IF91x – Wi-Fi Scan Demo (ModusToolbox™ Flow)

  1. Overview
  2. Prerequisites
  3. Create the Wi-Fi Scan Project
    1. Launch IDE
    2. Confirm Project Location
    3. Build the Project
  4. Prepare Flashing Tools
    1. Identify UART Ports
    2. Flash the Firmware
    3. View Wi-Fi Scan Results
  5. Reference
Veda IF912Veda IF913

Overview

This guide describes how to:

  1. Build the Wi-Fi Scan example in ModusToolbox™
  2. Generate the .hex image
  3. Flash the image to the IF91x DVK
  4. View Wi-Fi scan results via UART

Note: This guide is current as of February 2026.

Prerequisites

Install the following:

Create the Wi-Fi Scan Project

Launch IDE

Start Eclipse for ModusToolbox™ 2025.8.

Click New Application.

image-20260211-191401.png

Choose CYW955913EVK-01 as the kit name, then click Next.

image-20260211-191330.png

Select Wi-Fi Scan and press Create.

image-20260211-191552.png

Confirm Project Location

By default, the following folders should be created:

Wi-Fi_Scan
mtb_shared

They are typically located at:

C:\Users\<username>\mtw

You may also navigate using:

%USERPROFILE%\mtw

The project should appear in the left panel under Project Explorer.

image-20260211-192628.png

If Project Explorer is not visible:

Window → Show View → Project Explorer
da7e01d5-d211-49ba-ba75-b621e72e3fe7.png

Build the Project

From the menu:

Project → Build All
image-20260211-192933.pngAfter a successful build, the generated .hex file will be located at:
C:\Users\<username>\mtw\Wi-Fi_Scan\build\APP_CYW955913EVK-01\Debug\mtb-example-threadx-wifi-scan_download.hex

Prepare Flashing Tools

Download and extract [Veda IF91x] Firmware_Script_Log_TestCmd.7z from our website: https://connectivity-staging.s3.amazonaws.com/files/Veda IF91x_Firmware_Script_Log_TestCmd.7z

Copy the generated .hex file into:
<Extracted Folder>\Files

Identify UART Ports

Connect the IF91x DVK via USB.

Open device manager. You will see two COM ports.

image-20260211-195133.png

To identify them:

  1. Right-click each COM port → Properties
  2. Go to Details

  3. Select Hardware Ids

    image-20260211-194723.png

Look for:

InterfaceIdentifierPurpose
HCI UARTMI_01Used for flashing
WLAN UARTMI_03Used for Wi-Fi scan output

Example:

  • MI_01 → COM6 (HCI UART)
  • MI_03 → COM5 (WLAN UART)

Flash the Firmware

The below sequence puts the IF91x DVK into HCI download mode for flashing.

  • Press and hold the RECOVERY button (labeled c below)
  • While holding RECOVERY, press and hold the RESET button (labeled d below)
  • Continue holding both buttons for about 1 second
  • Release the RESET
  • Finally, release the RECOVERY
image-20260211-203013.pngOpen Command Prompt in the extracted Files directory.

Run:

ifx_flasher_cli.exe -b if91x <HCI_COM_PORT> -f mtb-example-threadx-wifi-scan_download.hex -ce

Example with the above setup:

ifx_flasher_cli.exe -b if91x COM6 -f mtb-example-threadx-wifi-scan_download.hex -ce

Expected output:

IFX Flasher CLI v1.0.0
2026-02-11 15:26:48,966 | INFO | Entering HCI download mode on board E664A836A33A412A
2026-02-11 15:26:49,175 | INFO | Loading minidriver...
2026-02-11 15:26:50,906 | INFO | Performing chip erase...
2026-02-11 15:26:53,686 | INFO | Chip erase finished
2026-02-11 15:26:53,686 | INFO | Changing baud to 3000000
2026-02-11 15:26:53,860 | INFO | Programming firmware... (512190 bytes)
2026-02-11 15:27:27,599 | INFO | Finished programming!

View Wi-Fi Scan Results

  1. Open TeraTerm
  2. Select the WLAN UART COM port (MI_03, COM5 in this example)
  3. Press RESET on the board

The terminal should display Wi-Fi scan results:

image-20260211-195245.png

Reference

For more information, see the attached document from Infineon.

https://connectivity-staging.s3.amazonaws.com/files/CYW55913_Software_Develop_Setup_20260123.pdf