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Overview

boards/nuvoton/numaker_m2l31ki/doc/index.rst

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.. zephyr:board:: numaker_m2l31ki

Overview

The NuMaker M2L31KI is an Internet of Things (IoT) application focused platform specially developed by Nuvoton. The NuMaker-M2L31KI is based on the NuMicro® M2L31 series MCU with ARM® -Cortex®-M23 core.

Features:

  • 32-bit Arm Cortex®-M23 M2L31KIDAE MCU
  • Core clock up to 72 MHz
  • 512 KB embedded Dual Bank Flash and 168 KB SRAM
  • USB 2.0 Full-Speed OTG / Device
  • USB 1.1 Host
  • Arduino UNO compatible interface
  • One push-button is for reset
  • Two LEDs: one is for power indication and the other is for user-defined
  • On-board NU-Link2 ICE debugger/programmer with SWD connector

More information about the board can be found at the NuMaker M2L31KI User Manual_.

Supported Features

.. zephyr:board-supported-hw::

The on-board 12-MHz crystal allows the device to run at its maximum operating speed of 72MHz.

More details about the supported peripherals are available in M2L31 TRM_

Building and Flashing

.. zephyr:board-supported-runners::

Flashing

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

On board debugger Nu-link2 can emulate UART0 as a virtual COM port over usb, To enable this, set ISW1 DIP switch 1-3 (TXD RXD VOM) to ON. Connect the NuMaker-M2L31KI to your host computer using the USB port, then run a serial host program to connect with your board. For example:

.. code-block:: console

$ minicom -D /dev/ttyACM0

.. zephyr-app-commands:: :zephyr-app: samples/hello_world :board: numaker_m2l31ki :goals: flash

Debugging

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

.. zephyr-app-commands:: :zephyr-app: samples/hello_world :board: numaker_m2l31ki :goals: debug

Step through the application in your debugger.

VS Code Support

Here is to go through VS Code instead of command line.

Please install Nuvoton NuMicro Cortex-M Pack and follow getting start guide of this pack. This pack is a complete development toolkit for Nuvoton’s NuMicro Cortex-M microcontrollers in Visual Studio Code. URL of this pack is https://marketplace.visualstudio.com/items?itemName=Nuvoton.nuvoton-numicro-cortex-m-pack

References

.. target-notes::

.. _NuMaker M2L31KI User Manual: https://www.nuvoton.com/products/microcontrollers/arm-cortex-m23-mcus/m2l31-series/ .. _M2L31 TRM: https://www.nuvoton.com/products/microcontrollers/arm-cortex-m23-mcus/m2l31-series/