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boards: arm: atmel: Add sam4l_wm400_cape board
Initial Version. Signed-off-by: Gerson Fernando Budke <nandojve@gmail.com>
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‎boards/peregrine/index.rst

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.. _boards-peregrine:
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Peregrine
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#########
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.. toctree::
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:maxdepth: 1
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:glob:
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**/*

‎boards/peregrine/sam4l_wm400_cape/Kconfig.defconfig

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# Copyright (c) 2020-2025 Gerson Fernando Budke <nandojve@gmail.com>
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# SPDX-License-Identifier: Apache-2.0
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if BOARD_SAM4L_WM400_CAPE
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if NETWORKING
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config IEEE802154_RF2XX
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default y
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depends on IEEE802154
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endif # NETWORKING
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# By default the board uses BOSSA bootloader and require that to zephyr relocate
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# the code_partition. This should be disabled when using the whole flash without
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# bootloader.
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config USE_DT_CODE_PARTITION
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default y
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source "boards/common/usb/Kconfig.cdc_acm_serial.defconfig"
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endif # BOARD_SAM4L_WM400_CAPE

‎boards/peregrine/sam4l_wm400_cape/Kconfig.sam4l_wm400_cape

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# Copyright (c) 2020-2025 Gerson Fernando Budke <nandojve@gmail.com>
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# SPDX-License-Identifier: Apache-2.0
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config BOARD_SAM4L_WM400_CAPE
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select SOC_SAM4LC4B

‎boards/peregrine/sam4l_wm400_cape/board.cmake

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# Copyright (c) 2020-2025 Gerson Fernando Budke <nandojve@gmail.com>
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# SPDX-License-Identifier: Apache-2.0
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board_runner_args(jlink "--device=atsam4lc4b")
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board_runner_args(jlink "--speed=4000")
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board_runner_args(jlink "--reset-after-load")
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board_runner_args(jlink "-rtos GDBServer/RTOSPlugin_Zephyr")
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include(${ZEPHYR_BASE}/boards/common/jlink.board.cmake)
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board_runner_args(bossac "--bossac-port=/dev/ttyACM0")
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board_runner_args(bossac "--erase")
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include(${ZEPHYR_BASE}/boards/common/bossac.board.cmake)

‎boards/peregrine/sam4l_wm400_cape/board.yml

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board:
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name: sam4l_wm400_cape
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full_name: SAM4L WM-400 Cape Board
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vendor: peregrine
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socs:
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- name: sam4lc4b

‎boards/peregrine/sam4l_wm400_cape/doc/img/wm-400-pin-out.webp

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‎boards/peregrine/sam4l_wm400_cape/doc/index.rst

