Infineon AIROC IFW56810 Manual de usuario

 
Application Note Please read the Important Notice and Warnings at the end of this document 002-34322 Rev. *A 
www.infineon.com page 1 of 22 2021-12-14 
AN234322 
 
 
Getting started with AIROC™ IFW56810 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 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 AT commands. 
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 
4Getting started ...................................................................................................................... 6 
4.1 Connect the kit to the PC ........................................................................................................................6 
4.2 Set up the host machine .........................................................................................................................6 
4.3 Set up your AWS account and permissions............................................................................................6 
4.4 Register the kit to your AWS development account ..............................................................................7 
4.4.1 CIRRENT cloud flow............................................................................................................................7 
4.4.1.1 Bind your device to your CIRRENT account .................................................................................7 
4.4.1.2 Execute the CloudFormation template........................................................................................8 
4.4.1.3 Create Product Cloud API .............................................................................................................9 
4.4.1.4 Provision and connect the kit to your AWS account..................................................................11 
4.4.2 AWS flow...........................................................................................................................................11 
4.5 Connect the kit to Wi-Fi.........................................................................................................................12 
4.5.1 Using Cirrent Wi-Fi onboarding app................................................................................................13 
4.5.2 Using AT commands ........................................................................................................................13 
4.6 Connect and interact with the AWS Cloud ...........................................................................................13 
4.6.1 Connect ............................................................................................................................................14 
4.6.2 Send data to the AWS Cloud............................................................................................................14 
4.6.3 Receive data and commands from the cloud .................................................................................14 
5Advanced AT commands ........................................................................................................15 
5.1 Publish to a non-default topic ..............................................................................................................15 
5.2 Subscribe to a non-default topic ..........................................................................................................15 

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Table of contents

6Performing firmware over-the-air update................................................................................16

6.1 Prerequisites..........................................................................................................................................16

6.2 Create a firmware update job in AWS IoT.............................................................................................16

6.3 Monitor and apply the new firmware update for the IFW56810 module ............................................17

7Setting up a serial terminal on the PC ......................................................................................18

7.1 Determine the COM port number .........................................................................................................18

7.2 Serial terminal settings.........................................................................................................................19

8FAQs ....................................................................................................................................20

Revision history.............................................................................................................................21

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Getting started with AIROC™ IFW56810 Single-band Wi-Fi 4 Cloud

Connectivity Manager

Overview

1Overview

AIROC™IFW56810 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 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 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 CCM module through AT commands over UART. The

IFW56810 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 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 Single-

band Wi-Fi 4 Cloud Connectivity Manager Module

•USB Type-A (male) to Type-C (female) cable

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Hardware

3Hardware

The IFW956810 CCM evaluation kit consists of an IFW56810 single-band Wi-Fi 4 Cloud Connectivity Manager

module with powerful processing capability, 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 as shown in

Figure 3 before connecting USB dongle to the PC. 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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Getting started

4Getting started

4.1 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 4 Connect the USB dongle to the PC

4.2 Set up the host machine

Run a serial terminal to communicate with the kit over USB by choosing higher of the two enumerated COM

ports with the following configuration.

•Baud rate: 115,200

•Bits: 8

•Parity: None

•Stop: 1

•Flow control: None

•Local Echo: Yes

•End of Line: Line Feed

See Section 7for more details.

Once you open the serial terminal, type AT+CONF? About in the serial terminal.

You should see a response “OK Infineon IFW56810 CCM”.

Steps in sections 4.3 to 4.5 are required only for the first time you connect. The IFW56810 module will

remember its configuration and will be ready to connect to your AWS account automatically.

Jump to Section 4.6 if the kit has already been configured to connect to AWS.

4.3 Set up your AWS account and permissions

Follow the instructions in Amazon documentation (Set up your AWS Account) to create your account and get

started.

1. Sign up for an AWS account.

2. Create a user and grant permissions for access to AWS IoT resources.

3. Open the AWS IoT Console.

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Getting started

4.4 Register the kit to your AWS development account

You can register your kit to your AWS development account using either Infineon’s CIRRENT cloud flow or AWS

flow.

The CIRRENT cloud flow uses the Cloud ID solution to simplify the process of connecting the kit to your AWS

developer account by eliminating several manual steps that need to be performed in the AWS flow.

Learn more about the Cloud ID solution here.

At a high level, CIRRENT cloud flow performs the following functions to connect the kit to your 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),

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.

CIRRENT cloud flow is very close to the production flow and demonstrates the ease of securely connecting your

products to the product cloud. CIRRENT cloud is preloaded with the device certificate of all IFW56810 modules,

thus offloading the effort of managing device certificates from product manufacturers.

See Section 4.4.1 for CIRRENT cloud flow or jump to Section 4.4.2 for AWS flow.

4.4.1 CIRRENT cloud flow

4.4.1.1 Bind 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://console.cirrent.com/.

2. On the panel on the left of the screen, select Device Management > Cloud ID, and then select the Binding

tab.

Alternatively, click this link to go directly to this page.

3. Choose your account number as follows:

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Getting started

4. Locate your device listed on the page.

4.4.1.2 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 AWS IoT Core

is already created by Infineon and stored in Amazon S3 storage. The stack created by this template provides

certain 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 Choosing a Region on AWS documentation.

2. On the Create Stack page in the AWS CloudFormation service with the Infineon CloudFormation template

preloaded, click Next.

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Getting started

3. Click Next in Step 2.

4. Click Next in Step 3.

5. Select the boxes to provide permissions to access the resources required by the CloudFormation template.

6. Click Create stack.

Wait for up to five minutes for the stack creation to complete.

4.4.1.3 Create Product Cloud API

Product Cloud API is used to communicate with your AWS account. 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. Navigate to your CIRRENT console and go to Provisioning tab or use this link directly.

2. Click Add Cloud API.

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Getting started

3. When prompted, enter your AWS account parameters.

4. Navigate back to your AWS CloudFormation page.

5. Click Outputs.

6. Copy the AccountId, GatewayId, Region, and Stage values from your AWS Console to the CIRRENT

console.

7. In the CIRRENT console’s Create Cloud API window, click Create.

8. Select the created Product Cloud API from the dropdown list next to Product Cloud API.

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