NUMAKER M55M1

Overview

The NuMaker M55M1 is an Internet of Things (IoT) application focused platform specially developed by Nuvoton. The NuMaker-M55M1 is based on the NuMicro® M55M1 series MCU with ARM® -Cortex®-M55 core.

Features

32-bit Arm Cortex®-M55 M55M1H2LJAE MCU
Core clock up to 220 MHz
2 MB embedded Dual Bank Flash and 1344 KB SRAM
128 KB DTCM and 64 KB ITCM
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 M55M1 User Manual [1].

Supported Features

The numaker_m55m1 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_m55m1/m55m1xxx` target

Type	Location	Description	Compatible
CPU	on-chip	ARM Cortex-M55 CPU1	`arm,cortex-m55`
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 Flash Controller1	`nuvoton,numaker-fmc`
GPIO & Headers	on-chip	Nuvoton Numaker GPIO1 9	`nuvoton,numaker-gpio`
Interrupt controller	on-chip	ARMv8.1-M NVIC (Nested Vectored Interrupt Controller)1	`arm,v8.1m-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`
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 9	`nuvoton,numaker-uart`
SPI	on-chip	Nuvoton, NuMaker SPI controller4	`nuvoton,numaker-spi`
SRAM	on-chip	Generic on-chip SRAM description1	`mmio-sram`
Timer	on-chip	ARMv8.1-M System Tick1	`arm,armv8.1m-systick`

The on-board 12-MHz crystal allows the device to run at its maximum operating speed of 220 MHz.

More details about the supported peripherals are available in M55M1 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-M55M1 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_m55m1 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_m55m1 samples/hello_world
west debug

Step through the application in your debugger.