Infineon AIROC IFW56810-00 User manual

Application Note Please read the sections “Important notice” and “Warnings” at the end of this document 002-34322 Rev. *C
www.infineon.com 2023-05-03
AN234322
Getting started with AIROC™ IFW56810-00
single-band Wi-Fi 4 Cloud Connectivity Manager
About this document
Scope and purpose
This document guides the user to set up and connect the AWS IoT ExpressLink IFW56810-00 Cloud Connectivity
Manager module to the AWS IoT Core in a few simple steps without involving any firmware development. This
document also provides an overview of the module, the evaluation kit, steps to connect to the AWS Cloud, and
usage of the AT command set.
Intended audience
Customers who are new to IoT and/or require a turnkey solution to get their products connected to the cloud.
Table of contents
About this document....................................................................................................................... 1
Table of contents............................................................................................................................ 1
1Overview............................................................................................................................... 3
2Kit contents........................................................................................................................... 4
3Hardware .............................................................................................................................. 5
4Setting up a serial terminal on the PC ....................................................................................... 6
4.1 Determine the COM port number ...........................................................................................................6
4.2 Serial terminal settings...........................................................................................................................7
5Quick evaluation of the CCM device.......................................................................................... 8
5.1 Connect the kit to the PC ........................................................................................................................8
5.2 Steps for Quick Connect evaluation.......................................................................................................8
6Getting started with using an AWS account ..............................................................................10
6.1 Creating your AWS account and permissions ......................................................................................10
7Register the kit to your AWS development account ...................................................................11
7.1.1 Infineon CIRRENT Cloud flow ..........................................................................................................11
7.1.2 AWS flow...........................................................................................................................................16
7.2 Connect the kit to Wi-Fi.........................................................................................................................18
7.2.1 Using AT commands ........................................................................................................................18
7.2.2 Using CIRRENT Wi-Fi onboarding app.............................................................................................18
7.3 Connect and interact with the AWS Cloud ...........................................................................................19
7.3.1 Connect to the AWS IoT Core...........................................................................................................19
8AT commands to send and receive data ...................................................................................20
8.1 Publish to a topic...................................................................................................................................20
8.2 Subscribe to a topic...............................................................................................................................20
9Low-power modes.................................................................................................................21

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Table of contents
9.1 Prerequisites..........................................................................................................................................21
9.2 System sleep mode ...............................................................................................................................21
9.3 Deep Sleep mode ..................................................................................................................................21
10 Performing firmware over-the-air update................................................................................22
10.1 Prerequisites..........................................................................................................................................22
10.2 Create a firmware update job in AWS IoT.............................................................................................22
10.3 Monitor and apply the new firmware update for the IFW56810-00 module.......................................23
11 Performing host firmware over-the-air update.........................................................................24
11.1 Prerequisites..........................................................................................................................................24
11.2 Create a firmware update job in AWS IoT.............................................................................................24
11.3 Monitor and load the firmware update to the host .............................................................................25
12 Troubleshooting ...................................................................................................................26
12.1 Two COM ports enumerated when the kit is connected......................................................................26
12.2 Errors when commands are entered....................................................................................................26
12.3 Change the Wi-Fi network connected ..................................................................................................26
12.4 Onboarding does not work with the CIRRENT app..............................................................................26
12.5 ERR14 2 UNABLE TO CONNECT [Wi-Fi Connection failed] error for the AT+CONNECT command.....26
12.6 ERR14 5 UNABLE TO CONNECT MQTT device authentication failure error for the AT+CONNECT
command...............................................................................................................................................26
12.7 Steps to follow if CIRRENT flow is not working....................................................................................27
12.7.1 Check if a Thing is present in the AWS IoT console for your device ...............................................27
12.7.2 Check for a job in the CIRRENT Console..........................................................................................27
12.8 Other supported AT commands ...........................................................................................................28
13 References ...........................................................................................................................29
Revision history.............................................................................................................................30

