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EVK-M10QSAM - User guide

7 Board layout

Figure 6: EVK-M10QSAM board layout

Figure 7: EVK-M10QSAM PCB

UBX-22026860 - R01

7 Board layout

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Содержание EVK-M10QSAM

Страница 1: ... User guide Abstract This document describes the structure and use of the EVK M10QSAM evaluation kit and provides information for evaluating the u blox SAM M10Q GNSS patch antenna module www u blox com UBX 22026860 R01 C1 Public ...

Страница 2: ...ocument Copying reproduction or modiﬁcation of this document or any part thereof is only permitted with the express written permission of u blox Disclosure to third parties is permitted for clearly public documents only The information contained herein is provided as is and u blox assumes no liability for its use No warranty either express or implied is given including but not limited to with resp...

Страница 3: ...SB 10 4 1 4 UART 10 4 1 5 I2C 11 4 2 GNSS input signal 11 4 3 Time pulse 11 4 4 Reset button 11 4 5 Safe boot button 12 4 6 LED 12 4 7 Backup Battery 12 4 8 External interrupt 12 5 Measuring current 13 5 1 Measuring GNSS current 13 5 2 Measuring backup current 13 6 Block diagram 14 7 Board layout 15 8 Schematic 16 9 Device conﬁguration 17 9 1 Communication ports 17 9 1 1 UART baud rate conﬁguratio...

Страница 4: ...Appendix 26 A Glossary 26 Related documents 27 Revision history 28 ...

Страница 5: ...ll stages of design in projects Evaluation kit Description Related products EVK M10QSAM u blox M10 evaluation kit with patch antenna SAM M10Q antenna module 1 Table 1 EVK M10QSAM supported products 1 2 Kit contents The delivery package contains The EVK M10QSAM evaluation unit plain PCB board A USB cable Because of the integrated antennas in the SAM M10Q module the standard u blox GNSS EVK aluminum...

Страница 6: ...2018 3 for more information on the PS1 class In addition to a limited power source only ES1 class circuits are to be connected to the EVK M10QSAM including interfaces and antennas See section 5 2 1 1 of IEC 62368 1 2018 3 for more information on the ES1 class 2 2 Approvals The EVK M10QSAM is designed for the presumption of conformity with the essential requirements and other relevant provisions of...

Страница 7: ...the interface cable to the EVK select the interface that you are using for the connection by sliding the interface switch to the correct position USB Connect via USB port UART Connect via RS 232 or through the 14 pin connector CAUTION Changing the interface switch position while the EVK is powered on may damage the GNSS receiver chip Power oﬀ the EVK before changing the interface switch setting Re...

Страница 8: ... the interface in use The EVK also includes an on board USB to Serial converter for USB to UART communication with the receiver For current measurements and to evaluate the available digital interfaces additional measurement equipment and devices can be connected to the 14 pin connector on the front side of the EVK unit The EVK design allows the front side pins to be used simultaneously with the o...

Страница 9: ...t signals communication interfaces and supply options All these pins are ESD protected The 14 pin connector can be used for communicating with the receiver through the UART and I2C interfaces In addition the 14 pin connector provides ﬂexibility for evaluating other advanced scenarios Pin no Pin name I O Level Description 14 V5_IN I 4 75 5 25 V Power input can be used instead of USB 13 GND I Common...

Страница 10: ...ion The easiest way to evaluate the EVK M10QSAM operation is to connect the EVK to a PC with the USB cable and then to use the u center 2 tool to conﬁgure and monitor the GNSS functions The USB connector is internally connected to a USB to Serial converter that connects to the UART interface of the u blox M10 receiver on the EVK This allows the USB connector to be used for communication as well In...

Страница 11: ...tains pins for evaluating I2C bus communication By default the I2C pull up resistors are populated on the EVK board which help if fast communication speed with long cable length is needed 4 2 GNSS input signal The SAM M10Q module is embedded with a GNSS patch antenna and the signal is further ﬁltered and ampliﬁed by the internal SAW ﬁlter and internal Low Noise Ampliﬁer LNA For more information se...

Страница 12: ...enable faster start up It is a RENATA 3 0 V Li MnO battery of the type CR2450 The battery has a rated capacity of 540 mA The battery operating temperature range is 40 C to 85 C In case the built in backup battery runs low or empty after a long storage period purchase the above described battery for replacement CAUTION Risk of explosion if battery is replaced by an incorrect type Make sure that bat...

Страница 13: ...with EVK M10QSAM follow these steps 1 Power up EVK M10QSAM 2 Connect a true RMS voltmeter across P1A pin 12 and P1B pin 11 of the 14 pin connector 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 and clear sky view to ensure that the receiver can acquire the satellite signals For more details see the setup bel...

Страница 14: ...agram EVK M10QSAM block diagram providing an overview on supply voltages current measurement and communication interfaces is shown in Figure 5 Figure 5 EVK M10QSAM block diagram UBX 22026860 R01 6 Block diagram Page 14 of 29 C1 Public ...

