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 [1].

Supported Features

The numaker_m2l31ki board supports the hardware features listed below.

on-chip / on-board: Feature integrated in the SoC / present on the board.
2 / 2: Number of instances that are enabled / disabled.
Click on the label to see the first instance of this feature in the board/SoC DTS files.
vnd,foo: Compatible string for the Devicetree binding matching the feature.
Click on the link to view the binding documentation.

`numaker_m2l31ki/m2l31xxx` target

Type	Location	Description	Compatible
CPU	on-chip	ARM Cortex-M23 CPU1	`arm,cortex-m23`
ADC	on-chip	Nuvoton, NuMaker ADC controller1	`nuvoton,numaker-adc`
CAN	on-chip	Nuvoton NuMaker CAN FD controller, using Bosch M_CAN IP2	`nuvoton,numaker-canfd`
Clock control	on-chip	Nuvoton NuMaker System Clock Controller (SCC)1	`nuvoton,numaker-scc`
	on-chip	Nuvoton NuMaker Peripheral Clock Controller (PCC)1	`nuvoton,numaker-pcc`
	on-chip	Generic fixed-rate clock provider1	`fixed-clock`
Flash controller	on-chip	Nuvoton NuMaker RRAM Memory Controller1	`nuvoton,numaker-rmc`
GPIO & Headers	on-chip	Nuvoton Numaker GPIO1 5	`nuvoton,numaker-gpio`
I2C	on-chip	Nuvoton, NuMaker I2C controller4	`nuvoton,numaker-i2c`
Interrupt controller	on-chip	ARMv8-M NVIC (Nested Vectored Interrupt Controller)1	`arm,v8m-nvic`
LED	on-board	Group of GPIO-controlled LEDs1	`gpio-leds`
MTD	on-chip	Flash node1	`soc-nv-flash`
MTD	on-board	Fixed partitions of a flash (or other non-volatile storage) memory1	`fixed-partitions`
Pin control	on-chip	Pin controller is responsible for controlling pin function selection and pin properties1	`nuvoton,numaker-pinctrl`
PPC architecture	on-chip	Nuvoton NuMaker USB Type-C power path controller1	`nuvoton,numaker-ppc`
PWM	on-chip	Nuvoton, NuMaker PWM controller2	`nuvoton,numaker-pwm`
Reset controller	on-chip	Nuvoton, Numaker-RESET1	`nuvoton,numaker-rst`
RTC	on-chip	Nuvoton, NuMaker RTC controller1	`nuvoton,numaker-rtc`
Serial controller	on-chip	Nuvoton, Numaker-UART1 7	`nuvoton,numaker-uart`
SPI	on-chip	Nuvoton, NuMaker SPI controller4	`nuvoton,numaker-spi`
SRAM	on-chip	Generic on-chip SRAM description1	`mmio-sram`
USB Type-C Port Controller	on-chip	Nuvoton NuMaker USB Type-C port controller1	`nuvoton,numaker-tcpc`
Timer	on-chip	ARMv8-M System Tick1	`arm,armv8m-systick`
USB	on-chip	Nuvoton NuMaker USB 1.1 device controller1	`nuvoton,numaker-usbd`
USB Type-C	on-chip	Nuvoton NuMaker USB Type-C VBUS controller1	`nuvoton,numaker-vbus`
Watchdog	on-chip	Nuvoton, NuMaker window watchdog timer1	`nuvoton,numaker-wwdt`

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 [1]

Building and Flashing

Flashing

Here is an example for the 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:

$ minicom -D /dev/ttyACM0

# From the root of the zephyr repository
west build -b numaker_m2l31ki samples/hello_world
west flash

Debugging

Here is an example for the Hello World application.

# From the root of the zephyr repository
west build -b numaker_m2l31ki samples/hello_world
west debug

Step through the application in your debugger.