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Overview
1Overview
AIROC™IFW56810-00 Single-band Wi-Fi 4 Cloud Connectivity Manager Module (CCM) is a configurable Wi-Fi
connectivity module that provides a simple, secure, plug-and-play solution for connecting products to AWS IoT
cloud services. The IFW56810-00 CCM module is preprogrammed with a tested secured firmware and supports
an easy-to-use AT command interface for configuration, and provides end-to-end security.
•The device identity certificate is built into the module and can run only Infineon-signed firmware.
•The module connects to the cloud using secure connections.
•Devices are managed securely in the cloud.
The IFW56810-00 CCM module features a 1x1 single-band (2.4 GHz) device operating at 20-MHz channels
supporting IEEE 802.11 b/g/n. See the datasheet for details.
The host processor system interacts with the IFW56810-00 CCM module through AT commands over UART. The
IFW56810-00 CCM module handles all networking-related operations to connect to the AWS IoT Core through
MQTT over Wi-Fi.
Host Processor IFW56810 CCM
Module AWS IoTAT Commands MQTT
Figure 1 System architecture for products using the IFW56810-00 CCM module

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Kit contents
2Kit contents
•IFW956810 single-band Wi-Fi 4 Cloud Connectivity Manager evaluation kit to evaluate the
IFW56810-00 single-band Wi-Fi 4 Cloud Connectivity Manager Module
•USB Type-A (male) to Type-C (female) cable
•Quick start guide
Note: Follow the quick start guide provided along with thekKit before starting with the current document.

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Hardware
3Hardware
The IFW956810 CCM evaluation kit consists of an IFW56810-00 single-band Wi-Fi 4 Cloud Connectivity Manager
module with secure processor, a PCB antenna, an FTDI chip for the USB to serial interface, and an 8x2 pin
header.
IFW56810 module
Printed Antenna
USB Type-C male
Plug
Figure 2 Top view
8*2 pin header
(J60)
FTDI chip
Figure 3 Bottom view
Ensure that pin 3 to pin 4, pin 5 to pin 6, pin 9 to pin 10, and pin 11 to pin 12 of header J60 are closed before
connecting the USB dongle to the PC (see Figure 3). The PC can be used as a host for evaluation. AT commands
can be sent through a serial terminal on the PC to the IFW956810 CCM kit.

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Setting up a serial terminal on the PC
4Setting up a serial terminal on the PC
Note: The following instructions are only for a Windows PC.
The IFW956810 CCM evaluation kit should be recognized by the PC when connected to it. If the device is
recognized, the COM ports will be available in the Device Manager.
If the device is not recognized, you need to install the FTDI USB-to-UART Bridge Virtual Communication Port
drivers from this link.
4.1 Determine the COM port number
•In Windows, determine the COM port number from the Device Manager.
Note: Use the higher-number COM port among the enumerated COM ports to communicate with the kit.
Figure 4 COM port

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Setting up a serial terminal on the PC
4.2 Serial terminal settings
Note: Tera Term is not available for Linux/macOS but there are some alternatives like PuTTY,
which have the same functionality as Tera Term, and are both free and Open Source.
1. Open a terminal such as Tera Term.
2. Choose the higher of the COM port numbers for the IFW956810 CCM evaluation kit.
3. Select Set Up > Serial port.
4. Select the settings as follows:
5. Select Set Up > Terminal.
6. Do the following:
•Set End of Line as Line Feed.
•Enable Local Echo to view the commands that you type on the terminal.
Once you open the serial terminal, type AT+CONF? About in the serial terminal.
You should see a response “OK Infineon - IFW56810”.

