RS9116 Bluetooth LE SDK Version 2.12.1 (August 29 2025) - Release Notes#

RS9116

Release Summary#

Key Features | API Changes | Bug Fixes | Chip Enablement

Key Features#

BT-Classic#

  • BT Dual Mode

  • GAP (Generic Access Profile)

  • SDP (Service Discovery Protocol)

  • SPP (Serial Port Profile)

  • SSP (Secure Simple Pairing)

  • A2DP (Advanced Audio Distribution Profile) – Source Streaming

  • AVRCP (Audio/Video Remote Control Profile)

  • AVDTP Stats (Audio/Video Distribution Transport Protocol)

  • Enhanced Data Rate (EDR)

  • Role Switch

  • Sniff Mode

  • Adaptive Power Control

  • Wireless Power Save

Bluetooth Low Energy#

  • GAP

  • Generic Attribute Protocol (GATT)

  • Attribute Protocol (ATT)

  • Security

  • HID (Human Interface Device Profile)

  • LL Privacy 1.2

  • Accept List

  • Directed Advertising

  • LE PHY and Coded PHY

  • Simultaneous scanning on 1Mbps and Coded PHY

  • LE dual role topology

  • LE data packet length extensions (DLE)

  • Asymmetric PHYs

  • LE channel selection algorithm 2 (CSA#2)

  • LE Secure connections

  • Extended Advertising

  • Extended Advertising Scanning

  • LE periodic advertising synchronization

  • Periodic Advertising

  • Periodic Advertising List

  • Periodic Advertising Scanning

  • Wireless Power Save

API Changes#

  • APIs have been added to set and retrieve the BTC and BLE country region settings for RS9116 ACx modules.

Bug Fixes#

None

Chip Enablement#

None

Key Features#

New Features | Enhancements | Removed Features | Deprecated Features

Note: See Feature Matrix for a list of any applicable APIs, examples, software variants, modes, hardware, and host interfaces for each feature.

New Features#

  • For RS9116 ACx modules, a separate country region command has been added for BLE and BTC. Users can independently configure the BLE and BTC region settings before connecting to an Access Point (AP). After a successful AP connection, the BLE and BTC region settings are automatically updated to match the region supported by the AP.

  • Full production (FP) characterization has been completed for ACx modules.

Enhancements#

None

Removed Features#

None

Deprecated Features#

None

API Changes#

New APIs | Modified APIs | Removed APIs | Deprecated APIs

New APIs#

  • rsi_bt_set_country_region

  • rsi_bt_get_country_region

Modified APIs#

None

Removed APIs#

None

Deprecated APIs#

None

Bug Fixes#

None

Removed Examples#

None

Deprecated Examples#

None

Known Issues and Limitations#

ID Issue or Limitation Description GitHub / Salesforce Reference (if any) Workaround (if any) Affected Chip Revision, Hardware Modules, Host Interfaces
1393624 Bluetooth LE Dual Role functionality fails when Bluetooth Classic is configured as a peripheral device while BLE Dual Role mode is simultaneously enabled. None None
  • Hardware boards - All
  • Chip revisions - 1.3, 1.4, 1.5
  • interface-name
1378574 Repeated passkey strings occur when the RS9116 module operates as a peripheral with power save functionality during multiple reconnection iterations. None None
  • Hardware boards - All
  • Chip revisions - 1.3, 1.4, 1.5
  • interface-SPI
1496073 The RS9116 module does not appear in Bluetooth scan results when running the `bt_power_save example` on 1.4Si A7 hardware boards. None None
  • Hardware boards - 1.4Si A7
  • Chip revisions - 1.4
  • interface-SPI