NXP Semiconductors IOTZTB-DK006 User manual

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IOTZTB-DK006 Development Kit User Guide
Rev.3.0 —9 March 2021
Document information
Info
Content
Keywords
IOTZTB DK, User Guide
Abstract
This document is a user guide for the IOTZTB Development Kit

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Contact information
For more information, please visit: http://www.nxp.com
Revision history
Rev
Date
Description
1V0
20200420
Initial release
2V0
20200914
Second version
3V0
20210309
Third version –Added support for K32W041AM and K32W041A

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1. Introduction
IOTZTB-DK006 is designed for evaluation and development of K32W061, K32W041AM,
K32W041A and JN5189 devices to conveniently evaluate the devices functions and
performance. There are also some useful peripherals, like GPIOs, and Arduino interface.
J-Link and J-Trace functions are all supported for debugging the devices. ISP download
function is also contained and very easy to use.
1.1 Purpose
This document introduces all functions of IOTZTB-DK006 and describes all parts of
IOTZTB-DK006 boards in detail.
1.2 Kit contents
IOTZTB-DK006 includes the following boards:
•Carrier Main Board (3)
•K32W061 upgrade module board (3)
•JN5189 upgrade module Board (3)
•K32W061 USB Dongle
•Generic expansion board
•Lighting expansion board
•Not included in the Kit, sold separately: K32W041A and K32W041AM upgrade
module boards
Figure 1 Board overview

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2. Carrier Main Board
The OM15076 also called DK6 carrier main board provides a flexible development
system for NXP’s K32W061, K32W041, K32W041AM, K32W041A and JN5189/88(T)
ultra-low power, high performance wireless microcontrollers. It can be used with a wide
range of development tools, including NXP’s MCUXpresso IDE. It has been developed
by NXP to enable evaluation and prototyping with the JN518x and K32W0x IEEE
802.15.4 and Bluetooth LE 5.0 wireless microcontrollers.
The three carrier boards supplied in the development kit are physically identical. They
are all pre-fitted with an Arduino-compatible expansion board and a K32W061/041-based
module board with integrated antenna.
2.1 Feature summary
The carrier main board includes the following features:
•K32W061/041 upgrade module site
•NFC Tag with printed antenna
•On-board, high-speed USB based, Link2 debug probe with ARM’s CMSIS-DAP
and SEGGER J-Link protocol options.
•Link2 probe can be used with on-board K32W061/041 or external target.
•Support for external debug probes.
•Power, Reset, ISP and UART Tx/Rx LEDs.
•Target Reset, and User buttons.
•Expansion options based on Arduino R3, plus additional expansion port pins.
•On-board 3.3V from USB port, 4xAAA batteries, 2xAAA batteries (low-power
mode) or external power supply options.
Figure 2 Carrier Main Board

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•Built-in power consumption measurement.
•UART, I2C and SPI port bridging from LPC4233 target to USB via the on-board
debug probe.
•8MB Macronix MX25R QSPI flash.
•FTDI USB connector.
2.2 Board layout and settings
This section provides a quick reference guide to the main board components,
configurable items, visual indicators and expansion connectors. The layout of the
components on the OM15076 Carrier Main Board is shown in Figure 3.
The function of each identified component is listed in Table 1
Table 1. Table Board interface components
Circuit ref
Description
D1
Link2 LPC4322 BOOT0_LED indicator. Reflects the state of LPC43xx Link2 MCU
P1_1. When the boot process fails, D1 will toggle at a 1 Hz rate for 60 seconds.
After 60 seconds, the LPC4322 is reset.
DS1
K32W061/041 Power LED
DS2,
DS3
2x Red debug LEDs connected respectively to K32W061/041 PIO_0 (DS2) and
PIO_3 (DS3). LEDs are on anytime the PIO is low.
DS4
K32W061/041 Reset LED –LED is on anytime the Target RESET is pulled low.
DS5,
DS6
Green LEDs connected respectively to UART0_Tx (DS5) and UART0_Rx (DS6).
DS8
In System Programming (ISP) LED indicator. LED is ON when SW2 button is
pressed.
IC2
Link2 MCU
Figure 3 Carrier board layout

