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Overview

boards/nxp/frdm_mcxa156/doc/index.rst

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.. zephyr:board:: frdm_mcxa156

Overview

FRDM-MCXA156 are compact and scalable development boards for rapid prototyping of MCX A144/5/6 A154/5/6 MCUs. They offer industry standard headers for easy access to the MCU's I/Os, integrated open-standard serial interfaces, external flash memory and an on-board MCU-Link debugger. Additional tools like our Expansion Board Hub for add-on boards and the Application Code Hub for software examples are available through the MCUXpresso Developer Experience.

Hardware

  • MCX-A156 Arm Cortex-M33 microcontroller running at 96 MHz
  • 1MB dual-bank on chip Flash
  • 128 KB RAM
  • USB full-speed with on-chip FS PHY. USB Type-C connectors
  • 1x FlexCAN with FD, 1x I3Cs
  • On-board MCU-Link debugger with CMSIS-DAP
  • Arduino Header, FlexIO/LCD Header, SmartDMA/Camera Header, mikroBUS

For more information about the MCX-A156 SoC and FRDM-MCXA156 board, see:

  • MCX-A156 SoC Website_
  • MCX-A156 Datasheet_
  • MCX-A156 Reference Manual_
  • FRDM-MCXA156 Website_
  • FRDM-MCXA156 User Guide_
  • FRDM-MCXA156 Board User Manual_
  • FRDM-MCXA156 Schematics_

Supported Features

.. zephyr:board-supported-hw::

Shields for Supported Features

Some features in the table above are tested with Zephyr shields. These shields are tested on this board:

  • :ref:lcd_par_s035 - supports the Display interface. This board uses the MIPI_DBI interface of the shield, connected to the FlexIO on-chip peripheral.

Connections and IOs

The MCX-A156 SoC has 5 gpio controllers and has pinmux registers which can be used to configure the functionality of a pin.

+------------+-----------------+----------------------------+ | Name | Function | Usage | +============+=================+============================+ | PIO0_2 | UART | UART RX | +------------+-----------------+----------------------------+ | PIO0_3 | UART | UART TX | +------------+-----------------+----------------------------+

System Clock

The MCX-A156 SoC is configured to use FRO running at 96MHz as a source for the system clock. The MCX-A156 uses OS timer as the kernel timer.

Serial Port

The FRDM-MCXA156 SoC has 5 LPUART interfaces for serial communication. LPUART 0 is configured as UART for the console.

Programming and Debugging

.. zephyr:board-supported-runners::

Build and flash applications as usual (see :ref:build_an_application and :ref:application_run for more details).

Configuring a Debug Probe

A debug probe is used for both flashing and debugging the board. This board is configured by default to use the MCU-Link CMSIS-DAP Onboard Debug Probe.

Using LinkServer

Linkserver is the default runner for this board, and supports the factory default MCU-Link firmware. Follow the instructions in :ref:mcu-link-cmsis-onboard-debug-probe to reprogram the default MCU-Link firmware. This only needs to be done if the default onboard debug circuit firmware was changed. To put the board in DFU mode to program the firmware, short jumper JP5.

There are two options. The onboard debug circuit can be updated with Segger J-Link firmware by following the instructions in :ref:mcu-link-jlink-onboard-debug-probe. To be able to program the firmware, you need to put the board in DFU mode by shortening the jumper JP5. The second option is to attach a :ref:jlink-external-debug-probe to the 10-pin SWD connector (J24) of the board. Additionally, the jumper JP7 must be shortened. For both options use the -r jlink option with west to use the jlink runner.

.. code-block:: console

west flash -r jlink

Configuring a Console

Connect a USB cable from your PC to J21, and use the 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: frdm_mcxa156 :goals: flash

Open a serial terminal, reset the board (press the RESET button), and you should see the following message in the terminal:

.. code-block:: console

*** Booting Zephyr OS build v3.6.0-4478-ge6c3a42f5f52 *** Hello World! frdm_mcxa156/mcxa156

Debugging

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

.. zephyr-app-commands:: :zephyr-app: samples/hello_world :board: frdm_mcxa156/mcxa156 :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 build v3.6.0-4478-ge6c3a42f5f52 *** Hello World! frdm_mcxa156/mcxa156

Troubleshooting

.. include:: ../../common/segger-ecc-systemview.rst.inc

.. include:: ../../common/board-footer.rst.inc

.. _MCX-A156 SoC Website: https://www.nxp.com/products/processors-and-microcontrollers/arm-microcontrollers/general-purpose-mcus/mcx-arm-cortex-m/mcx-a-series-microcontrollers/mcx-a13x-14x-15x-mcus-with-arm-cortex-m33-scalable-device-options-low-power-and-intelligent-peripherals:MCX-A13X-A14X-A15X

.. _MCX-A156 Datasheet: https://www.nxp.com/docs/en/data-sheet/MCXAP100M96FS6.pdf

.. _MCX-A156 Reference Manual: https://www.nxp.com/webapp/Download?colCode=MCXAP100M96FS6RM

.. _FRDM-MCXA156 Website: https://www.nxp.com/design/design-center/development-boards-and-designs/general-purpose-mcus/frdm-development-board-for-mcx-a144-5-6-a154-5-6-mcus:FRDM-MCXA156

.. _FRDM-MCXA156 User Guide: https://www.nxp.com/document/guide/getting-started-with-frdm-mcxa156:GS-FRDM-MCXA156

.. _FRDM-MCXA156 Board User Manual: https://www.nxp.com/docs/en/user-manual/UM12121.pdf

.. _FRDM-MCXA156 Schematics: https://www.nxp.com/webapp/Download?colCode=SPF-90841