UM10895 QN9020 mini DK user guide - NXP … QN9020 mini DK User Guide 3 — 18 April2018...

UM10895 QN9020 mini DK User Guide

Rev. 3 — 18 April 2018 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 QN9020_MINIDK_Vx board.

UM10895 NXP Semiconductors

UM10895

User manual All information provided in this document is subject to legal disclaimers.

Rev. 3 — 18 April 2018 © NXP Semiconductors N.V. 2018. All rights reserved.

2 of 21

QN9020 mini DK user guide

Revision history

Rev Date Description

v.3 20180417 Updated Section 2.5, “QN9020 device”.

v.2 20160524 second release. Modifications: • Section 1.2 “Additional resource” updated. • Figure 5 updated. • Section 2.6 “GPIO interface” updated. • Section 3.1 “Schematics for QN9020 mini DK board” updated.

v.1 20150601 initial release

Contact information For more information, please visit: http://www.nxp.com

For sales office addresses, please send an email to: [email protected]

http://www.nxp.com/

mailto:[email protected]


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1. Introduction

This user manual describes the hardware details of the QN9020 mini Development Kit (DK).

1.1 Kit contents

The QN9020 mini development kit includes the following:

• QN9020 mini development board • QN9020 USB dongle • USB cable

1.2 Additional resource

For additional resources, visit https://www.nxp.com/products/wireless-connectivity/bluetooth-low-energy-ble/ultra-low-power-bluetooth-le-system-on-chip-solution:QN902X.

2. Hardware description

The QN9020 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 QN9020.

2.1 Hardware overview

The hardware blocks in the QN9020 mini DK, and the functional relationship of each main component, are shown in Figure 1.

https://www.nxp.com/products/wireless-connectivity/bluetooth-low-energy-ble/ultra-low-power-bluetooth-le-system-on-chip-solution:QN902X




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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 Ta ble 1.

Fig 2. The QN9020 board top view

GPIO/SENSOR CONNECTOR

GPIO/SENSOR CONNECTOR

OnBoard

ANTENNA

GPIO/SENSOR CONNECTOR RESET

Virtual UART UART USB JLink OB

PORT (ATSAM3U2C) SWD QN9020 RF MATCHING

LED1

POWER LED2

CR2032 BUTTON1 BUTTON2

aaa-018330

Fig 1. The QN9020 functional diagram


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Table 1. QN9020 board components list

Number Name Description

1 J-Link OB ATSAM3U2C; used to offer SWD and UART interfaces for QN9020 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 QN9020 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 QN9020 GPIO port used for interface extension

12 LED1 used as output; see Section 2.8

13 SWD resistors zero ohm resistors; shorted for QN9020 device debug

14 UART interface used as communication port for QN9020 device

15 PCB antenna onboard Bluetooth antenna

16 QN9020 chip QN9020 chip

17 QN9020 reset button used for QN9020 hardware reset

18 CR2032 battery holder CR2032 battery holder

19 piezo buzzer buzzer: KLJ-1230

20 jumper used for power cycle ATSAM3U2CA

Fig 3. The QN9020 board bottom view


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2.2 Default jumper settings on mini DK board The jumpers on QN9020 mini DK are factory set to power the board over the USB. The factory-set jumper and switch settings are shown in Ta ble 2.

Table 2. QN9020 mini DK board components list

Jumper Pins to be shorted using jumpers

Function

J11 2 and 3 USB powered

J12 1 and 2 VCC_QN9020 3.3 V

J13 1 and 2 VCC_MB 3.3 V

2.3 Power supply The QN9020 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 QN9020 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.

Fig 4. Connecting jumper J11 pin 2 and pin 3 to select USB as power supply


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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 QN9020 device by using the UART or SWD interface. Furthermore, it is convenient to debug the program for a QN9020 device using SWD interface.

To program or debug the QN9020 device using the SEGGER J-Link OB, the 0 Ω resistors R37, R38 should be soldered; see Figure 6.

Fig 6. Connect R37, R38

Fig 5. Connecting jumper J11 Pin1 and Pin 2 to select CR2032 coin cell as power supply


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In order to use a USB to UART bridge for the QN9020 download, the solder bridge SB3, SB4 should be shorted; see Figure 7.