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J2
FTDI serial header. In addition to provide a serial output from K32W061/041, the
Target side of the board can be powered from the FTDI header. The
K32W061/041 supports serial ISP boot from the FTDI header.
J3
32 pins Expansion header connector for debug. All the K32W061/41/041 IOs from
modules and more are available here.
J14
K32W061/041 VBAT current monitor V sense measurement. The V sense can be
measured with a volt meter. Pin 1 (square pad) is positive and pin 2 is negative.
K32W061/041 current is calculated by dividing the measured voltage at J14 by the
V sense resistance value of 3.3Ω.
J15
Link2 mini USB B-type connector. Powers both the Link2 side of the board and
depending on the JP3, J5 configuration, the K32W061/041 Target side of the
board. Power the board from this connector when using the on-board debug probe
to debug the K32W061/041 Target MCU.
JP1
K32W061/041 Target SWD disable –2-position jumper pins.
1. Jumper “ON” (default) the K32W061/041 Target SWD interface enabled.
Normal operating mode where the Target SWD is connected to either the
on-board
2. Link2 debug probe or an external debug probe. Jumper “OFF”, the
K32W061/041 Target SWD interface is disabled. Use this setting only
when the on-board Link2 debug probe is used to debug an off-board
Target K32W061/041.
JP2
SWD interface buffer power selection
JP3
K32W061/041 power source selection
1. Jumper fitted in position pin 1 - 2 (default -5V REG). Power source is
either 5V from mini USB connector or FTDI connector, or 4.5V from
3xAAA batteries or 5V from a 7-12V DC power supply connected on J4.
2. Jumper fitted in position pin 2 - 3 (BAT 6V). Power source is 4xAAA
batteries.
See details on Board power diagram Figure 5
JP4
Jumper to route LPC or FTDI to UART RX0 K32W061/041 (to change in pair with
JP7)
JP5
Link2 (LPC4322) force DFU boot –2 position jumper pins.
1. Jumper open (default) or shunted to boot mode for Link2 to follow the
normal boot sequence. The Link2 will boot from internal flash if image is
found there. With the internal flash erased the Link2 normal boot
sequence will fall through to DFU boot.
2. Jumper shunted to force the Link2 to DFU boot mode. Use this setting to
reprogram the Link2 internal flash with a new image or to use the
MCUXpresso IDE with CMSIS-DAP protocol.
JP6
JP6 is used to isolate the Link2 debug probe (SPI bridge function) from the
K32W061/041 target to prevent leakage current in power critical applications /
current consumption analysis. JP6 needs to be fitted in position 1 - 2 to use the
SPI bridging function between the K32W061/041 and Link2. This jumper is not
fitted by default
JP7
Jumper to shunt LPC to K32W061/041 or FTDI to UART TX0 K32W061/041 (to
change in pair with JP4)
CN1,
CN2,
CN3,
CN4
Expansion connectors, including Arduino Uno rev3 compatible connectivity.
JM1,
JM2
K32W061/041 module headers
P1
10-pin SWD connector –The SWD connector is used to debug the K32W061/041
Target from an external debug probe. The same SWD connector can also be used
to connect the on-board Link2 debug probe to an off-board target MCU (for this
JP1 must be shunted).
BP1
User Interface button connected to IO1. Used in some Applications Notes.

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SW2
In System Programming (ISP) button. K32W061/041 will enter ISP mode when
SW2 is pressed during hardware reset.
SW4
K32W061/041 Reset pushbutton.
To ease the board usage and any debug the connectors serigraphy is also copied on PCB bottom.
J7, J13, J12 & J11 battery slots are also here.
2.3 LED indicators
The DK6 board LED location are shown in Figure 3. A description of each on-board LED
indicator is shown in next table.
Table 2. LED indicator functions
LED reference
Description
D1
Link2 MCU BOOT0_LED indicator. Reflects the state of Link2 MCU
P1_1. When the boot process fails, D1 will toggle at a 1 Hz rate for 60
seconds. After 60 seconds, the Link2 MCU is reset. It will be ON when
the Link2 MCU is Booting using DFU (See description for JP5).
DS1
K32W061/041 Power LED. This LED is on any time power is applied to
the K32W061/041 wireless MCU.
DS2, DS3
2x Red debug LEDs connected respectively to K32W061/041 PIO_0
(DS2) and PIO_3 (DS3). LEDs are on anytime the respective PIOs from
the K32W061/041 are pulled low.
DS4
K32W061/041 Reset LED –LED is on anytime the Target RESET is
pulled low.
DS5, DS6
2x Green LEDs connected respectively to UART0_Tx (DS5) and
UART0_Rx (DS6). LEDs will flash any time there is activity on the
UART0.
DS8
In System Programming (ISP) LED indicator. LED is ON when IO5_ISP
is pulled low and when SW2 button is pressed.
Figure 4 OM15076 DK6 PCB bottom view

