boards: Introduce frdm_kw41z ble controller shield
The frdm_kw41z can be used as a standalone board or as an arduino shield. Zephyr already supports the standalone configuration, this change introduces support the arduino shield configuration. In the arduino configuration, the frdm_kw41z operates as a ble controller over serial hci. It can be attached to another board, such as the frdm_k64f or mimxrt1050_evk, which runs the ble host. Signed-off-by: Maureen Helm <maureen.helm@nxp.com>
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boards/shields/frdm_kw41z/Kconfig.shield
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boards/shields/frdm_kw41z/Kconfig.shield
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#
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# Copyright (c) 2018, NXP
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#
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# SPDX-License-Identifier: Apache-2.0
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#
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config SHIELD_FRDM_KW41Z
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bool "frdm_kw41z"
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boards/shields/frdm_kw41z/doc/frdm_kw41z.rst
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boards/shields/frdm_kw41z/doc/frdm_kw41z.rst
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.. _frdm_kw41z_shield:
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NXP FRDM-KW41Z
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##############
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Overview
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********
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The FRDM-KW41Z is a development kit enabled by the Kinetis |reg| W series
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KW41Z/31Z/21Z (KW41Z) family built on ARM |reg| Cortex |reg|-M0+ processor with
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integrated 2.4 GHz transceiver supporting Bluetooth |reg| Smart/Bluetooth
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|reg| Low Energy
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(BLE) v4.2, Generic FSK, IEEE |reg| 802.15.4 and Thread.
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The FRDM-KW41Z can be used as a standalone board or as an Arduino shield. This
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document covers usage as a shield; see :ref:`frdm_kw41z` for usage as a
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standalone board.
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Bluetooth Controller
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********************
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To use the FRDM-KW41Z as a Bluetooth low energy controller shield with a serial
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host controller interface (HCI):
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#. Download the MCUXpresso SDK for FRDM-KW41Z from the `MCUXpresso SDK Builder
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Website`_.
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#. Open the MCUXpresso IDE or IAR project in
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:file:`boards/frdmkw41z/wireless_examples/bluetooth/hci_black_box/bm`
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#. Open :file:`source/common/app_preinclude.h` and add the following line:
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.. code-block:: console
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#define gSerialMgrRxBufSize_c 64
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#. Build the project to generate a binary :file:`hci_black_box_frdmkw41z.bin`.
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#. Connect the FRDM-KW41Z board to your computer with a USB cable. A USB mass
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storage device should enumerate.
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#. Program the binary to flash by copying it to the USB mass storage device.
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#. Remove the USB cable to power down the board.
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#. Configure the jumpers J30 and J31 such that:
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- J30 pin 1 is attached to J31 pin 2
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- J30 pin 2 is attached to J31 pin 1
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The jumpers should be parallel to the Arduino headers. This configuration
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routes the UART RX and TX signals to the Arduino header, rather than to the
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OpenSDA circuit.
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#. Attach the FRDM-KW41Z to the Arduino header on your selected main board,
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such as :ref:`mimxrt1050_evk` or :ref:`frdm_k64f`.
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#. Set CONFIG_SHIELD_FRDM_KW41Z=y in your Zephyr bluetooth application.
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References
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**********
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.. target-notes::
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.. _MCUXpresso SDK Builder Website:
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https://mcuxpresso.nxp.com
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boards/shields/frdm_kw41z/frdm_kw41z.overlay
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boards/shields/frdm_kw41z/frdm_kw41z.overlay
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/*
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* Copyright (c) 2018, NXP
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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/ {
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chosen {
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zephyr,bt-uart = &arduino_serial;
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};
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};
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&arduino_serial {
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status = "ok";
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current-speed = <115200>;
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};
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