Страница 15: ...EVK M10QSAM User guide 7 Board layout Figure 6 EVK M10QSAM board layout Figure 7 EVK M10QSAM PCB UBX 22026860 R01 7 Board layout Page 15 of 29 C1 Public ...

Страница 16: ...EVK M10QSAM User guide 8 Schematic Figure 8 EVK M10QSAM schematic UBX 22026860 R01 8 Schematic Page 16 of 29 C1 Public ...

Страница 17: ... power supply is disconnected or in software standby mode and the oﬀ state of On Oﬀ power save mode PSMOO Therefore it is recommended to save the receiver conﬁguration to RAM and BBR The BBR content is maintained as long as the backup battery supply is available 9 1 Communication ports The FTDI USB to UART converter generates two virtual communication COM ports as shown in Figure 10 The ﬁrst COM p...

Страница 18: ...gure 10 EVK M10QSAM communication ports The COM ports may appear diﬀerently in diﬀerent Windows versions For example in Windows 10 it appears as shown in Figure 11 UBX 22026860 R01 9 Device conﬁguration Page 18 of 29 C1 Public ...

Страница 19: ...RT baud rate conﬁguration The baud rate for the UART communication to the receiver can be conﬁgured in the CFG UART1 BAUDRATE conﬁguration key The default baud rate is set to 9600 as shown in Figure 12 and the maximum baud rate is 921600 UBX 22026860 R01 9 Device conﬁguration Page 19 of 29 C1 Public ...

Страница 20: ...nually to resume communication and apply the remaining conﬁguration items 9 2 GNSS conﬁguration The default GNSS constellations that are enabled on the receiver are GPS Galileo GLONASS BeiDou B1C SBAS and QZSS The receiver GNSS conﬁguration can be updated by selecting the constellations in the GNSS Conﬁguration View as shown in Figure 13 Figure 13 EVK M10QSAM receiver GNSS conﬁguration UBX 2202686...

Страница 21: ... with the CFG PM OPERATEMODE conﬁguration key Continuous mode FULL This is the full power mode and the default mode of the receiver No power save mode is active in this mode On Oﬀ mode PSMOO This is a power save mode for reducing the power consumption of the receiver In this mode the receiver is conﬁgured to be periodically turned on or oﬀ for applications that require less frequent position updat...

Страница 22: ...ing oﬀ the main power supply of the EVK either by removing the USB cable or the 5 0 V supply from the 14 pin connector Software standby mode In this mode the receiver executes little or no system activity To wake the receiver up from the software standby mode the wakeup source can be conﬁgured in UBX RXM PMREQ message The available wakeup sources are EXTINT and UART RxD signals The duration in the...

Страница 23: ...ist If a COM port is gray or u center 2 is not able to connect to the selected COM port check if there is another application running on the computer that is using the same port There is no data received from the EVK after connecting the EVK to my application Check the interface switch position and ensure that it is set to the communication interface that is in use Do not change the interface swit...

Страница 24: ...can have serious side eﬀects on the performance of GNSS receivers The solution is to conﬁgure the GPS week rollover value to a week number preceding the date in GNSS simulator scenario For example setting the GPS week number to 1200 corresponding to Jan 2003 allows running simulator scenarios taking place after this date Please refer to Figure 17 for how to set the GPS week number with u center 2 ...

Страница 25: ...tly Atmospheric eﬀects i e dawn and dusk 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 a signal splitter statistical tests shall be run for 24 hours Monitor the carrier to noise ratio C N0 The average C N0 of the high elevation satellites should ...

Страница 26: ...harge Galileo European navigation satellite system GLONASS Russian navigation satellite system GND Ground GNSS Global Navigation Satellite System GPS Global Positioning System IEC International Electrotechnical Commission PCB Printed circuit board RF Radio frequency UBX u blox QZSS Quasi Zenith Satellite System 1 I2C is a registered trademark of Philips NXP UBX 22026860 R01 Appendix Page 26 of 29 ...

Страница 27: ...d IEC 62368 1 2018 4 u center 2 User guide www u blox com en info u center 2 user guide 5 u blox M10 SPG 5 10 Interface description UBX 21035062 UBX 21035061 NDA required For regular updates to u blox documentation and to receive product change notiﬁcations please register on our homepage https www u blox com UBX 22026860 R01 Related documents Page 27 of 29 C1 Public ...

Страница 28: ...EVK M10QSAM User guide Revision history Revision Date Name Status comments R01 15 Nov 2022 mban Initial release UBX 22026860 R01 Revision history Page 28 of 29 C1 Public ...

Страница 29: ...EVK M10QSAM User guide Contact For further support and contact information visit us at www u blox com support UBX 22026860 R01 Page 29 of 29 C1 Public ...

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