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2.4 ARDUINO connectors
ARDUINO compatible connectors are based on Arduino R3.
References on the DK6 board are CN1, CN2, CN3, CN4.
The Generic expansion board OM15082 can be plugged into these connectors.
2.5 Buttons
2.5.1 Reset button
This button (SW4) is used to reset the K32W061/041 (note that the Link2 is NOT reset by
this button)
2.5.2 ISP button
This button connects the K32W061/041_PIO5 (ISP_Entry) pin to ground. This should be
used to set the K32W061/041 in ISP mode to program a binary file into the chip memory.
To force entry into this ISP mode, hold down the ISP button (SW2), press and release
the Reset button (SW4), then release the ISP button (SW2). This is done automatically
when using the DK6 Production Flash programmer with J2 (FTDI USB interface).
2.6 User Interface button
This button (BP1) is connected to K32W061/041_PIO_1 and should be used as an input.
2.7 K32W061/041 Serial port
The K32W061/041 UART0 can also be connected through a virtual communication port
(VCOM) UART bridge Link2 function either to a host computer connected to the J2 USB
FTDI or to J15 USB Link2. By default, the DK 6 is configured to use the FTDI USB.
For Link2 USB: The factory default CMSIS-DAP Link2 image includes UART bridge
functionality (VCOM support), and this firmware is also available with the LPCScrypt
utility, available at https://www.nxp.com/design/microcontrollers-developer-resources/lpc-
microcontroller-utilities:LPC-UTILITIES power connections and measurements.
For the USB FTDI, the PC driver is available on FTDI website (the FTDI chip is already
configured before the carrier board release).
2.8 Board power connections
A block diagram of the board power tree is shown in Figure 5. When the K32W061/041
Target is to be debugged from the on board Link2 probe, the USB mini B-type connector
(J15) must connected to a Host computer. When the K32W061/041 Target is to be
debugged from an external debug probe, instead of the on-board debug probe, the Link
USB connector (J15) must be disconnected.

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The K32W061/041 Target VBAT selection is made at JP3, J5, with 3.3V from on-board
LDO set as the default.
2.9 Debug Configurations
The DK6 board has a built-in debug probe referred to as “Link2”. The K32W061/041
target wireless MCU can be debugged by the Link2 debugging probe, or from an external
debug probe installed at P1. On-board jumpers JP1 and JP2 must be correctly positioned
for each mode. The on-board Link2 debug probe is capable of debugging target MCU’s
with a VDDIO range of 1.6V to 3.6V. Check the sections below for the appropriate jumper
settings and how to properly power the board.
2.9.1 Debug using on-board debug probe
To use the on-board Link debug probe:
•The jumper JP2 must be fitted in position pin 1 - 2 (Local Target).
•Jumper JP1 must be open or fitted in position 2 –3 to enable the target
K32W061/041.
•Connecting the mini USB J15 to a host computer will power the Link and
according JP3, JP5 position, the K32W061/041 sections of the board and
provide the USB link to the debug tool software.
2.9.2 Debug using external debug probe
To use an external debug probe:
•connect the probe to the SWD (P1) connector
•power the K32W061/041 Target section of the board from the FTDI header
(J1) or the Jack connector (J4)
•and fit a jumper to JP2 across pin 1 - 2 (Local Target).
•Jumper JP1 must be open or fitted across pin 2 –3 to enable the target
Figure 5 Board power diagram

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K32W061/041.
•The on-board Link2 debug probe must be unpowered, by leaving USB mini
(J15) unconnected.
2.9.3 On-Board Link2 flash programming
To program the Link2 Flash the Link2 MCU must be in DFU mode. If the Link2 already
has a valid image in the flash, you will need to force it into DFU mode by placing a
jumper shunt on JP5 across pin 1 - 2, then power the board by connecting the mini USB
J15 to a host computer. Link2 MCU programming is performed using the LPCScrypt
utility (see https://www.nxp.com/design/microcontrollers-developer-resources/lpc-
microcontroller-utilities:LPC-UTILITIES). Instructions for using the tool are located at the
same web page.
2.9.4 Using the DK6 to debug an off-board target
The DK6 board’s Link2 debug probe may be used to debug an off-board target MCU.
The on-board Link2 debug probe is capable of debugging target MCU’s with a VDDIO
range of 1.6V to 3.6V. To keep the on-board target K32W061/041 MCU from interfering
with the SWD interface:
•JP1 must be fitted across pin 1 - 2.
•The Link2 debug probe SWD is connected by a ribbon cable between the
P1 connector to the off-board target MCU SWD interface.
•Power the DK6 board from the Link USB connector J15,
•Fit jumper JP2 across pins 2 - 3 (External Target).

