CMSIS-RTX version is officially updated upon releases of the CMSIS-RTX pack.

The table below provides information about the changes delivered with specific versions of CMSIS-RTX since released in its own pack. For details about older versions of RTX5 refer to the CMSIS 5 Documentation.

Version

Description

v5.9.0

Enhance conditions to support Cortex-M52
Remove dependency on Device:Startup component

v5.8.0

First release of separate pack shipping RTX5 RTOS implementation for CMSIS-RTOS2 API.

Changes since RTX 5.5.4:

Based on CMSIS-RTOS API V2.3.0 (processor affinity not supported).
Added support for Process Isolation: MPU Protected Zones, Safety Classes, Thread Watchdogs.
Requires CMSIS:OS Tick:SysTick component.
Reduced component variants: Library (Library_NS replacement), Source (Source_NS replacement).
Libraries for Arm Compiler 6 built with default wchar and enums size.
Added pre-built libraries for GCC, CLANG and IAR.
Removed support for legacy Arm Compiler 5.
Fixed osMessageQueueGetSpace when called from ISR after osMessageQueuePut and before returning from ISR.
Added de-allocation of Arm C library thread data (libspace) when thread is terminated.
Added Thread Entry wrapper (compatible with GDB stack unwind).
Updated SysTick implementation for OS Tick (initial count value).