AIROC™ Bluetooth® SDK 4.6.3 Release Notes

About This Document

This document details the AIROC™ Bluetooth® SDK version 4.6.3, an update to version 4.6.2. It is designed for Infineon's AIROC™ Wi-Fi & Bluetooth® combo chips, facilitating the development of IoT solutions like smartwatches and medical devices.

What's Changed

Features and Modifications

• Firmware updated to support Bluetooth® 5.4 certification for CYW43012 and CYW20706.
• Internal symbols previously exposed in WICED Studio are now exposed in ModusToolbox™.

Bug Fixes

• Corrected display of core Bluetooth® spec version in tools.
• Resolved audio issues in A2DP streaming for specific development kits.
• Fixed various stability and connection issues across different development boards and scenarios.
• Addressed discrepancies in readme files and OTA log versions.
• Fixed issues related to I2S polarity, OTA failures, and Bluetooth® LE security connections.
• Resolved problems with RFCOMM serial port communication and incoming call handling.
• Fixed issues with HID_LE_REMOTE_CONTROL and API return values.

What's Included

The AIROC™ Bluetooth® SDK 4.6.3 includes:

• Bluetooth® firmware
• Platform and board support packages
• Utilities such as BTSpy trace, Manufacturing Bluetooth® test tool, Client Control, and Mesh Client Control
• Peer applications for OTA and Mesh
• Connectivity APIs for simplified Bluetooth®/Bluetooth® LE programming
• Sample applications and complex code examples utilizing various APIs and middleware.

Design Impact

Code examples for AIROC™ Bluetooth® SDK 4.6.3 can be acquired from the Infineon GitHub repository. To avoid overwriting previous asset versions when updating from an earlier SDK, it is recommended to create a new workspace project.

Supported Boards

A comprehensive list of supported boards and their corresponding MCUs and connectivity is provided in the document.

Known Issues/Limitations

This section outlines various known issues and limitations encountered with the SDK, along with their workarounds or targeted resolutions in future releases. Issues range from documentation inaccuracies and platform support limitations to specific functional problems with Bluetooth® features and development tools.

Open Source

Portions of this software package are licensed under free and/or open-source licenses, such as the GNU General Public License. These are subject to their own applicable license agreements.

Further Reading

For more information, refer to the ModusToolbox™ software documents, including installation guides, API documentation, and IDE guides. Additional resources include device datasheets and application notes. Contacting a sales representative is also recommended for further assistance.