CMSIS  Version 5.7.0
Software Interface Standard for Arm Cortex-based Microcontrollers
Revision History

The following table shows the overall high-level history of the various CMSIS releases. In addition, each CMSIS component has its own release history:

Version Description
5.7.0
  • CMSIS-Build 0.9.0 (beta)
    • Draft for CMSIS Project description (CPRJ)
  • CMSIS-Core (Cortex-M) 5.4.0
    • Cortex-M55 cpu support
    • Enhanced MVE support for Armv8.1-MML
    • Fixed device config define checks.
    • L1 Cache functions for Armv7-M and later
  • CMSIS-Core (Cortex-A) 1.2.0
    • Fixed GIC_SetPendingIRQ to use GICD_SGIR
    • Added missing DSP intrinsics
    • Reworked assembly intrinsics: volatile, barriers and clobber
  • CMSIS-Driver 2.8.0
    • Added VIO API 0.1.0 (preview)
  • CMSIS-DSP 1.8.0
    • Added new functions and function groups
    • Added MVE support
  • CMSIS-NN 1.3.0
    • Added MVE support
    • Further optimizations for kernels using DSP extension
  • CMSIS-RTOS 2.1.3 (unchanged)
    • RTX 5.5.2 (see revision history for details)
  • CMSIS-Pack 1.6.3
    • deprecating all types specific to cpdsc format. Cpdsc is replaced by Cprj with dedicated schema.
  • CMSIS-SVD 1.3.3 (unchanged)
  • CMSIS-DAP 2.0.0 (unchanged)
  • CMSIS-Zone 1.0.0
  • Devices
    • ARMCM55 device
    • ARMv81MML startup code recognizing __MVE_USED macro
    • Refactored vector table references for all Cortex-M devices
    • Reworked ARMCM* C-StartUp files.
    • Include L1 Cache functions in ARMv8MML/ARMv81MML devices
  • Utilities Attention: Linux binaries moved to Linux64 folder!
    • SVDConv 3.3.35
    • PackChk 1.3.89
5.6.0
  • CMSIS-Core (Cortex-M) 5.3.0
    • Added provisions for compiler-independent C startup code.
  • CMSIS-Core (Cortex-A) 1.1.4
    • Fixed __FPU_Enable.
  • CMSIS-Driver 2.7.1
    • Finalized WiFi Interface API 1.0.0
  • CMSIS-DSP 1.7.0 (see revision history for details)
    • New Neon versions of f32 functions
    • Compilation flags for FFTs
  • CMSIS-NN 1.2.0 (unchanged)
  • CMSIS-RTOS1 1.03 (unchanged)
    • RTX 4.82.0 (see revision history for details)
  • CMSIS-RTOS 2.1.3 (unchanged)
    • RTX 5.5.1 (see revision history for details)
  • CMSIS-Pack 1.6.0 (unchanged)
  • CMSIS-SVD 1.3.3 (unchanged)
  • CMSIS-DAP 2.0.0 (unchanged)
  • CMSIS-Zone 0.12.0 (preview)
    • Completely reworked
  • Devices
    • Generalized C startup code for all Cortex-M family devices.
    • Updated Cortex-A memory regions and system configuration files.
  • Utilities
    • SVDConv 3.3.27
    • PackChk 1.3.82 (unchanged)
5.5.1
  • CMSIS-Core (Cortex-M) 5.2.1
    • Fixed compilation issue in cmsis_armclang_ltm.h
  • CMSIS-Core (Cortex-A) 1.1.3 (unchanged)
  • CMSIS-Driver 2.7.0 (unchanged)
  • CMSIS-DSP 1.6.0 (unchanged)
  • CMSIS-NN 1.1.0 (unchanged)
  • CMSIS-RTOS 2.1.3 (unchanged)
    • RTX 5.5.0 (unchanged)
  • CMSIS-Pack 1.6.0 (unchanged)
  • CMSIS-SVD 1.3.3 (unchanged)
  • CMSIS-DAP 2.0.0 (unchanged)
  • CMSIS-Zone 0.9.0 (unchanged)
5.5.0
  • CMSIS-Core (Cortex-M) 5.2.0
    • Reworked Stack/Heap configuration for ARM startup files.
    • Added Cortex-M35P device support.
    • Added generic Armv8.1-M Mainline device support.
  • CMSIS-Core (Cortex-A) 1.1.3 Minor fixes.
