Ublox EVK-ODIN-W2 User manual

EVK-ODIN-W2
Evaluation Kit for ODIN-W2
User guide
Abstract
This document describes how to set up the EVK-ODIN-W2 evaluation kit and provides information
for evaluating and testing the u-blox ODIN-W2 multiradio standalone module with u-connectXpress
software or for embedded custom applications using the Arm®Mbed™ development tool.
www.u-blox.com
UBX-16007132 - R07

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Document information
Title
EVK-ODIN-W2
Subtitle
Evaluation Kit for ODIN-W2
Document type
User guide
Document number
UBX-16007132
Revision and date
R07
6-Sep-2019
Disclosure restriction
This document applies to the following products:
Product name
Type number
Software version
PCN reference
EVK-ODIN-W260
EVK-ODIN-W260-00
-
-
EVK-ODIN-W262
EVK-ODIN-W262-00
-
-
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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Contents
Document information................................................................................................................................ 2
Contents ..........................................................................................................................................................3
1Product description ..............................................................................................................................4
1.1 Overview........................................................................................................................................................4
1.2 Kit includes ................................................................................................................................................... 5
1.3 Jumper description ....................................................................................................................................5
1.4 LEDs............................................................................................................................................................... 5
1.5 Connectors ................................................................................................................................................... 6
1.6 ODIN-W2 pin assignment..........................................................................................................................7
1.7 Buttons..........................................................................................................................................................7
1.8 Antenna connectors and internal antenna............................................................................................7
1.9 Configurations options ..............................................................................................................................8
1.9.1 UART selection for virtual COM port ..............................................................................................8
1.9.2 A1 and A2 analog in vs digital I/O .................................................................................................... 8
1.9.3 ODIN-W2 boot .....................................................................................................................................9
1.9.4 SWD Cortex debug connector.......................................................................................................... 9
1.9.5 32.768 kHz LPO oscillator...............................................................................................................10
2Getting started...................................................................................................................................... 11
2.1 ST-link .........................................................................................................................................................11
2.2 Power up the evaluation board...............................................................................................................11
2.3 Getting started with u-connectXpress software ...............................................................................11
2.3.1 Usage with UART flow control .......................................................................................................12
2.3.2 Restore the u-connectXpress software firmware .....................................................................12
2.4 Getting started with Arm®Mbed™ ........................................................................................................12
2.4.1 Github..................................................................................................................................................12
2.4.2 Mbed OS 3 ..........................................................................................................................................13
2.4.3 Mbed OS 5 ..........................................................................................................................................13
Appendix ........................................................................................................................................................ 14
Updating the ST-link software........................................................................................................ 14
A.1 Repairing an older board already connected to a Windows 10 PC..................................................14
A.2 Updating the ST-link firmware of the debug chip ..............................................................................14
A.2.1 Upgrading the USB mass storage device driver.........................................................................14
Schematic .............................................................................................................................................. 15
Glossary ................................................................................................................................................. 20
Related documents .................................................................................................................................... 21
Revision history........................................................................................................................................... 21
Contact...........................................................................................................................................................22

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1Product description
1.1 Overview
The ODIN-W2 is a compact and powerful stand-alone multiradio module, designed for
Internet-of-Things gateway applications. The module includes embedded Bluetooth®stack, Wi-Fi
driver, IP stack, and an application for wireless data transfer, all configurable using AT commands.
The wireless support includes dual-mode Bluetooth v4.0 (BR/EDR and low energy) and dual-band
Wi-Fi (2.4 and 5 GHz bands).
This document describes how to set up the EVK-ODIN-W2 evaluation kit and provides information for
evaluating and testing the u-blox ODIN-W2 multiradio standalone module with u-connectXpress
software or using the Arm®Mbed™development tool. The main features of the EVK-ODIN-W2 are:
RJ45 Ethernet connector for ODIN-W2 RMII-PHY interface
Can be powered through USB or external power supply
Onboard ST-Link v2.1 debugger
32.768 kHz LPO oscillator
Pin headers in 1.8 V I/O domain and Arduino sockets in 3.3 V I/O domain
Micro SD-card slot
The EVK-ODIN-W2 evaluation kit is available in the following two different versions depending on the
ODIN-W2 series module that is mounted:
EVK-ODIN-W260
EVK-ODIN-W262
This section describes the main connectors and settings required to get started. Figure 1 shows the
EVK-ODIN-W2 evaluation board.
Figure 1: EVK-ODIN-W2 Evaluation kit overview

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1.2 Kit includes
EVK-ODIN-W2 evaluation board
USB cable
Quick Start card
1.3 Jumper description
Function
Description
Name
Default
Onboard debugger
power
Selects whether to power the onboard debugger or not
J6
Mounted
Virtual COM port
UART selection
Selects UART1 or UART3 for virtual COM port over USB
J13
UART1
A1 and A2 Analog
in or Digital I/O
selection
Selects whether the A1 and A2 socket pins on J2 connector can
be used for analog in or Digital I/O.
J26
Digital I/O
32.768kHz LPO
oscillator
Selects whether the 32.768 kHz LPO oscillator is connected to
ODIN-W2 or not
J21
Not mounted
ODIN-W2 Boot
Selects whether to force ODIN-W2 into Boot mode or not
J15
Not mounted
Table 1: EVK-ODIN-W2 jumper description
1.4 LEDs
Function
Description
Name
Color
RGB/SPA status
RGB LED shows status for u-connectXpress. Also available for
user applications in ARM Mbed.
See the ODIN-W2 series data sheet [4] .
DS1
RGB
Onboard
debugger/virtual
COM port status
Indicates status for the onboard debugger and virtual COM port
over USB
DS6
Green or Red
Table 2: EVK-ODIN-W2 LEDs description

