EVK-JODY-W2 - User guide
UBX-19027118 - R03 Page 2 of 26
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Document information
Title
EVK-JODY-W2
Subtitle
Evaluation kit for JODY-W2 host-based modules
Document type
User guide
Document number
UBX-19027118
Revision and date
R03
8-Jul-2020
Disclosure restriction
C1 - Public
This document applies to the following products:
Product name
Type number
Firmware version
PCN reference
EVK-JODY-W263
EVK-JODY-W263-01A-00
Not applicable
Not applicable
u-blox or third parties may hold intellectual property rights in the products, names, logos and designs included in this
document. Copying, reproduction, modification or disclosure to third parties of this document or any part thereof is only
permitted with the express written permission of u-blox.
The information contained herein is provided “as is” and u-blox assumes no liability for its use. No warranty, either express or
implied, is given, including but not limited to, with respect to the accuracy, correctness, reliability and fitness for a particular
purpose of the information. This document may be revised by u-blox at any time without notice. For the most recent
documents, visit www.u-blox.com.
Copyright © u-blox AG.
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C1 - Public
Contents
Document information ................................................................................................................................ 2
Contents .......................................................................................................................................................... 3
1 Kit description ........................................................................................................................................ 4
1.1 Overview ........................................................................................................................................................ 4
1.2 Kit includes ................................................................................................................................................... 5
1.3 Software ........................................................................................................................................................ 6
1.4 System requirements ................................................................................................................................ 6
2 Specifications ......................................................................................................................................... 7
2.1 Operating conditions .................................................................................................................................. 7
2.2 SDIO operating voltage .............................................................................................................................. 7
3 Getting started ....................................................................................................................................... 8
3.1 Jumpers and connectors .......................................................................................................................... 9
3.2 EVK setup procedure.................................................................................................................................. 9
3.3 Host interface for Wi-Fi (1.8 V UHS) ....................................................................................................... 9
3.4 Host interface for Wi-Fi (3.3 V HS) ........................................................................................................10
3.5 Host interface for Bluetooth ...................................................................................................................11
4 Board description ................................................................................................................................ 12
4.1 Block diagram ............................................................................................................................................12
4.2 Jumper conventions .................................................................................................................................13
4.3 Power supply configuration ....................................................................................................................13
4.4 Input voltage levels ...................................................................................................................................15
4.5 SDIO Interface ............................................................................................................................................16
4.6 Bluetooth UART interface .......................................................................................................................17
4.7 Bluetooth audio interface ........................................................................................................................17
4.8 Control lines ...............................................................................................................................................19
4.9 Bootstrapping ............................................................................................................................................19
4.9.1 General settings ................................................................................................................................20
4.9.2 Bluetooth over UART .......................................................................................................................21
4.9.3 Bluetooth over SDIO .........................................................................................................................21
4.10 Antenna connectors .................................................................................................................................21
4.11 LEDs .............................................................................................................................................................22
4.12 Schematics .................................................................................................................................................22
Appendix ....................................................................................................................................................... 23
A Known issues ........................................................................................................................................ 23
B Glossary ................................................................................................................................................. 24
Related documents ................................................................................................................................... 25
Revision history .......................................................................................................................................... 25
Contact .......................................................................................................................................................... 26
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1 Kit description
The JODY-W2 series are compact modules based on the NXP 88W8987 chipset family. The chipsets
used in the automotive grade JODY-W2 modules are AEC-Q100 compliant. They enable Wi-Fi,
Bluetooth, and Bluetooth Low Energy (LE) communication, and are ideal for automotive and industrial
applications.
EVK-JODY-W2 allows an external host processor to access several practical features for testing and
evaluating the Wi-Fi and Bluetooth connectivity supported in JODY-W2 series modules, including:
An external connector to all host interfaces (SDIO and UART).
PCM interface through an on board accessible connector.
GPIO pins that are accessible through an on board connector.
Internal dual-band 2.4/5 GHz antennas for Wi-Fi and Bluetooth.
SMA connectors for external antennas.
Module interfaces that are all externally available via the pin headers
For more information about JODY-W2 modules, see the JODY-W2 series data sheet [1] and system
integration manual [2].
1.1 Overview
Table 1 lists the different evaluation kit versions:
Evaluation kit
Ordering code
Description
Suitable for evaluation of
EVK-JODY-W263
EVK-JODY-W263-01A
Evaluation kit for JODY-W263
Antennas:1 Wi-Fi dual-band,1 Bluetooth.
Host-based NXP 888987 family of chipset.
