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NUMAKER PFM M487

Overview

The NuMaker PFM M487 is an Internet of Things (IoT) application focused platform specially developed by Nuvoton. The PFM-M487 is based on the NuMicro® M487 Ethernet series MCU with ARM® -Cortex®-M4F core.

Features:

  • 32-bit Arm Cortex®-M4 M487JIDAE MCU

  • Core clock up to 192 MHz

  • 512 KB embedded Dual Bank Flash and 160 KB SRAM

  • Audio codec (NAU88L25) with Microphone In and Headphone Out

  • Ethernet (IP101GR) for network application

  • USB 2.0 High-Speed OTG / Host / Device

  • USB 1.1 Full-Speed OTG / Host / Device

  • External SPI Flash (Winbond W25Q20) which can be regarded as ROM module

  • MicroSD Card slot for T-Flash

  • M487 extended interface 4 connector with 36 pins each

  • Arduino UNO compatible interface

  • Three push-buttons: one is for reset and the other two are for user-defined

  • Four LEDs: one is for power indication and the other three are for user-defined

  • On-board NU-Link-Me ICE debugger/programmer with SWD connector

More information about the board can be found at the PFM M487 User Manual [1].

Supported Features

The numaker_pfm_m487 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_pfm_m487/m487 target

Type

Location

Description

Compatible

CPU

on-chip

ARM Cortex-M4F CPU1

arm,cortex-m4f

Clock control

on-chip

Generic fixed-rate clock provider1

fixed-clock

GPIO & Headers

on-chip

Nuvoton NuMicro GPIO node4 4

nuvoton,numicro-gpio

Input

on-board

Group of GPIO-bound input keys1

gpio-keys

Interrupt controller

on-chip

ARMv7-M NVIC (Nested Vectored Interrupt Controller)1

arm,v7m-nvic

LED

on-board

Group of GPIO-controlled LEDs1

gpio-leds

Pin control

on-chip

Nuvoton NuMicro pinctrl node1

nuvoton,numicro-pinctrl

Serial controller

on-chip

NUVOTON NUMICRO FAMILY UART1 7

nuvoton,numicro-uart

SRAM

on-chip

Generic on-chip SRAM description1

mmio-sram

Timer

on-chip

ARMv7-M System Tick1

arm,armv7m-systick

The on-board 12-MHz crystal allows the device to run at its maximum operating speed of 192MHz.

More details about the supported peripherals are available in M480 TRM [2]

Building and Flashing

Flashing

Here is an example for the Hello World application.

On board debugger Nu-link-Me 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 PFM M487 IoT 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_pfm_m487 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_pfm_m487 samples/hello_world
west debug

Step through the application in your debugger.

References