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(4) Pin Header for User-App (CN16)
This pin header is for user application evaluation.
The connection destination of each pin is shown in the table below.
Pin No.
Access Point
Descriptipn
1
Push Button
H or L
Pushing is L.
2
GND
GND
3
Dip Switch
H or L
4
GND
GND
5
Volume
Separating I/O volatage
6
GND
GND
7
LED (Red)
Lighting is L.
8
GND
GND
(5) Mini-USB Connector (CN17)
Power Select (Please show Power select pin)
By connecting a USB cable to this connector, Bluetooth LE IC
can be controlled with UART from Windows PC.
When using this function, it is necessary to download and install
the VCP driver from the Silicon labs company website in
advance.
(6) Half Pitch 10 pin Connector for SWD Connector (CN10)
It is for ARM debugger connection. You can debug the Bluetooth
LE IC with the SWD interface.
Debugging function is exclusive with CMSIS-DAP(CN12).
(7) Mini-USB Connector (CN12)
It is for CMSIS-DAP. You can debug the Bluetooth LE IC without
using an external debugger.
Debugging function is exclusive with SWD Connector(CN10).
(8) Pin Header (CN14)
Shorting this pin header enables the CMSIS-DAP function..
(9) Pin Header (CN15)
This Pin Header is for selecting VBUS power supply.
1-2 → Power is supplied from CN17.
2-3 → Power is supplied from CN12.
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