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boards: renesas: Add initial support for EK-RA4W1 board
Initial commit to support Renesas EK-RA4W1 board Signed-off-by: Quy Tran <[email protected]> Signed-off-by: Duy Phuong Hoang. Nguyen <[email protected]>
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‎boards/renesas/ek_ra4w1/Kconfig.ek_ra4w1‎

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# Copyright (c) 2024 Renesas Electronics Corporation
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# SPDX-License-Identifier: Apache-2.0
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config BOARD_EK_RA4W1
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select SOC_R7FA4W1AD2CNG

‎boards/renesas/ek_ra4w1/board.cmake‎

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# Copyright (c) 2024 Renesas Electronics Corporation
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# SPDX-License-Identifier: Apache-2.0
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board_runner_args(jlink "--device=R7FA4W1AD")
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include(${ZEPHYR_BASE}/boards/common/jlink.board.cmake)

‎boards/renesas/ek_ra4w1/board.yml‎

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board:
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name: ek_ra4w1
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vendor: renesas
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socs:
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- name: r7fa4w1ad2cng

‎boards/renesas/ek_ra4w1/doc/ek-ra4w1-board.webp‎

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‎boards/renesas/ek_ra4w1/doc/index.rst‎

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.. _ek_ra4w1:
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RA4W1 Evaluation Kit
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####################
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Overview
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********
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The Renesas RA4W1 is the first Bluetooth® 5.0 Low Energy fully compliant with 2Mbit High-Throughput
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(HT) and Long Range support in a single chip MCU of Renesas RA4 product series for IoT applications
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that require a high-performance Arm® Cortex®-M4 core at a very attractive price point. The RA4W1 MCU
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has full function support for Bluetooth 5.0 Low Energy long-range and mesh networking, and provides
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excellent reception performance. RA4W1 is geared towards IoT application requiring Security, large
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embedded RAM and low power consumption.
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**MCU Native Pin Access**
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- R7FA4W1AD2CNG
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- QFN-56 package
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- On-chip memory: 512-KB ROM, 96-KB RAM, 8-KB data flash memory
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**Power-supply voltage**
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- USB connector: 5-V input
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- Power-supply IC: 5-V input, 3.3-V output
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- External power-supply header*1: 3.3-V input, 2 pins x 1
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**Main clock**
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- Crystal oscillator (surface-mount technology (SMT)) for the main system clock
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- Crystal oscillator or ceramic resonator (lead type) for the main system clock
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**Sub-clock**
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- Crystal oscillator (SMT) for the sub-clock
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**Bluetooth Low Energy**
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- Bluetooth Low Energy (BLE) circuit x1
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- Range of frequency: 2402 to 2480 MHz
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- Maximum transmission output power: 4 dBm (in 4-dBm output mode)
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- Output variation: +2 dB
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**Push switches**
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- Reset switch x 1
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- User switch x 1
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**LED**
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- Power indicator: green x 1
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- User: green x 2
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- ACT LED: green x 1
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**Conetivity**
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- Connector for an on-board emulator: USB Micro-B
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- Connector for a USB serial-conversion interface: USB Micro-B
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- Pmod™ connector: Angle type, 12 pins
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- Arduino™ UNO connectors
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- Emulator reset switch
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.. figure:: ek-ra4w1-board.webp
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:align: center
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:alt: RA4W1 Evaluation Kit
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EK-RA4W1 Board Functional Area Definitions (Credit: Renesas Electronics Corporation)
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Hardware
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********
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Detail Hardware feature for the RA4W1 MCU group can be found at `RA4W1 Group User's Manual Hardware`_
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.. figure:: ra4w1-block-diagram.webp
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:width: 442px
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:align: center
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:alt: RA4W1 MCU group feature
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RA4W1 Block diagram (Credit: Renesas Electronics Corporation)
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Detail Hardware feature for the EK-RA4W1 MCU can be found at `EK-RA4W1 - User's Manual`_
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Supported Features
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==================
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The below features are currently supported on Zephyr OS for EK-RA4W1 board:
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+-----------+------------+----------------------+
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| Interface | Controller | Driver/Component |
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+===========+============+======================+
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| GPIO | on-chip | gpio |
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+-----------+------------+----------------------+
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| MPU | on-chip | arch/arm |
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+-----------+------------+----------------------+
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| NVIC | on-chip | arch/arm |
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+-----------+------------+----------------------+
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| UART | on-chip | serial |
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+-----------+------------+----------------------+
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Other hardware features are currently not supported by the port.
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Programming and Debugging
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*************************
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Applications for the ``ek_ra4w1`` board target configuration can be
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built, flashed, and debugged in the usual way. See
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:ref:`build_an_application` and :ref:`application_run` for more details on
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building and running.
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Flashing
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========
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Program can be flashed to EK-RA4W1 via the on-board SEGGER J-Link debugger.
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SEGGER J-link's drivers are avaialbe at https://www.segger.com/downloads/jlink/
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To flash the program to board
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1. Connect to J-Link OB via USB port to host PC
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2. Make sure J-Link OB jumper is in default configuration as describe in `EK-RA4W1 - User's Manual`_
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3. Execute west command
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.. code-block:: console
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west flash -r jlink
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Debugging
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=========
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You can use Segger Ozone (`Segger Ozone Download`_) for a visual debug interface
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Once downloaded and installed, open Segger Ozone and configure the debug project
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like so:
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* Target Device: R7FA4W1AD
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* Target Interface: SWD
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* Target Interface Speed: 4 MHz
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* Host Interface: USB
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* Program File: <path/to/your/build/zephyr.elf>
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**Note:** It's verified that we can debug OK on Segger Ozone v3.30d so please use this or later
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version of Segger Ozone
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References
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**********
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- `EK-RA4W1 Website`_
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- `RA4W1 MCU group Website`_
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.. _EK-RA4W1 Website:
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https://www.renesas.com/us/en/products/microcontrollers-microprocessors/ra-cortex-m-mcus/ek-ra4w1-evaluation-kit-ra4w1-mcu-group
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.. _RA4W1 MCU group Website:
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https://www.renesas.com/us/en/products/microcontrollers-microprocessors/ra-cortex-m-mcus/ra4w1-low-energy-single-chip-32-bit-microcontrollers-48mhz-bluetooth-50
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.. _EK-RA4W1 - User's Manual:
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https://www.renesas.com/us/en/document/man/ek-ra4w1-users-manual
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.. _RA4W1 Group User's Manual Hardware:
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https://www.renesas.com/us/en/document/man/renesas-ra4w1-group-users-manual-hardware
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.. _Segger Ozone Download:
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https://www.segger.com/downloads/jlink#Ozone

