| .. _frdm_kw41z_shield: |
| |
| NXP FRDM-KW41Z Shield |
| ##################### |
| |
| Overview |
| ******** |
| |
| The FRDM-KW41Z is a development kit enabled by the Kinetis |reg| W series |
| KW41Z/31Z/21Z (KW41Z) family built on ARM |reg| Cortex |reg|-M0+ processor with |
| integrated 2.4 GHz transceiver supporting Bluetooth |reg| Smart/Bluetooth |
| |reg| Low Energy |
| (BLE) v4.2, Generic FSK, IEEE |reg| 802.15.4 and Thread. |
| |
| The FRDM-KW41Z can be used as a standalone board or as an Arduino shield. This |
| document covers usage as a shield; see :ref:`frdm_kw41z` for usage as a |
| standalone board. |
| |
| Bluetooth Controller |
| ******************** |
| |
| To use the FRDM-KW41Z as a Bluetooth low energy controller shield with a serial |
| host controller interface (HCI): |
| |
| #. Download the MCUXpresso SDK for FRDM-KW41Z from the `MCUXpresso SDK Builder |
| Website`_. |
| |
| #. Open the MCUXpresso IDE or IAR project in |
| :file:`boards/frdmkw41z/wireless_examples/bluetooth/hci_black_box/bm` |
| |
| #. Open :file:`source/common/app_preinclude.h` and add the following line: |
| |
| .. code-block:: console |
| |
| #define gSerialMgrRxBufSize_c 64 |
| |
| #. Build the project to generate a binary :file:`hci_black_box_frdmkw41z.bin`. |
| |
| #. Connect the FRDM-KW41Z board to your computer with a USB cable. A USB mass |
| storage device should enumerate. |
| |
| #. Program the binary to flash by copying it to the USB mass storage device. |
| |
| #. Remove the USB cable to power down the board. |
| |
| #. Configure the jumpers J30 and J31 such that: |
| |
| - J30 pin 1 is attached to J31 pin 2 |
| - J30 pin 2 is attached to J31 pin 1 |
| |
| The jumpers should be parallel to the Arduino headers. This configuration |
| routes the UART RX and TX signals to the Arduino header, rather than to the |
| OpenSDA circuit. |
| |
| #. Attach the FRDM-KW41Z to the Arduino header on your selected main board, |
| such as :ref:`mimxrt1050_evk` or :ref:`frdm_k64f`. |
| |
| #. Set ``-DSHIELD=frdm_kw41z`` when you invoke ``west build`` in |
| your Zephyr bluetooth application. For example, |
| |
| .. zephyr-app-commands:: |
| :zephyr-app: samples/bluetooth/peripheral_hr |
| :board: frdm_k64f |
| :shield: frdm_kw41z |
| :goals: build |
| |
| References |
| ********** |
| |
| .. target-notes:: |
| |
| .. _MCUXpresso SDK Builder Website: |
| https://mcuxpresso.nxp.com |
