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[Upgraded to Version] e² studio 2024-04 (PDF | English, 日本語)
Supports Linux version CC-RH V2.06.01.
[Recommended] Set of 3 short videos for e² studio Quick Start Guide now available.

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.


Release Information

64-bit version2024-04Apr 22, 2024
32-bit version (Note1)V7.8.0Apr 20, 2020


  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

e² studio Integrated Development Environment User's Manual: Getting Started Guide RX, RL78, RH850 Family Rev.1.00 (PDF | English, 日本語)


e² studio FAQs
Where can I find e² studio tutorial?
Project Migration from CS+ to e² studio

See all related FAQs

Target Devices


Type Title Date
Upgrade - IDE Log in to Download ZIP 1,587.34 MB 日本語
Upgrade - IDE Log in to Download RUN 1,571.90 MB 日本語
2 items


Design & Development

e² studio Tips - Useful Shortcut Keys for Edit Operations

This video introduces useful shortcut keys for edit operations in e² studio.

Additional Details

e² studio

See the table below for features of the software and tools available for use with the e² studio on Rh850-family products.
For an overview of the functions and features of the e² studio, refer to e² studio (the general page).

Compilers for the RH850 Family

Supported CompilerInformation on Usage
C Compiler Package for RH850 Family [CC-RH]
  • The version numbers which can be used with the e² studio:
    • For Windows: V2.04.00 and later versions (Note1)
    • For Linux:V2.06.01 and later versions (Note2)
IAR C/C++ Compiler for Renesas RH850
  • 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 
Green Hills Software
Green Hills Compiler
  • The e² studio can be used to debug load modules in the ELF/DWARF format which have been built with the MULTI IDE from Green Hills Software.


  1. Supported by e² studio 2022-07 and later versions.
  2. CC-RH V2.06.01 supports Ubuntu version 20.04. Support for other versions of Ubuntu is under consideration for the next version.

Debugging tools for RH850 Family


  1. The E2 emulator can be used with V7.0.0 and later versions of the e² studio. The usable functions are the same as for the E1.