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Renesas Electronics Corporation

Overview

Description

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).

Features

  • 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:
    • R7FA6M4AF3CFB MCU
    • 200MHz, Arm Cortex®-M33 core
    • 1MB Code Flash, 256kB SRAM
    • 144 pins, LQFP package, 20mm x 20mm x 1.70mm, 0.5mm pitch
    • Native pin access through 4x 40-pin male headers
    • MCU and USB current measurement points

Applications

Documentation

Design & Development

Software & Tools

Sample Code

Related Boards & Kits

Lab on the Cloud

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Videos & Training

Certifications

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

Partners

Zephyr Logo
Zephyr Project

The Zephyr Project is an open-source, scalable real‑time operating system (RTOS) designed for resource-constrained embedded systems and supports a wide range of hardware architectures and development boards. For the Renesas RA6M4 Evaluation Kit, Zephyr provides focused documentation covering board features, supported peripherals, and basic build, flashing, and debugging workflows to help developers quickly get started.

See the Zephyr Project RA6M4 Evaluation Kit Documentation

Support

Support Communities

  1. I-008 Intro to Debugging with RA and FSP 450 (EK-RA6M4) Course Materials

    Course Materials

  2. EK RA6M4 Debug Log

    Hi     I am new to Renesas based development environment. Following is my work environment     EVK :EK RA6M4.     IDE : e2studio    FSP : 5.5.0   I want to sea the debug log via J-Link OB USB (J10). is it possible to see the debug log through this port. If possible pleas ...

    Jan 23, 2025
  3. EK-RA6M4: how to see the print-outs from the sample project?

    Hello, I have an EK-RA6M4 evaluation board. I was trying to check the sample project "\ra-fsp-examples-master\ra-fsp-examples-master\example_projects\ek_ra6m4\sci_uart\sci_uart_ek_ra6m4_ep\e2studio". How can I see those print-outs from "APP_PRINT()"? I connected the J11 ...

    Apr 29, 2022
View All Results from Support Communities (158)

Knowledge Base

  1. How to print on UART using an EK-RA6M4

    Last updated on 27st April 2026   Summary of the video  < This video demonstrates how to use UART on EK-RA6M4. FSP supports UART communication on RA6M4 device with the r_sci_uart module >  UART (r_sci_uart) FSP module: https://renesas.github.io/fsp/group___s ...

  2. Secure Key Installation limitation on RA4M2, RA4M3, RA6M4 and RA6M5 in FSP 300

    Secure Key installation via the factory bootloader in FSP 3.0.0 is not supported for RSA 3K, RSA 4K, and ECC secp256k1 on the following devices:Certain EK-RA6M4 and EK-RA4M3 Evaluation Kits may contain the affected silicon. If your application requires secure key installation of RSA 3K ...

    Apr 29, 2021
  3. RA6M4, RA6M5: CPU Performance Difference when C-/S-caches are on/off

    ... environment initialization (SystemInit) is based on FSPv5.0.0 Compiler: GCC10.3.1 Compiler Optimization Level: O2 (Optimize More) System Clock configuration: ICLK=200MHz Board: EK-RA6M4The first method of CPU performance measurement: A simple For loop with accumulation operation Toggling GPIO before and after the calculation The CPU ...

    Dec 18, 2023
View All Results from Knowledge Base (24)
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