ST X-NUCLEO-NFC03A1 User manual

UM1799
User manual
Getting started with X-NUCLEO-NFC03A1 NFC card reader
board based on CR95HF IC for STM32 Nucleo
Introduction
The X-NUCLEO-NFC03A1 is an NFC card reader evaluation board based on CR95HF integrated circuit
to allow expansion of the STM32 Nucleo boards. The CR95HF is card reader IC for contact-less
application that provides the 13.56MHz air interface, frame coding and decoding for standard
application such as Near Field Communication (NFC) and that communicates with the Host through
UART or SPI interface. X-NUCLEO-NFC03A1 is compatible with the Arduino UNO R3 connector
assignment.
This expansion board can be plugged into the Arduino UNO R3 connectors of any STM32 Nucleo
board. The different expansion boards can be easily stacked to allow evaluation of different devices
with NFC card reader.
The board has the following features:
• On-board NFC card reader IC: CR95HF
• 47 x 34 mm, 4 turns, single layer 13.56 MHz inductive antenna etched on PCB and
associated tuning circuit.
• 4 general purpose LEDs
Figure 1: NFC card reader board based on CR95HF IC
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www.st.com

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Contents UM1799
Contents
1 Getting started................................................................................3
1.1 Hardware requirements....................................................................3
1.2 System requirements .......................................................................4
1.3 Setting up the board.........................................................................4
2 Hardware description.....................................................................5
2.1 X-NUCLEO-NFC03A1 board............................................................5
2.2 Host interface and GPIO connection................................................6
2.3 X-NUCLEO-NFC03A1 component placement..................................7
3 Component description..................................................................8
3.1 CR95HF integrated circuit................................................................8
4 Formal notices required by the U.S. Federal Communications
Commission ("FCC") ..............................................................................9
5 Formal notices required by the Industry Canada ("IC").............10
6 Hardware schematic diagrams....................................................11
7 Bill of material...............................................................................13
8 Revision history............................................................................15

DocID026680 Rev 1 3/16
UM1799 Getting started
1 Getting started
This section describes the hardware requirements for the X-NUCLEO-NFC03A1
evaluation board.
1.1 Hardware requirements
The X-NUCLEO-NFC03A1 is an expansion board for use with STM32 Nucleo boards. To
function correctly, the X-NUCLEO-IDB05A1 must be connected to the STM32 Nucleo
board as shown in Figure 2: "X-NUCLEO-NFC03A1 plugged into an STM32 Nucleo
board through the Arduino UNO R3 connector" below.
The STM32 Nucleo firmware and related documentation is available at
http://www.st.com/stm32nucleo
Figure 2: X-NUCLEO-NFC03A1 plugged into an STM32 Nucleo board through the Arduino UNO
R3 connector

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The interconnection between the STM32 Nucleo and the X-NUCLEO-NFC03A1 has been
designed to permit the use of any STM32 Nucleo board, although complete testing has
been performed using the NUCLEO-F401RE hosting the dynamic efficiency STM32.
1.2 System requirements
Using the Nucleo boards with the X-NUCLEO-NFC03A1 expansion board requires
the following software and hardware:
• Windows PC (XP, Vista, 7, 8) to install the firmware package
• USB type A to Mini-B USB cable to connect the Nucleo board to the PC
Installation of the board firmware package (order code: X-CUBE-NFC3) on the user's PC
requires the following:
• 128 MB of RAM
• 40 MB of hard disk space
The X-CUBE-NFC3 firmware and related documentation is available on www.st.com
1.3 Setting up the board
To set up the board, perform the following steps:
1. Connect the X-NUCLEO-NFC03A1 on the Nucleo board from the top as shown in
Figure 2: "X-NUCLEO-IDB05A1 plugged into an STM32 Nucleo board through the
Arduino UNO R3 connector"
2. Power the Nucleo board using the Mini-B USB cable delivered with the board.
3. Program the firmware in the STM32 on the Nucleo board using the provided firmware
example
4. Reset the MCU board using the reset button available on the Nucleo board
5. The evaluation kit is ready to be used

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UM1799 Hardwaredescription
2 Hardwaredescription
This section describes the X-NUCLEO-NFC3A1 features and provides information which
could be useful to understand the board schematic diagrams.
2.1 X-NUCLEO-NFC03A1 board
The board allows the user to test the functionality of the CR95HF integrated circuit. The
CR95HF supports reader/writer mode and supports following communication protocols:
ISO/IEC 14443 Type A and B, ISO/IEC 15693, ISO IEC18092, MIFARE ® Classic.
Its functionality can be exploited using the firmware package contained in the X-CUBE-
NFC3. It is fundamental to program the microcontroller on the STM32 Nucleo board. Please
refer to user manuals UM1724 and UM1725, available on www.st.com.
The CR95HF integrated circuit module and the STM32 Nucleo board are connected
through connectors CN5, CN6, CN8 and CN9 (see Table 1: "Interconnection between
STM32 Nucleo board and X-NUCLEO-NFC03A1 left-side connectors" for details).
Table 1: Interconnection between STM32 Nucleo board and X-NUCLEO-NFC03A1 left-
side connectors
Signal
Name
NC
IOREF
RESET
3V3
5V
GND GND
VIN
A0 A1 A2 A3 A4 A5
Left connector
Connector Name
CN6 Power CN8 Analog
Pin#
1 2 3 4 5 6 7 8 1 2 3 4 5 6
NUCLEO-L053R8
(MCU Port)
PA0 PA1 PA4 PB0
PC1/ PB9 PC0/ PB8
X-NUCLEO-NFC03A1
3V3 3V3
GND GND

