NXP Semiconductors
QN908x
DK User Guide
QN908x-DK
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© NXP B.V. 2017. All rights reserved.
User guide
Rev. 1.0
— June 2017
5 of 28
Table 1.
QN908x DK V1.2 board
’s mark information list
Number
Name
Description
1
QN908x USB port
The QN908x USB port provides power supply to the whole
board and the USB signal path to the QN908x module.
2
LPC4322 USB port
The LPC4322 USB port provides power supply to the
whole board and the USB signal path is connected to
LPC4322.
3
LPC4322
LPC4322 works as the JTAG/SWD link bridge.
4
QN908x module
The QN908x module boards come in two types, according
to the QN908x chip package: HVQFN and WLCSP.
5
Jumper JP1
This jumper sets the JTAG/SWD link bridge target:
•
Open: on-board target (default)
•
Short: off-board target
6
Jumper JP5
This jumper sets the LPC4322 DFU mode:
•
Short: DFU mode enabled
•
Open: normal mode (default)
7
Jumper JP7
This jumper sets the QN908x module power supply
voltage:
•
1-2: 1.8 V power supply
•
2-3: 3.0 V power supply
8
Jumper JP8
This jumper sets the QN908x ISP UART path mode:
•
Short: UART path enabled (default)
•
Open: UART path disabled
9
Jumper JP11
This jumper sets the QN908x external I
2
C path mode,
•
Short: I
2
C path enabled (default)
•
Open: I
2
C path disabled
10
Header J5 and J7
QN908x GPIO for testing and compatible with the Arduino
board interface.
11
Header J4 and J6
QN908x GPIO for testing and compatible with the Arduino
board interface.
12
Jumper JP12, JP13,
JP14
These jumpers are used for the power consumption test.
13
Header J8
PMod interface connector, compatible with PMod.
14
Debugger
connector
Used to offer the JTAG/SWD interfaces to the off-board
target.
15
Jumper JP2
This jumper sets the QN908x power supply source;
on-board power or EXT power.
16
Button3 SW3
Button3 resets the QN908x chip.
17
Button1 SW1
Button1 is a function button defined by the user.
18
Button2 SW2
Button2 is a function button defined by the user.
19
Jumper JP15
Jumper used to enable the QN908x chip mode function.
20
GND Pin
GND pin used as the test ground pin.
21
Jumper JP16
Jumper used to cut off the USB leakage, when the DK
board is powered by a battery.