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描述

Topics
e² studio supports the new device RL78/F22.

e² studio is an Eclipse-based integrated development environment (IDE) for Renesas MCUs. In addition to Eclipse’s own powerful code editor, e² studio offers a rich range of extended functions. e² studio covers all development processes, from the downloading of sample code to debugging.

 

发布信息

ArchitectureVer.Released
64-bit version2026-04.2May 20, 2026
32-bit version (Note1)V7.8.0Apr 20, 2020

Note

  1. Henceforth, only the 64-bit version of the e² studio is to have regular updates. Updates to the 32-bit version of the e² studio, on the other hand, will be limited to essential modifications.

Information on Usage

 

FAQ

See all related FAQs

目标设备

Please be sure to check software agreement before downloading e² studio installer.

类型 文档标题 日期
升级 - IDE
登录后下载 ZIP 1,827.06 MB 日本語
升级 - IDE
登录后下载 RUN 1,756.29 MB 日本語
升级 - IDE
登录后下载 TXZ 895.25 MB 日本語
3 项目
类型 文档标题 日期
发行说明 PDF 2.85 MB
The e² studio 2026-04.2 Release Note describes product information, supported devices and supported features such as toolchains, emulators, code generation (Smart Configurator), and Smart Manual. Refer to "What is new" section for new the features and improvements in this version. Notifications of known issues are found in 'Useful workarounds and information' and 'Open issues' section.
工具新闻 - 发布公告 PDF 174 KB 日本語
Tool news to announce the upgrade to the e² studio 2026-04.2. This document explains improvements of functionality and how to update. The main enhancements are upgrading eclipse/CDT, Smart Configurator and debugger features.
工具新闻 - 发布公告 PDF 358 KB 日本語
工具新闻 - 发布公告 PDF 176 KB 日本語
工具新闻 - 发布公告 PDF 182 KB 日本語
应用说明 PDF 777 KB 日本語
AI 生成的摘要: This section explains how to set up and build the CUnit testing framework in e² studio for Renesas CC-RX. It instructs downloading CUnit version 2.1-2, creating a new Renesas CC-RX C/C++ Library Project, and configuring the project settings. It details copying necessary source and header files into the project, adjusting compiler settings to use C99, and creating a custom time.h header due to CC-RX limitations. Finally, it guides building the project to generate the static library file CUnit.lib.
应用说明 PDF 908 KB 日本語
AI 生成的摘要: This section explains how to set up and use CUnit version 2.1-2 with e² studio for Renesas RX using GCC. It details building the CUnit static library by downloading the package, creating a new Renesas RX C/C++ library project, configuring toolchain and device settings, and copying necessary source and header files. It also covers project configuration steps such as deleting unnecessary folders and adding include directories. Finally, it describes building the library to generate the static library file libCUnit.a, which can be used for unit testing in C/C++ projects.
工具新闻 - 发布公告 PDF 316 KB 日本語
发行说明 PDF 2.92 MB
The e² studio 2025-12 Release Note describes product information, supported devices and supported features such as toolchains, emulators, code generation (Smart Configurator), and Smart Manual. Refer to "What is new" section for new the features and improvements in this version. Notifications of known issues are found in 'Useful workarounds and information' and 'Open issues' section.
工具新闻 - 发布公告 PDF 174 KB 日本語
Tool news to announce the upgrade to the e² studio 2025-12. This document explains improvements of functionality and how to update. The main enhancements are Renesas 365 support and adding supported devices.
传单 PDF 913 KB English , 日本語
e² studio 是面向瑞萨电子 MCU 的基于 Eclipse 的集成开发环境(IDE)。 除了 Eclipse 自己强大的代码编辑器外,e² studio 还提供了丰富的扩展功能。e² studio 涵盖了从下载示例代码到调试的所有开发过程。 有关最新信息,请在下方选择您的器件家族,并查看每个器件的 e² studio 信息页面: 【支持 MCU/MPU:RA、RE、RX、RL78、RH850、Renesas Synergy、RZ】
