IAR Embedded Workbench for AVR32

C-STAT

The add-on product C-STAT for static analysis is now supported. C-STAT features innovative static analysis that can detect defects, bugs, and security vulnerabilities as defined by CERT and the Common Weakness Enumeration, as well as help keeping code compliant to coding standards like MISRA C:2012/2004 or MISRA C++:2008.

Parallel build

IAR Embedded Workbench can now build projects using multiple parallel processes. This can improve build performance significantly on multi-core or multiple processor computers. To enable parallel build, select Tools>Options>Project>Enable parallel build.

Stack usage analysis

With stack usage analysis enabled, a stack usage section will be added to the linker map file with listings of the maximum stack depth for each call graph root. The analysis process can be customized to take into account such constructs as calls via function pointers and recursion. The output can optionally be generated in XML format for post-processing activities.

New text editor and source browser

A new text editor and source browser are introduced in this version. The new features include auto completion, parameter hint, code folding, block select, block indent, bracket matching, zoom, and word/paragraph navigation. The new source browser adds features like Go to Declaration and Find All References to symbols.

New license management system

The new LMS used with this release introduces new features like commuter licenses, automatic license activation, and support for virtual servers. It is easier to administrate and a single installer concept enables easy transfer between all variants of IAR Embedded Workbench for a certain product by a license upgrade.

Sampled Graphs in C-SPY

It is now possible to specify variables for which you want to collect data samples. You can view the sampled data either in table format in the Data Sample window or as graphs in the Sampled Graphs window.

Custom SFR window

It is now possible to define custom SFR's (special function registers) in C-SPY with selectable access size and type.

Call Graph window

The new Call Graph window has been added. It is browsable and displays all calls made to and from each function from any source file in the active project.

Macro Quicklaunch window

The new Macro Quicklaunch window makes it possible to evaluate expressions and to launch C-SPY macros. The return value from the evaluated macro or expression is shown in a separate column and the user can re-trigger the evaluation at any given point.

Project connection

Files or file packages generated by external code generation tools can be imported and IAR Embedded Workbench automatically detects changes in the generated file set. This enables automated integration with for example device configuration tools.

Live Watch

The Live Watch window repeatedly samples and displays the values of expressions while your application is executing.

Compiler optimizations

Improved optimizations will give significantly faster execution of target code and smaller code size.

Extended inline assembler

The inline assembler has been extended with the possibility to take input arguments, give return values, and read or write to C symbols. The syntax is similar to the syntax used in GNU GCC.

New devices

ATUC128L3U, ATUC128L4U, ATUC256L3U, ATUC256L4U, ATUC64L3U, and ATUC64L4U

• IDE Project Management and Building Guide
• C/C++ Compiler Reference Guide
• C-SPY® Debugging Guide
• Migration Guide
• Assembler Reference Guide
• Linker and Library Tools Reference Guide
• MISRA C:1998 Reference Guide 
• MISRA C:2004 Reference Guide

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。

Hardware debugging support

• Support for JTAGICE3, JTAGICE mkII and AVR ONE! emulator
• NanoTrace support
• Flash loader
• Hardware and software breakpoints
• USB and serial connection

RTOS support

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