2.5 QN9020 device The QN9020 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. There are two versions of the chip in mass production (version D and version E) for QN9020. Check the mark R180315 (version D) on the board to identify the version soldered.

Fig 8. The QN9020 device

Fig 7. Short R35, R36


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J9 J8 P3.0_ADC- P2.1_UART1-TX

J6 J7 P0.1_UART0-CTS P1.1_SPI1-MOSI

S

Fig 9. QN9020 version V7 GPIO connections

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DDD-022820

Fig 10. QN9020 version V8 GPIO connections


2.6 GPIO interface In QN9020 mini development board version V7, the connectors J6, J7, J8 and J9 provide GPIO connection. The net name is shown in Figure 9.

In QN9020 mini development board version V8, connectors J6 and J7 provide GPIO connection, as shown in Figure 10.

2.7 QN9020 reset button The reset button is used to provide hardware reset to the QN9020 device. When programming the QN9020 using UART interface of SEGGER J-Link OB, the reset button should be pressed first to ensure that QN9020 is in boot mode. See Figure 11 for the detailed circuit.

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1 2

3 4

5 6

7 8

9 10

P1.0_SPI1-MISO P1.3_SPI1-CLK P1.2_SPI1-CS

P1.5_PWM P1.4

P1.7_UART0-RX P1.6_PWM

QN_VCC_3.3 V GND

aaa-018338

1 2

3 4

5 6

7 8

9 10

P0.0 UART0-TX P0.3 P0.2 UART0-RT

P0.5 P0.4

SWCLK/TCK SWDIO/TMS

GND QN_VCC_3.3 V

1 2

3 4

5 6

7 8

9 10

P2.0_UART1-RX P2.3_I2C-SDA P2.2

P2.5 P2.4_I2C-SCL

P2.7_PWM P2.6_PWM

QN_VCC_3.3 V GND

1 2

3 4

5 6

7 8

9 10

nRESET P3.2_SPI0-MISO P3.1_ADC+

P3.4_SPI0-CLK P3.3_SPI0-MOSI

P3.6 P3.5_SPI0-CS

GND QN_VCC_3.3 V


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QN_VIO

button 1 1 R15

SW1

2 P1.4

3 100 kΩ

button 2 1 2

3

P1.5 R18

SW2 100 kΩ

aaa-018341

Fig 13. Button circuit


2.8 LED The QN9020 board offers two programmable LEDs, which are connected to the QN9020 device GPIO.

LED1 and LED2 are connected to GPIO P0.4 and P0.5 respectively. The connections are shown in Figure 12. The LEDs are powered-up when the corresponding GPIO outputs switch to logic LOW level.

2.9 Button The QN9020 board offers two buttons which are connected to QN9020 device GPIO. Button 1 and button 2 are connected to GPIO P1.4 and P1.5 respectively. See Figure 13 for detailed circuits.

When using the buttons, the GPIO P1.4 and P1.5 must be configured as inputs. Logic LOW input is applied to QN9020 when a button is pressed.

4

4

QN_VIO

LED1 D2 R20 P0.5

470 Ω

LED2 D3 R21 P0.4

470 Ω aaa-018340

Fig 12. LED circuit

SW3 reset button

nRESET 1 2

aaa-018339

Fig 11. QN9020 reset


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2.10 Piezo buzzer The piezo buzzer receives input from GPIO P2.6; see Figure 14. Refer to KLJ-1230 data sheet for detailed information.

2.11 Optional sensor connector These connectors are used as an interface to connect the sensor board. The pin name definitions are shown in Figure 15.

2.12 Current measurement The jumper J12 is used to measure the QN9020 device current. In current test mode, the digital ammeter should be connected in series with J12. In the other modes, pin 1 and pin 2 of J12 are shorted. A jumper cap is used to short the pins.