工具新闻 - 发布公告 PDF 155 KB 日本語
This is the Tool News announcing the revision upgrade to QE for Capacitive Touch V4.2.0, Development Assistance Tool for Capacitive Touch Sensors. QE for Capacitive Touch is a tool for assisting in the development of embedded systems that include the use of capacitive touch keys. This tool simplifies the initial settings of the touch user interface and the tuning of the sensitivity. The main revisions are improvements to the sensor drive pulse frequency determined by automatic tuning (CTSU2) and support for the new device "RA0L1 Group, RL78/F22, RL78/F25, and RL78/L23".
工具新闻 - 发布公告 PDF 150 KB 日本語
This is a Tool News announcing the revision of QE for Motor V1.5.1, Development Assistance Tool for Motor Applications. QE for Motor is a development support tool that supports the development of embedded systems for motors that can be tuned and analyzed in conjunction with Renesas Motor Workbench, in addition to configuring the motor middleware and related drivers of Renesas microcontrollers. The main revision upgrades is support for MCK-RA6T2 Version 2.
发行说明 PDF 2.93 MB
The e² studio 2025-10 Release Note describes product information, supported devices and supported features such as toolchains, emulators, code generation (Smart Configurator), and Smart Manual. Refer to "What is new" section for new the features and improvements in this version. Notifications of known issues are found in 'Useful workarounds and information' and 'Open issues' section.
工具新闻 - 发布公告 PDF 163 KB 日本語
Tool news to announce the upgrade to the e² studio 2025-10. This document explains improvements of functionality and how to update. The main enhancements are updating the Smart Configurator (RX, RL78) and adding supported devices.
工具新闻 - 发布公告 PDF 596 KB 日本語
工具新闻 - 发布公告 PDF 442 KB 日本語
发行说明 PDF 3.25 MB
工具新闻 - 发布公告 PDF 184 KB 日本語
工具新闻 - 发布公告 PDF 284 KB 日本語
工具新闻 - 发布公告 PDF 261 KB 日本語
发行说明 PDF 3.09 MB
工具新闻 - 发布公告 PDF 194 KB 日本語
手册 - 开发工具 PDF 4.85 MB 日本語
工具新闻 - 发布公告 PDF 144 KB 日本語
发行说明 PDF 3.22 MB
工具新闻 - 发布公告 PDF 174 KB 日本語
工具新闻 - 发布公告 PDF 170 KB 日本語
工具新闻 - 发布公告 PDF 147 KB 日本語
发行说明 PDF 3.27 MB
工具新闻 - 发布公告 PDF 191 KB 日本語
工具新闻 - 发布公告 PDF 333 KB 日本語
快速入门指南 PDF 1.73 MB 日本語
应用说明 PDF 666 KB 日本語
AI 生成的摘要: The document explains how to integrate and use IAR Systems compilers within the e² studio development environment for Renesas microcontrollers. It details the installation of IAR Embedded Workbench and IAR Eclipse plugins, project creation, build configuration, and build execution using IAR compilers. The guide focuses on the RA family with the IAR ARM compiler but applies similarly to other Renesas devices. It also recommends using standalone Flexible Software Package configurators for RA and RZ families to enhance development. The environment setup assumes Windows 10 64-bit, e² studio 2024-07, and IAR tools installed.
发行说明 PDF 3.64 MB
工具新闻 - 发布公告 PDF 181 KB 日本語
应用说明 PDF 678 KB 日本語
AI 生成的摘要: This document explains how to use Doxygen within the e* studio integrated development environment. It details the confirmed environment setup, including Windows 10, e* studio 2024-04, Doxygen 1.8.16 bundled with the Eclox plugin, and Graphviz 11.0.0. It guides users through installing the Eclox plugin via Eclipse Marketplace and configuring the Doxygen version in e* studio preferences to generate documentation efficiently. The document notes that Doxygen, Eclox, and Graphviz are third-party open-source tools without Renesas technical support.
工具新闻 - 发布公告 PDF 148 KB 日本語
手册 - 开发工具 PDF 8.52 MB 日本語
工具新闻 - 发布公告 PDF 175 KB 日本語
发行说明 PDF 2.91 MB
应用说明 PDF 852 KB 日本語
