IAR Embedded Workbench for Renesas RL78

• The Renesas RL78/G24 Flexible Application Accelerator (FAA) co-processor is supported
  

  • The Renesas FAA assembler is incorporated in the IAR Embedded Workbench
  • FAA assembler-generated output is linked with the IAR linker
  • The IAR C-SPY debugger supports multicore debugging for the FAA core

• Improved compliance with the CC-RL ABI specification
  

  Additional standard library functions and runtime routines have been implemented.

• Debugging support for flash self-programming
  

  Debugging support while self-programming is in progress has been added for G2x and F2x devices.

• Program corrections
  

  Errors have been corrected in the compiler, linker, and in IAR C-STAT.

• 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
• 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. (An initial debug session with IAR Embedded Workbench is required to fill in the settings in the Hardware setup dialog box, prior to debugging in Visual Studio Code)
• 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.
• 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.

• RL78/G23 microcontroller group support
  The RL78/G23 group of microcontrollers is now supported.
• IAR Build Tools for Linux
  A new product, IAR Build Tools for Renesas RL78, is available. It requires a separate product license and is distributed as a Debian package for Ubuntu containing the IAR C/C++ Compiler, IAR Assembler, Linker and library tools, C-STAT, IARBuild, and runtime libraries. Get product info
• C-STAT enhancements
  • 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.
• Renesas Smart Configurator included
  The Renesas RL78 Smart Configurator V1.0.1 has been included.

C18 support
The default Standard C is now C18 (ISO/IEC 9899:2018).

C++17 support
The compiler now supports almost all C++17 features. The C++ library supports C++14 with no C++17 additions.

Improved Source Browser
The following improvements have been made to the Source Browser:

• The source browser data is generated faster as it is now running as a separate thread.
• New Source Browser Log window.
• Status indicator in the status bar.
• Enhanced feedback in case source browsing data cannot be generated.

EZ-CUBE2 On-Chip Debug Emulator support
The EZ-CUBE2 On-Chip Debug Emulator, primarily targeted for the Chinese market, is now supported.

E2 emulator power debugging in C-SPY
The E2 emulator allows you to measure the dynamically changing current drawn by the user system. This is visualized as a graph in the C-SPY Timeline window as well as a list of time-current value pairs in the Power Log window. It is also possible to stop execution when the current goes above or below a certain user-defined threshold value.

Documentation Comments support in the editor
The editor can distinguish comments that start with /**, /*!, /// or //! as Documentation Comments. Inside a Documentation Comment, the editor can recognize keywords that begin with \ or @. If the keyword is recognized as a doxygen keyword, the Documentation Comment will appear in tooltips and parameter hints for variables and functions. See IAR Embedded Workbench IDE Project Management and Building Guide for more information.

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

• IAR Embedded Workbench IDE Project Management and Building Guide
• IAR C/C++ Development Guide
• IAR Assembler Reference Guide
• IAR Linker and Library Tools Reference Guide
• C-SPY Debugging Guide
• IAR Embedded Workbench MISRA C:2004 Reference Guide
• IAR Embedded Workbench MISRA C:1998 Reference Guide
• Migration Guide from the CS+ CA78K0R toolchain for RL78 to IAR Embedded Workbench
• Migration Guide from Renesas toolchain for M16C/R8C to IAR Embedded Workbench

Hardware debugging support

• Renesas E2 Emulator
• Renesas E1 Emulator
• Renesas E2 Emulator Lite
• Renesas EZ-Cube
• Renesas IECUBE
• Renesas E20
• Renesas TK

RTOS support

• Micrium μC/OS-II
• OSEK Run Time Interface (ORTI)
• embOS
• Express Logic
• FreeRTOS
• CMX

Each RTOS plugin installs a number of new windows in C-SPY, most importantly the task or thread list windows where task-specific breakpoints can be specified and task-specific steps executed. Different inspector windows display the contents of the internal data structures of the RTOS such as timers, queues, semaphores, resources and mailboxes.

IAR C/C++ 编译器提供 C 和 C++ 编程语言的不同方言，以及针对嵌入式编程的不同扩展（请注意，并非所有语言标准都支持所有目标实现）。编译器可以被指示禁用扩展，以严格遵守标准。

支持多种行业标准的调试和映像格式，与大多数流行的调试器和模拟器兼容。其中包括 ELF/DWARF（如适用）。

符合 ISO/ANSI C/C++ 标准

IAR C/C++ 编译器遵守以下 C 语言编程标准的独立实现：

• INCITS/ISO/IEC 9899:2018，即 C18（仅限最新版本）

• 编译器支持所有 C++17 功能。C++ 库支持 C++14，没有补充 C++17（仅限最新版本）

• ISO/IEC 14882:2015，即 C++14

• INCITS/ISO/IEC 9899:2012，即 C11

• ANSI X3.159-1989，即 C89

不同编译器的 ISO/ANSI C/C++ 兼容性水平存在差异。如需了解完整信息，请参考您所选产品中的 IAR C/C++ 编译器用户文档。

IEEE 754 标准

IAR Embedded Workbench 支持 IEEE 754 标准的浮点运算。

MISRA C

MISRA C 是由 MISRA（汽车工业软件可靠性协会）制定的 C 编程语言的软件开发标准。它的目的是促进嵌入式系统中的代码安全、可移植性和可靠性，特别是那些用 ISO C 语言编程的系统。

MISRA C 标准的第一版是《汽车软件中 C 语言的使用指南》，诞生于 1998 年。2004 年该协会发布了第二版指南，其中进行了许多重大修改，包括对规则进行了全面的重新编号。此外，MISRA C:2012 的扩展支持和 MISRA C++:2008 用于识别 C++ 标准中的不安全代码结构也被添加到标准中。

IAR Embedded Workbench 包含一个插件产品 C-STAT，因此您可以检查应用是否符合 MISRA C:2004、MISRA C++:2008 和 MISRA C:2012 定义的规则。

测试验证

我们使用以下商业测试套件来测试我们的工具是否符合标准：

• 适于 ISO/IEC C 标准一致性的 Plum Hall 验证测试套件

• 适于测试 C++ 标准一致性的 Perennial EC++ 验证套件

• Dinkum C++ Proofer 测试我们的库是否符合 C 和 C++ 标准，并根据 C++ 标准测试我们的 STL 实现

除商业套件外，我们还使用一些内部测试套件来测试新功能、执行回归测试、纠正错误等。