IAR Embedded Workbench for Arm

Complete development environment for Arm, generating fast, compact code and enabling you to take full control of your code.



User-friendly IDE

One Integrated Development Environment with project management tools and editor. Included is 8,400 example projects containing configuration files, code examples and project templates, giving every project a quick start.


8,800+ supported Arm devices

Support for all 32-bit Arm cores from all major vendors and selected 64-bit Arm cores, including Arm Cortex-M0, Cortex-M0+, Cortex-M1, Cortex-M3, Cortex-M4, Cortex-M7, Cortex-M23, Cortex-M33, Cortex-M55, Cortex-M85, Cortex-R4, Cortex-R5, Cortex-R7, Cortex-R8, Cortex-R52, Cortex-R52+, Cortex-R82, Cortex-A5, Cortex-A7, Cortex-A8, Cortex-A9, Cortex-A15, Cortex-A17, Cortex-A32, Cortex-A35, Cortex-A53, Cortex-A55, Cortex-A57, Cortex-A72 and Arm11, Arm9, Arm7 and SecurCore.


Leading compiler technology

The IAR C/C++ Compiler is built by our compiler experts and supports C and C++. It offers advanced global and target-specific optimizations, and supports a wide range of industry-standard debug and image formats, compatible with most popular debuggers and emulators, including ELF/DWARF where applicable. Coupled with the complete linker and assembler, it enables powerful building of embedded applications.


Comprehensive debugger

The C-SPY Debugger provides an Arm instruction simulator and extensive support for debugging probes and target systems. It includes RTOS plugins and wide support for communication stacks and middleware, as well as a C-like macro system. In addition, it offers multicore debugging with support for symmetric multicore processing (SMP) and asymmetric multicore processing (AMP).


On-demand training included

When you buy a license of IAR Embedded Workbench for Arm, you get access to free training courses through our IAR Academy on Demand offering.


Integrated code analysis add-ons

Through the integrated static analysis add-on C-STAT and the runtime analysis add-on C-RUN, the toolchain helps you to ensure code quality throughout the development and testing process.

Product Overview Video

Unveiling New Features in IAR Embedded Workbench and IAR Build Tools for Arm v9.50

Latest releases

We are constantly updating and refining our tools with new features, new device support and extended capabilities.

Latest version: 9.50

  • Command line debug capability for CI/CD activities and debugging using VS Code on Linux​​​​​
    The C-SPY command line utility (cspybat) and the Runtime Analysis tool (C-RUN) are now available on Linux for running applications in the Simulator or on hardware using the I-jet and I-jet Trace debug probes.
  • C-SPY Arm Virtual Hardware connectivity
  • Cortex A support in ST-LINK
  • AMP multicore debugging with J-Link
    The advanced AMP (Asymmetric Multi-Processing) multicore debugging available for I-jet and CMSIS-DAP, is now also supported also by the C-SPY J-Link driver.
  • Generalplus G+LINK debug probe support
    The Generalplus G+LINK debug probe is now natively supported by the C-SPY Debugger.
  • CMSIS-Toolbox/csolution support
  • MISRA C:2012 Amendment 3
    The Static Analysis tool C-STAT has extended its coverage of the MISRA C:2012 Coding Standard and now fully supports MISRA C:2012 Amendment 3.
  • New GCC C language extensions
  • Additional Arm ACLE support
  • Initial support for CMake import
    It is possible to import a CMake project to be built, analyzed, and debugged as a standard IAR Embedded Workbench project.
  • New device support
Read complete release notes

Version: 9.40.2

  • Support for ST ST-LINK debug authentication
    Based on the Arm Secure Debug Manager (SDM) debugger API to support the Arm PSA-ADAC debug authentication method.
  • Support for new devices
    Added support for devices from ABOV, Ambiq, AutoChips, CKS, GeneralPlus, Microchip, NXP, Puya, Renesas, Silicon Labs, STMicroelectronics, and Texas Instruments. See the complete list in the release notes.
Read complete release notes

Version: 9.40

  • IDE Build Actions improvements
    Build actions are a flexible design, to which you can inject and chain commands as part of the build. Build actions will replace the previous pre- and post-build actions with a more intuitive mechanism, to which multiple actions can be executed before compilation and before/after linking.
  • Arm PACBTI support
    Implements the pointer authentication security mechanism initially launched in the Arm Cortex-M85 core.
  • Arm Cortex-A32 support
    Adds support for the Arm Cortex-A32 32-bit core based on the Armv8-A AARCH32 architecture.
  • New compiler GCC extensions

    The following GCC extensions are now supported by the compiler

    • the __auto_type specifier

    • the format function attribute

    • the warn_unused_result function attribute

  • Renesas E2/E2 Lite emulator support
    The Renesas E2 emulator is an advanced on-chip debugging emulator that is now natively supported in IAR Embedded Workbench for Arm.
  • Renesas RA Smart Configurator support for the IAR I-jet debug probe
    For devices that support TrustZone, you can use the Renesas Device Partition Manager (RDPM) in the RA Smart Configurator to check and change the state of the device lifecycle management (DLM), make the memory partition settings, and restore the state of the device. The necessary I-jet driver is distributed as part of the RA Smart Configurator.
  • Support for new devices
Read complete release notes

Version: 9.32

  • Arm Cortex-R82 support
    Support for the new high performance 64-bit Cortex-R82 core based on the ARMv8-R AARch64 architecture.
  • Support for the ST STLINK-V3PWR debug probe (Service Pack v9.32.2)
    Adds full power measurement capabilities when debugging using the ST STLINK-V3PWR probe. Power data can be visualized using the debugger Timeline and Power Log windows. Power statistics are collected and displayed by the debugger Function Profiler.
  • Support for new devices
Read complete release notes

Version: 9.30

  • Arm Cortex-M85 support
  • Arm Cortex-M Custom Instructions support
  • Cortex-R52+ support
  • Extended Armv8-A support
  • Library support for the C++17 language standard
  • Additional GNU C language extensions
  • Editor and IDE enhancements
  • Visual Studio Code support

    The IAR Build and IAR C-SPY Debug extensions available on Microsoft Marketplace enable you to work in Visual Studio Code (with IAR Embedded Workbench installed) to:
    - Build IAR Embedded Workbench projects
    - Run the C-STAT static analysis tool
    - Debug applications using the same range of hardware/debug probes as in IAR Embedded Workbench

  • Supported devices
Read complete release notes

Get started using this product

We are here to help you in your next embedded development project. Get started now by downloading a free trial version or requesting a price quote for your specific needs.

Free trial of IAR Embedded Workbench for Arm

The evaluation license is free of charge and allows you to try the software for 14 days to evaluate its efficiency and ease of use. You will be asked to register to get your license when you click download.

Please note the following for the 14-day time-limited version:

  • Time limit for evaluation license is 14 days
  • Not allowed to be used for product development or any kind of commercial use
  • Source code for runtime libraries is not included
  • C-RUN is size-limited to 12 Kbytes of code, excluding constant data
  • Limited technical support

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