AI 生成的摘要: Cyclomatic complexity measures the complexity of source code, indicating software quality by quantifying how complex the code is. Higher values suggest increased complexity and a greater chance of bugs. Using e² studio, cyclomatic complexity can be measured via two external tools: SourceMonitor and Lizard. These tools integrate with e² studio through its external tools feature, allowing users to measure and display complexity results directly within the IDE. The document details installation, configuration, and execution steps for both tools on a Windows 10 environment with e² studio 2024-01.
工具新闻 - 发布公告 PDF 147 KB 日本語
工具新闻 - 发布公告 PDF 913 KB 日本語
发行说明 PDF 2.64 MB
工具新闻 - 发布公告 PDF 170 KB 日本語
应用说明 PDF 980 KB 日本語
AI 生成的摘要: e² studio allows users to install, update, and add features or toolchains without rerunning the installer. It supports three installation types: Lite, Standard, and Custom, catering to different user needs from basic editing to advanced debugging. Updates can be performed via the installer or through the built-in update function, though adding device families or features requires separate procedures. The update process involves checking for updates, accepting licenses, and restarting the IDE to complete installation.
工具新闻 - 发布公告 PDF 176 KB 日本語
工具新闻 - 发布公告 PDF 217 KB 日本語
工具新闻 - 发布公告 PDF 154 KB 日本語
指南 PDF 1.43 MB 日本語
工具新闻 - 发布公告 PDF 176 KB 日本語
工具新闻 - 发布公告 PDF 182 KB 日本語
工具新闻 - 注意事项 PDF 183 KB 日本語
工具新闻 - 发布公告 PDF 262 KB 日本語
工具新闻 - 发布公告 PDF 129 KB 日本語
工具新闻 - 发布公告 PDF 154 KB 日本語
工具新闻 - 发布公告 PDF 127 KB 日本語
应用说明 PDF 1.11 MB 日本語
AI 生成的摘要: This guide explains how to create and build CMake projects using e² studio. It covers installing necessary tools such as e² studio, CMake, and GNU Make, creating a new CMake project, and configuring the builder by disabling the default CDT Core Builder and adding CMake and Make commands. The instructions include setting up environment variables and specifying CMake command parameters to generate native build files from platform-independent CMakeLists.txt configurations.
应用说明 PDF 2.26 MB 日本語
AI 生成的摘要: This document explains how to automate CUnit tests in Renesas e² studio using EGit and Jenkins. It covers creating a Git repository, pushing code changes via EGit, and setting up Jenkins to build and run CUnit tests automatically. The process includes configuring Jenkins to poll the repository, build the project, execute tests, and generate reports. It also details modifying the SampleC Unit project to link the CUnit static library and output test results to a file for automation.
应用说明 PDF 2.00 MB 日本語
AI 生成的摘要: This section explains how to install and set up Jenkins on Windows 10 for standalone use. It covers downloading the Jenkins installer from the official site, running the installer, and starting Jenkins via localhost. The initial admin password is retrieved from a specific file to unlock Jenkins. Users can skip plugin installation initially and start using Jenkins immediately. It also describes how to add more users through the Jenkins UI under Manage Jenkins > Manage Users.
工具新闻 - 发布公告 PDF 267 KB 日本語
工具新闻 - 发布公告 PDF 207 KB 日本語
工具新闻 - 发布公告 PDF 352 KB 日本語
工具新闻 - 发布公告 PDF 190 KB 日本語
应用说明 PDF 1.79 MB 日本語
AI 生成的摘要: This section explains how to install and configure EGit within the e² studio environment. It details selecting Git integration during e² studio installation, updating EGit via the Help menu, and adding the EGit update repository. The guide also covers setting user identification for Git commits by configuring user name and email in the preferences. Finally, it describes opening the EGit perspective to start using Git features within e² studio.
工具新闻 - 发布公告 PDF 200 KB 日本語
工具新闻 - 通告 PDF 1023 KB 日本語
工具新闻 - 发布公告 PDF 511 KB 日本語
工具新闻 - 注意事项 PDF 183 KB 日本語
工具新闻 - 发布公告 PDF 178 KB 日本語
工具新闻 - 发布公告 PDF 160 KB 日本語
工具新闻 - 注意事项 PDF 84 KB 日本語
工具新闻 - 注意事项 PDF 227 KB 日本語
工具新闻 - 注意事项 PDF 202 KB 日本語
工具新闻 - 注意事项 PDF 114 KB 日本語
76 项目

