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8 Device configuration
This section shows how to configure and evaluate some important receiver features on EVK-M101/
C related to power modes, GNSS constellations, navigation rate, and internal LNA modes of the
receiver. In addition, the receiver can be configured with the Advanced Configuration View of the u-
center 2 evaluation tool as shown in
Figure 7: EVK-M101/C receiver configuration view
The receiver configuration can be saved to the receiver RAM, or to the battery-backed RAM
(BBR), or to the available SPI flash memory. The RAM content is cleared after the 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 or permanently in
Flash. The BBR content is maintained as long as the backup battery supply is available. The content
of the flash memory is preserved between power cycles and thus, it is the preferred option for long-
term storage of the receiver configuration.
8.1 Communication ports
The FTDI USB-to-UART converter generates four virtual communication (COM) ports as shown in
Figure
8. The third COM port based on the COM port ID is the correct port to use. For example, if the
generated COM ports are COM1, COM2, COM3, and COM4, then the port to use is COM3.
If the RS-232 port is also connected to the same PC, there will be an additional COM port for
the RS-232 serial connection.
UBX-21003949 - R04
C1-Public
Figure
7.
8 Device configuration
EVK-M101, EVK-M101C - User guide
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