QN_VIO QN_VIO

QN_VIO

J5

1

2

3

4

5

6

7

8

9

10

11

12

J10

1

2

3

4

5

P3.0_ADC-

P3.1_ADC+

P3.6

P2.3_I2C-SDA

P2.4_I2C-SCL

6

7

8

9

10

11

12

R16 P0.3

P0.4

P0.5

P3.3_SPIO-MOSI

P3.5_SPIO-CS

GND aaa-018343

Fig 15. Connecting the sensor board

B1

P2.6_PWM 1 2

buzzer aaa-018342

Fig 14. Piezo buzzer circuit


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3. Appendix - Schematics and PCB layout

3.1 Schematics for QN9020 mini DK board

QN9020 mini DK board schematics have three parts: J-Link, power and QN9020. Figure 16, Figure 17 and Figure 18 are the same for all versions. The QN9020 schematic in version V7 is shown in Figure 19. In version V8, it is shown in Figure 20.

C22

0.1 μF R12

6.8 kΩ

C21

10 pF U1

100 99 98 97 96 95 94 93 92 91 90 89 88 87 86 85 84 83 82 81 80 79 78 77 76 MB_VCC_3.3V

TCKin

RTCKi

VCORE TDlin

TMSin

TCKout

TMSout

TDIout

TDOin ENSPI

MB_VCC_3.3V

TCKout

VDDANA ADVREF

GNDANA

AD12BVREF

PA22

PA30

PB3

PB4

VDDCORE1

PA13

PA14

PA15 PA16 PA17

PB16 PB15

PA18 PA19 PA20 PA21 PA23

VDDIO1

PA24

PA25 PA26

1 2

3 4

5

6

7

8 9

10

11

12 13

14

15 16

17

18

19 20

21

22

23 24

25

ATSAM3U2CA

75 74

73 72

71

70

69

68 67

66

65

64 63

62

61 60

59

58

57

56

55 54

53

52

51

XIN

XOUT

VDDPLL

GNDPLL

PB9

PB10 PB14 PB17

PB18 PB19 PB20 PB21 PB22

PB23

GND3 VDDIO3

VDDCORE3 PB24

XIN XOUT

VCORE

C20 0.1 μF

MB_VCC_3.3V

VCORE

NRST

TCK TMS TDO VDDIN

VDDOUT

PI_RST PI_TCK PI_TMS

PI_TDO

MB_VCC_3.3V

VCORE TDI

PI_TDI 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50

SB5 SB6 C17

10 μF C18 C19 10 μF 0.1 μF

C16

10 nF

R19 1 kΩ

aaa-018546

Fig 16. J-Link schematic for all QN9020 mini DK versions, part I

PA

0 P

A1

PA

2

PA

3

PA

4

PA

5

PA

6

PA

7

VD

DC

OR

E2

GN

D2

VD

DIO

2

PA

8

PA

9

PA

10

PA

11

PA

12

FWV

P

ER

AS

E

TST

VD

DB

U

GN

DB

U

NR

STB

JTA

GS

EL

XO

UT3

2

XIN

32

PB

8 TR

STi

n

TRS

Tout

P

B7

PB

6

PB

5

PA

27

PB

13

PB

12

PB

11

PB

2

PB

1

PB

0

GN

D4

VD

DIO

4

VD

DC

OR

E4

PA

31

PA

29

PA

28

VD

DC

OR

E

GN

DU

TMI

DFS

DP

D

FSD

M

VD

DU

TMI

VB

G

DH

SD

M

DH

SD

P

EN

SP

I

TRE

Sin

TRE

Sou

t

RX

Dat

a

TXD

ata

VC

OR

E

MB

_VC

C_3

.3V

CTS

