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Overview

boards/renesas/mck_ra4t1/doc/index.rst

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.. zephyr:board:: mck_ra4t1

Overview

The MCK-RA4T1 is an Motor Control Kit for Renesas RA4T1 MCU Group which integrates multiple series of software and pin-compatible Arm®-based 32-bit cores that share a common set of Renesas peripherals to facilitate design scalability and efficient platform-based product development.

The MCU in this series incorporates a high-performance Arm Cortex®-M33 core running up to 100 MHz with the following features:

  • Up to 256 KB code flash memory
  • 40 KB SRAM
  • Analog peripherals
  • Security and safety features

MCK-RA4T1 kit includes the items below:

  • RA4T1 CPU board (MCB-RA4T1_)
  • Inverter board (MCI-LV-1_)
  • Brushless DC Motor
  • Accessories (cables, standoffs, etc.)

The specifications of the CPU board are shown below:

MCU specifications

  • 100 MHz Arm® Cortex®-M33 core based RA4T1 MCU 64 pins, LFQFP package

  • ROM/SRAM size: 256KB/40KB

  • MCU input clock: 10MHz (Generate with external crystal oscillator)

  • Power supply: DC 5V, select one way automatically from the below:

    • Power is supplied from compatible inverter board
    • Power is supplied from USB connector

Connector

  • Inverter board connector
  • USB connector for J-Link OB
  • SCI connector for Renesas Motor Workbench communication
  • Through hole for CAN communication
  • 10 pin through hole for Arm debugger
  • PMOD connectors
  • MCU reset switch
  • User-controllable LED x2, Power LED x1

Onboard debugger

This product has the onboard debugger circuit, J-Link On-Board (hereinafter called “J-Link-OB”). When you write a program, connect the CPU board to PC with USB cable. J-Link-OB operates as debugger equivalent to J-Link. If connecting from flash programming tool (e.g. J-Flash Lite by SEGGER), set the type of debugger (tool) to “JLink”

Hardware

Detailed Hardware features for the RA4T1 MCU group can be found at:

  • The RA4T1 MCU group: RA4T1 Group User's Manual Hardware_
  • The MCB-RA4T1 board: MCB-RA4T1 - User's Manual_

Supported Features

.. zephyr:board-supported-hw::

Programming and Debugging

.. zephyr:board-supported-runners::

Applications for the mck_ra4t1 board can be built, flashed, and debugged in the usual way. See :ref:build_an_application and :ref:application_run for more details on building and running.

Configuring the Debug Probe

The MCK-RA4T1 board includes an on-board SEGGER J-Link debugger. SEGGER J-Link drivers are available at https://www.segger.com/downloads/jlink

To use the on-board J-Link debugger, ensure that:

  1. The J-Link OB is connected to the host PC via the USB port (CN9).

  2. The J-Link OB jumper is in the default configuration as described in the MCB-RA4T1 - User's Manual_.

Configuring a Console

Connect a USB cable from your PC to the on-board virtual COM port (CN9), and use a serial terminal of your choice (minicom, PuTTY, etc.) with the following settings:

  • Speed: 115200
  • Data: 8 bits
  • Parity: None
  • Stop bits: 1

Flashing

Here is an example for the :zephyr:code-sample:hello_world application.

.. zephyr-app-commands:: :zephyr-app: samples/hello_world :board: mck_ra4t1 :goals: flash

Open a serial terminal, reset the board (push the reset switch S1), and you should see the following message in the terminal:

.. code-block:: console

***** Booting Zephyr OS v4.3.0-xxx-xxxxxxxxxxxxx ***** Hello World! mck_ra4t1

Debugging

Here is an example for the :zephyr:code-sample:hello_world application.

.. zephyr-app-commands:: :zephyr-app: samples/hello_world :board: mck_ra4t1 :goals: debug

Open a serial terminal, step through the application in your debugger, and you should see the following message in the terminal:

.. code-block:: console

***** Booting Zephyr OS v4.3.0-xxx-xxxxxxxxxxxxx ***** Hello World! mck_ra4t1

References

  • MCK-RA4T1 Website_
  • RA4T1 MCU group Website_

.. _MCK-RA4T1 Website: https://www.renesas.com/en/design-resources/boards-kits/mck-ra4t1

.. _RA4T1 MCU group Website: https://www.renesas.com/en/products/ra4t1

.. _MCB-RA4T1 - User's Manual: https://www.renesas.com/en/document/mat/mcb-ra4t1-users-manual

.. _RA4T1 Group User's Manual Hardware: https://www.renesas.com/en/document/mah/ra4t1-group-users-manual-hardware

.. _MCB-RA4T1: https://www.renesas.com/en/design-resources/boards-kits/mcb-ra4t1

.. _MCI-LV-1: https://www.renesas.com/en/design-resources/boards-kits/mci-lv-1