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3. K32W061/041 Upgrade Module Boards
K32W061 upgrade module board is the K32W061 minimum system board. The module
should be mounted to carrier board as the target. There is a RF connector on this board,
which can be used to RF signal testing.
4. JN5189 Upgrade Module Board
The JN5189 upgrade Module board is identical to the K32W061 upgrade module board
but with a JN5189 device fitted.
5. K32W061AM/A Upgrade Module Boards
K32W041AM and K32W041A upgrade module boards can be mounted on the DK6
board as the target.
The difference between K32W041A and K32W041AM upgrade module boards is that
some resistors are put as N.C. on K32W041AM board and as 0 Ohm on the K32W041A
board to enable external Flash memory. Please refer to the schematic on the next figure
for details.
Figure 6 K32W061 module board
Figure 7 K32W041AM upgrade module board

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Note that in K32W041AM upgrade module board design, PIO20 is reserved for flash
reset testing, for customer applications it’s not needed and could be connected out as a
GPIO with a 0 Ohm resistor.
Figure 8 K32W041AM schematics view
6. Generic expansion board
This expansion board is available in the development kit and is compatible with Arduino
shields. They are supplied pre-fitted with Arduino-compatible header of Carrier Boards in
the development kit.
The Generic Expansion Board has the following features:
•Arduino-compatible expansion header (in four parts, CN1-CN4)
•4 user-input buttons (SW1, SW2, SW3, SW4) connected to DIOs on
the K32W061/041 upgrade module board on the Carrier Board:
oSW1 is connected to IO19
oSW2 is connected to IO15
oSW3 is connected to IO7
oSW4 is connected to IO4
•4 LEDs (D1, D2, D3, D4) connected to DIOs on the K32W061/041
upgrade module board on the Carrier Board:
oD1 is connected to IO16

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oD2 is connected to IO6 (same as for the PWM output used
on the Lighting/Sensor Expansion Board to drive the three
white LEDs)
oD3 is connected to IO3
oD4 is an optional LED which is not fitted on the supplied
board and shares IO4 with button SW1
•Potentiometer connected to K32W061/041 ADC0, with a 0-1.8V DC
voltage swing
•Infrared Emitting LED Vishay VSMB2948SL connected to
K32W061/041 IO20_IR_Blaster
•USB Mini B port to provide access to K32W061/041 UART1 via IO11
and IO10 of K32W061/041 module (connected via FTDI FT230X driver
device)
•PCB pads for 4-way GPIO header (3V3, VCC, IO11, IO10), where
IO11 and IO10 can be used to access K32W061/041 UART1 (in this
case, the FTDI driver chip for the USB port must be isolated by
removing resistors R9 and R16).
Figure 9 Generic expansion board

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7. Light expansion board
This expansion board is available in the development kit and is compatible with Arduino
shields. They are supplied pre-fitted with Arduino-compatible header of Carrier Boards in
the development kit.
The Generic Expansion Board has the following features:
•Arduino-compatible expansion header (in four parts, CN1-CN4)
•3 White LEDs (D1, D2, D3) connected to IO6 on the module on the
Carrier Board:
oD4 is an optional LED which is not fitted on the supplied
board and shares IO4 with button SW1
•RGB LED controlled by I2C
•2 Digital Microphones connected to DMIC interface in the module
•1 Temperature Sensor (IC8) connected by I2C
•1 gyroscope (IC6) connected by I2C
•1 Light Sensor (G1) connected by I2C
•1 Accelerometer & Magnetometer (IC9) connected by I2C
Figure 10 Lighting expansion board

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8. K32W061 USB Dongle
The OM15080-K32W061 can be used as a node in a Zigbee as a Zigbee Control Bridge,
Zigbee Coordinator or packet sniffer. It can also be used in Thread wireless network,
typically as a dongle for a Border Router, Network/Radio Co-Processor (NCP/RCP) and
is compatible with the NXP QTool for Bluetooth LE.
9. Current measurement on the DK6
The device current can be measured:
1. Using the on-board current measurement circuit with MCUXpresso.
2. Measuring the voltage across a sense resistor (R51) in series with the supply,
3. A current meter on a modified DK6 board or a stand-alone module,
Each of these methods will be described in subsections below. When a board is
attached, attempting to measure the lowest possible power, the IO pins must be
configured by software configuration to avoid any extra current from the IO ports that
have external pull-up or pull-down resistors enabled. JP6 should be opened to avoid
leakage to the Link2 via the I2C and SPI connections between it and the device.
9.1 Current measurement with MCUXpresso
The DK6 board has an on-board current measurement circuit consisting of a MAX9634T
(IC21) current monitor chip and a 12-bit ADC (ADC122S021, IC19) with a 12-bit sample
at 50k to 200ksps. The on-board MAX9634T current monitor measures the voltage
across the K32W061/041 VBAT Vsense resistor of 3.3Ω. The MAX9634 multiplies the
sense voltage by 25 to provide a voltage range suitable for the ADC to measure. The
current measurement circuit is controlled by the debug processor and is not user
programmable. Power measurement utilities to use this feature are available in the
MCUXpresso IDE installation.
Due to input offset voltage variations in the MAX9634, the current measurement circuit is
not recommended for measuring current below 150uA.
9.2 Vsense resistor measurement
The voltage across a series 3.3Ω resistor with the target VBAT can be manually
measured at J14 on the PCB. The voltmeter positive probe is applied to J14 pin 1
Figure 11 K32W061 USB Dongle