RTS

RX

0

TX0

MB

_VC

C_3

.3V

MB

_VC

C_3

.3V

VC

OR

E

LED

_RE

D1

LED

_RE

D2

VC

OR

E

TP1

MB

_VC

C_3

.3V

D

FSD

P

DFS

DM

MB

_VC

C_3

.3V

DH

SD

M

DH

SD

P

LED_RED1 D1 LED4 R13 MB_VCC_3.3V

220 Ω

LED_RED2 D1 LED4 R14 MB_VCC_3.3V

220 Ω XOUT

C2 18 pF

3 2

Y1 12 MΩ

C3 18 pF 4 1

XIN

JTAG interface to QN9020

R6 T_TRST TRSTout

0 Ω

TRSTin R9 T_TDI

TDIout 0 Ω

TDIin J2 R7 T_TMS SWDIO/TMS

TMSout SWDIO/TMS 150 Ω jump

TMSin J3 R8 T_TCK SWCLK/TCK

TCKout SWCLK/TCK 150 Ω jump

TCKin T_RTCK

RTCKin T_TDO

TDOin R10 T_RESET R11

TRESout nRESET 0 Ω 0 Ω

TRESin

MB_VCC_3.3V ATSAM3U2CA programming

interface

R5 R2 R3 R4 4.7 kΩ 4.7 kΩ 4.7 kΩ 4.7 kΩ

MB_VCC_3.3V PI_TMS

GND PI_TCK

VS

J4

1

2

PI_RST 10 9

PI_TDI 3 CON10C 8

4 5

7 6

PI_TDO

CTS

UART interface to QN9020 SB1

P0.2_UART0-RTS R26 0 Ω RTS

solder_bridge

SB2 P0.1_UART0-CTS

RXD

solder_bridge

SB3 P0.0_UART0-TX

TXD

solder_bridge

S P1.7_UART0-RX solder_bridg

MB_VCC_3.3V VCORE

C5 0.1 μF

C7 0.1 μF

C9 0.1 μF

C11 0.1 μF

C13 0.1 μF

C15 0.1 μF

C6 C8 C10 C12 C14 0.1 μF 0.1 μF 0.1 μF 0.1 μF 0.1 μF

MB_VCC_3.3V MB_VCC_3.3V

GND GND

VS VS

VBUS VBUS

R29 DFSON

VBUS 39 Ω 1 %

J1 S4

9 R28 S1

6 DFSOP

S3

1 2

3

4

5

7

V D- D+ ID G S2

39 Ω 1 %

DHSON DHSOP

IO2 U5

3 IO1 2

R30 8

VCC GND 4 1

1 MΩ miniusb_typeB PRTR5VOU2X

C36 C24

1 nF 0.1 μF

C23

10 μF

aaa-018344

Fig 17. J-Link schematic for all QN9020 mini DK versions, part II

UM

10895 Q

N9020 m

ini DK

user guide

NXP Sem

iconductors

UM

10895

User m

anual All inform

ation provided in this document is subject to legal disclaim

ers.

Rev. 2 — 24 M

ay 2016 ©

NXP Sem

iconductors N.V. 2016. All rights reserved.

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UM10895 All information provided in this document is subject to legal disclaimers. © NXP Semiconductors N.V. 2016. All rights reserved.

User manual Rev. 2 — 24 May 2016 14 of 21

U2 V5

J13 VBUS

VIN 1 5

VOUT MB_VCC_3.3V

R25 0 Ω

GND 2 TPS73633 C29

0.1 μF

C30 10 μF 16 V

JUMP2

TP2 EN

3 NR/FB C26

4 10 nF

J11 R24

GND GND QN_VIO

3 2

1 JUMP3

0 Ω BAT1

1 J12

2 QN_VCC_3.3V JUMP2

3 QN current test

battery Note: connect jumper J11 PIN2, 3 LDO as a power supply connect jumper J11 PIN1, 2 battery as a power supply aaa-018345

