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描述

Topics
e² studio supports the new device RX14T.

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
升级 - IDE
登录后下载 ZIP 81 KB 日本語
升级 - IDE
登录后下载 ZIP 93 KB 日本語
升级 - IDE
登录后下载 ZIP 87 KB 日本語
升级 - IDE
登录后下载 ZIP 66 KB 日本語
升级 - IDE
登录后下载 ZIP 74 KB 日本語
8 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 - 注意事项 PDF 108 KB 日本語
This is a tool news announcing notes for the CS+ and e² studio integrated development environment. Debugging the RX660 group of the RX family in user boot mode does not work properly. This document explains Conditions, Workaround, and Schedule for Fixing the Problem.
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.
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.
工具新闻 - 发布公告 PDF 153 KB 日本語
This is the Tool News announcing the revision upgrade to QE for Display [RX,RA] V3.7.0, Development Assistance Tool for Display Applications. QE for Display [RX,RA] is a development assistance tool that supports the development of embedded systems using the LCD display functions of display controllers from Renesas. With this revision upgrade, the tool now supports the new device RA8D2.
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
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 156 KB 日本語
工具新闻 - 发布公告 PDF 152 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 - 注意事项 PDF 150 KB 日本語
工具新闻 - 注意事项 PDF 114 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
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 - 注意事项 PDF 95 KB 日本語
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 1.98 MB 日本語
AI 生成的摘要: Porting projects from CS+ for the V850 family to e2 studio for the RX family involves understanding differences in emulator usability and functionality. Emulators like E2 Lite, E2, E1, and E20 support RX devices, with E2 and E2 Lite recommended for new RX microcontrollers. Key debugging features include hardware and software breakpoints, tracing, performance measurement, and hot plug-in support. Settings for emulator connection, launching debuggers, and debugging techniques are detailed, focusing on efficient migration and usage of emulators in the RX environment.
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 180 KB 日本語
工具新闻 - 发布公告 PDF 147 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 1.87 MB 日本語
AI 生成的摘要: This document explains how to port projects from CS+ to e2 studio for the Renesas RX family using emulators such as E2 Lite, E2, and E20. It details the differences in emulator settings, connection configurations, and debugging operations within e2 studio. Users learn how to open CS+ projects in e2 studio, configure emulator connections via the Debug Configurations window, and manage target devices. The document covers debugging features including breakpoints, tracing, memory and register manipulation, and performance measurements, facilitating smooth migration and effective debugging in the e2 studio environment.
工具新闻 - 注意事项 PDF 139 KB 日本語
工具新闻 - 发布公告 PDF 237 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 156 KB 日本語
工具新闻 - 发布公告 PDF 182 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 - 推介工具 PDF 864 KB 日本語
工具新闻 - 发布公告 PDF 154 KB 日本語
工具新闻 - 注意事项 PDF 191 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 - 注意事项 PDF 217 KB 日本語
工具新闻 - 注意事项 PDF 155 KB 日本語
应用说明 PDF 322 KB 日本語
AI 生成的摘要: CMake generates native build tool files from platform-independent configuration files named CMakeLists.txt. It enables building C/C++ projects for the Renesas RX Family (CC-RX) on Windows by generating appropriate project files and executing builds in two steps. Installation requires Renesas CC-RX compiler, CMake, and GNU Make, with environment variables set accordingly. The project structure includes key files like ccrx.cmake (toolchain file), CMakeLists.txt (configuration), and Linker.tmp (linker subcommand). The ccrx.cmake file specifies compiler, assembler, linker paths, and build options essential for cross-compiling with CC-RX.
工具新闻 - 注意事项 PDF 223 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 - 注意事项 PDF 169 KB 日本語
工具新闻 - 注意事项 PDF 169 KB 日本語
应用说明 PDF 1.01 MB
AI 生成的摘要: e2 studio integrates a Partner OS Debugging Plug-in to enable RTOS-aware debugging for Renesas RX devices using FreeRTOS with IoT libraries. It allows developers to create FreeRTOS projects, view and manage RTOS resources such as tasks, queues, timers, and stacks during debugging sessions. The environment supports Renesas RX family devices with specific toolchains and debuggers, enhancing real-time OS resource visibility and control within the development workflow.
手册 - 开发工具 PDF 3.73 MB 日本語
工具新闻 - 发布公告 PDF 194 KB 日本語
工具新闻 - 注意事项 PDF 1.66 MB 日本語
工具新闻 - 注意事项 PDF 160 KB 日本語
工具新闻 - 注意事项 PDF 127 KB 日本語
工具新闻 - 注意事项 PDF 147 KB 日本語
83 项目

e² studio

See the table below for features of the software and tools available for use with the e² studio on RX-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 RX 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

 

Compilers for the RX Family

Supported CompilerInformation on Usage
Renesas 
C/C++ Compiler Package for RX Family [CC-RX] 
 
  • The version numbers which can be used with the e² studio:
    • For Windows: V2.00.01 and later versions
    • For Linux: V3.06.01 and later versions (Note1)
Open Source 
・GCC for Renesas RX
  • 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.
IAR 
IAR C/C++ Compiler for Renesas RX
  • 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-RX V3.06.01 supports Ubuntu version 20.04. Support for other versions of Ubuntu is under consideration for the next version.

 

Debugging tools for the RX Family

Note

  1. Installed in the e² studio as a standard item.
  2. Compatible with tools from IAR
  3. The usable functions of the E20 emulator for RX family MCUs other than those of the RX600 and RX700 series are the same as for the E1.
  4. Product from a Renesas partner

 

QE: Tools for Particular Applications for RX Family

Details: QE(Quick and Effective tool solution)

Simpler Development of IoT Devices Connectable with Cloud Service

The e² studio supports the development of software for IoT devices to be connectable with Amazon Web Services (AWS) or Microsoft Azure Cloud Computing Service. The e² studio offers the following powerful functions for FreeRTOS or Azure RTOS.

  • Quick building after downloading the latest version of FreeRTOS or Azure RTOS project directly from GitHub®
  • Assisting in configuring RTOS, all required drivers, network stacks (TCP/IP, Wi-Fi, and MQTT), and component libraries (Device Shadow, Azure RTOS NetX duo so on)(Note1)
  • Embedding additional middleware and drivers (such as for USB and file-system support) in IoT devices

Usage in detail (RX Family Amazon FreeRTOS download with e² studio Rev.1.00 (PDF | English, 日本語)) 

图像
The e² studio supports the development of software for IoT devices to be connectable with Amazon Web Services (AWS)

Note

  1. The settable components of RTOS are as follows: MQTT, Greengrass Discovery, Device Shadow, Azure RTOS NetX duo , Secure Sockets, and TCP/IP

支持社区

  1. E2 Studio適用到期後的限制???

    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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