This is the documentation for the latest (master) development branch of Zephyr. If you are looking for the documentation of previous releases, use the drop-down menu on the left and select the desired version.

NUVOTON 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.

PFM-M487

Features:

  • 32-bit Arm Cortex®-M4 M487JIDAE MCU

  • Core clock upto 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.

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 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 nuvoton_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 nuvoton_pfm_m487 samples/hello_world
west debug

Step through the application in your debugger.

References