Fig 18. Power schematic for all mini DK versions

1 36

QN9020 GPIO

J6 P0.1_UART0-CTS

J7 P1.1_SPI1-MOSI

J8 P2.1_UART1-TX

J9 P3.0_ADC-

button 1

SW1

QN_VIO

BUZZER

1

SW2

SW3

2 P1.5_PWM R18

3 100 kΩ

RESET BUTTON reset button

1 2 nRESET

buzzer

aaa-018346

Fig 19. QN9020 schematic in QN9020 mini DK board V7 and below

J10 CONNECTOR FOR SENSOR BOARD

C37

100 nF

GND

13 14 15 16 17 18 19 20 21 22 23 24

P2.4_I2C-SCL P2_4 25 12 VSS1

P2.3_I2C-SDA P2_3 26 11 P0_0 P0.0_UART0-TX

C41 1 μF

P2.2 P2_2 27 10 P0_1 P0.1_UART0-CTS

P2.1_UART1-TX P2_1 28 9 P0_2 P0.2_UART0-RTS

nRESET nRESET RSTN 31 U6 QN9020

6 P0_5 P0.5 22 pF

C40 SWDIO/TMS 1.5 pF L1 1.1 nH

A1 antenna

C44 49 48 47 46 45 44 43 42 41 40 39 38 37 VCC VDD2

C38

C48

1 μF

QN_VCC_3.3 V QN_VCC_3.3 V QN9020 device

Y3 16 M

L5 15 nH L4 C43 10 μH

100 nF

R32

56 kΩ

100 nF SWCLK/TCK

P0_7 C46 VSS2 100 nF 2 35

L3

2.0 nH P0_6 RFP

3 34 XTAL2_32K RFN

22 pF Y2 32.768 kHz XTAL1_32K

4 33 L2

6.2 nH RVDD

C45 5 32

P0.4 P0_4

7 P0_3

P3_6 30

P2_0

C39 C42 C47 2.2 nF 8.2 pF 1.0 pF

P3.6

P0.3 8 29 P2.0_UART1-RX R31 100 kΩ

GND

USER LED

LED1 D2 R20 P0.5

470 Ω

LED2 D3 R21 P0.4

470 Ω

QN_VIO QN_VIO

J5 1 2 3 4 5 6

7 8 9 10 11 12

QN_VIO 1 2 3 4 5 6

7 8 9

10 11 12

P3.0_ADC- P3.1_ADC+ P3.6 P2.3_I2C-SDA P2.4_I2C-SCL

R16 0 Ω R17

0 Ω

P0.3 P0.4 P0.5 P3.3_SPIO-MOSI P3.5_SPIO-CS GND

UM

10895 Q

N9020 m

ini DK

user guide

NXP Sem

iconductors

UM

10895

User m

anual All inform


ers.

Rev. 2 — 24 M

ay 2016 ©

NXP Sem


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GN

D

VDD

1 D

CC

P1

.7_U

ART0

-RX

P1

_7

VSS3

P3_0

P1

_6

P1.6

_PW

M

P3.0

_AD

C-

P1_5

P1

.5_P

WM

P3

_1

P3.1

_AD

C+

P1_4

P1

.4

P3_2

P3

.2_S

PIO

MIS

O

P1_3

P1

.3_S

PI1-

CLK

P3

_3

P3.3

_SPI

OM

OSI

P1

_2

P1.2

_SPI

1-C

S P3

_4

P3.4

_SPI

OC

LK

P1_1

P1

.1_S

PI1-

MO

SI

P3_5

P3

.5_S

PIO

CS

P1

_0

P1.0

_SPI

1-M

ISO

XT

AL1

P2_7

P2

.7_P

WM

XT

AL2

P2_6

P2

.6_P

WM

VD

D3

P2_5

P2

.5

REX

T

1 2

3 4

5 6

7 8

9 10

P0.0 UART0-TX P0.3 P0.2 UART0-RTS

P0.5 P0.4

SWCLK/TCK SWDIO/TMS

GND QN_VCC_3.3 V

1 2

3 4

5 6

7 8

9 10

P1.0_SPI1-MISO P1.3_SPI1-CLK P1.2_SPI1-CS

P1.5_PWM P1.4

P1.7_UART0-RX P1.6_PWM

QN_VCC_3.3 V GND

1 2

3 4

5 6

7 8

9 10

P2.0_UART1-RX P2.3_I2C-SDA P2.2

P2.5 P2.4_I2C-SCL

P2.7_PWM P2.6_PWM

QN_VCC_3.3 V GND

1 2

3 4

5 6

7 8

9 10

nRESET P3.2_SPI0-MISO P3.1_ADC+

P3.4_SPI0-CLK P3.3_SPI0-MOSI

P3.6 P3.5_SPI0-CS

GND QN_VCC_3.3 V

4 4

P2.6_PWM 1

2

1 36

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Fig 20. QN9020 schematic in QN9020 mini DK board V8

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J10

P0.0-P0.7 P3.0-P3.6

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4. Abbreviations

Table 3. Abbreviations

Acronym Description

UART Universal Asynchronous Receiver Transmitter

DK Development Kit

LDO Low DropOut

SWD Serial Wire Debug

PCB Printed-Circuit Board

BLE Bluetooth Low Energy

MCU MicroController Unit

GPIO General Purpose Input Output

ISP In System Programming

USB Universal Serial Bus

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5. Legal information

5.1 Definitions Draft — The document is a draft version only. The content is still under internal review and subject to formal approval, which may result in modifications or additions. NXP Semiconductors does not give any representations or warranties as to the accuracy or completeness of information included herein and shall have no liability for the consequences of use of such information.

