IAR Embedded Workbench for RISC-V

Complete development toolchain providing one toolbox in one view, giving you one uninterrupted workflow. As a well established frontrunner in the embedded industry, you can rely on IAR Embedded Workbench to compile, analyze and debug your code in the most efficient way. 


Highly optimizing compiler technology

IAR Embedded Workbench offers excellent optimization technology to ensure developers that the application fits the required needs and optimizes the utilization of on-board memory and necessary speed. In current version of the toolchain, code density is already small comparing to other available tools, and more optimizations are expected in future releases to generate even smaller code.


Broad device support

IAR Embedded Workbench for RISC-V supports RV32 and RV32E 32-bit RISC-V cores and extensions, including RISC-V P extension for Packed-SIMD instructions and RISC-V B extension. The support for custom extensions helps when working with designing custom cores with exact definitions for an application or a product.


Comprehensive debugger

The C-SPY Debugger gives full control of the application in real time with full debugging capabilities even without access to the hardware using the C-SPY simulator. Native debug probe support through I-jet enables high-speed in-circuit debugging. For livestreaming of trace information for code coverage and profiling purposes, the trace probe I-jet Trace is supported. The debugger also includes a command line utility. In addition, a plugin SDK is available for easy integration of emulator interfaces, RTOSs, TCP/IP and network stacks, etc.


Technical support included

As the leading commercial tools supplier for RISC-V, we are able to provide worldwide technical support with our products. With a Support and Update Agreement, you also get immediate access to the latest updates and features.

Product overview

See latest version of IAR Embedded Workbench for RISC-V in action and learn how to get started with the toolchain in this video.

Latest releases

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

Latest version 2.11

Editor enhancements

  • Editor themes - a new way to set up the colors and fonts in the text editor
  • Syntax feedback - instant syntax suggestions while typing

Device support

Support for the following devices has been added: 

  • Codasip L30, L30F, L50 and L50F

Additional Debug drivers

  • GDB Server
  • Simplified Third Party Driver
Read complete release notes

Version 2.10

RISC-V standard extension Bit-manip (RV32B)

  • Assembler, simulator, and compiler support for the subgroups Zba, Zbb, Zbc, and Zbs from the RISC-V standard extension RVB 

Andes V5 performance extensions

  • Assembler, simulator, compiler, and library support for Andes V5 performance extensions

Debug enhancements

  • For devices that support system bus access, the watch windows now support live update of variables 
  • Handling of different reset modes has been improved

Iarbuild enhancements

The iarbuild command line build utility now supports:

  • Generating a Ninja build file based on the IAR Embedded Workbench project format
  • Generating a JSON description of the Embedded Workbench project
  • More C-STAT reporting and configuration methods

Improved Code Completion

  • Wider scope of assisted situations, for example when adding include files
  • More information is shown with the suggestions, for example information on function parameters and types
  • ’Fuzzy matching’ aids in identifying suggested completions

Device support

Support for the following devices has been added: 

  • Andes A27, A45, D45 and N45
  • Fraunhofer EMSA5

64-bit Windows

  • IAR Embedded Workbench for RISC-V is now built for 64-bit Windows
Read complete release notes

Wide range of RISC-V devices

Supported devices

IAR Embedded Workbench for RISC-V supports RV32 and RV32E 32-bit RISC-V cores and extensions, including RISC-V P extension for Packed-SIMD instructions and RISC-V B extension. 

See all supported devices

What type of license do you need?

Our tools are available in a flexible license model to suit your company needs. Together with our support and update agreements, you get the support you need in multiple time zones and multiple languages. Send a request for quote or contact sales to get started.

Read more about Licenses

Want to know more about IAR Embedded Workbench for RISC-V?

We are available to answer any questions about our products. To help you make the most out of your experience, you can also find plenty of information in our Learn section and at the customer portal My Pages.

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User guides and documentation

Languages and standards

The IAR C/C++ compilers offer different dialects of the C and C++ programming languages, as well as different extensions specific for embedded programming (please note that not all language standards are supported for all target implementations). The compiler can be instructed to disable extensions for strict conformance to the standards. 

A wide range of industry-standard debug and image formats compatible with most popular debuggers and emulators are supported. This includes ELF/DWARF where applicable.

ISO/ANSI C/C++ Compliance

The IAR C/C++ compilers adhere to a freestanding implementation of the following C programming language standards:

  • INCITS/ISO/IEC 9899:2018, known as C18 (Latest version only).
  • The compiler supports all C++17 features. The C++ library supports C++14 with no C++17 additions.  (Latest version only).
  • ISO/IEC 14882:2015, known as C++14
  • INCITS/ISO/IEC 9899:2012, known as C11
  • ANSI X3.159-1989, known as C89

The ISO/ANSI C/C++ Compliance level varies between the different compilers. For complete information, please refer to the IAR C/C++ Compiler user documentation in your chosen product.

IEEE 754 standard

IAR Embedded Workbench supports the IEEE 754 standard for floating-point arithmetic.


MISRA C is a software development standard for the C programming language developed by MISRA, The Motor Industry Software Reliability Association. Its aims are to facilitate code safety, portability and reliability in the context of embedded systems, specifically those systems programmed in ISO C.

The first edition of the MISRA C standard, "Guidelines for the use of the C language in vehicle based software", was produced in 1998. In 2004, a second edition was produced with many substantial changes to the guidelines, including a complete renumbering of the rules. Additionally MISRA C:2012 with extended support and MISRA C++:2008 for identifying unsafe code constructs in the C++ standard have also been added to the standards.

IAR Embedded Workbench features an add-on product C-STAT so you can check compliance with rules as defined by MISRA C:2004, MISRA C++:2008 and MISRA C:2012.

Test validation

We use the following commercial test suites to test conformance of our tools to the standards:

  • Plum Hall Validation test suite for ISO/IEC C conformance
  • Perennial EC++ Validation Suite for C++ conformance
  • Dinkum C++ Proofer to test how our libraries conform to the C and C++ standard as well as test our STL implementation against the C++ standard.

In addition to the commercial suites, we use several in-house test suites for testing new features, regression testing, corrected errors, etc.

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