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Quick evaluation of the CCM device
5Quick evaluation of the CCM device
The IFW956810 CCM evaluation kit comes with a quick evaluation flow that lets you test your device right out of
the box without creating an AWS account. The following steps will enable you to connect the kit to the internet
through Wi-Fi and send random data points to the AWS staging account.
Note: 1. If you don’t want to do a quick evaluation of the CCM device, jump to Section 6.
2. The AWS Staging account provides users who do not have an AWS account to quickly evaluate the
kit.
3. To connect programmatically to an AWS service like the AWS IoT core, use an endpoint. An
endpoint is the entry point URL for an AWS web service. All CCM devices come with a preconfigured
Endpoint of AWS staging account for evaluating the Quick Connect flow.
4. Quick Connect is meant for evaluation purposes only.
5.1 Connect the kit to the PC
Connect the IFW956810 Single-band Wi-Fi 4 Cloud Connectivity Manager evaluation kit to the PC using either
the Type-C connector or Type-A male to Type-C female cable.
Figure 5 Connect the USB dongle to the PC
5.2 Steps for Quick Connect evaluation.
Note: To perform a Quick Connect evaluation, it is essential to close the serial terminal application that may
have been opened on the enumerated COM port for the CCM Evaluation kit.
1. Download the following Quick Connect package and extract Infineon-qc-utility.zip.
https://quickconnectexpresslinkutility.s3.us-west-2.amazonaws.com/infineon/QuickConnect_infineon_v1.0.zip

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Quick evaluation of the CCM device
2. Extract the utility package inside the Infineon-qc-utility folder with respect to your OS.
3. Connect the IFW956810 single-band Wi-Fi 4 Cloud Connectivity Manager evaluation kit to the PC using either
the Type-C connector or Type-A male to Type-C female cable and determine the serial port.
4. Fill the details in the config.txt file to have the correct serial port, as well as Wi-Fi SSID and password.
5. Execute the executable in the Quick Connect package.
Note: Run the Start_Quick_Connect.exe in the case of Windows OS.
Note: In the case of Linux and mac, go inside the extracted folder, open the terminal, and enter the following
commands
chmod +x Start_Quick_Connect (for giving Executable permission)
. / Start_Quick_Connect
5. The workflow prompts you to open the visualizer in your browser. You can either select Yes or copy and
paste this link into the browser. After a few seconds, you will see random values being published from the
IFW956810 CCM evaluation kit on the visualizer.
Figure 6 Random values displayed in visualizer from IFW956810 CCM evaluation kit
Note: Visualizer is a GUI that displays random data points getting published to the AWS staging account as a
graph.

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Getting started with using an AWS account
6Getting started with using an AWS account
Connect the IFW956810 single-band Wi-Fi 4 Cloud Connectivity Manager evaluation kit to the PC as mentioned
in Section 5.1.
Steps in sections 6.1 to 7.2 are required only for the first time you connect. The IFW56810-00 module will
remember its configuration and will be ready to connect to your AWS account automatically.
6.1 Creating your AWS account and permissions
Follow the instructions in the Amazon documentation (Set up your AWS Account) to create your account and
get started:
1. Sign up for an AWS account or log in to your existing account.
2. Open the AWS IoT console.

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Register the kit to your AWS development account
7Register the kit to your AWS development account
For registering your CCM kit to your AWS development account, you can select one of these two methods:
•Infineon CIRRENT Cloud flow
•AWS flow
Note: The process of registering a single module to the AWS IoT Cloud is simpler with the AWS flow, whereas the
Infineon CIRRENT Cloud flow is more appropriate for registering a batch of modules (one batch of
CCM modules comes with a single QR Code) to the AWS IoT Cloud.
While transitioning from the Infineon CIRRENT Cloud flow to the AWS flow, or vice versa, input the command
"AT+FACTORY_RESET" into the serial terminal.
7.1.1 Infineon CIRRENT Cloud flow
The CIRRENT Cloud flow uses the Cloud ID solution to simplify the process of registering and connecting the kit
to your AWS developer account. This method eliminates several manual steps that need to be performed in the
AWS flow. Learn more about this Cloud ID solution here.
At a high level, the CIRRENT Cloud flow performs the following functions to connect the kit to your AWS
developer account:
1. Binds your kit to your CIRRENT account.
2. Provisions the AWS resources for the kit on your AWS account.
The resources include the Thing (cloud representation of your physical device), device certificate
(associates the device certificate from the CIRRENT Cloud to your Thing), and policies (creates and
associates AWS IoT Thing access policies to your Thing)
3. Enables the kit to connect to your AWS account.
The endpoint of your AWS development account is required for the kit to connect to your AWS account.
The CIRRENT Cloud pulls the AWS endpoint required from your AWS account and automatically pushes it to
the kit. This enables the kit to connect to your AWS development account.
The CIRRENT Cloud flow is very close to the production flow and demonstrates the ease of securely connecting
your products to the product cloud. The CIRRENT Cloud is preloaded with the device certificate of all
IFW56810-00 modules, thus offloading the effort of managing device certificates from product manufacturers.
Figure 7 illustrates how to interact with the AWS developer account using the CIRRENT Cloud flow. Each of
these steps are elaborated in the following sections.

