IAR Embedded Workbench for RL78 version 2.21.2

embedded development tools IAR Embedded Workbench for Renesas RL78. The version includes major new functionality enabling simplified development and increased code quality control for applications based on Renesas low-power RL78 microcontrollers.

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 C/C++ and the Common Weakness Enumeration (CWE), as well as help keeping code compliant to coding standards like MISRA C:2004, MISRA C++:2008 and MISRA C:2012. Static analysis enables developers to already at an early stage identify errors such as memory leaks, access violations, arithmetic errors, and array and string overruns. This makes it a lot easier for developers to ensure code quality. It also minimizes the impact of errors on the finished product and on the project timeline.

In addition, version 2.20 of IAR Embedded Workbench for RL78 introduces stack usage analysis. As the stack is a fundamental property of an embedded application, setting it up properly is essential for ensuring the application’s stability and reliability. The task of calculating the stack space is, however, notoriously hard for all but the smallest of systems. This challenging task can be greatly simplified by having access to information about the worst case maximum stack depth of the application. Enabling stack usage analysis in IAR Embedded Workbench provides just that, adding listings of the maximum stack depth for each call graph root to the linker map file. The analysis process can be customized to take into account such constructs as calls via function pointers and recursion.

IAR Embedded Workbench for RL78 features world-leading code optimizations that create compact, fast-performing code. In order to achieve even higher execution speed, the 64-bit double-precision floating-point routines have been rewritten for the latest release.

Now included with the toolchain is Renesas AP4 for RL78. This standalone tool (formerly named Applilet) can be used to automatically generate control programs for peripheral modules in accordance with user-defined settings. Renesas AP4 for RL78 fully supports code generation for IAR Embedded Workbench for RL78, and the generated modules are incorporated via the IAR Project Connection mechanism.

IAR Embedded Workbench for RL78 includes the IAR C/C++ Compiler, assembler, linker, library tools and the C-SPY Debugger in a user-friendly integrated development environment. It is available in several editions, including a Functional Safety version with safety-certification from TÜV SÜD according to the requirements of IEC 61508, the international umbrella standard for functional safety, as well as ISO 26262, which is used for automotive safety-related systems.

What's new in IAR Embedded Workbench for Renesas RL78 version 2.21.2:

Service Pack 2.21.2
- This update solves errors in the prebuilt runtime libraries for the option Use far runtime library calls.
Version 2.21.1
- Extended functionality in C-STAT
- The static analysis tool C-STAT has been extended with approximately 150 new checks including 90 new MISRA C:2012 checks and two new packages of checks. There are also new options to enable or disable the false-positives elimination phase of the analysis and to exclude files from the analysis. C-STAT message suppression can now be controlled by directives placed in comments in the source files.
- E2 Lite and EZ-Cube emulator support
- C-SPY now supports the Renesas E2 emulator Lite and EZ-Cube (available in China only) on-chip debugging emulators.
- Updated device support
- SFR header files, linker configuration files, and device description files have been added for the latest Renesas devices.
- Updated user documentation
- The user guides C-SPY Debugging Guide and Migrating from UBROF to ELF/DWARF have been updated to reflect the product changes.

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