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

The development board configuration supports the following hardware features:

Interface

Controller

Driver/Component

NVIC

on-chip

nested vectored interrupt controller

SYSTICK

on-chip

system clock

UART

on-chip

serial port

Other hardware features are not yet supported on Zephyr porting.

More details about the supported peripherals are available in M480 TRM [2] Other hardware features are not currently supported by the Zephyr kernel.

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