Ublox EVK-M91 Manuel utilisateur
Setup overview
1. Download and install the u-center GNSS evalua-
tion software from www.u-blox.com/u-center.
2. Connect the unit to a PC. Options:
• Connect via USB port. The USB driver installs
automatically when the device is connected to
the PC; internet connection is required.
• Connect via RS232 port (UART interface). Set
the interface switch (2) to I2C.
• SPI / I2C: Set switch to either SPI or I2C and
connect the appropriate pins (1).
Note: Press RST after setting the switch.
3. The device must always have power, either via
USB on the back or the V5 IN pin (3) on the front.
4. Connect the provided GNSS antenna to the eval-
uation unit and place the antenna so that it has
an unobstructed view to the sky. Alternatively,
connect a GNSS simulator signal directly to the
EVK-M91 RF input.
5. Start the u-center GNSS evaluation software
and select the corresponding COM port and
baud rate.
Quick start for EVK-M91
Copyright © 2019, u-blox AGUBX-19058278-R01
Interfaces
EVK-M91 can be used to evaluate all interfaces
available on the u-blox M9 chips and modules.
The evaluation unit provides a standard USB
connector for communication and powering the
device, and an RS232 connector for connecting
to the COM port on your PC.
SPI and the I2C interfaces are designed to ena-
ble communication with a host CPU.
Kit includes
• EVK-M91 evaluation board
• Type-C USB cable
• Active GNSS antenna with a 3 m cable
• Welcome card
u-center installation
• Internet connection is required.
• Supported Windows operating systems are
Windows 7 and onwards (x86 and x64).
• Unzipthedownloadedu-centersetuple,
runtheextractedle,andfollowtheinstaller
instructions.
• When the installation is complete, the
u-center program is available in the Windows
Start menu > All programs > u-blox.
More information
See the recommendations in the EVK-M91
User guide when using the EVK with a GNSS
simulator.
For more information about EVK-M91, contact
your nearest u-blox support. For complete con-
tact information, visit us at www.u-blox.com.
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