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Development Kit User Guide
3.9.
GPIO Control
Note:
This interface is not supported on the HL6528RDx.
Two switch sets, SW1000 and SW1001, are available on the Development Kit for GPIO test
purposes.
Figure 20.
GPIOs Control Switches
SW1000 enables GPIO1 to GPIO8; while SW1001 enables these GPIOs to be connected to VIO
either as 1kΩ pull ups or 100Ω pull lows.
GPIO settings can be set or reset using AT commands. For more information about AT commands,
refer to document [1] AirPrime HL6 and HL8 Series AT Commands Interface Guide.
3.10. Current Measurement
Note:
This interface is not supported on the HL6528RDx.
To measure the current consumed by the HL series embedded module, disconnect CN405 and
supply the Development Kit interfaces separately. Refer to the following figure for the jumper location.
Figure 21.
Jumper for Supplying the Development Kit Interfaces Separately
VBAT_BB and VBAT_RF can be measured separately or as a total current drain depending on the
configurations of CN403 and CN404.
4114877
CN405
Rev 5.0
Interfaces
October 12, 2015
31
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