5.2 Disclaimers Limited warranty and liability — Information in this document is believed to be accurate and reliable. However, NXP Semiconductors does not give any representations or warranties, expressed or implied, as to the accuracy or completeness of such information and shall have no liability for the consequences of use of such information. NXP Semiconductors takes no responsibility for the content in this document if provided by an information source outside of NXP Semiconductors.

In no event shall NXP Semiconductors be liable for any indirect, incidental, punitive, special or consequential damages (including - without limitation - lost profits, lost savings, business interruption, costs related to the removal or replacement of any products or rework charges) whether or not such damages are based on tort (including negligence), warranty, breach of contract or any other legal theory.

Notwithstanding any damages that customer might incur for any reason whatsoever, NXP Semiconductors’ aggregate and cumulative liability towards customer for the products described herein shall be limited in accordance with the Terms and conditions of commercial sale of NXP Semiconductors.

Right to make changes — NXP Semiconductors reserves the right to make changes to information published in this document, including without limitation specifications and product descriptions, at any time and without notice. This document supersedes and replaces all information supplied prior to the publication hereof.

Suitability for use — NXP Semiconductors products are not designed, authorized or warranted to be suitable for use in life support, life-critical or safety-critical systems or equipment, nor in applications where failure or malfunction of an NXP Semiconductors product can reasonably be expected to result in personal injury, death or severe property or environmental damage. NXP Semiconductors and its suppliers accept no liability for inclusion and/or use of NXP Semiconductors products in such equipment or applications and therefore such inclusion and/or use is at the customer’s own risk.

Applications — Applications that are described herein for any of these products are for illustrative purposes only. NXP Semiconductors makes no representation or warranty that such applications will be suitable for the specified use without further testing or modification.

Customers are responsible for the design and operation of their applications and products using NXP Semiconductors products, and NXP Semiconductors accepts no liability for any assistance with applications or customer product

design. It is customer’s sole responsibility to determine whether the NXP Semiconductors product is suitable and fit for the customer’s applications and products planned, as well as for the planned application and use of customer’s third party customer(s). Customers should provide appropriate design and operating safeguards to minimize the risks associated with their applications and products.

NXP Semiconductors does not accept any liability related to any default, damage, costs or problem which is based on any weakness or default in the customer’s applications or products, or the application or use by customer’s third party customer(s). Customer is responsible for doing all necessary testing for the customer’s applications and products using NXP Semiconductors products in order to avoid a default of the applications and the products or of the application or use by customer’s third party customer(s). NXP does not accept any liability in this respect.

Export control — This document as well as the item(s) described herein may be subject to export control regulations. Export might require a prior authorization from competent authorities.

Evaluation products — This product is provided on an “as is” and “with all faults” basis for evaluation purposes only. NXP Semiconductors, its affiliates and their suppliers expressly disclaim all warranties, whether express, implied or statutory, including but not limited to the implied warranties of non-infringement, merchantability and fitness for a particular purpose. The entire risk as to the quality, or arising out of the use or performance, of this product remains with customer.

In no event shall NXP Semiconductors, its affiliates or their suppliers be liable to customer for any special, indirect, consequential, punitive or incidental damages (including without limitation damages for loss of business, business interruption, loss of use, loss of data or information, and the like) arising out the use of or inability to use the product, whether or not based on tort (including negligence), strict liability, breach of contract, breach of warranty or any other theory, even if advised of the possibility of such damages.

Notwithstanding any damages that customer might incur for any reason whatsoever (including without limitation, all damages referenced above and all direct or general damages), the entire liability of NXP Semiconductors, its affiliates and their suppliers and customer’s exclusive remedy for all of the foregoing shall be limited to actual damages incurred by customer based on reasonable reliance up to the greater of the amount actually paid by customer for the product or five dollars (US$5.00). The foregoing limitations, exclusions and disclaimers shall apply to the maximum extent permitted by applicable law, even if any remedy fails of its essential purpose.

