Inertial Sensors; Dip Switch - Thundercomm TurboX C865 Dev Kit Hardware User's Manual

C865 DEV KIT has the translation from USB1, a USB HUB and a USB to Gigabit Ethernet controller.
C865 DEV KIT uses an RJ45 (see Section1.2.1, #9) as the physical interface.

3.18.2 Inertial Sensors

C865 DEV KIT includes the following inertial sensors.

6-axis accelerometer/gyroscope: INVENSENSE ICM-42688
The SPI interface for ICM-42688 is multiplexing to LS3 by a SPDT, controlled by
DIP_SENSOR_SWITCH_IMU. Setting DIP_SENSOR_SWITCH_IMU of DIP switch (section1.2.2
#16) to OFF will enable ICM-42688's SPI communication.

3.18.3 DIP Switch

C865 DEV KIT has two DIP switches (see Section 1.2.2, #16&#17).
DIP switch (section1.2.2 #16)
Switch 1 – DIP_MIC_SWITCH: When set to ON, will enable on board MIC; when set to OFF,

will enable DMIC1 on LS2
Switch 2 – DIP_DEBUG_UART_SWITCH: When set to ON position, will enable on board debug

UART; when set to OFF, will enable UART1 on LS1.
Switch 3 – CBL_PWR_N: When set to ON, the SM8250 system will power on automatically

when main power is asserted; when set to OFF, the SM8250 system will power on by ON-KEY
manual press.
Switch 4 – DIP_HDMI_SWITCH: When set to ON, will enable DSI0 to HS1 and DSI1 to HS3;

when set to OFF, will enable DSI1&2 to LT9611UXC and on board HDMI.
Switch 5 – DIP_SENSOR_SWITCH_IMU: When set to ON, will enable SPI to LS3; when set to

OFF, will enable SPI to on board sensor ICM_42688.
Switch 6 – IMU_EXT_CLK_TOGGLE: When set to ON, the onboard ICM-42688 sensor will use

the external CLK of GPIO3 from PM8250; when set to OFF, the onboard ICM-42688 sensor will
output interrupt to SoC GPIO113. These GPIOs need the software configure setting.
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