NXP Semiconductors AN11844 User manual

AN11844
PN7120 Arduino SBC Kit Quick Start Guide
Rev. 1.2 — 19 August 2016
373312
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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.

NXP Semiconductors
AN11844
PN7120 Arduino SBC Kit Quick Start Guide
AN11844
All information provided in this document is subject to legal disclaimers.
© NXP Semiconductors N.V. 2016.All rights reserved.
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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

NXP Semiconductors
AN11844
PN7120 Arduino SBC Kit Quick Start Guide
AN11844
All information provided in this document is subject to legal disclaimers.
© NXP Semiconductors N.V. 2016. All rights reserved.
Application note
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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.

NXP Semiconductors
AN11844
PN7120 Arduino SBC Kit Quick Start Guide
AN11844
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© NXP Semiconductors N.V. 2016. All rights reserved.
Application note
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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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AN11844
PN7120 Arduino SBC Kit Quick Start Guide
AN11844
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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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AN11844
PN7120 Arduino SBC Kit Quick Start Guide
AN11844
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© NXP Semiconductors N.V. 2016. All rights reserved.
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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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AN11844
PN7120 Arduino SBC Kit Quick Start Guide
AN11844
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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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PN7120 Arduino SBC Kit Quick Start Guide
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Log in the terminal using the default credentials:
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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PN7120 Arduino SBC Kit Quick Start Guide
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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

NXP Semiconductors
AN11844
PN7120 Arduino SBC Kit Quick Start Guide
AN11844
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© NXP Semiconductors N.V. 2016. All rights reserved.
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a
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>