The EK-RA6M4 evaluation kit enables users to effortlessly evaluate the features of the RA6M4 MCU Group and develop embedded systems applications using the Flexible Software Package (FSP) and e2 studio IDE. Utilize rich on-board features along with your choice of popular ecosystem add-ons to bring your big ideas to life.

Getting Started

Running the Quick Start Example Project

  1. The EK-RA6M4 comes pre-programmed with a Quick Start example project (source code provided in the EK-RA6M4 Example Project Bundle (ZIP)).
  2. Power up the EK-RA6M4 board through the debug USB port (J10) using the micro USB device cable connected to a 5V power source. The white power LED will light up.
  3. The Quick Start example project will begin to execute blinking the blue user LED.
  4. Refer to the EK-RA6M4 – Quick Start Guide (PDF | English, 日本語) to explore additional functionality of the Quick Start example project.

Developing Embedded Applications

  1. Modifying the Quick Start example project – Refer to the EK-RA6M4 Quick Start Guide for instructions on importing, modifying, and building the Quick Start example project
  2. Start with one of the many other example projects – Choose from many example projects provided in the EK-RA6M4 Example Project Bundle to learn about different peripherals of the RA6M4 MCU Group. These example projects can serve as excellent starting points for you to develop your custom applications.

Building a Custom Hardware

  1. Start by building a functional prototype – Utilize the EK-RA6M4 board with your choice of hundreds of popular ecosystem add-ons.
  2. Build custom hardware – Develop custom hardware by referring to the design and manufacturing information provided in the EK-RA6M4 v1 - Design Package (ZIP | English, 日本語).


  • Ecosystem & System Control Access
    • USB Full Speed host and device
    • Multiple 5V input sources
      • USB (Debug, Full Speed)
      • External power supply
    • SEGGER J-LinkTM on-board programmer and debugger
    • Debug modes
    • User LEDs and buttons
      • Three user LEDs (red, blue, green)
      • Power LED (white) indicating availability of regulated power
      • Debug LED (yellow) indicating the debug connection
      • Two user buttons
      • One reset button
    • Five most popular ecosystem expansions
    • MCU boot configuration jumper
  • Special Feature Access
    • Ethernet (RMII and PHY)
    • 64MB External Octo-SPI Flash
    • 32MB External Quad-SPI Flash
  • MCU Native Pin Access
    • 200MHz, Arm Cortex®-M33 core
    • 1MB Code Flash, 256kB SRAM
    • 144 pins, LQFP package
    • Native pin access through 4x 40-pin male headers
    • MCU and USB current measurement points
  • Kit Contents: EK-RA6M4 board, Micro USB device cable (type-A male to micro-B male), Micro USB host cable (type-A male to micro-B male), Ethernet patch cable



Design & Development

Software & Tools

Software & Tools

Software title
Software type
Flexible Software Package (FSP)
FSP is an enhanced software package designed to provide easy-to-use, scalable, high-quality software for embedded system designs using Renesas RA Family of Arm Microcontrollers. Note: FSP with e² studio Installer (Platform Installer) will install the e² studio tool, FSP packs, GCC toolchain, and Segger J-Link drivers required to use this software. No additional installations are required.
Software Package Renesas
Renesas Flash Programmer (Programming GUI)
Flash memory programming software [Support MCU/MPU and devices: RA, RE, RX, RL78, RH850, RISC-V MCU Renesas Synergy, DA1459x, DA1469x, DA1470x, Power Management, Renesas USB Power Delivery Family, ICs for Motor Driver/Actuator Driver, V850, 78K0R, 78K0]
Programmer (Unit/SW) Renesas
SEGGER™ J-Link™ Software and Documentation Package
Software utilities, firmware updates, and supporting documentation for the J-Link on-board programmer and debugger on the RA MCU kits.
Software Package SEGGER
QuickConnect Platform
QuickConnect platform enables fast prototyping by providing compatible hardware and software building blocks.
Software and Hardware Development Tools Renesas
4 items

Sample Code

Related Boards & Kits

Boards & Kits


The EK-RA6M4 meets the following certifications/standards. Refer to the EK-RA6M4 user manual for the disclaimer, precautions, and more details on the certifications.

EMC/EMI Standards

  • FCC Notice (Class A) – Part 15
  • Innovation, Science and Economic Development Canada ICES-003 Compliance:  CAN ICES-3 (A)/NMB-3(A)
  • CE Class A (EMC Directive 2004/108/EEC)
  • Taiwan Chinese National Standard 13438, C6357 compliance, Class A limits
  • Australia/New Zealand AS/NZS CISPR 32:2015, Class A

Material Selection, Waste, Recycling, and Disposal Standards 

  • EU RoHS
  • China SJ/T 113642014, 10-year environmental protection use period.

Safety Standards

  • UL 94V-0