JODY-W263-00A
JODY-W263-01A
JODY-W263-00B
Table 1: Available EVK-JODY-W2 evaluation kits
Figure 1 shows the attached peripherals and connectors of the EVK-JODY-W2.
Figure 1: EVK-JODY-W2 outline showing peripherals and connectors
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1.2 Kit includes
Connectors to use different interfaces of the module are included in the evaluation kit. Table 2 shows
the various components included in the EVK-JODY-W2.
Part
Description
Outline
Evaluation board (EVB)
Evaluation board for the JODY-
W263 series modules.
The board includes SMA antenna
connectors that connect to external
antennas for Wi-Fi and Bluetooth.
It has two internal dual-band Wi-
Fi/Bluetooth antennas.
Level Shifter with
micro SDIO ZIF adapter
and flat cable
SDIO level shifter to be used if the
host supports only 3.3 V interface
voltage (High Speed Mode).
Micro SDIO ZIF adapter
and flat cable.
SDIO cable for Wi-Fi (optionally
Bluetooth) host communication.
Micro SDIO adapter for Wi-Fi and/or
Bluetooth host communication, The
adapter is compatible with host
sockets designed for micro SD
memory cards.
Type-C USB cable
Type-C USB cable for Bluetooth host
communication over UART
connected via FTDI.
External Antennas (2)
1 x Dual band Wi-Fi/Bluetooth
antenna,
Linx Technologies
ANT-DB1-RAF-SMA
Table 2: EVK-JODY-W2 component list
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1.3 Software
The reference driver developed by NXP is only distributed to customers that have signed a Limited
Use License Agreement (LULA-M) with u-blox. Contact u-blox support for your area as listed in the
Contact section for information about how to obtain the driver package.
A Yocto/OpenEmbedded meta layer, which includes recipes for integrating the drivers into Yocto-
based projects, can be provided on request by u-blox.
Refer to the JODY-W2 System Integration Manual [2] for a description of how to build and install the
drivers and basic usage examples.
1.4 System requirements
The evaluation kit has the following system requirements:
Host (PC or embedded system) with Micro SDIO slot and USB 2.0 interface for access to the
Bluetooth UART interface through USB-to-UART bridge
Operating System: Linux(3.x/4.x/5.x), Android Pie (9.0.0_2.3.4)
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2 Specifications
This section includes the different operating parameters for the EVK-JODY-W2.
2.1 Operating conditions
Table 3 describes the absolute range for key EVK operating parameters.
Symbol
Parameter
Min.
Typ
Max.
Units
VBAT
Power supply voltage
2.8
3.3
3.6
V
VIO
I/O supply voltage 1.8 V
1.67
1.8
1.92
V
I/O supply voltage 3.3 V
2.8
3.3
3.6
V
1V8
Analog power supply voltage 1.8 V
1.71
1.8
1.89
V
TA
Ambient operating temperature
-40
-
+85*
ºC
Ripple Noise
Peak-to-peak voltage ripple on all supply lines.
-
-
10
mV
Table 3: EVK-JODY-W2 operating conditions
2.2 SDIO operating voltage
The signal voltage for the SDIO interface of the JODY-W2 series module is powered from the 1V8
supply. A level shifter is required to operate the module in Default Speed and High-Speed modes at
3.3 V signal voltage.
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3 Getting started
There are different jumpers and connectors needed to set-up the EVK-JODY-W2. All the various
setups and procedures are explained in the sections to follow.
Figure 2: EVK-JODY-W2 connectors
J204: SDIO
connector
J205: USB type-C
connector for
Bluetooth (bottom)
Base for module
board
SW503: Bootstrapping
J300, J302,
J303: Control
lines
J104, J105, J106:
Power supply
configuration
J406, J410:
SMA connectors
J301:
Bluetooth
audio
interface
J305: UART Interface
J400: USB-
UART enable
Internal Antenna –
Bluetooth 2.4GHz
Wi-Fi dual-band
J405, J409
u.FL connectors
LEDs
SW500, SW501:
Reset module
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3.1 Jumpers and connectors
Table 4 provides a summary of the connectors and jumpers used to configure EVK-JODY-W2.
