NXP Semiconductors QN908 series User manual

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DK User Guide
Rev. <MM.mm> — 27 April 2016 DK User Guide
Document information
Info Content
Keywords QN908x DK, User Guide
Abstract This document is an introduction of QN908x DK V1.2 board

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NXP Semiconductors
QN908x
DK User Guide
<DOC_ID> All information provided in this document is subject to legal disclaimers. © NXP Semiconductors N.V. 20144. All rights reserved.
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Rev. <
MM
.mm>
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27 April 2016
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Contact information
For more information, please visit: http://www.nxp.com
Revision history
Rev Date Description
0.1 20160818 Initial release
0.2 20160908 Update Figures, schematics and PCB layout according to QN908x DK board V1.0, add
QN9080 QFN Module board information.
0.3 20161110 Update pictures, schematics according to QN908x DK board V1.1, add current test using
DC Power Analyzer. Add notes about using battery as power supply for QN9080 module.
0.4 20170117 Update pictures, schematics according to QN908x DK board V1.2, and change the jumper
default settings.

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QN908x
<Alternative descriptive title>
<DOC_ID> All information provided in this document is subject to legal disclaimers. © NXP Semiconductors N.V. 2014. All rights reserved.
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1. Introduction
QN908x DK board is designed for QN908x HVQFN and WLCSP package IC evaluation
and development. It is very convenient to evaluate QN908x’s functions and performance.
There are also some useful peripherals, like GPIOs, PMod and Arduino interface. J-Link
and J-Trace functions are all supported for debugging QN908x. ISP download function is
also supported and very easy to use.
1.1 Purpose
This document introduces all functions of QN908x DK V1.2 board,and descripts all parts
on QN908x DK V1.2 board in details.
1.2 Kit contents
The QN9080 DK includes the following:
•QN9080DK board
•QN9080 USB dongle
•USB cable

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QN908x
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2. Hardware description
The QN9080 DK board provides easy access to peripherals such as
buttons, piezo buzzer and LED. The board also provides useful interfaces such as a USB
port for UART communication and CMSIS-DAP debug, and standard Arduino & Pmod
connector.
A USB dongle is a Bluetooth device powered by the QN9080. It acts as a master/slave
when
communicating with the QN9080 devices..
2.1 Hardware overview
QN908x DK V1.2 board is shown in Figure 1. The detailed information is listed in Table 1.
Figure 1 Board overview
Table 1 QN908x DK V1.2 board’s mar information list.
Number Name Description
1 QN908x USB port
QN908x USB Port, it provides power supply to the
whole board and USB signal path to QN908x
Module
2 LPC4322 USB port
LPC4322 USB Port, it provides power supply to the
whole board and the USB signal path is connected
to LPC4322
3 LPC4322 LPC4322 works as JTAG/SWD Link bridge
4 QN908x Module QN908x Module board has two types of board
according to QN908x chip package: HVQFN and

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WLCSP
5 Jumper JP1
Jumper to select JTAG/SWD Link bridge target,
Open: On board target (Default)
Short: Off board target
6 Jumper JP5
Jumper to set LPC4322 DFU mode,
Short: DFU mode enable
Open: Normal mode (Default)
7 Jumper JP7
QN908x Module power supply voltage select
Jumper:
1-2: 1.8V Power supply
2-3: 3.0V Power supply
8 Jumper JP8
Jumper to select QN908x ISP UART path mode,
Short: UART path enable (Default)
Open: UART path disable
9 Jumper JP11
Jumper to select QN908x external I2C path mode,
Short: I2C path enable (Default)
Open: I2C path disable
10 Header J5 and J7 QN908x GPIO for test and compatible to Arduino
board interface
11 Header J4 and J6 QN908x GPIO for test and compatible to Arduino
board interface
12 Jumper JP12,
JP13, JP14 Jumper to select Power Consumption Test
13 Header J8 PMod interface connector, compatible to PMod
14 J-Link Connector Used to offer JTAG/SWD interfaces for off-board
target
15 Jumper JP2 Jumper to select QN908x Power supply source,
on-board power or EXT power
16 Button3 SW3 Button3 used to reset QN908x chip
17 Button1 SW1 Button1 is a function button defined by user
18 Button2 SW2 Button2 is a function button defined by user
19 Jumper JP15 Jumper used to enable QN908x chip mode function
20 GND Pin GND pin used as test ground pin
21 Jumper JP16 Jumper used to cut off USB leakage, when DK
board powered by battery