‎boards/renesas/ek_ra4w1/doc/ra4w1-block-diagram.webp‎

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‎boards/renesas/ek_ra4w1/ek_ra4w1-pinctrl.dtsi‎

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/*
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* Copyright (c) 2024 Renesas Electronics Corporation
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* SPDX-License-Identifier: Apache-2.0
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*/
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&pinctrl {
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sci0_default: sci0_default {
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group1 {
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/* tx rx */
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psels = <RA_PSEL(RA_PSEL_SCI_0, 1, 1)>,
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<RA_PSEL(RA_PSEL_SCI_0, 1, 0)>;
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};
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};
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};

‎boards/renesas/ek_ra4w1/ek_ra4w1.dts‎

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/*
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* Copyright (c) 2024 Renesas Electronics Corporation
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* SPDX-License-Identifier: Apache-2.0
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*/
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/dts-v1/;
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#include <renesas/ra/ra4/r7fa4w1ad2cng.dtsi>
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#include <dt-bindings/gpio/gpio.h>
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#include "ek_ra4w1-pinctrl.dtsi"
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/ {
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model = "Renesas EK-RA4W1";
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compatible = "renesas,ra4w1", "renesas,ra";
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chosen {
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zephyr,sram = &sram0;
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zephyr,flash = &flash0;
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zephyr,console = &uart0;
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zephyr,shell-uart = &uart0;
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};
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leds {
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compatible = "gpio-leds";
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led1: led1 {
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gpios = <&ioport1 6 GPIO_ACTIVE_HIGH>;
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label = "LED1";
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};
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led2: led2 {
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gpios = <&ioport4 4 GPIO_ACTIVE_HIGH>;
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label = "LED2";
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};
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};
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aliases {
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led0 = &led1;
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};
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};
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&subclk {
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status = "okay";
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};
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&sci0 {
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pinctrl-0 = <&sci0_default>;
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pinctrl-names = "default";
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status = "okay";
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uart0: uart {
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current-speed = <115200>;
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status = "okay";
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};
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};
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&ioport1 {
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status = "okay";
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};
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&ioport4 {
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status = "okay";
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};

‎boards/renesas/ek_ra4w1/ek_ra4w1.yaml‎

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identifier: ek_ra4w1
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name: Renesas EK-RA4W1
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type: mcu
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arch: arm
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ram: 96
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flash: 512
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toolchain:
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- zephyr
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- gnuarmemb
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supported:
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- gpio
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- uart

‎boards/renesas/ek_ra4w1/ek_ra4w1_defconfig‎

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# Copyright (c) 2024 Renesas Electronics Corporation
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# SPDX-License-Identifier: Apache-2.0
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CONFIG_SYS_CLOCK_HW_CYCLES_PER_SEC=32000000
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# Enable GPIO
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CONFIG_GPIO=y
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CONFIG_PINCTRL=y
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# Enable Console
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CONFIG_SERIAL=y
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CONFIG_UART_INTERRUPT_DRIVEN=y
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CONFIG_UART_CONSOLE=y
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CONFIG_CONSOLE=y
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CONFIG_BUILD_OUTPUT_HEX=y
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CONFIG_BUILD_NO_GAP_FILL=y

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