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ดูเวอร์ชั่นเต็ม : IAR Embedded Workbench for Renesas RL78 version 4.21.3



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31st January 2022, 01:13
https://i116.fastpic.org/big/2022/0130/d2/fa3963a9e69a11ccd3a33e508b7fead2.jpeg
IAR Embedded Workbench for Renesas RL78 version 4.21.3 | 1.1 Gb
Languages Supported: English, 日本語

IAR Systems, the future-proof supplier of software tools and services for embedded development, is pleased to announce the availability of IAR Embedded Workbench for Renesas RL78 version 4.21.3 is the complete development toolchain to create smaller, faster, smarter code for all RL78 devices.
Release notes for IAR Embedded Workbench for Renesas RL78 version 4.21.3
Highlights
- RL78/F24 microcontroller group support. The RL78/F24 group of microcontrollers is now supported including C-SPY debugging support.

Important information
- Compiler MISRA C C:1998/C:2004 support deprecation notice
The MISRA C compiler support is deprecated starting with EWRL78 version 4.21 and will be removed in a future release. Refer to IAR C-STAT for full MISRA C support.
- Binary compatibility
Object modules produced with earlier versions of the compiler cannot be linked together with modules produced with version 2.20 and onwards due to Renesas ABI (Application Binary Interface) compatibility changes.
- Calling convention
ELF/DWARF as object format and a new calling convention was introduced in v2.10 to support the Renesas ABI. For backwards compatibility with existing assembler source code, the calling conventions used by version 1.x is also supported. See the Development Guide for detailed information.
Known problems
- [EWRL78-753] Using __sfb() to read the start or end of a section can result in the wrong address being returned if the section is located inside the ROM mirror area. Objects inside this area will get an additional F in the third byte of the address, like 0xFxxxx, and will be accessed as if they were located in the RAM mirror area.
- [EWRL78-601] A multiplication of a real floating point type (r1) with a complex type will promote r1 to a complex type before the multiplication. This produces undesirable results when infinite number, NaNs, or -0.0's are involved. The same thing happens when you divide a complex type with a real floating type.
- [EWRL78-364, EW24353] Very deep nestlings of struct declarations, parenthesis or if-else statements, may generate a stack overflow error in the compiler.
Program corrections
- [EWRL78-883] If you copy several bits (1-bit bitfields) in sequence to the same destination byte, this can in some cases lead to faulty code being generated for optimization level Medium or higher.
User guide corrections
- [EWRL78-813] The order of the registers in Table 16: Registers used for passing parameters, on page 169 of the IAR C/C++ Development Guide for RL78 (revision DRL78_I-5) is not the order in which the registers are used for parameter passing. The order of 8-bit values passed in registers is: A,X,C,B,E,D
Miscellaneous
- NOP instruction after DIVWU and DIVHU
From version 1.40.3 and onwards, the compiler adds a NOP instruction for the RL78 S3 MCU core after every DIVWU and DIVHU instruction. This is a workaround for a conflict in the actual MCU between divide instructions and multiple interrupts. For more information, see Renesas Electronics Operating Precautions document number R01TU0067ED0200.

Important information
- Updated linker configuration files
The linker handling of the ROM mirror area has been improved in version 4.10 so that linker map files now show the correct memory usage. A consequence is that the ready-made linker configuration files (.icf) have been updated in that the blocks MIRROR_ROM and MIRROR_RAM are no longer needed. There has also been changes related to multi-thread support in the C/C++ library. Custom project-specific linker configuration files should be updated accordingly by comparing with the standard linker configuration files located in folder rl78\config.
- From version 3.10 and onwards there is a new mechanism to detect incompatible linker configuration files
The linker will now generate an error if the exported symbol __link_file_version_N is missing in the linker configuration file (.icf). This, to check compatibility with the current version of the linker. If needed (for very specific use cases), this error can be suppressed using the command line option -diag_suppress.
Program corrections
- [EWRL78-784, EWRL78-809, TPB-3303] Linking object files, generated by some third-party tools, that contain symbols in meta sections (like the section symbol for a .rela relocation section) can result in non-deterministic behavior in repeated builds with identical input. The linker can successfully link the project, generate warnings or errors, or terminate with an internal error. (This error reappeared in v4.21.1 of the linker.)
https://i116.fastpic.org/big/2022/0130/66/0ae753ee0360aff830154a27a8daaf66.jpeg
IAR Embedded Workbenchdelivers a complete development toolchain for building and debugging embedded applications for your selected target microcontroller. The included IAR C/C++ Compiler generates highly optimized code for your application, and the C-SPY Debugger is a fully integrated debugger for source and disassembly level debugging with support for complex code and data breakpoints.
With more than 4,000 supported Renesas devices, IAR Embedded Workbench supplies exceptional design flexibility for embedded developers working with the extensive Renesas product portfolio. The tools deliver outstanding performance and let our customers migrate easily between different architectures, and choose the one best suited for a specific application while using the same development tools. It also simplifies reuse of code.
Renesas RL788/16-bit microcontrollers (MCUs) greatly improve power efficiency with industry-leading low power consumption at 41μA/MHz consumption during normal operation and 0.355μA during clock operation. Built-in features such as a high-precision (±1%) high-speed on-chip oscillator, background operation data flash capable of 1 million rewrites, temperature sensor, and interface ports for multiple power supplies help reduce system costs and size.
IAR Embedded Workbench Overview - Part 1
In this video you will get an overview and learn how to take advantage of IAR Embedded Workbench capabilities and features that will make all the difference in your embedded application. One toolbox, one view, one uninterrupted workflow.
IAR Embedded Workbench Overview - Part 2
In this video you will get an overview and learn how to take advantage of IAR Embedded Workbench capabilities and features that will make all the difference in your embedded application. One toolbox, one view, one uninterrupted workflow.
IAR Systemssupplies future-proof software tools and services for embedded development, enabling companies worldwide to create the products of today and the innovations of tomorrow. Since 1983, IAR Systems' solutions have ensured quality, reliability and efficiency in the development of over one million embedded applications. The company is headquartered in Uppsala, Sweden and has sales and support offices all over the world.
Product:IAR Embedded Workbench
Version:4.21.3 for Renesas RL78
Supported Architectures:x86 or x64
Website Home Page :www.iar.com
Languages Supported:multilanguage
System Requirements:PC *
Size:1.1 Gb



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