RL78 Smart Configurator automatically generates initial-setting programs for MCUs.
It provides a quick and smart way of combining and configuring software to meet your needs, such as by configuring peripheral pins and importing middleware and drivers.


  • Importing Middleware/Drivers
  • Pin Settings
  • Learn More

Release Information

Supported IDEs and user guides(Note1)Related documentsLatest Ver.
Operating Environment
e² studioCS+IAR
e² studio plug-in (Note2)
RL78 Smart Configurator User's Guide: e² studio (PDF | English, 日本語)
RL78 Smart Configurator User's Guide: CS+ (PDF | English, 日本語)
RL78 Smart Configurator User's Guide: IAREW (PDF | English, 日本語)
Smart Configurator User's Manual: RL78 API Reference (PDF | English, 日本語)V1.10.0
Apr 22, 2024
Details of upgrade
Operating Environment

— Not Supported


  1. These user guides cover everything from installation to the setting of peripheral functions and the generation of code. Statements in each user guide are specific to the stated target integrated development environment.
  2. The package of the e² studio includes this plug-in.
End of Support for Windows 32-Bit Versions
Smart Configurator released after Dec. 2021 will support the 64-bit versions of Windows® only.
Microsoft® Windows® has shifted to the 64-bit environment. Therefore, Renesas will focus on supporting Smart Configurator for the 64-bit environment.
(Microsoft®, Windows® are registered trademarks of Microsoft Corporation in the United States and/or other countries. https://www.microsoft.com/legal/intellectualproperty/trademarks.aspx)

Target Devices


Type Title Date
Software & Tools - Software Log in to Download EXE 354.20 MB 日本語
1 item


Smart Configurator Feature - How to generate HEX values for Code Generator drivers

This video demonstrates how to use the Smart Configurator feature to generate HEX values for Code Generator drivers.

00:00 Opening
00:36 Introduce the new Smart Configurator feature to generate the codes in HEX values
00:46 How to configure the settings for the new feature
01:22 All drivers codes are generated in HEX values
01:41 Component types that supports this new feature

Video List

Additional Details

Importing Middleware/Drivers

RL78/G23 Group: Importing middleware (e.g. capacitive touch sensing middleware)

You can also use such middleware in conjunction with code from the driver code generator.

How to Use the RL78/G23 peripheral functions



Generating Driver Code

The Smart Configurator provides you with a GUI environment for generating driver code that handles the details of the settings of peripheral modules.。

Clock settings


You can make clock settings by selecting a clock source and making connections in the block diagram in the [Clocks configuration] window.

Component settings


In the [Software component configuration] window, you can make settings for peripheral modules. After selecting the module you wish to set up for use, you can check for errors in settings (with some types indicated on the display) or switch the channels for use by drivers of multi-channel modules.

Pin Settings

The assignments of pins can be set up through a GUI, which also checks and offers solutions for cases of contention for the same pin by multiplexed functions.

The [Pins Configuration] window (displayed per peripheral module)


Specifying a peripheral module in the [Pins Configuration] window displays the pin functions for use by the module and allows you to set the assignment of the functions to pins.

[MCU Package] window


The [MCU Package] window displays a symbolic view of the pins, indicating by colors which pins are and are not in use, which have been assigned contending multiplexed functions, and so on. This makes it easy to check the overall situation.

Automatic resolution of contention between pin functions


In cases of contention for a pin, clicking on the pin brings up a list allowing automatic changing of the assignment of the pin to resolve the contention.



How to migrate from Code Generator project to Smart Configurator project

Please refer to the following video for more information on code generation project migration.
How To Migrate From Code Generator Project to Smart Configurator Project