NXP Semiconductors AN11844 Manuale utente

AN11844

PN7120 Arduino SBC Kit Quick Start Guide

Rev. 1.2 — 19 August 2016

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Document information

Info

Content

Keywords

OM5577, PN7120, Arduino, Kinetis, UDOO, LPC, NFC, P2P, Card

Emulation, Linux, Android, NullOS, RTOS

Abstract

This document gives a description on how to get started with the OM5577

PN7120 NFC Controller SBC Kit on boards featuring Arduino compatible

header.

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PN7120 Arduino SBC Kit Quick Start Guide

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Contact information

For more information, please visit:

http://www.nxp.com

Revision history

Rev

Date

Description

1.2

20160819

Added Android Marshmallow demo

1.1

20160620

Added Android NFC demo on UDOO Neo

1.0

20160518

First official release version

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PN7120 Arduino SBC Kit Quick Start Guide

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1. Introduction

This document gives a description on how to get started with the OM5577 PN7120 NFC-

Controller SBC Kit on platform featuring Arduino compatible header. This document

provides a step by step guide to the installation procedure of the hardware and the

software. Finally it shows PN7120 NFC Controller functionalities through demonstration

application.

Another PN7120 demo kit offers easy integration of Raspberry Pi or BeagleBone Black

platform, refer to OM5577 web page [16] for more information.

1.1 OM5577/PN7120ARD demo kit

OM5577/PN7120ARD kit is a high performance fully NFC compliant expansion board

compatible with Arduino Compatible Interface platforms (refer to [1] for more details). It

meets compliance with Reader mode, P2P mode and Card emulation mode standards.

The board features an integrated high performance RF antenna to insure high

interoperability level with NFC devices.

The demo kit is comprised of a PN7120 NFC Controller Board, a dedicated interface

board, and a NFC Sample Card.

PN7120 NFC Controller Board

Arduino Interface Board

NFC Sample Card

Fig 1. OM5577/PN7120ARD kit overview

The demo kit is fully described in UM11008 document [6].

1.2 Linux driver support

PN7120 NFC Controller is supported under GNU/Linux system using the NXP Linux

libnfc-nci software stack delivered through public GitHub repository

https://github.com/NXPNFCLinux/linux_libnfc-nci (for more details, refer to AN11697 [5]).

In chapter 2.4 it is described how to run an image with the already integrated driver on

your kit.

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1.3 Android driver support

PN7120 NFC Controller is supported from the official Android Open Source Project (refer

to [7] for more details) with the addition of dedicated patches (refer to AN11690 [6]).

In chapter 2.5 it is described how to run an image with the already integrated driver on

your kit.

1.4 RTOS and Null OS support

Since implementing NFC Forum NCI standardized API, the PN7120 NFC Controller can

be easily integrated into system based on RTOS or even without OS.

Code example are given in the scope of LPCXpresso and Kinetis Design Studio projects

and can easily be ported to any other system.

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2. Quick Startup on UDOO Neo

2.1 Required items

• UDOO Neo [2]

• Compatible MicroSD card of at least 4 Gb memory size (8 Gb for Android demo image)

• Computer (running Windows, Linux or Mac OS X) for SD/MicroSD card installation and

remote access to UDOO Neo

• Micro USB cable to connect UDOO Neo to the computer

• UDOO Neo demo image file (see [9])

• Other than for Linux NFC demo (see 2.4), where UDOO Neo is run as a headless IoT

device, one need for the Android NFC demo (see 2.5) in addition the following items:

- USB Mouse

- Micro HDMI cable to connect to Monitor / TV

2.2 Hardware preparation

First of all assemble the PN7120 NFC Controller Board with the Arduino Interface Board.

Fig 2. OM5577/PN7120ARD demo kit assembly

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Then stacked together the boards with the UDOO Neo.

Fig 3. OM5577/PN7120ARD and UDOO Neo stacked together

Note: The UDOO Neo feature a “two rows” connectors, the demo kit must be plugged in

the inner ones as show in below picture:

Fig 4. OM5577/PN7120ARD and UDOO Neo stacked together - zoom

2.3 Software preparation

The MicroSD needs to store an image specific for the OM5578 Linux or Android NFC

demo. This demo image can be downloaded from [9] and loaded to the MicroSD card,

following the installation guidelines provided here: http://www.udoo.org/docs-

neo/Getting_Started/Create_a_bootable_MicroSD_card_for_UDOO_Neo.html

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2.4 Linux NFC demo application

2.4.1 Application details

The demo application uses a part of the Linux libnfc-nci stack available on public GitHub

repository https://github.com/NXPNFCLinux/linux_libnfc-nci. The related source code can

then be found there (more details in document AN11697 [5]).

2.4.2 Starting the application

Start the UDOO Neo board as “USB Headless IoT Device”, by just inserting the Micro-SD

card in the related slot and connect the micro-USB cable to your PC. Be sure to have

installed the right driver specific for the USB connection, refer to

http://www.udoo.org/docs-neo/Basic_Setup/Usb_Direct_Connection.html.

Open a remote session through “Web Control Panel” by browsing to “192.168.7.2” in a

web browser, it should display the UDOO Neo platform dashboard:

Fig 5. UDOO dashboard

Then open a terminal session by clicking on “>_ REMOTE TERMINAL” button.

Note: there is other way to open a remote terminal allowing to run the demo application.

Refer to http://www.udoo.org/docs-neo/Getting_Started/Use_as_a_Computer.html and

http://www.udoo.org/docs-neo/Getting_Started/Use_as_a_headless_IoT_Device.html for

more details.

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Login: udooer

Password: udooer

Fig 6. UDOO Remote Terminal

Then browse to the Linux libnfc-nci stack directory (refer to chapter 1.2 for more details

about the Linux NFC software stack).

$ cd ~/linux_libnfc-nci

The application requires parameters to run:

$ ./nfcDemoApp <OPTIONS>

You can get the parameters details by launching the application help menu:

$ ./nfcDemoApp –-help

Fig 7. Linux demo application parameters

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The demo application offers 3 modes of operation:

•Polling: continuously waiting for a remote NFC device (tag or peer device) and

displays related information

•Tag writing: allows writing NDEF content to a NFC tag

•Tag emulation: allows sharing NDEF content to a NFC reader device

•Device push: allows pushing NDEF content to a remote NFC peer device

2.4.2.1 Polling mode

When in this mode, the application will display information of any discovered NFC tags or

remote NFC device. It is reached starting the application with “poll” parameter:

$ ./nfcDemoApp poll

Fig 8. Linux demo application polling mode

2.4.2.2 Device push mode

This mode allows pushing data to a remote NFC device (e.g. an NFC phone). It is

reached using “push” parameter:

$ ./nfcDemoApp push <OPTIONS>

Fig 9. Linux demo application device push mode

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You can get more information about the message format using “-h” or “--help” parameter:

$ ./nfcDemoApp push –-help

2.4.2.3 Tag emulation mode

This mode allows emulating an NFC tag (NFC Forum T4T) to share data to a remote

NFC reader (e.g. an NFC phone). It is reached using “share” parameter:

$ ./nfcDemoApp share <OPTIONS>

Fig 10. Linux demo application Tag emulation mode

You can get more information about the message format using “-h” or “--help” parameter:

$ ./nfcDemoApp share –-help

2.4.2.4 Tag writing mode

This mode allows writing data to an NFC tag. It is reached using “write” parameter:

$ ./nfcDemoApp write <OPTIONS>

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