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2.2 Default jumper settings on DK board
s shown in Figure 2, power, JTAG/SWD, UART and I2C enable jumpers are connected
in default. Table 2 and Table 3 show jumper’s function and how to connect.
Figure 2 Board jumper default settings
Table 2 QN9080A MINIDK board’s default jumper settings
Jumper Jumpers Setting Function
JP2 Pin 1,2 shorted QN908x on-board power
JP7
Pin 1,2 shorted QN908x’s power(1.8V)
Pin 2,3 shorted QN908x’s power(3V)
JP8 Pin 1,2 open UART path disable
JP11 Pin 1, 2 open I2C path disable
JP16 Pin 1,2 shorted When DK board powered by
battery, leave it open
2.3 J-Link OB debugger
The J-Link MCUXpresso OB provides both SWD/JTAG and UART interface. Users can
download or update firmware into a QN908x device by using the UART or JTAG/SWD
interface. There is the J-Link connector for programming and debugging off-board target,
shown in Figure 3.

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Figure 3 J-Lin connector
2.4 QN9080 Module
QN908x IC integrates a BLE radio, controller, protocol stack and profile software on a
single chip, which can provide a flexible and easy way to use BLE SoC solution. It also
includes a high performance MCU (32-bit ARM Cortex-M4F), on-chip memory, and
peripherals for users to develop a truly single chip wireless MCU solution.
Shown in Figure 4.
Figure 4 QN9080 Module Board
QN908x Module has MIFA antenna on front of board. So it can work without external
antenna. There is a RF connector that is with switch on RF front-end. You can easily do
RF test by connecting a RF cable to the RF connector.
2.5 GPIO and Arduino interface
On QN908x DK board, the connectors J4, J5, J6 and J7 provide all GPIO connection
output. And it is also compatible to Arduino board interface. The interface schematic is
shown in Figure 5.

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QN908x
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Figure 5 QN908x DK board GPIO and Arduino interface
2.6 QN908x reset button
The reset button is used to provide hardware reset to the QN908x device. Shown in
Figure 6.
Figure 6 Reset button
2.7 ISP mode jumper
“JP15” is the ISP mode jumper which is used to set QN908x ISP mode. When the jumper
is shorted, the chip mode “PB02” pin is connected to GND and this function is enabled.
When the jumper is open, the ISP mode function is disabled. Shown in Figure 7.
Figure 7 Chip mode jumper
2.8 JTAG interface

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The board provides a SWD/JTAG interface for the usage of external debugger. Shown in
Figure 8.
Figure 8 JTAG interface
2.9 Buttons
As shown in Figure 9 for detailed circuits, the DK board offers three buttons. When using
the buttons “SW1” and “SW2”, the GPIO must be configured as inputs. Logic LOW input
is applied to GPIO when a button is pressed.
Figure 9 Buttons
The button “SW3” is used to reset QN908x chip. Press down the button, QN908x will be
reset.
2.10 LED
The board offers a three colors RGB LED. The connections are shown in Figure 10. The
LED will light up when the corresponding GPIO outputs switch to logic High level. The
control pins of GPIO are QN_PA13, QN_PA25 and QN_PA31. The GPIO QN_PA13 can
work at PWM out mode. So that the brightness of LED can change with PWM pulse
width.

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QN908x
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<DOC_ID> All information provided in this document is subject to legal disclaimers. © NXP Semiconductors N.V. 2014. All rights reserved.
Application note
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27 April 2016
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Figure 10 LED