  • CMSIS-DSP 1.6.0
    • reworked DSP library source files
      • added macro ARM_MATH_LOOPUNROLL
      • removed macro UNALIGNED_SUPPORT_DISABLE
      • added const-correctness
      • replaced SIMD pointer construct with memcopy solution
      • replaced macro combination "CMSIS_INLINE __STATIC_INLINE with "__STATIC_FORCEINLINE"
    • reworked DSP library documentation
    • Changed DSP folder structure
      • moved DSP libraries to ./DSP/Lib
    • moved DSP libraries to folder ./DSP/Lib
    • ARM DSP Libraries are built with ARMCLANG
    • Added DSP Libraries Source variant
  • CMSIS-NN 1.1.0 (unchanged)
  • CMSIS-Driver 2.7.0
    • Added WiFi Interface API 1.0.0-beta
    • Added custom driver selection to simplify implementation of new CMSIS-Driver
  • CMSIS-RTOS 2.1.3
    • RTX 5.5.0 (see revision history)
  • CMSIS-Pack 1.6.0
  • CMSIS-SVD 1.3.3 (unchanged)
  • CMSIS-DAP 2.0.0 (unchanged)
  • CMSIS-Zone 0.9.0 (Preview)
  • Devices
    • Added Cortex-M35P and ARMv81MML device templates.
    • Fixed C-Startup Code for GCC (aligned with other compilers)
      • Moved call to SystemInit before memory initialization.
  • Utilities
    • SVDConv 3.3.25
    • PackChk 1.3.82
5.4.0
  • CMSIS-Core (Cortex-M) 5.1.2 Minor fixes and slight enhancements, e.g. beta for Cortex-M1.
  • CMSIS-Core (Cortex-A) 1.1.2 Minor fixes.
  • CMSIS-Driver 2.6.0 (unchanged)
  • CMSIS-DSP 1.5.2 (unchanged)
  • CMSIS-NN 1.1.0 Added new math function (see revision history)
  • CMSIS-RTOS 2.1.3 Relaxed interrupt usage.
    • RTX 5.4.0 (see revision history)
  • CMSIS-Pack 1.5.0 (unchanged)
  • CMSIS-SVD 1.3.3 (unchanged)
  • CMSIS-DAP 2.0.0 (unchanged)
  • CMSIS-Zone 0.0.1 (unchanged)
5.3.0
  • CMSIS-Core (Cortex-M) 5.1.1
  • CMSIS-Core (Cortex-A) 1.1.1
  • CMSIS-Driver 2.6.0 (unchanged)
  • CMSIS-DSP 1.5.2 (unchanged)
  • CMSIS-NN 1.0.0 Initial contribution of Neural Network Library.
  • CMSIS-RTOS 2.1.2 (unchanged)
  • CMSIS-Pack 1.5.0 (unchanged)
  • CMSIS-SVD 1.3.3 (unchanged)
  • CMSIS-DAP 2.0.0 Communication via WinUSB to achieve high-speed transfer rates.
  • CMSIS-Zone 0.0.1 (unchanged)
5.2.0
  • CMSIS-Core (Cortex-M) 5.1.0 MPU functions for ARMv8-M, cmsis_iccarm.h replacing cmsis_iar.h
  • CMSIS-Core (Cortex-A) 1.1.0 cmsis_iccarm.h, additional physical timer access functions
  • CMSIS-Driver 2.6.0 Enhanced CAN and NAND driver interface.
  • CMSIS-DSP 1.5.2 Fixed diagnostics and moved SSAT/USST intrinsics to CMSIS-Core.
  • CMSIS-RTOS 2.1.2 Relaxed some ISR-callable restrictions.
  • CMSIS-Pack 1.5.0 (unchanged)
  • CMSIS-SVD 1.3.3 (unchanged)
  • CMSIS-DAP 1.2.0 (unchanged)
  • CMSIS-Zone 0.0.1 (unchanged)
5.1.1
  • CMSIS-Core (Cortex-M) (unchanged)
  • CMSIS-Core (Cortex-A) (unchanged)
  • CMSIS-Driver 2.05 (unchanged)
  • CMSIS-DSP 1.5.2 (unchanged)
  • CMSIS-RTOS 2.1.1 Fixed RTX5 pre-built libraries for Cortex-M.
