Ublox BMD-340-EVAL, Руководство пользователя

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BMD-34x-EVAL User Guide Rev 2.0
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power. Only if the power protection diodes are left intact, USB can be connected at the same time the
coin cell or external power is still applied allowing for easy programming of the module.
6.1.2 USB Peripheral Power
VBUS Power from the USB Peripheral interface on the BMD-340 may be used to power the BMD-340-
EVAL by moving SW7 to the
“HV” setting . This enables the internal high-voltage regulator (LDO or DC-
DC). When in the HV setting, the power switch SW6 should be left in the OFF position, especially if any
of the protection diodes are bypassed.
Figure 5 – Schematic – Power Supply
6.2 Reset
The BMD-34x module has a configurable hardware reset. P0.18 is assumed to be used as the reset pin
for all Rigado and Nordic example projects, and thus the evaluation board hardware is configured to
use P0.18 as a reset. The Reset button can be configured to connect to an input on the interface IC or
to directly connect to P0.18.