Designator
Connector
Description
J104, J105, J106
Power supply
configuration
Jumper settings for power supply configuration (4.3)
J107, J108,
J109, J111
Input voltage
configuration
Jumper settings for selecting the input voltage for the module from power
supply configuration (4.4)
J204
Micro SDIO Connector
Connector for SDIO host interface on EVK (4.5)
J305
Bluetooth UART
UART connector for Bluetooth host interface (4.6)
J205
Type-C USB
USB connector for Bluetooth host interface (via USB-to-UART bridge)
J301
Bluetooth audio
Connector for the PCM/I2S audio interface (4.7)
J300, J302, J303
Control lines
Connector for host and device wake for Bluetooth and WLAN (4.8)
SW503
Bootstrapping
Pin headers for SDIO host interface selection for Bluetooth (4.9)
J400
USB-UART Enable
Jumper to enable/disable the Bluetooth host interface via USB-to-UART bridge
J405, J409
u.FL connectors
u.FL connectors to be used for external antennas
J406, J410
SMA Connector
SMA coaxial RF connectors for ANT0, ANT1 (4.10)
Table 4: JODY-W2 evaluation board connectors
3.2 EVK setup procedure
Use the following procedure to evaluate JODY-W2 series modules:
1. By default, internal antennas are selected for any transmission and reception using the pig tail
coaxial cable as shown in Figure 1. To use external antennas, connect the pig tail coaxial cables
to another pair of u.FL adapters. And connect the external dual-band antennas to the SMA
connectors.
2. Connect the SDIO adapter to the connector on the board.
3. Connect the evaluation board to the host system through the supplied micro SDIO adapter card.
The evaluation board uses zero insertion force (ZIF) connectors and flat cables to connect the
adapters. To connect the cable, gently flip up the small locking flap of the connector, align and
insert the cable with the blue marking pointing upwards, and then close the locking flap.
4. Check the LEDs. They correspond to different input voltage levels. They turn green upon reaching
the appropriate voltage levels. At this point the module should be detected by the host system.
5. For evaluation of the Bluetooth features, we can either use SDIO interface (via flat cable shared
with Wi-Fi) or UART (via Type-C USB cable). See sections 4.6 and 4.9 for detailed instructions.
6. Install the necessary driver software for the JODY-W2 series modules as described in the System
Integration Manual [2].
3.3 Host interface for Wi-Fi (1.8 V UHS)
For Wi-Fi, SDIO interface is the only available option for communication. Follow the procedure outlined
below to connect the SDIO interface for Wi-Fi:
1. Connect the micro SDIO adapter card with the micro SDIO connector (J204) on the board using
the flat ribbon cable. Make sure that the blue strip at the end faces upwards while connecting on
both sides.
2. Connect the evaluation board to the host system by inserting the adapter card into a SDIO
connector of the host system.
⚠ Be careful while inserting the SDIO adapter into the SDIO slot of a laptop. Built-in readers can be
poorly designed and damage more easily than those on more compact development platforms.
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3.4 Host interface for Wi-Fi (3.3 V HS)
By default, EVK-JODY-W2 operates with host interface voltage of 1.8 V. For the designs with host
interface voltage 3.3 V, a level shifter is needed to convert the voltage level of all the signals. Using
3.3 V the SDIO interface operates in High Speed (HS) mode. Figure 3 shows how the level shifter and
EVK are connected. For more information about level shifters see the application note [3].
Figure 3: EVK connection to level shifter
⚠ Level shifters are voltage sensitive. To avoid damaging the level shifter IC, connect it so that host
is in the direction of the micro SD adapter as shown in Figure 4.
Figure 4: Level shifter direction
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3.5 Host interface for Bluetooth
The JODY-W2 series modules support a high speed UART interface for Bluetooth communication.
A USB-to-UART bridge (FTDI FT234XD) is included on the evaluation board. Follow the procedure
outlined below to connect the board to a host system through USB.
1. Connect one end of the USB cable to the Bluetooth USB connector on the board.
2. Connect the other end of the USB cable to the host system.
3. Make sure that jumper J400 is bridged to enable Bluetooth communication over UART via FTDI.
☞ The 4-pin UART interface of the JODY-W2 series modules can be directly accessed through
the pins provided on the EVK - Bluetooth UART connector J305. Refer to section 4.6 for
information on how to use the Bluetooth UART on the evaluation board.
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4 Board description
This section describes the logical components, connectors, jumpers and switches used to configure
the EVK-JODY-W2.
4.1 Block diagram
EVK-JODY-W2 design is organized between the module board and carrier board. The carrier board
includes all the necessary peripherals and connectors. It also includes a slot for mounting the module
board. Module board holds the JODY-W2 module. Figure 5 shows the relation and placement of carrier
and module boards which comprise of EVK-JODY-W2.
Figure 5: Carrier and module board
Figure 6 shows the EVK with different peripherals and connectors around it.
Figure 6: EVK-JODY-W2 block diagram
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4.2 Jumper conventions
Figure 7 shows the graphical conventions used for jumper settings illustrated in this document.
Pin 0 is shown in grey color. All jumpers are shown with red lines terminated with round edges.