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Register the kit to your AWS development account
AWS ConsoleCIRRENT Console
Verify Kit Binding
Execute CloudFormation Template
(Once per AWS account in a region)
Create Product Cloud API
(Once per AWS account and
CIRRENT account)
Serial Terminal
Connect to Wi-Fi
Interact with AWS Cloud
Provision resources and
prepare to connect the kit to
your AWS account
Interact with the device
Figure 7 AWS Developer interacting using CIRRENT Cloud Flow
7.1.1.1 Verify the binding of your device to your CIRRENT account
Your kit is already bound to your CIRRENT account when you registered your kit through the quick start guide
provided along with the kit. If you landed on this page without following the quick start guide, see the
document provided along with your kit.
Do the following to verify the kit binding:
1. Log in to your CIRRENT account at https://osts.infineon.com/login and choose your sub-account to which
you binded your kit while following Quick start guide.
2. On the home page, select CIRRENT Cloud ID, and you will be redirected to the binding page.
3. Check your sub account number as follows:

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Register the kit to your AWS development account
4. Locate your device listed on the page.
Binding of the device to the CIRRENT account is required to provision the devices to the AWS developer account
using Cloud ID.
7.1.1.2 Execute the CloudFormation template
CloudFormation is an AWS service that helps in setting up the required resources in AWS through a template
(JSON or YAML file). Executing a CloudFormation template creates a stack in the AWS CloudFormation service.
A stack is a collection of AWS resources.
The template for creating AWS resources required for connecting the IFW956810 evaluation kit to the AWS IoT
Core is already created by Infineon and stored in Amazon S3 storage. The stack created by this template
provides some outputs that can be used to establish a channel of back-end cloud communication between
your CIRRENT account and your AWS account.
You need to execute the CloudFormation template only once per AWS account in a region. The same stack can
be reused to provision multiple kits to the AWS account in that region.
Do the following to execute the Infineon-provided CloudFormation template:
1. Click on the following link to execute the CloudFormation template. By default, the link uses the us-west-1
region.
https://us-west-1.console.aws.amazon.com/cloudformation/home?region=us-west-
1#/stacks/create/template?stackName=infineon-iot-quickstart&templateURL=https://cirrent-
quickstarts.s3.us-west-2.amazonaws.com/infineon-iot-quickstart.yaml
You can change the region in which you want to execute this template by changing the region=us-west-1
in this link to your required region. See the Choosing a Region section of the AWS documentation.
2. On the Create Stack page in the AWS CloudFormation service with the Infineon CloudFormation template
preloaded, click Next.
3. On the Step 2 page, retain all parameters at their default values, and click Next.
4. On the Step 3 page, retain all parameters at their default values, and click Next.
5. Select the boxes to provide permissions to access the resources required by the CloudFormation template.

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6. Click Create stack.
7. Wait for up to five minutes for the stack creation to complete.
This stack creates an infrastructure to enable provisioning the required resources for the IFW56810-00
device through the CIRRENT Cloud.
8. Click Outputs.
The output of the stack that you created is shown on this page. You must enter these details in the CIRRENT
Console in Step 3of Section 7.1.1.3.

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7.1.1.3 Create Product Cloud API
Product Cloud API is a software interface that allows the CIRRENT Cloud to communicate with your AWS
developer account. To achieve this, Product Cloud API requires certain AWS developer account details
including the AWS Gateway ID obtained as part of the AWS CloudFormation template output. This API must be
executed once per CIRRENT account. The same API can be used to provision multiple kits from your CIRRENT
account to your AWS account.
1. Click the menu button on the top left of the screen and select the Provisioning menu.
2. On the Provisioning tab, click Add Cloud API.
3. When prompted, enter your AWS account parameters.
Copy the AccountId, GatewayId, Region, and Stage values from your AWS Console obtained in Step 8of
Section 7.1.1.2 and enter them in the Create Cloud API pop-up on the CIRRENT Console, and then click
Create.

