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 |
|
ADC |
on-chip |
Nuvoton, NuMaker ADC controller1 |
|
CAN |
on-chip |
||
Clock control |
on-chip |
Nuvoton NuMaker System Clock Controller (SCC)1 |
|
on-chip |
Nuvoton NuMaker Peripheral Clock Controller (PCC)1 |
||
on-chip |
Generic fixed-rate clock provider1 |
||
Ethernet |
on-chip |
Nuvoton, NuMaker Ethernet controller1 |
|
Flash controller |
on-chip |
Nuvoton NuMaker Flash Controller1 |
|
GPIO & Headers |
on-chip |
||
I2C |
on-chip |
Nuvoton, NuMaker I2C controller4 |
|
Input |
on-board |
Group of GPIO-bound input keys1 |
|
Interrupt controller |
on-chip |
ARMv8.1-M NVIC (Nested Vectored Interrupt Controller)1 |
|
LED |
on-board |
Group of GPIO-controlled LEDs1 |
|
MTD |
on-chip |
Flash node1 |
|
on-board |
Fixed partitions of a flash (or other non-volatile storage) memory1 |
||
Pin control |
on-chip |
Pin controller is responsible for controlling pin function selection and pin properties1 |
|
PWM |
on-chip |
Nuvoton, NuMaker PWM controller2 |
|
Reset controller |
on-chip |
Nuvoton, Numaker-RESET1 |
|
RTC |
on-chip |
Nuvoton, NuMaker RTC controller1 |
|
Serial controller |
on-chip |
||
SPI |
on-chip |
Nuvoton, NuMaker SPI controller4 |
|
SRAM |
on-chip |
Generic on-chip SRAM1 |
|
Timer |
on-chip |
ARMv8.1-M System Tick1 |
|
USB |
on-chip |
Nuvoton NuMaker USB 1.1 device controller1 |
|
Watchdog |
on-chip |
Nuvoton, NuMaker window watchdog timer1 |
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
The numaker_m55m1 board supports the runners and associated west commands listed below.
| flash | debug | attach | debugserver | rtt | |
|---|---|---|---|---|---|
| openocd | ✅ | ✅ | ✅ | ✅ | ✅ |
| pyocd | ✅ (default) | ✅ (default) | ✅ | ✅ | ✅ |
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.