Translations — A non-English (translated) version of a document is for reference only. The English version shall prevail in case of any discrepancy between the translated and English versions.

5.3 Trademarks Notice: All referenced brands, product names, service names and trademarks are the property of their respective owners.


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6. Tables

Table 1. QN9020 board components list .......................... 5 Table 2. QN9020 mini DK board components list ............. 6

Table 3. Abbreviations .................................................... 18

7. Figures

Fig 1. The QN9020 functional diagram ........................... 4 Fig 2. The QN9020 board top view ................................. 4 Fig 3. The QN9020 board bottom view ............................ 5 Fig 4. Connecting jumper J11 pin 2 and pin 3

to select USB as power supply .............................. 6 Fig 5. Connecting jumper J11 Pin1 and Pin 2 to select

CR2032 coin cell as power supply ........................ 7 Fig 6. Connect R37, R38 ................................................. 7 Fig 7. Short R35, R36 ..................................................... 8 Fig 8. The QN9020 device ............................................... 8 Fig 9. QN9020 version V7 GPIO connections .................. 9 Fig 10. QN9020 version V8 GPIO connections .................. 9 Fig 11. QN9020 reset ...................................................... 10 Fig 12. LED circuit ........................................................... 10 Fig 13. Button circuit ........................................................ 10 Fig 14. Piezo buzzer circuit ............................................. 11 Fig 15. Connecting the sensor board ............................... 11 Fig 16. J-Link schematic for all QN9020 mini DK

versions, part I ..................................................... 12 Fig 17. J-Link schematic for all QN9020 mini DK

versions, part II .................................................... 13 Fig 18. Power schematic for all mini DK versions ............ 14 Fig 19. QN9020 schematic in QN9020 mini DK

board V7 and below ............................................ 15 Fig 20. QN9020 schematic in QN9020 mini DK

board V8 .............................................................. 16 Fig 21. Silk screen top ..................................................... 17 Fig 22. Silk screen bottom ............................................... 18



8. Contents

1

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3

1.1 Kit contents. . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 1.2 Additional resource. . . . . . . . . . . . . . . . . . . . . . 3 2 Hardware description . . . . . . . . . . . . . . . . . . . . 3 2.1 Hardware overview. . . . . . . . . . . . . . . . . . . . . . 3 2.2 Default jumper settings on mini DK board . . . . 6 2.3 Power supply . . . . . . . . . . . . . . . . . . . . . . . . . . 6 2.4 SEGGER J-Link OB part . . . . . . . . . . . . . . . . . 7 2.5 QN9020 device. . . . . . . . . . . . . . . . . . . . . . . . . 8 2.6 GPIO interface . . . . . . . . . . . . . . . . . . . . . . . . . 9 2.7 QN9020 reset button . . . . . . . . . . . . . . . . . . . . 9 2.8 LED. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 2.9 Button . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 2.10 Piezo buzzer. . . . . . . . . . . . . . . . . . . . . . . . . . 11 2.11 Optional sensor connector . . . . . . . . . . . . . . . 11 2.12 Current measurement. . . . . . . . . . . . . . . . . . . 11 3 Appendix - Schematics and PCB layout . . . . 12 3.1 Schematics for QN9020 mini DK board . . . . . 12 3.2 PCB layout . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 4 Abbreviations. . . . . . . . . . . . . . . . . . . . . . . . . . 18 5 Legal information. . . . . . . . . . . . . . . . . . . . . . . 19 5.1 Definitions. . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 5.2 Disclaimers . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 5.3 Trademarks. . . . . . . . . . . . . . . . . . . . . . . . . . . 19 6 Tables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 7 Figures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 8 Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

Please be aware that important notices concerning this document and the product(s) described herein, have been included in section ‘Legal information’.

© NXP Semiconductors N.V. 2018. All rights reserved. For more information, please visit: http://www.nxp.com For sales office addresses, please send an email to: [email protected]

Date of release: April 2018 Document identifier: UM10895

http://www.nxp.com/

mailto:[email protected]

UM10895 QN9020 mini DK user guide - NXP … QN9020 mini DK User Guide 3 — 18 April2018...

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