Figure 7: Jumper convention
4.3 Power supply configuration
JODY-W2 series modules are supplied with VBAT (3.3 V), 1V8 (1.8 V), and a VIO voltage (either 3.3 V
or 1.8 V). Different interfaces and external sources can also provide input voltages to the module.
Power to EVK-JODY-W2 can be supplied through different interfaces:
SDIO interface: The connector with the host for all Wi-Fi and Bluetooth (optional) communication
can be used to generate the power for operation.
USB: If Bluetooth is connected via USB, then it can act as a power supply.
External power supply: EVK-JODY-W2 can be connected with an external power supply of 7 V to
24 V. In this case, a DC-DC converter is used for generating all the required internal voltages.
Individual supply: All the necessary voltage levels VBAT, VIO, and 1V8 have pinouts that can be
connected individually using an external power source.
Figure 8 describes pins used to enable power supply to the module.
Figure 8 Power Configuration and validation
Pin 0 of the jumper JXXX
Jumper connected between two pins
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Figure 9 describes the different voltage sources and derived limits.
Figure 9: JODY-W2 power supply tree
Figure 10: Derived voltage limits using different sources
The available voltage sources shown in Figure 11.
Figure 11: Input voltage sources
Jumpers J104 and J105 determine the power supply for the EVK. Later the required input voltage
levels are obtained by passing the source through the DC-DC converter as shown in Figure 10.
You use the jumper configurations shown in Table 5 to select the appropriate input power supply for
EVK-JODY-W2. See also 4.2.
Input voltage
Jumper configuration
3V3 from SDIO interface.
Use micro SDIO adapter with the flat cable to connect to the host.
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Input voltage
Jumper configuration
3V3 from USB interface.
Use Type-C USB cable to connect with the host.
The USB host port must be able to deliver a current of up to 1000 mA for Wi-Fi operation. The
current provided by a standard USB 2.0 interface is sufficient for Bluetooth only operation.
3V3 from single external power supply.
External supply must be connected to the power jack.
(top of the EVK beside type-C adapter)
All input voltages are supplied from individual sources.
External supplies must be connected to the power jack located below the EVK on the left hand
side.
Table 5: Selecting power supply to the EVK
⚠ On initial version of the EVK (Rev C), while using individual power sources for VBAT, VIO, and 1V8,
put the jumper to select SDIO interface as input voltage source.
4.4 Input voltage levels
With reference to the power matrix shown in Figure 12, position jumpers J107, J108, J109, and J111
to select an appropriate input voltage for the module. The jumpers configure the input between DC-
DC converted voltage and the direct input voltage.
Figure 12 shows the jumper pins for configuring the input voltages described in Table 6.
Figure 12: Input voltage pins
Input voltage
Explanation
Source
VBAT_MUX
Input voltage to operate the module along with the
peripherals around the module such as audio codec, etc.
Other voltage levels are generated by passing the VBAT
through DC-DC converter.
Can be connected to 3V3_DCDC or VBAT_EXT
VIO_MUX
Input voltage for the module to toggle GPIOs, etc.
Can be connected to VBAT or 1V8 or VIO_EXT
1V8_MUX
Input voltage for the internal circuitry on the module.
Can be connected to 1V8_DCDC or 1V8_EXT
Table 6: Input voltage options
For the operation of EVK-JODY-W2, we need to set jumpers as explained in Table 5 and Table 7. The
first one selects the input power supply and the later one defines the voltage levels to operate the
module. Table 7 describes the different options to select the input voltage for different signals.
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Jumper settings
Remarks/Voltage levels
VIO (3.3 V) VIO (1.8 V)
Power supply using single input source or interface
(either SDIO or USB).
VIO voltage is derived from 1V8 or VBAT (based on the
design):
VBAT – 3.3 V
VIO – 1.8 V/3.3 V
1V8 – 1.8 V
Power supply using individual input source for each of the
voltage levels
Voltage is derived from individual source supplies
connected to the EVK. The supplies are connected at the
bottom of the EVK carrier boards.
VIO (3.3 V) VIO (1.8 V)
To optimize further, connect 2 input sources for 3V3 and
1V8. For VIO, connect the VIO jumper to either VBAT or
1V8 based on the requirement.
VIO voltage is derived from 1V8 or VBAT.
VIO – 1.8 V/3.3 V
Table 7: Input voltage jumper selection
4.5 SDIO Interface
The boards can be connected through a micro SDIO connector for Wi-Fi communication with the host
system. The SDIO connector can optionally be used for Bluetooth. The SDIO host interface connector
(J204) is shown in Figure 13.
Figure 13: SDIO interface connector
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All signals except VDD_SDIO are directly connected to the JODY-W2 module through 22 Ω series
resistors connected on module board.