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.. zephyr:board:: sam4l_wm400_cape
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Overview
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********
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The SAM4L WM-400 Cape is a full featured design to enable IEEE 802.15.4 low
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power nodes. It is a Beaglebone Black cape concept with an Atmel AT86RF233
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radio transceiver. User can develop Touch interface and have access to many
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sensors and conectivity buses.
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Hardware
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********
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- ATSAM4LC4B ARM Cortex-M4 Processor
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- 12 MHz crystal oscillator
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- 32.768 kHz crystal oscillator
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- 1 RS-232 interface
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- 1 RS-485 full duplex interface
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- Micro-AB USB OTG host/device
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- 1 user touch button and One user pushbutton
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- 4 user LEDs
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- 1 AT86RF233 IEEE 802.15.4 transceiver
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- 1 MPL115A2 I²C Barometric Pressure/Temperature Sensor
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- 1 VCNL4010 Proximity/Light Sensor
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- 1 CC2D33S Advanced Humidity Temperature Sensor
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- 1 NCP18WF104J03RB NTC Temperature Sensor
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- 1 TEMT6000X01 Ambient Light Sensor
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Supported Features
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==================
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The ``sam4l_wm400_cape`` board supports the following hardware features:
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+-----------+------------+-------------------------------------+
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| Interface | Controller | Driver/Component |
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+===========+============+=====================================+
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| NVIC | on-chip | nested vector interrupt controller |
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+-----------+------------+-------------------------------------+
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| SYSTICK | on-chip | systick |
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+-----------+------------+-------------------------------------+
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| COUNTER | on-chip | counter |
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+-----------+------------+-------------------------------------+
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| GPIO | on-chip | gpio |
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+-----------+------------+-------------------------------------+
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| HWINFO | on-chip | Unique 120 bit serial number |
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+-----------+------------+-------------------------------------+
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| RADIO | on-chip | ieee802154 |
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+-----------+------------+-------------------------------------+
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| SPI | on-chip | spi |
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+-----------+------------+-------------------------------------+
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| TRNG | on-chip | entropy |
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+-----------+------------+-------------------------------------+
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| TWIM | on-chip | i2c master port-interrupt |
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+-----------+------------+-------------------------------------+
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| USART | on-chip | serial port |
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+-----------+------------+-------------------------------------+
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| USB | on-chip | USB device |
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+-----------+------------+-------------------------------------+
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Other hardware features are not currently supported by Zephyr.
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The default configuration can be found in the Kconfig
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:zephyr_file:`boards/peregrine/sam4l_wm400_cape/sam4l_wm400_cape_defconfig`.
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Connections and IOs
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===================
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For detailed information see `SAM4L WM-400 Cape`_ Information.
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System Clock
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============
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The SAM4L MCU is configured to use the 12 MHz internal oscillator on the board
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with the on-chip PLL to generate an 48 MHz system clock.
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Serial Port
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===========
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The ATSAM4LC4B MCU has 4 USARTs. One of the USARTs (USART3) is shared between
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RS-232 and RS-485 interfaces. The default console terminal is available at
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RS-232 onboard port or via USB device.
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Programming and Debugging
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*************************
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The SAM4L WM-400 Cape board has a 10-pin header to connect to a Segger JLink.
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Using the JLink is possible to program and debug the SAM4LC4B chip. The board
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came with a SAM-BA bootloader that only can be used to flash the software.
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Flashing
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========
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#. For JLink instructions, see :ref:`jlink-debug-host-tools`.
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#. Run your favorite terminal program to listen for output. Under Linux the
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terminal should be :code:`/dev/ttyACM0`. For example:
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.. code-block:: console
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$ minicom -D /dev/ttyACM0 -o
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The -o option tells minicom not to send the modem initialization
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string. Connection should be configured as follows:
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- Speed: 115200
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- Data: 8 bits
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- Parity: None
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- Stop bits: 1
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#. Connect the SAM4L WM-400 Cape board to your host computer using the
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USB debug port. Then build and flash the :zephyr:code-sample:`hello_world`
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application.
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.. zephyr-app-commands::
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:zephyr-app: samples/hello_world
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:board: sam4l_wm400_cape
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:goals: build flash
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You should see ``Hello World! sam4l_wm400_cape`` in your terminal.
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#. For SAM-BA bootloader instructions, see :ref:`atmel_sam_ba_bootloader`.
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#. Connect the SAM4L WM-400 Cape board to your host computer using the
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USB debug port pressing the S1 button. Then build and flash the
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:zephyr:code-sample:`hello_world` application. After programming the board
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the application will start automatically.
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.. zephyr-app-commands::
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:zephyr-app: samples/hello_world
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:board: sam4l_wm400_cape
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:goals: build flash
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:flash-args: -r bossac
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Debugging
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=========
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You can debug an application in the usual way. Here is an example for the
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:zephyr:code-sample:`hello_world` application.
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.. zephyr-app-commands::
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:zephyr-app: samples/hello_world
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:board: sam4l_wm400_cape
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:maybe-skip-config:
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:goals: debug
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References
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**********
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.. target-notes::
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.. _SAM4L WM-400 Cape:
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https://gfbudke.wordpress.com/2014/04/30/modulo-wireless-ieee-802-15-4zigbee-wm-400-e-wm-400l-bbbs

‎boards/peregrine/sam4l_wm400_cape/sam4l_wm400_cape-pinctrl.dtsi

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/*
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* Copyright (c) 2022-2025 Gerson Fernando Budke <nandojve@gmail.com>
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* SPDX-License-Identifier: Apache-2.0
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*/
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#include <dt-bindings/pinctrl/sam4lcXb-pinctrl.h>
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&pinctrl {
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spi0_default: spi0_default {
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group1 {
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pinmux = <PA21A_SPI_MISO>,
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<PA22A_SPI_MOSI>,
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<PA23A_SPI_SCK>,
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<PA13C_SPI_NPCS1>,
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<PA14C_SPI_NPCS2>;
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};
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};
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twi1_default: twi1_default {
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group1 {
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pinmux = <PB1A_TWIMS1_TWCK>,
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<PB0A_TWIMS1_TWD>;
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};
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};
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usart0_default: usart0_default {
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group1 {
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pinmux = <PB14A_USART0_RXD>,
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<PB15A_USART0_TXD>;
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};
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};
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usart0_hw_ctrl_flow: usart0_hw_ctrl_flow {
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group1 {
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pinmux = <PB14A_USART0_RXD>,
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<PB12A_USART0_RTS>;
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bias-pull-up;
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};
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group2 {
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pinmux = <PB15A_USART0_TXD>,
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<PB11A_USART0_CTS>,
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<PB13A_USART0_CLK>;
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};
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};
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usart1_default: usart1_default {
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group1 {
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pinmux = <PA15A_USART1_RXD>,
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<PA16A_USART1_TXD>;
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};
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};
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usbc_default: usbc_default {
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group1 {
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pinmux = <PA25A_USBC_DM>,
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<PA26A_USBC_DP>;
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};
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};
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};

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