e² studio

See the table below for features of the software and tools available for use with the e² studio on RL78-family products.
For an overview of the functions and features of the e² studio, refer to e² studio (the general page).

Code generation support and other useful functions for the RL78 family

Tool nameDescription
Smart ConfiguratorA GUI-based tool that provides support for downloading and importing middleware for code generation and configuring various settings
Smart ManualA function that allows you to find various information in a hardware manual, such as on registers, without opening the actual hardware manual
Smart BrowserA function that allows you to easily search and show the latest version of the hardware manual, technical updates, application notes, and tool news for the Renesas microcontroller you are using
Assistant for OptimizationA function that assists in optimizing the size of program code

Note

  1. Only RL78/G2 and RL78/G24 are supported.

 

Compilers for the RL78 Family

Supported CompilerInformation on usage
Renesas
C Compiler Package for RL78 Family [CC-RL]
 
  • The version numbers which can be used with the e² studio:
    • For Windows: V1.01.00 and later versions
    • For Linux: V1.13.01 and later versions (Note1)
Open Source
・LLVM for Renesas RL78
  • The GNU compilers can be installed through selection with the installer of the e² studio. This requires an Internet connection.
  • The GNU compilers can be installed free of charge by downloading from the GNU Web site (https://llvm-gcc-renesas.com).
    Registration of these compilers with an e² studio which has already been installed is required.
  • LLVM for Renesas RL78 is available for 2021-04 and later versions of the e² studio.
IAR
IAR C/C++ Compiler for Renesas RL78
  • Debugging with the e² studio requires the building of load modules in the ELF/DWARF format.
  • IAR Systems provides plug-ins to handle projects for IAR compilers with Eclipse.
  • Contact IAR Systems K.K. for details:https://www.iar.com 

Note:

  1. CC-RL V1.13.01 supports Ubuntu version 20.04. Support for other versions of Ubuntu is under consideration for the next version.

Debugging tools for the RL78 Family

Note

  1. Installed in the e² studio as a standard item.
  2. Compatible with tools from IAR

 

QE: Tools for Particular Applications for the RL78 Family

Details: QE(Quick and Effective tool solution)

支持社区

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    E2 Studio版本:2025-12 使用芯片:R5F109GE 工程編譯出現警告, 請問評估天數到期後還能正常使用嗎? 若有使用限制是64K嗎?

    2026年5月22日
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    大家好,请问如何读取瑞萨RL78/G13单片机芯片版本型号,我想用来做一个唯一码的判断,类似于STM32的Unique device id,不知道是否有 ...

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知识库

  1. RL78微控制器触控开发

    ... //www.renesas.com/document/apn/rl78-family-touch-module-software-integration-system?language=ja&r=1521766 要安装e² studio,请点击此处:https://www.renesas.com/software-tool/e2studio-information-rl78-family要安装CS ...

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