VDD_SDIO is connected to the power supply connector (J105) and is used for supplying 3.3 V for VBAT
from the SDIO interface. The SDIO interface has 50Ω impedance. The SDIO signals are powered by the
1V8 voltage domain.
☞ Pull-up resistors are not installed on the EVK because in-general host boards have them, but
the carrier board has the provision to install them in case if needed by the design.
4.6 Bluetooth UART interface
To use UART for communication with Bluetooth, choose either the type-C USB connector provided
with the kit or UART pins. A type-C USB connector is used for Bluetooth communication with the
JODY-W2 series modules.
A USB-to-UART bridge (FTDI FT234XD) is included on the evaluation board to connect to the high
speed UART interface of the JODY-W2 series modules. VDD_USB from the USB connector is
converted by a DC-DC to 3.3 V and connected to the power supply connector (J104) for supplying
VBAT from the USB interface.
The 4-pin UART interface of the JODY-W2 series modules can be directly accessed through the
Bluetooth UART connector J305. To use the UART interface, remove the J400 jumpers and connect
the UART host interface to the respective module side pins on J305, as shown in Figure 14 and Table
8. Signal ground can be connected to one of the available GND pins on J303 as shown in Figure 17.
The UART signals are powered by the VIO voltage domain.
Figure 14: Bluetooth UART interface
Name
I/O
Description
Remarks
UART_TXD
O
UART TX signal
Connect to Host RX
UART_RXD
I
UART RX signal
Connect to Host TX
UART_RTS
O
UART RTS signal
Connect to Host CTS
UART_CTS
I
UART CTS signal
Connect to Host RTS
Table 8: UART signal description
4.7 Bluetooth audio interface
A MAX9860 16-bit audio codec for Bluetooth voice applications is provided on the JODY-W2 EVK and
connected to the PCM interface of the module. A 3.5 mm audio jack (J206) to connect a headset is
available on the bottom side of the EVK. The codec is operated with a master clock (MCLK) of
19.2 MHz. The MAX9860 audio codec is completely controlled through software using an I2C
interface. The codec responds to the I2C slave address 0x20 for all write commands and 0x21 for all
read operations.
Place jumpers J401 and J402 on the bottom side of the EVK to enable the audio codec.
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Figure 15: Enable audio codec option
The I2C interface of the audio codec is provided on connector J303 of the EVK as shown in Figure 17
and Table 9.
The PCM interface of the JODY-W2 module is directly connected to the serial audio interface of the
MAX9860 audio codec. The PCM pins are additionally provided on connector J301 as shown in Figure
17 and Table 9.
Name
I/O
Connector / pin no.
Description
I2C_SDA
I/O
J303 / 11
I2C Serial-Data Input/Output
I2C_SCL
I
J303 / 13
I2C Serial-Data clock
PCM_CLK
I/O
J301 / 16
PCM clock
PCM_SYNC
I/O
J301 / 15
PCM frame sync
PCM_IN
I
J301 / 18
PCM data in
PCM_OUT
O
J301 / 17
PCM data out
Table 9: Audio interfaces
⚠ On initial version of the EVK (Rev.C.R1) the series resistors used for the PCM audio signals are not
connected to the audio CODEC circuit. Figure 16 shows the physical position of these resistors.
To enable it, 0 Ω resistors must be soldered.
Figure 16: Connection of PCM signals with CODEC - missing series resistor
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4.8 Control lines
Connector J303 provides several control lines from the JODY-W2 series module, such as host wake-
up signals, etc. These control lines, used for monitoring and controlling the working state of radio, are
shown in Figure 17.
Figure 17: Control line connectors
☞ Only GPIOs 0-5 are connected with the JODY-W2 module, but you can use the remaining
signals – if needed.
4.9 Bootstrapping
Wi-Fi communication only operates over the SDIO interface, but Bluetooth can communicate through
either SDIO or UART interface. Figure 18 shows the switches that need to be set to define the boot up
mode and subsequent physical interface that is used for Bluetooth communication.
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Figure 18: Circuit for DIP switches
4.9.1 General settings
Jumper J400 and DIP switch SW503 must be configured to use Bluetooth over any interface.
To enable the FTDI chipset to convert the raw UART signal into USB, connect jumper J400.
To enable or disable the UART interface, set CONS0 line on switch SW503 as explained in Table 10.
Figure 19: DIP switches
Switching the DIP switch ON will connect the signal (CONS0) to ground (GND). Set DIP switch in
SW503 to the appropriate position to select the boot configuration for the Bluetooth interface, as
shown in Table 10.
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