Thingmagic Mercury xPRESS Platform v1.7 Manual de usuario Pagina 112

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A DIVISION OF TRIMBLE
112 Hardware Reference Guide
operation. If the programmer wishes this function to be disabled under normal operation,
they can have the program define this MCU pin as a normal programmable input pin.
A green LED on the xPRESS motherboard (D1) indicates the charging status of the
battery as follows:
On = Charging
Off = Charged or no battery present
Flashing approximately 1.5 times per second = NTC fault
Flashing approximately 6 times per second = Bad battery
The Charging LED states are controlled by the Battery Charging Controller IC and are not
programmable.
OTG USB Interface
The micro-AB USB connection (“USBOTG”, J7) is the primary data connection to the
xPRESS motherboard. This does not require a special USB driver. It is normally
connected to a USB host interface, such as is found on a PC, but this port can also allow
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