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HP module EVK hardware user guide – XM112, XB112
LH112
3.1.2
Power
The EVK is powered via the USB connectors on XB112. USB1 powers the USB-UART chip (U4) and
the XM112. USB2 powers the USB-SPI chip (U5). If no SPI data is needed, the USB2 can be left
unconnected. USB1 must however always be connected. If the USB-UART interface is not used, a
dedicated USB charger can be inserted to USB1.
When the power LED on the XB112 is lit, the breakout board and the XM112 radar module (if
connected to the board-to-board connector on the top side of XB112) are powered on and ready for
use. For details regarding the power management on XB112, refer to the XB112 product brief.
Page 10 of 41
© 2018 by Acconeer – All rights reserved
2022-08-25
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