This is the first major CMSIS 6 release
Changes since CMSIS 5.9.0
CMSIS-Core: 6.0.0
- Core(M) and Core(A) joined into single Core component
- Core header files reworked, aligned with TRMs
- Previously deprecated features removed
- Dropped support for Arm Compiler 5
CMSIS-DSP: moved into separate pack
CMSIS-NN: moved into separate pack
CMSIS-RTOS: deprecated and removed
- RTX4 is deprecated and removed
CMSIS-RTOS2: 2.3.0
- OS Tick API moved from Device to CMSIS class
- Provisional support for processor affinity in SMP systems
- RTX5 moved into separate CMSIS-RTX pack
CMSIS-Driver: 2.9.0
- Updated VIO API 1.0.0
- Added GPIO Driver API 1.0.0
CMSIS-DAP: Moved into separate pack
CMSIS-Pack: Moved to Open-CMSIS-Pack
CMSIS-SVD: Moved to Open-CMSIS-Pack
Devices: Moved to Cortex_DFP pack
Utilities: Moved to CMSIS-Toolbox
Compiler Support
Support for compilers changed to recent versions of the following list.
- Arm Compiler 6 version 6.10 or later
- IAR Compiler for Arm version 8 or later
- GNU Compiler version 10 or later
- LLVM/Clang Compiler version 17 or later
Software Components
This base pack ARM::CMSIS@6.0.0 does not contain the full set of software components that where previously part of the pack in major version 5. Instead, this pack only ships the following basic components and API definitions:
- CMSIS-Core
- CMSIS-RTOS2 API
- CMSIS-Driver APIs
Additional components have been moved into other packs which can be installed separately if required.
- Pseudo-device support with processor-core only is now in the pack
ARM::Cortex_DFP. - CMSIS-RTX5 is now in the pack
ARM::CMSIS-RTX. - CMSIS-DSP has moved into the pack
ARM::CMSIS-DSPa while ago. - CMSIS-NN has moved into the pack
ARM::CMSIS-NNa while ago. - I/O retargeting support is now in the pack
ARM::CMSIS-Compiler. - EventRecorder is now in the pack
ARM::CMSIS-View. - Utilities (PackChk, SVDConv) are now part of CMSIS-Toolbox.
Migration guides
Migration guide for projects using CMSIS v5.9.0
Migration guide for CMSIS-Pack creators