  • CMSIS-Pack 1.5.0 (unchanged)
  • CMSIS-SVD 1.3.3 (unchanged)
  • CMSIS-DAP 1.1.0 (unchanged)
  • CMSIS-Zone 0.0.1 (unchanged)
5.1.0
  • CMSIS-Core (Cortex-M) 5.0.2 several minor corrections and enhancements
  • CMSIS-Core (Cortex-A) 1.0.0 implements a basic run-time system for Cortex-A5/A7/A9
  • CMSIS-Driver 2.05 status typedef made volatile
  • CMSIS-DSP 1.5.2 fixed GNU Compiler specific diagnostics
  • CMSIS-RTOS 2.1.1 added support for Cortex-A5/A7/A9 to RTX5
  • CMSIS-Pack 1.5.0 added SDF format specification
  • CMSIS-SVD 1.3.3 (unchanged)
  • CMSIS-DAP 1.1.0 (unchanged)
  • CMSIS-Zone 0.0.1 (Preview) format to describe system resources and tool for partitioning of resources
5.0.1
  • CMSIS-Core 5.0.1 added __PACKED_STRUCT macro and uVisor support
  • CMSIS-Driver 2.05 updated all typedefs related to status now being volatile.
  • CMSIS-DSP 1.5.1 added ARMv8M DSP libraries
  • CMSIS-RTOS 2.1.0 added support for critical and uncritical sections
  • CMSIS-Pack 1.4.8 add Pack Index File specification
  • CMSIS-SVD 1.3.3 (unchanged)
  • CMSIS-DAP 1.1.0 (unchanged)
5.0.0 Added support for: ARMv8-M architecture including TrustZone for ARMv8-M and Cortex-M23, Cortex-M33 processors
  • CMSIS-Core (Cortex-M) 5.0.0 added support for ARMv8-M and Cortex-M23, Cortex-M33 processors
  • CMSIS-Driver 2.04.0 (unchanged)
  • CMSIS-DSP 1.4.9 minor corrections and performance improvements
  • CMSIS-RTOS 2.0.0 new API with RTX 5.0.0 reference implementation and corrections in RTX 4.8.2
  • CMSIS-Pack 1.4.4 introducing CPDSC project description
  • CMSIS-SVD 1.3.3 several enhancements and rework of documentation
  • CMSIS-DAP 1.1.0 (unchanged)
4.5.0 Maintenance release that is fixing defects. See component's revision history for more details. See component's revision history for more details.
  • CMSIS-Core (Cortex-M) 4.30.0
  • CMSIS-DAP 1.1.0 (unchanged)
  • CMSIS-Driver 2.04.0
  • CMSIS-DSP 1.4.7
  • CMSIS-Pack 1.4.1
  • CMSIS-RTOS RTX 4.80.0
  • CMSIS-SVD 1.3.1
4.4.0 Feature release adding CMSIS-DAP (see extended End User Licence Agreement) and CMSIS-Driver for CAN. See component's revision history for more details.
  • CMSIS-Core (Cortex-M) 4.20.0
  • CMSIS-DAP 1.1.0
  • CMSIS-Driver 2.03.0
  • CMSIS-DSP 1.4.5 (unchanged)
  • CMSIS-RTOS RTX 4.79.0
  • CMSIS-Pack 1.4.0
  • CMSIS-SVD 1.3.0
4.3.0 Maintenance release adding SAI CMSIS-Driver and fixing defects. See component's revision history for more details.
  • CMSIS-Core (Cortex-M) 4.10.0
  • CMSIS-Driver 2.02.0
  • CMSIS-DSP 1.4.5
  • CMSIS-RTOS RTX 4.78.0
  • CMSIS-Pack 1.3.3
  • CMSIS-SVD (unchanged)
4.2 Introducing processor support for Cortex-M7.
4.1 Enhancements in CMSIS-Pack and CMSIS-Driver.
Added: PackChk validation utility
Removed support for GNU: Sourcery G++ Lite Edition for ARM
4.0 First release in CMSIS-Pack format.
Added specifications for CMSIS-Pack, CMSIS-Driver
3.30 Maintenance release with enhancements in each component
3.20 Maintenance release with enhancements in each component
3.01 Added support for Cortex-M0+ processors
3.00 Added support for SC000 and SC300 processors
Added support for GNU GCC Compiler
Added CMSIS-RTOS API
2.10 Added CMSIS-DSP Library
2.0 Added support for Cortex-M4 processor
1.30 Reworked CMSIS startup concept
1.01 Added support for Cortex-M0 processor
1.00 Initial release of CMSIS-Core (Cortex-M) for Cortex-M3 processor