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Overview

boards/renesas/ek_ra4c1/doc/index.rst

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.. zephyr:board:: ek_ra4c1

Overview

The EK-RA4C1, an Evaluation Kit for the RA4 Series, enables users to seamlessly evaluate the features of the RA4C1 MCU group. The users can use rich on-board features along with their choice of popular ecosystems add-ons to bring their big ideas to life.

The key features of the EK-RA4C1 board are categorized in three groups (consistent with the architecture of the kit) as follows:

Renesas RA4C1 Microcontroller Group

  • R7FA4C1BD3CFP MCU (referred to as RA MCU)
  • 80 MHz, Arm® Cortex®-M33 core
  • 512 KB Code Flash, 96 KB SRAM
  • 100 pins, LQFP package
  • Native pin access through 3 x 26-pin headers (not populated)
  • Tamper Detection embedded into J4
  • Segment LCD Board Interface
  • MCU current measurement points for precision current consumption measurement
  • Multiple clock sources – RA MCU oscillator and sub-clock oscillator crystals, providing precision 8.000 MHz and 32,768 Hz reference clocks. Additional low-precision clocks are available internal to the RA MCU

System Control and Ecosystem Access

  • Two 5 V input sources

    • USB (Debug)
    • External Power Supply 2-pin header (not populated)

  • Three Debug modes

    • Debug on-board (SWD)
    • Debug in (SWD)
    • Debug out (SWD, SWO and JTAG)

  • 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 ecosystems expansions

    • Two Seeed Grove® system (I2C/Analog) connectors (not populated)
    • SparkFun® Qwiic® connector (not populated)
    • Two Digilent PmodTM (SPI, UART and I2C) connectors
    • Arduino™ (UNO R3) connector
    • MikroElektronikaTM mikroBUS connector (not populated)

  • MCU boot configuration jumper

  • Low Voltage Mode voltage input and operation

Special Feature Access

  • 32 MB (256 Mb) External Quad-SPI Flash
  • CAN-FD (3-pin header)
  • External Battery Connector
  • Configuration Switch

Hardware

Detailed hardware features can be found at:

  • RA4C1 MCU: RA4C1 Group User's Manual Hardware_
  • EK-RA4C1 board: EK-RA4C1 - User's Manual_

Supported Features

.. zephyr:board-supported-hw::

Programming and Debugging

.. zephyr:board-supported-runners::

Flashing

Program can be flashed to EK-RA4C1 via the on-board SEGGER J-Link debugger. SEGGER J-link's drivers are available at https://www.segger.com/downloads/jlink/

To flash the program to board

  1. Connect to J-Link OB via USB port to host PC

  2. Make sure J-Link OB jumper is in default configuration as describe in EK-RA4C1 - User's Manual_. Note: SW4-4 needs to be set to OFF

  3. Execute west command

 .. code-block:: console

    west flash -r jlink

References

.. target-notes::

.. _EK-RA4C1 Website: https://www.renesas.com/en/design-resources/boards-kits/ek-ra4c1

.. _RA4C1 MCU group Website: https://www.renesas.com/en/products/ra4c1

.. _EK-RA4C1 - User's Manual: https://www.renesas.com/en/document/mat/ek-ra4c1-users-manual

.. _RA4C1 Group User's Manual Hardware: https://www.renesas.com/en/document/mah/ra4c1-group-users-manual-hardware