The following section provides an overview of the directory structure and the files that are relevant for the user's for CMSIS-RTOS RTX v5. The following directory references start below the CMSIS pack installation path, for example ARM/CMSIS/version/CMSIS/RTOS2.

RTX v5 Directory Structure

The CMSIS-RTOS RTX v5 is delivered in source code and several examples are provided.

Directory	Content
Include	Header files: cmsis_os2.h for CMSIS-RTOS C API v2 and os_tick.h for OS Tick API.
Source	Generic OS tick implementations for various processors based on OS Tick API.
Template	CMSIS-RTOS API v1 template source and header file.
RTX	Directory with RTX specific files and folders. Also contains the component viewer description file.
RTX/Config	CMSIS-RTOS RTX configuration files RTX_Config.h and RTX_Config.c.
RTX/Examples	Example projects that can be directly used in development tools.
RTX/Include	RTX v5 specific include files.
RTX/Include1	CMSIS-RTOS v1 API header file.
RTX/Library	Pre-built libraries (see next table for details).
RTX/Source	Source code.
RTX/Template	User code templates for creating application projects with CMSIS-RTOS RTX v5.

RTX v5 Library Files

The CMSIS-RTOS RTX Library is available pre-compiled for ARMCC and GCC compilers and supports all Cortex-M processor variants in every configuration , including Arm Cortex-M23, Cortex-M33 and Cortex-M35P.

Library File	Processor Configuration
Library/ARM/RTX_CM0.lib	CMSIS-RTOS RTX Library for ARMCC Compiler, Cortex-M0 and M1, little-endian.
Library/ARM/RTX_CM3.lib	CMSIS-RTOS RTX Library for ARMCC Compiler, Cortex-M3, M4, and M7 without FPU, little-endian.
Library/ARM/RTX_CM4F.lib	CMSIS-RTOS RTX Library for ARMCC Compiler, Cortex-M4 and M7 with FPU, little-endian.
Library/ARM/RTX_V8MB.lib	CMSIS-RTOS RTX Library for ARMCC Compiler, Armv8-M Baseline.
Library/ARM/RTX_V8MBN.lib	CMSIS-RTOS RTX Library for ARMCC Compiler, Armv8-M Baseline, non-secure.
Library/ARM/RTX_V8MM.lib	CMSIS-RTOS RTX Library for ARMCC Compiler, Armv8-M Mainline.
Library/ARM/RTX_V8MMF.lib	CMSIS-RTOS RTX Library for ARMCC Compiler, Armv8-M Mainline with FPU.
Library/ARM/RTX_V8MMFN.lib	CMSIS-RTOS RTX Library for ARMCC Compiler, Armv8-M Mainline with FPU, non-secure.
Library/ARM/RTX_V8MMN.lib	CMSIS-RTOS RTX Library for ARMCC Compiler, Armv8-M Mainline, non-secure.
Library/GCC/libRTX_CM0.a	CMSIS-RTOS libRTX Library for GCC Compiler, Cortex-M0 and M1, little-endian.
Library/GCC/libRTX_CM3.a	CMSIS-RTOS libRTX Library for GCC Compiler, Cortex-M3, M4, and M7 without FPU, little-endian.
Library/GCC/libRTX_CM4F.a	CMSIS-RTOS libRTX Library for GCC Compiler, Cortex-M4 and M7 with FPU, little-endian.
Library/GCC/libRTX_V8MB.a	CMSIS-RTOS libRTX Library for GCC Compiler, Armv8-M Baseline.
Library/GCC/libRTX_V8MBN.a	CMSIS-RTOS libRTX Library for GCC Compiler, Armv8-M Baseline, non-secure.
Library/GCC/libRTX_V8MM.a	CMSIS-RTOS libRTX Library for GCC Compiler, Armv8-M Mainline.
Library/GCC/libRTX_V8MMF.a	CMSIS-RTOS libRTX Library for GCC Compiler, Armv8-M Mainline with FPU.
Library/GCC/libRTX_V8MMFN.a	CMSIS-RTOS libRTX Library for GCC Compiler, Armv8-M Mainline with FPU, non-secure.
Library/GCC/libRTX_V8MMN.a	CMSIS-RTOS libRTX Library for GCC Compiler, Armv8-M Mainline, non-secure.