RS9116 Platform SDK Version 2.12.1 (September 10, 2025) - Release Notes#
The RS9116W Platform software development kit (SDK/SAPI) provides platform features on Silicon Labs SiWx91x microcontrollers, including peripherals, drivers, and services.
Click here for earlier releases.
Release Summary#
Key Features | API Changes | Bug Fixes | Chip Enablement
Key Features#
None
API Changes#
None
Bug Fixes#
Fixed compilation errors if UART interface is enabled.
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#
None
Enhancements#
None
Removed Features#
None
Deprecated Features#
None
API Changes#
New APIs | Modified APIs | Removed APIs | Deprecated APIs
New APIs#
None
Modified APIs#
None
Removed APIs#
None
Deprecated APIs#
None
Bug Fixes#
| ID | Issue Description | GitHub / Salesforce Reference (if any) | Affected Chip Revision, Hardware, Host Interfaces |
|---|---|---|---|
| 815828 | Compilation errors if UART is enabled in SAPI version 2.5.0.26 | None |
|
Chip Enablement#
None
Application Example Changes#
New Examples | Modified Examples | Removed Examples | Deprecated Examples
New Examples#
None
Modified Examples#
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, Host Interfaces |
|---|---|---|---|---|
| 1502405 | Chip Revision 1.3 does not support low-power mode optimization using the EXT_FEAT_LOW_POWER_MODE bit setting. Enabling this bit may cause the system to hang. | None | None |
|
| 1502403 | When coexistence (coex) is configured, the RS9116 may enter powersave mode before the configured monitor interval for inactivity. | None | None |
|
| 1502453 | The FTP client application does not work with EFx32/STM32 when an RTOS is used. | None | None |
|
| 1502452 | The HTTP OTA update application does not work with EFR32 and EFM32 when an RTOS is used. | None | None |
|
| 1502446 | Firmware update does not work for the EFM32 platform. | None | None |
|
| 1502450 | SAPI driver with UART host interface is only supported on bare metal. | None | None |
|
| 1502400 | Powersave without RAM retention does not work when the SPI interface is used. | None | None |
|
| 1077954 | MQTT receive may encounter failures in STA + AP concurrent mode. | None | None |
|
| 1221686 | On the EFM platform, standby-associated listen interval current consumption is higher than expected. | None | None |
|