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1.5 Connectors
The available connectors of the EVK-ODIN-W2 are shown in Figure 2.
Figure 2: EVK-ODIN-W2 connectors and pin assignment
Connector
Description
J1, J2, J3, J4
Socket connectors with 3.3 V I/O level
J22, J23, J24
Pin header connectors with 1.8 V I/O level
J25
SWD Cortex debug connector for ODIN-W2
J12
RJ45 Ethernet connector
J11
Power jack (5-12 V), positive center
J8
USB connector
Table 3: EVK-ODIN-W2 connector description
On the EVK-ODIN-W2 evaluation board, there are two sets of connectors for accessing the ODIN-W2
pins. The socket connectors (J2, J3, and J4) placed closely to the board edges are connected to ODIN-
W2 through level shifters and have 3.3 V I/O level. The pin header connectors (J22, J23, and J24) are
directly connected to ODIN-W2 and have 1.8 V as I/O level.
⚠Be careful to connect only the 1.8 V level or 3.3 V level pin in a pair if the ODIN-W2 pin is used as
input. For example, A14 on J22 and J3.

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1.6 ODIN-W2 pin assignment
Refer to ODIN-W2 series System Integration Manual [1] for information about pin assignment.
1.7 Buttons
The EVK-ODIN-W2 evaluation board has three buttons. All these buttons are directly connected to
pins on the ODIN-W2 module. The SW0 and SW1 buttons are grounded only when pressed; otherwise
they float. Hence, they need to be configured as pull-ups in the application software.
Button
Description
RESET
ODIN-W2 reset button connected to ODIN-W2 pin A1
SW0
General function button connected to ODIN-W2 pin A6
SW1
General function button connected to ODIN-W2 pin A8
Table 4: EVK-ODIN-W2 buttons description
1.8 Antenna connectors and internal antenna
The ODIN-W260 module has two RF antenna U.FL. coaxial connectors with a characteristic
impedance of 50 Ω. The main antenna connector supports both Bluetooth and dual-band Wi-Fi. The
second (MIMO) antenna connector provides support for 2x2 MIMO 2.4 GHz single band Wi-Fi.
The ODIN-W262 module has an internal dual-band PIFA antenna and supports Bluetooth and
dual-band Wi-Fi (SISO).
Figure 3: ODIN-W260 with connectors for external antennas and ODIN-W262 with an internal antenna

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1.9 Configurations options
1.9.1 UART selection for virtual COM port
It is possible to select either UART1 or UART3 to be relayed through the onboard debugger as a virtual
COM port available at the USB connector.
Depending on the selected UART, the jumpers on header J13 can be configured in two different ways.
The default configuration uses UART1 as shown in Figure 4. If you select UART3, configure the two
jumpers as shown in Figure 5 .
1.9.2 A1 and A2 analog in vs digital I/O
On the J2 socket connector, there are two pins - A1 and A2 that can be configured either as analog
inputs or digital I/Os in the 3.3 V I/O domain. By default, these two pins will be configured as digital
I/Os, as shown in Figure 6. To use them as analog inputs, configure the jumpers on pin header J26 as
shown in Figure 7. You can also use one pin as analog input and another as digital I/O as long as you
configure the jumpers accordingly. The analog level conversion down to the ODIN-W2 1.8 V I/O level is
handled by onboard voltage follower op amps.
To use the corresponding pins on the 1.8 V I/O level pin header, J23, remove the jumpers on J26 pin
header.
Figure 5: UART3 virtual COM port
Figure 4 UART1 virtual COM port

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☞Due to the dual functionality of the A1 and A2 pins, there is a slight degradation of accuracy when
using the pins as analog inputs. If you require full accuracy, it is recommended to disable the digital
feature permanently by unmounting resistor R81 and R82 as shown in Figure 8.
Figure 8: Resistors R81 and R82
1.9.3 ODIN-W2 boot
The boot jumper J15 is used to force the boot mode. This is helpful when the SWD pins have been
mistakenly configured as GPIOs and it is no longer possible to communicate with the module.
1.9.4 SWD Cortex debug connector
The EVK-ODIN-W2 has an onboard ST-Link v2.1 debugger. You can also connect an external debugger
to the ODIN-W2 module via the 10-pin SWD Cortex debug connector J25.
The onboard debugger should be enabled (jumper on position J6 mounted) even if using an external
debugger.
Figure 7: A1 and A2 as digital I/O on J2
Figure 6: A1 and A2 as analog in on J2

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1.9.5 32.768 kHz LPO oscillator
There is an onboard 32.768 kHz oscillator on the EVK-ODIN-W2. The output signal of this oscillator
can be connected to ODIN-W2 by putting a jumper on pin header J21. The LPO is used for the Wi-Fi
chip to enable entering low power modes. If the external LPO is not connected, an internal clock will be
generated by the MCU on the module. The benefit of using an external LPO is that the MCU on the
module can enter the lowest power mode, that is, the stop mode.
Figure 9: 32.768 kHz oscillator and pin header J21