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(square pad) and negative probe to J14 pin 2. Use Ohm’s law to calculate the current
(device current = measured voltage / 3.3Ω). As an example, if the measured voltage is
10mV, then 10e-3 / 3.3Ω = 3.03mA. Note that the input current to the MAX9634 used in
the on-board current measurement will be included in the voltage measured across this
resistor.
9.3 Current measurement with a multimeter
Figure 12 is the circuit for the power supply to the module. The signal VBAT is used to
power the module
Figure 12 Power Sensing Circuit
This signal goes to the module (JM1.17) and the expansion connector (J3.31)

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Figure 13 VBAT Connections
To measure the current using multimeter, remove R51 and place the multimeter across
J14 pins 1 and 2.
Figure 14 R51 Location

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The multimeter will also measure the current take by the VDD_SENSE line. This signal is
used the measure the voltage drop across the 3R3 resistor so that the current
consumption results can be shown from with MCUXpresso. The current taken from this
signal is negligible but can be removed by cutting JS6.
Figure 15 Voltage Sense Circuit
Note: on the K32W041AM upgrade module board, it is possible to simply connect a
current probe between JP1 position 2-3 to measure the Vbat current.
9.4 IO Considerations
If an expansion board is not fitted then the following IO lines are connected on the DK6
board. Setting IOs incorrectly in the software will cause current to be consumed and this
should be taken into consideration when measurement current. The following IOs are
connected.
Function
PIOs
Affected
Schematic
Page
number
Comment
NTAG
10, 11
4
Not connected by default. R45 and R59 are
not fitted by default
User Interface Button
1
4
Leave signal high and do not press switch
DS2 LED
0
4
Leave signal high
DS3 LED
3
4
Leave signal high
QSPI
16, 17, 18,
19, 20, 21
4
Negligible affect if QSPI is not used. To
completely remove any current consumption
either remove IC3 or remove RX1, 3, 4, 7, 9
and RX11 to disconnect all PIOs
Bridge SPI
0, 1, 2, 3, 7
7
Negligible effect. Remove IC18 and IC24

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UART
8,9 (UART 0)
0,1 (UART 1)
7
Remove jumpers on JP4 and JP7
IC2 interface to LPC
10, 11
5
Disabled by default. No current draw if DIOS
10 and 11 are high. Cut JS2 and JS11 to
remove completely
Debug
Interface
12, 13, 14
6
Negligible effect. Cut CH4 to disconnect
RESET and ISP
buttons
5, RST
7
Negligible current drawn if not pressed. See
Table for Sleep current measurement
For sleep current measurements, the following additional changes are required to
achieve the datasheet value otherwise the result is typically 600nA high.
Component
Action
Schematic Page
Comment
R51
Remove
2
Allow connection of a Multimeter across J14
IC22
Remove
3V3OUT
7
See Section 5.5 below
D5
Remove
7
Disconnect ISPEN from FTDI device
C33
Remove
7
Remove capacitor from Reset Line
R64
Remove
7
Remove Pullup Resistor from ISPEN
IC21 or cut JS5-6
Remove
6
Disconnect current sense amplifier
IC11
Remove
6
Disconnect control lines from LPC debug
interface
9.5 Running the DK6 board at different voltages
In order to run the DK6 at different voltages, it is necessary to disconnect the
VDD_TRGT from the FTDI 3V3OUT signal otherwise this will continue to supply 3.3V to
the board. The circuit is shown below in Figure 16

NXP Semiconductors
IOTZTB-DK006
IOTZTB-DK006 Development Kit User Guide
UM11393
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© NXP Semiconductors N.V. 2021. All rights reserved.
User Guide
Rev.3.0 —9 March 2021
20 of 23
It is important to leave C49 connected to Pin10 of the FT230A. To achieve this modify the boards as
shown in Figure 17
Figure 16 FTDI Interface
Figure 17 3V3OUT modification