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7.1.1.4 Provision and prepare to connect the kit to your AWS account
1. Click the menu button onthe top left of the screen and select the Binding menu.
2. Click Edit.
3. Click the drop-down list in the API Endpoint column.
4. Choose the Product Cloud API created in Section 7.1.1.3.
5. Click Save.
6. Click Provision now.
This performs two functions:
a) Creates the Thing for your device in the AWS Console and attaches the related policy and device
certificate.
b) Pulls the AWS endpoint required by the device to connect to your AWS account and pushes it to the
device.
When the kit is connected to the Wi-Fi network, it will pull this endpoint from the CIRRENT Cloud and
connect to the AWS Cloud automatically.
7. Jump to Section 7.2 to connect your kit to Wi-Fi.
Note: To connect one more kit using the CIRRENT Cloud flow, skip section 7.1.1.2 if you are using the
same AWS account and section 7.1.1.3 if you are using the same CIRRENT Cloud account. Follow
only section 7.1.1.3 and Section 7.1.1.4.
7.1.2 AWS flow
The following steps will help you register your kit to the AWS account. Skip the following section if you already
registered your kit using the Infineon CIRRENT Cloud flow.
7.1.2.1 Configure the AWS Thing
1. Open the AWS IoT Console.
2. From the left pane, select Manage, and then select Things.
3. Click Create Things.
4. On the Create things page, select Create single thing, and then click Next.
5. In the terminal application, type the following command:
AT+CONF? ThingName

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6. Copy the returned string (a sequence of alphanumeric characters) from the terminal.
7. On the console, on the Specify thing properties page, paste the copied string from the terminal into the
Thing name field under Thing properties.
8. Leave other fields at their default values, and then click Next.
7.1.2.2 Configure device certificate
7.1.2.2.1 Prepare device certificate
1. In the terminal application, type the following command:
AT+CONF? Certificate pem
You will receive the device certificate in PEM format as part of the response.
2. Copy the returned string (a longer sequence of alphanumeric symbols), and save it into a text file on your
host machine as “ThingName.cert.pem”.
Replace “ThingName”with the name of the Thing obtained in Section 7.1.2.1.
7.1.2.2.2 Attach device certificate to the Thing
1. On the Configure device certificate page in the AWS Console, select Use my certificate, and then choose
CA is not registered with AWS IoT.
2. Under Certificate, select Choose file.
3. Double-click the ThingName.cert.pem file created in in Section 7.1.2.2.1.
4. Under Certificate Status, select Active.
5. Click Next.
7.1.2.3 Attach policies to certificate
1. Click Create to create a policy. This opens a new tab.
2. Enter the policy name (e.g., “IoTDevPolicy”) and click Advanced mode.
3. Copy the following section into the console:
{ "Version": "2012-10-17", "Statement": [ { "Effect": "Allow", "Action":
"*", "Resource": "*" } ] }
Note: The examples in this document are intended only for development environments. All devices in
your end product must have credentials with privileges that authorize only intended actions on
specific resources. The specific permission policies can vary for your use case. Identify the
permission policies that best meet your business and security requirements.
4. Click Create.
7.1.2.4 Configure endpoint
1. In the AWS IoT Console, choose Settings, and then copy your account endpoint string under Device data
endpoint.
2. Type the following AT command in the serial terminal to configure the endpoint:
AT+CONF Endpoint= endpoint copied in step 1.
The above step replaces the configured default endpoint used for evaluating the quick connect flow.

