NXP Semiconductors UM108 Series User manual

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UM108xx
QN9022 mini DK user guide
Rev. 1.0 — 14 June 2016 User manual
Document information
Info Content
Keywords mini DK, J-Link OB, UART, SWD, GPIO, LED, button, power supply,
buzzer
Abstract This user manual describes the features of the QN9022_MINIDK_Vx
board.

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UM108xx All information provided in this document is subject to legal disclaimers. © NXP Semiconductors N.V. 2016. All rights reserved.
User manual Rev. 1.0 — 14 June 2016 2 of 23
Contact information
For more information, please visit: http://www.nxp.com
For sales office addresses, please send an email to: [email protected]
NXP Semiconductors UM108xx
QN9022 mini DK user guide
Revision history
Rev Date Description
v.1 201506013 initial release

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UM108xx All information provided in this document is subject to legal disclaimers. © NXP Semiconductors N.V. 2016. All rights reserved.
User manual Rev. 1.0 — 14 June 2016 3 of 23
NXP Semiconductors UM108xx
QN9022 mini DK user guide
1. Introduction
This user manual describes the hardware details of the QN9022 mini Development Kit
(DK).
1.1 Kit contents
The QN9022 mini development kit includes the following:
•QN9022 mini development board
•QN902x USB dongle
•USB cable
1.2 Additional resource
For additional resources, visit
http://www.nxp.com/products/microcontrollers-and-processors/more-processors/applicati
on-specific-mcus-mpus/bluetooth-low-energy-ble:BLUETOOTH-LOW-ENERGY-BLE
2. Hardware description
The QN9022 mini development 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 J-Link debug, and a GPIO/optional sensor board
connector.
A USB dongle is a Bluetooth device powered by the QN9020. It acts as a master when
communicating with the QN9022.
2.1 Hardware overview
The hardware blocks in the QN9022 mini DK, and the functional relationship of each main
component, are shown in Figure 1.

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UM108xx All information provided in this document is subject to legal disclaimers. © NXP Semiconductors N.V. 2016. All rights reserved.
User manual Rev. 1.0 — 14 June 2016 4 of 23
NXP Semiconductors UM108xx
QN9022 mini DK user guide
The component layout on both the sides of the board is shown in Figure 2 and Figure 3.
The detailed information of each component is listed in Table 1.
Fig 1. The QN9022 functional diagram
Fig 2. The QN9022 board top view

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QN9022 mini DK user guide
Fig 3. The QN9022 board bottom view
Table 1. QN9022 board components list
Number Name Description
1 J-Link OB ATSAM3U2C; used to offer SWD and UART
interfaces for QN9022 debug and communication
2 connector optional; used for connecting sensor board
3 debug port debug port for ATSAM3U2CA
4 mini USB port power and communication port
5 power source select jumper used for power source selection; see Section 2.3
6 current measurement jumper used to measure the QN9022 device power
consumption
7 LDO (TPS73630) 5 V to 3 V regulator
8 button1 used as input; see Section 2.9
9 button2 used as input; see Section 2.9
10 LED2 used as output; see Section 2.8
11 QN9022 GPIO port used for interface extension
12 LED1 used as output; see Section 2.8
13 SWD resistors zero ohm resistors; shorted for QN9022 device
debug
14 UART interface used as communication port for QN9022 device
15 PCB antenna onboard Bluetooth antenna
16 QN9022 chip QN9022 chip
17 QN9022 reset button used for QN9022 hardware reset
18 CR2032 battery holder CR2032 battery holder
19 piezo buzzer buzzer: KLJ-1230
20 jumper used for power cycle ATSAM3U2CA
21 External flash Used for storing application firmware

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User manual Rev. 1.0 — 14 June 2016 6 of 23
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QN9022 mini DK user guide
2.2 Default jumper settings on mini DK board
The jumpers on QN9022 mini DK are factory set to power the board over the USB. The
factory-set jumper and switch settings are shown in Table 2.
2.3 Power supply
The QN9022 board has two power supply modes:
1. Bus-power mode: The board can be powered using the USB cable. The onboard LDO
is used to regulate output voltage to 3 V and supplies power to all parts on the board.
2. Battery-power mode: The CR2032 supplies power to QN9022 and optional sensor
connector when it is in battery-power mode. The J-Link OB still uses the LDO as
power supply via USB cable. When using USB interface as a power supply, connect
the jumper J11 pin 2 and pin 3; see Figure 4.
When using a CR2032 coin cell as a power supply, connect the jumper J11 pin 1 and
pin 2; see Figure 5.
Table 2. QN9022 mini DK board components list
Jumper Pins to be shorted using
jumpers
Function
J11 2 and 3 USB powered
J12 1 and 2 VCC_QN9022 3.3 V
J13 1 and 2 VCC_MB 3.3 V
Fig 4. Connecting jumper J11 pin 2 and pin 3 to select USB as power supply

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User manual Rev. 1.0 — 14 June 2016 7 of 23
NXP Semiconductors UM108xx
QN9022 mini DK user guide
2.4 SEGGER J-Link OB part
The SEGGER J-Link OB offers the SWD and UART interface. Users can download or
update firmware into a QN9022 device by using the UART or SWD interface.
Furthermore, it is convenient to debug the program for a QN9022 device using SWD
interface.
To program or debug the QN9022 device using the SEGGER J-Link OB, the 0 resistors
R37, R38 should be soldered; see Figure 6.
In order to use a USB to UART bridge for the QN9022 download, the solder bridge SB3,
SB4 should be shorted; see Figure 7.
Fig 5. Connecting jumper J11 Pin1 and Pin 2 to select CR2032 coin cell as power supply
Fig 6. Connect R37, R38

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UM108xx All information provided in this document is subject to legal disclaimers. © NXP Semiconductors N.V. 2016. All rights reserved.
User manual Rev. 1.0 — 14 June 2016 8 of 23
NXP Semiconductors UM108xx
QN9022 mini DK user guide
2.5 QN9022 device
The QN9022 device is integrated with a BLE radio, controller, protocol stack and profile
software, and a high performance MCU on a single chip; see Figure 8.
Fig 7. Short R35, R36
Fig 8. The QN9022 device

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User manual Rev. 1.0 — 14 June 2016 9 of 23
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QN9022 mini DK user guide
2.6 GPIO interface
In QN9022 mini development board version V1, the connectors J6 and J7 provide GPIO
connection. The net name is shown in Figure 9.
2.7 QN9022 reset button
The reset button is used to provide hardware reset to the QN9022 device. When
programming the QN9022 using UART interface of SEGGER J-Link OB, the reset button
should be pressed first to ensure that QN9022 is in boot mode. See Figure 10 for the
detailed circuit.
2.8 LED
The QN9022 board offers two programmable LEDs, which are connected to the QN9022
device GPIO.
Fig 9. QN9022 MiniDK version V1 GPIO connections
Fig 10. QN9022 reset

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NXP Semiconductors UM108xx
QN9022 mini DK user guide
LED1 and LED2 are connected to GPIO P0.3 and P1.6 respectively. The connections are
shown in Figure 11. The LEDs are powered-up when the corresponding GPIO outputs
switch to logic LOW level.
2.9 Button
The QN9022 board offers two buttons which are connected to QN9022 device GPIO.
Button 1 and button 2 are connected to GPIO P2.0 and P2.1 respectively. See Figure 12
for detailed circuits.
When using the buttons, the GPIO P2.0 and P2.1 must be configured as inputs. Logic
LOW input is applied to QN9022 when a button is pressed.
Fig 11. LED circuit
Fig 12. Button circuit