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Summary of Contents for Ublox EVK-M8QSAM
- Page 1 EVK-M8QSAM Evaluation Kit User Guide Abstract This document describes the structure and use of the EVK-M8QSAM evaluation kit and provides information for evaluating and testing the u-blox SAM-M8Q GNSS patch antenna module. www.u-blox.com UBX-16018104 - R05...
- Page 2 Document contains the final product specification. European Union regulatory compliance EVK-M8QSAM complies with all relevant requirements for RED 2014/53/EU. The EVK-M8QSAM Declaration of Conformity (DoC) is available at www.u-blox.com (Support --> Product Resources --> Conformity Declaration). This document applies to the following products:...
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Page 3: Preface
“Directive 2002/95/EC and Directive 2011/65/EU of the European Parliament and the Council on the Restriction of Use of certain Hazardous Substances in Electrical and Electronic Equipment” (RoHS). EVK-M8QSAM evaluation kit is RoHS compliant and green (no halogens). UBX-16018104 - R05 Early Production Information... -
Page 4: Table Of Contents
EVK-M8QSAM User Guide Contents Preface ..........................3 Using this guide ............................... 3 Warnings and certifications ..........................3 Contents ..........................4 Product description ...................... 6 Overview .............................. 6 Kit includes ............................6 Software and documentation ....................... 6 u-center GNSS evaluation software ....................... 6 System requirements .......................... - Page 5 EVK-M8QSAM User Guide Board layout ....................... 16 Schematic ........................18 10 Troubleshooting ......................19 11 Common evaluation pitfalls ..................21 Related documents......................22 Revision history ........................ 22 Contact ..........................23 UBX-16018104 - R05 Early Production Information Contents Page 5 of 23...
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Page 6: Product Description
Because of the integrated antennas in the SAM-M8Q module, the standard u-blox GNSS EVK aluminum box cannot be used for the EVK-M8QSAM. A plastic cap is attached on the top of the antenna module in EVK-M8QSAM. The purpose of the cap is to prevent air flow inside the SAM-M8Q shield. -
Page 7: Specifications
Table 2: EVK-M8QSAM specification 2.1 Safety precautions EVK-M8QSAM must be supplied by an external limited power source in compliance with the clause 2.5 of the standard IEC 60950-1. In addition to external limited power source, only separated or Safety Extra-Low Voltage (SELV) circuits are to be connected to the evaluation kit, including interfaces and antennas. -
Page 8: Getting Started
2. The device must always have power, either via USB on the back or the V5_IN input on the front. 3. The EVK-M8QSAM evaluation kit includes a SAM-M8Q concurrent GNSS module with embedded patch antenna. There is no external antenna connectivity to RF IN. Place the evaluation kit in a location with good sky view. -
Page 9: Device Description
Hardware Integration Manual [2]. External antenna connectivity through SMA connector is not available in the EVK-M8QSAM. 4.3 Evaluation unit Figure 2 shows the top view with front and the rear sides of the EVK-M8QSAM evaluation unit. Rear side Front side Figure 2: EVK-M8QSAM evaluation unit –... -
Page 10: Antenna Connector
(rising or falling edge). Check the product data sheet for detailed specification of configurable values. On EVK-M8QSAM kits produced in June 2017 or later (see Figure 3), the “TIMEPULSE” signal is available on the test connector, see section 4.3.8. -
Page 11: Rst Button
EVK-M8QSAM User Guide 4.3.5 RST button The RST button on the front side resets the unit. To avoid an inadvertent reset, the button is recessed. 4.3.6 Safe boot button This is used to set the unit in safe boot mode. In this mode the receiver executes only the minimal functionality. -
Page 12: Led
4.3.12 AssistNow Autonomous AssistNow Autonomous is enabled by default in the EVK-M8QSAM for faster fix in situations where satellite signals are weak. For more information about this A-GNSS feature see the SAM-M8Q Data Sheet [1]. AssistNow Autonomous is disabled by default in the SAM-M8Q module In case of using EVK-M8QSAM with simulator, the AssistNow Autonomous should be disabled by using the UBX-CFG-NAVX5 message. -
Page 13: Measuring Tracking Current
EVK-M8QSAM User Guide 5 Measuring tracking current To measure the tracking current with EVK-M8QSAM, follow these steps: 1. Connect a true rms voltmeter across P1A (VCC) and P1B of the front connector (see Figure 5). 2. Wait 12 minutes to download all GNSS orbital data, or download all the Aiding Data via the AssistNow Online service 3. -
Page 14: Testing Power Save Mode
EVK-M8QSAM User Guide 6 Testing Power Save Mode When testing Power Save Mode with EVK-M8QSAM, observe the following points: A set of predefined power mode setups can be selected using the CFG-PMS message. The Configuration view or Messages view of the u-center evaluation software can be used to do this. When enabling the mode using CFG-PMS, always save the configuration by checking the “save configuration”... -
Page 15: Block Diagram
EVK-M8QSAM User Guide 7 Block diagram Figure 6: EVK-M8QSAM block diagram UBX-16018104 - R05 Early Production Information Block diagram Page 15 of 23... -
Page 16: Board Layout
EVK-M8QSAM User Guide 8 Board layout Figure 7 shows the EVK-M8QSAM board layout. See Table 6 for the component list of the EVB. Figure 7: EVB-SAM_CAM layout UBX-16018104 - R05 Early Production Information Board layout Page 16 of 23... - Page 17 EVK-M8QSAM User Guide PART DESCRIPTION GNSS RECEIVER U-BLOX SAM-M8Q WITH EMBEDDED ANTENNA 3,3V -40/+85C PLASTIC HOUSING 1551FTBU BATTERY HOLDER RENATA CR2450N 3 V C1 C7 C16 C19 C25 C28 C32 CAP CER X7R 0603 100N 10% 10 V C10 C2 C6 C8 C22 CAP CER X5R 0603 1U0 10% 6.3 V...
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Page 18: Schematic
9 Schematic Figure 8: Schematic EVK-M8QSAM: DNI=TRUE in the schematic means: Component not installed UBX-16018104 - R05 Early Production Information Schematic Page 18 of 23... -
Page 19: Troubleshooting
Only the COM ports that are available 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. After installing USB driver for the first time by connecting EVK-M8QSAM to PC with USB cable, the cursor on PC starts to jump around the screen The syndrome is caused when the NMEA 0183 GNSS serial data is misinterpreted as a mouse data by the serial port enumerator (serenum.sys), resulting in erratic mouse cursor activity. - Page 20 50 dBHz. With a standard off-the-shelf active antenna, 47 dBHz should easily be achieved. Low C/No values lead to a prolonged startup time. The EVK-M8QSAM does not work properly when connected with a GNSS simulator There is no RF-input for simulator signal. Instead the signal can be re-radiated to the module by connecting the simulator to a passive GNSS antenna, which is placed above the module.
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Page 21: Common Evaluation Pitfalls
EVK-M8QSAM - User Guide 11 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 22: Related Documents
EVK-M8QSAM - User Guide Related documents SAM-M8Q Data Sheet, Docu. No. UBX-16012619 SAM-M8Q Hardware Integration Manual, Docu. No. UBX-16018358 u-blox 8 / u-blox M8 Receiver Description including Protocol Specification, Docu. No. UBX-13003221 (Public Release) u-center – User Guide, Docu. No. UBX-13005250 Information technology equipment –... -
Page 23: Contact
EVK-M8QSAM - 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...
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