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7.2 Connect the kit to Wi-Fi
You can either follow Section 7.2.1 or Section Error! Reference source not found. to connect the IFW956810 C
CM evaluation kit to Wi-Fi.
A Wi-Fi onboarding mechanism is required for IoT products that do not have a display to enter Wi-Fi SSID and
password. Use one of the following methods to connect the IFW956810 CCM evaluation kit to Wi-Fi.
Note: Connect the kit only to a 2.4-GHz Wi-Fi network.
7.2.1 Using AT commands
AT commands provide a simple method of Wi-Fi onboarding in a development environment.
Type the following commands in sequence in the terminal application:
AT+CONF SSID=<your router ssid>
AT+CONF Passphrase=<your router passphrase>
Note: Your local router’s SSID and passphrase are stored securely inside the IFW56810-00 CCM module. While the
SSID can be retrieved later (i.e., for debugging purposes), any attempt to retrieve the passphrase will return an
error.
7.2.2 Using CIRRENT Wi-Fi onboarding app
The CIRRENT Cloud solution from Infineon provides an effective Wi-Fi onboarding service through the CIRRENT
Wi-Fi onboarding app for any IoT product. The IFW956810 CCM evaluation kit supports onboarding through
either Bluetooth® LE or SoftAP.
1. Download and install the CIRRENT Wi-Fi onboarding app from Google Play Store for Android or iOS App
Store for iOS on your mobile phone. Scan the following QR code relevant to your mobile device:
Android
iOS
2. Type the following command in the serial terminal on the PC:
AT+CONFMODE
You should receive the “OK CONFMODE Enabled”response from the module.
3. Open the CIRRENT Wi-Fi onboarding app.
You can skip the sign in to perform Wi-Fi onboarding.
4. From the menu, select Configuration and then choose either BLE or Soft AP onboarding.
5. Follow the onscreen instructions and enter the Wi-Fi router’s SSID and password.

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7.3 Connect and interact with the AWS Cloud
Use the MQTT client in the AWS IoT Console to monitor the communication between your evaluation kit and
the AWS Cloud.
1. Navigate to the AWS IoT Console (https://console.aws.amazon.com/iot/).
2. In the navigation pane, select Test and then click MQTT Test Client.
3. Navigate to the additional configuration and select Display payloads as strings (these are more accurate)
under the MQTT payload display.
4. In Subscribe to a topic panel, enter #, and then click Subscribe.
7.3.1 Connect to the AWS IoT Core
CIRRENT Cloud flow
Enter the following AT commands in the serial terminal
AT+CONNECT
After a few seconds, you will receive the message “OK 1 CONNECTED”. The above command allows your
device to connect to the default configured endpoint used for quick evaluation flow over your configured
SSID.
AT+CLOUD_SYNC
Wait for a minute or two while the device pulls the endpoint from the CIRRENT Cloud and connects to the
AWS IoT Core.
Note: The above AT command will replace default endpoint used for quick evaluation flow with your AWS account
endpoint and automatically switches the connection to the new endpoint
You can verify the endpoint present in the device using the following AT command “AT+CONF? Endpoint”
AWS flow
Enter the following command in the serial terminal to establish a secure connection to the AWS IoT Core if
you followed AWS flow
AT+CONNECT
After a few seconds, the device will connect to the AWS IoT Core and you will receive the message
“OK 1 CONNECTED”.

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AT commands to send and receive data
8AT commands to send and receive data
Wait for a response from the IFW956810 CCM evaluation kit in the serial terminal after entering each AT
command.
8.1 Publish to a topic
Enter the following commands in sequence in the serial terminal:
AT+CONF Topic1=/MyPubTopic
AT+SEND1 hello world
The Hello world message gets dispayed on the AWS IoT console.
8.2 Subscribe to a topic
1. Enter the following commands in sequence in the serial terminal:
AT+CONF Topic2=/MySubTopic
AT+SUBSCRIBE2
2. Do the following on the AWS IoT Console:
a) Select the MQTT test client and type /MySubTopic in the Topic filter and press Subscribe.
b) Then go to Publish to a topic tab and type /MySubTopic in the Topic name field. Keep the “Hello from
the AWS IoT Console” message.
c) Click Publish.
3. On your serial terminal, enter the following command:
AT+GET2
You will receive the message “OK Hello from the AWS IoT Console”.
Note: The IFW56810-00 CCM module is capable of queuing 32 MQTT messages from AWS IoT core.