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Hardware description UM1799
Table 2: Interconnection between STM32 Nucleo board and X-NUCLEO- NFC03A1 right-side
connectors
Signal
Name
D15
D14
AREF
GND
D13 D12 D11 D10
D9 D8 D7 D6 D5 D4 D3 D2 D1 D0
Right connector
Connector
Name
CN5 Digital CN9 Digital
Pin#
10 9 8 7 6 5 4 3 2 1 8 7 6 5 4 3 2 1
NUCLEO-L053R8
(MCU Port)
PB8
PB9
PA5 PA6 PA7 PB6
PC7
PA9 PA8
PB10
PB4 PB5 PB3
PA10
PA2 PA3
X-NUCLEO-NFC03A1
expansion board
GND
SPI_CLK
SPI_MISO SPI_MOSI
SPI_CS_NFC
Interface_Pin
UART_TX/IRQ_IN
MCU_LED1
MCU_LED2
MCU_LED2 MCU_LED2
UART_RX/IRQ_OUT
2.2 Host interface and GPIO connection
The X-NUCLEO-NFC03A1 board contains the CR95HF-VMD5T chip and is powered by
STM32 Nucleo Board. Chip is driven by the microcontroller either via the SPI link or the
UART link, selection is ensured by microcontroller at CR95HF reset.
Four LEDS connected to microcontroller GPIOs are general purpose.

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UM1799 Hardwaredescription
2.3 X-NUCLEO-NFC03A1 component placement
The following diagram shows the component placement on the X-NUCLEO-NFC03A1
board.
Figure 3: X-NUCLEO-NFC03A1 component placement details
General Purpose
LEDs
CR95HF
-
VMD5T
chip
Matching
circuitr
47*34 mm 4
turns antenna

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Component description UM1799
3 Componentdescription
The board has the following devices.
3.1 CR95HF integrated circuit
The CR95HF-VMD5T is an integrated transceiver IC for contactless application. It is
manages frame coding and decoding in Reader mode for application such as near field
communication (NFC) proximity and vicinity standards and embeds an analog front end to
provide the 13.56MHz air interface and supports ISO/IEC 14443 Type A and Type B,
ISO/IEC 15693 (single or double subcarrier) and ISO/IEC 18092 communication
protocols.
The part numbers used to develop this application are shown in Table 4: "SPBTLE-RF
details".
Table 4: CR95HF details
Feature Description
Sales type CR95HF-VMD5T
Package 32-lead, 5*5 VFQFPN
Operating voltage 2.7 to 5.5V

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UM1799 Formal notices required by the U.S. Federal
CommunicationsCommission("FCC")
4 Formal notices required by the U.S. Federal
CommunicationsCommission("FCC")
4.1. FCC Compliance Statement
4.1.1. Part 15.19
This device complies with Part 15 of the FCC Rules. Operation is subject to the following two
conditions: (1) this device may not cause harmful interference, and (2) this device must accept any
interference received, including interference that may cause undesired operation.
4.1.2. Part 15.19
Any changes or modifications to this equipment not expressly approved by STMicroelectronics may
cause harmful interference and void the user’s authority to operate this equipment.
4.1.3. Part 15.19
FCC ID: YCPNFC03A1

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Formal notices required by the Industry Canada
UM1799
("IC")
5 Formal notices required by the Industry Canada
("IC")
5.1. Compliance Statement
This device complies with Industry Canada licence-exempt RSS standard(s). Operation is subject to
the following two conditions: (1) this device may not cause interference, and (2) this device must
accept any interference, including interference that may cause undesired operation.
5.2. Declaration de Conformité
Le présent appareil est conforme aux CNR d’Industrie Canada applicables aux appareils radio
exempts de licence. L’exploitation est autorisée aux deux conditions suivantes : (1) l’appareil ne doit
pas produire de brouillage, et (2) l’utilisateur de l’appareil doit accepter tout brouillage radioélectrique
subi, même si le brouillage est susceptible d’en compromettre le fonctionnement.
5.3. IC ID
Le présent appareil est conforme aux CNR d’Industrie Canada applicables aux appareils radio
exempts de licence. L’exploitation est autorisée aux deux conditions suivantes : (1) l’appareil ne doit
pas produire de brouillage, et (2) l’utilisateur de l’appareil doit accepter tout brouillage radioélectrique
subi, même si le brouillage est susceptible d’en compromettre le fonctionnement.
IC ID: 8976A-NFC03A1