IAR Embedded Workbench for Renesas RX

Library support for the C++17 language standard

The toolset includes a new C++ library that supports C++17 library features.

Additional GNU C language extensions

The IAR C/C++ Compiler supports a number of new GCC-style operators, attributes and expressions in extended language mode.

Editor and IDE enhancements

• Editor themes - a new way to set up the colors and fonts in the text editor
• Syntax feedback - instant syntax suggestions while typing
• Improved parameter hints
• Window color themes - dark mode
• Gray out inactive code support

RX660 and RX26T supported

The RX660 and RX26T groups of microcontrollers are now supported.

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

64-bit Windows application

IAR Embedded Workbench now runs as a 64-bit Windows application.

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.

C-STAT enhancements

• MISRA C:2012 Amendment 2
  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 2. This Amendment adds two additional rules to MISRA C:2012 and introduces support for ISO/IEC 9899:2011, commonly referred to as "C11".
• Improved performance
  Depending on the project, the analysis can be up to 40% faster and memory consumption reduced by up to 20%, compared to the previous version of C-STAT.

Updated device support

The device support files have been updated to the most recent version from Renesas.

Updated user documentation

The C/C++ Development Guide, C-SPY Debugging Guide, and IDE Project Management and Building Guide have been updated to reflect the product changes.

C-STAT enhancements

• MISRA C:2012 Amendment 1
  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 1. This amendment adds 14 additional rules to MISRA C:2012 with a focus on security concerns highlighted by the ISO C Secure Guidelines. Several of these address specific issues pertaining to the use of untrustworthy data, a well-known security vulnerability.
• Extended coverage of CERT C
  The static analysis tool C-STAT has extended its coverage of the SEI CERT C Coding Standard. The SEI CERT C Coding Standard's goal is to provide rules for developing safe, reliable, and secure systems in the C programming language, with support for C11 constructs. C-STAT covers all rules in the different CERT C sections listed on the CERT C wiki as of January 2020, with the exception of the API, CON, POS, and WIN sections, which are not applicable to IAR Systems products, yielding a total of 90 covered rules.
• Link analysis trace information
  The link analysis messages now display trace information when relevant. For checks looking for conflicting symbol names, all conflicting declarations are now listed in the trace information instead of each pair of conflicts being described in a separate message. This might lead to fewer reported messages for the same number of found issues.

IAR Build Tools for Linux

A new product, IAR Build Tools for Renesas RX is available. It contains the IAR C/C++ Compiler, IAR Assembler, Linker and library tools, C-STAT, IARBuild, and runtime libraries. Get product info

Renesas Smart Configurator update

The Renesas Smart Configurator (included) has been updated to V2.7.0.

• RX72N and RX66N supported
  The RX72N and RX66N groups of microcontrollers are now supported
• Renesas Smart Configurator update
  The Renesas Smart Configurator (included) has been updated to V2.4.0