMA connectors to the evaluation unit. -
Page 9: Usb
Table 3: SUB-D9 Connector pin description for EVK-M8U 3.3.4 RST button The RST button on the front panel resets the unit. To avoid an inadvertent reset, the button is recessed. 3.3.5 Safe boot button This is used to set the unit in safe boot mode. -
Page 10: Front Test Connector
If slide switch on SPI, then SPI interface selected; Master out Slave in (MOSI) Common ground pin Table 4: Connector pin description for EVK-M8U (pins numbered from right to left on the front panel) THE EVK CASE-WORK IS CONNECTED TO THE COMMON SUPPLY/INTERFACE GROUND PIN (PIN 13). -
Page 11: Gnss Configuration
The EVK should not be attached to any ‘live’ (unsprung) part of the vehicle’s suspension. Often it is enough to use strong double sided tape or Velcro tape glued to the bottom of the EVK-M8U casing. If necessary, mounting brackets may be attached using the end-plate retaining bolts (M3). -
Page 12: Connecting The Cables
You will need to solder the necessary I/O cables to signal sources and outputs as specified in Table 5. 1. Connect the finalized cable to the front connector of EVK-M8U. 2. Connect the unit to a PC running Microsoft Windows by a. - Page 13 EVK-M8U User Guide Figure 4: Screenshot of u-center showing the INITIALIZING mode in UBX-ESF-STATUS message 4.2.2.2 Fusion mode Once initialization phase is achieved, the receiver enters navigation mode and starts to compute combined GNSS/Dead-reckoning fixes and to calibrate the sensor required for computing the fused navigation solution.
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Page 14: Accelerated Initialization And Calibration Procedure
EVK-M8U User Guide Figure 6: Screenshot of u-center showing the sensor calibration as CALIBRATED 4.3 Accelerated initialization and calibration procedure This section describes how to perform fast initialization and calibration of the UDR receiver for the purpose of evaluation. The duration of the initialization phase mostly depends on the quality of the GNSS signals and the dynamics encountered by the vehicle. -
Page 15: Test Drives
EVK-M8U User Guide 5 Test drives Before testing can be done, make sure that the initialization and calibration have been completed according to chapter 4. We recommend recording and archiving the data of your test drives. You can enable additional debug messages by clicking the Debug button, and then clicking the Record button (see Figure 7). -
Page 16: Measuring Tracking Current
EVK-M8U User Guide 6 Measuring tracking current To measure the NEO-M8U module tracking current with EVK-M8U, follow these steps: 1. Connect a mean-reading voltmeter across P1A (VCC) and P1B of the front connector. (see Figure 91) 2. Wait 12 minutes to download all GNSS orbital data, or download all the Aiding Data via the AssistNow Online service 3. -
Page 17: Block Diagram
EVK-M8U User Guide 7 Block diagram Figure 10: EVK-M8U block diagram UBX-15023994 - R01 Advance Information Block diagram Page 17 of 26... -
Page 18: Board Layout
EVK-M8U User Guide 8 Board layout Figure 11 shows the EVK-M8U board layout (PCB Version D). See Table 6 for the component list of the EVB. Figure 11: EVK-M8U layout UBX-15023994 - R01 Advance Information Board layout Page 18 of 26... - Page 19 LOW NOISE AMPLIFIER GAAS MMIC 1.575 GHZ 1.5V-3.6V JRC EPFFP6-A2 3.6V -40/+85C RS-232 TRANSCEIVER 1MBIT 3-5,5VOLT TRSF3223 – VQFN20 5.5V -40/+85C TINY LOGIC ULP-A 2-INPUT AND GATE 1.45X1.0 6-LEAD MICROPAK -40/+85C Table 6: EVK-M8U component list UBX-15023994 - R01 Advance Information...
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Page 20: Schematic
9 Schematic Figure 12: Schematic EVK-M8U: DNI=TRUE in the schematic means: Component not installed UBX-15023994 - R01 Advance Information... -
Page 21: Battery Replacement
10 Battery replacement To replace the battery (Number 5 in Figure 13), open the unit (unscrew four screws on the front panel). Figure 13: EVK-M8U battery location UBX-15023994 - R01 Advance Information... -
Page 22: Troubleshooting
Before shutting down the receiver externally, check the status in MON-HW in field “Real Time Clock Status”. Do not shut down the receiver if the RTC is not calibrated. The EVK-M8U does not meet the TTFF specification Make sure the antenna has a good sky view. An obstructed view leads to prolonged startup times. In a well-... - Page 23 This provides safety, as it is no longer possible to accidentally program a bad configuration (e.g. disabling the main communication port). The EVK-M8U does not work properly when connected with a GNSS simulator When using an EVK together with a GNSS simulator, pay attention to proper handling of the EVK. A GNSS receiver is designed for real-life use, i.e.
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Page 24: Common Evaluation Pitfalls
EVK-M8U - User Guide 12 Common evaluation pitfalls A parameter may have the same name but a different definition. GNSS receivers may have a similar size, price and power consumption, but can still have different functionalities (e.g. no support for passive antennas, different temperature range). -
Page 25: Related Documents
EVK-M8U - User Guide Related documents NEO-M8U Data Sheet, Docu. No UBX-15015679 NEO-M8U Hardware Integration Manual, Docu. No UBX-15016700 u-blox 8 / M8 Receiver Description including Protocol Specification, Docu. No UBX-13003221 u-center – User Guide, Docu. No UBX-13005250 For regular updates to u-blox documentation and to receive product change notifications, register on our homepage (http://www.u-blox.com). -
Page 26: Contact
EVK-M8U - User Guide Contact For complete contact information visit us at www.u-blox.com u-blox Offices North, Central and South America Headquarters Asia, Australia, Pacific Europe, Middle East, Africa u-blox America, Inc. u-blox Singapore Pte. Ltd. u-blox AG Phone: +1 703 483 3180... - Page 27 X-ON Electronics Largest Supplier of Electrical and Electronic Components Click to view similar products for category: Data Conversion IC Development Tools Click to view products by manufacturer: U-Blox Other Similar products are found below : EV-AD5443/46/53SDZ EVAL-AD5063EBZ EVAL-AD5064EBZ EVAL-AD5361EBZ EVAL-AD5363EBZ EVAL-AD5373EBZ EVAL- AD5422LFEBZ EVAL-AD5629RSDZ EVAL-AD5755-1SDZ EVAL-AD5821AEBZ EVAL-AD7175-8SDZ EVAL-AD7262EDZ EVAL- AD7265EDZ EVAL-AD7366SDZ EVAL-AD7634EDZ EVAL-AD7641EDZ EVAL-AD7655EDZ EVAL-AD7674EDZ EVAL-AD7705EBZ EVAL-AD7718EBZ EVAL-AD7719EBZ EVAL-AD7730LEBZ EVAL-AD774142EBZ EVAL-AD7767-1EDZ EVAL-AD7873EBZ...