Infineon NGC1081 Manual de usuario

User manual

Please read the sections “Important notice” and “Warnings” at the end of this

document

V 1.0

https://www.infineon.com/ngc1081

2023-04-12

UM_2302_PL39_2304_090250

User manual for DEV_KIT_NGC1081

About this document

Scope and purpose

This document describes the evaluation kit for Infineon’s NGC1081 microcontroller, which supports near-

field communication (NFC). The kit has all the necessary components to enable the user to quickly start sensing

the world via NFC in active and/or passive mode. The required settings for both modes, for programming and

debugging, are covered in this document.

Intended audience

This document aims to help developers make use of the NGC1081 in NFC sensing applications. It can also serve

as a demo for customers when used to sense different parameters at the same time.

Reference board/kit

Product(s) embedded on a PCB with a focus on specific applications and defined use cases that may include

software. PCB and auxiliary circuits are optimized for the requirements of the target application.

Note: Boards do not necessarily meet safety, EMI and quality standards (for example UL, CE).

Figure 1 A photo of the Evaluation board EVAL_NGC1081

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Important notice

“Evaluation Boards and Reference Boards” shall mean products embedded on a printed circuit board

(PCB) for demonstration and/or evaluation purposes, which include, without limitation, demonstration,

reference and evaluation boards, kits and design (collectively referred to as “Reference Board”).

Environmental conditions have been considered in the design of the Evaluation Boards and Reference

Boards provided by Infineon Technologies. The design of the Evaluation Boards and Reference Boards

has been tested by Infineon Technologies only as described in this document. The design is not qualified

in terms of safety requirements, manufacturing and operation over the entire operating temperature

range or lifetime.

The Evaluation Boards and Reference Boards provided by Infineon Technologies are subject to functional

testing only under typical load conditions. Evaluation Boards and Reference Boards are not subject to the

same procedures as regular products regarding returned material analysis (RMA), process change

notification (PCN) and product discontinuation (PD).

Evaluation Boards and Reference Boards are not commercialized products, and are solely intended for

evaluation and testing purposes. In particular, they shall not be used for reliability testing or production.

The Evaluation Boards and Reference Boards may therefore not comply with CE or similar standards

(including but not limited to the EMC Directive 2004/EC/108 and the EMC Act) and may not fulfill other

requirements of the country in which they are operated by the customer. The customer shall ensure that

all Evaluation Boards and Reference Boards will be handled in a way which is compliant with the relevant

requirements and standards of the country in which they are operated.

The Evaluation Boards and Reference Boards as well as the information provided in this document are

addressed only to qualified and skilled technical staff, for laboratory usage, and shall be used and

managed according to the terms and conditions set forth in this document and in other related

documentation supplied with the respective Evaluation Board or Reference Board.

It is the responsibility of the customer’s technical departments to evaluate the suitability of the

Evaluation Boards and Reference Boards for the intended application, and to evaluate the completeness

and correctness of the information provided in this document with respect to such application.

The customer is obliged to ensure that the use of the Evaluation Boards and Reference Boards does not

cause any harm to persons or third-party property.

The Evaluation Boards and Reference Boards and any information in this document is provided "as is"

and Infineon Technologies disclaims any warranties, express or implied, including but not limited to

warranties of non-infringement of third-party rights and implied warranties of fitness for any purpose, or

for merchantability.

Infineon Technologies shall not be responsible for any damages resulting from the use of the Evaluation

Boards and Reference Boards and/or from any information provided in this document. The customer is

obliged to defend, indemnify and hold Infineon Technologies harmless from and against any claims or

damages arising out of or resulting from any use thereof.

Infineon Technologies reserves the right to modify this document and/or any information provided

herein at any time without further notice.

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Safety precautions

Note: Please note the following warnings regarding the hazards associated with development systems.

Table 1 Safety precautions

Caution: A drive that is incorrectly applied or installed can lead to component damage

or reduction in product lifetime. Wiring or application errors such as undersizing the

motor, supplying an incorrect or inadequate AC supply, or excessive ambient

temperatures may result in system malfunction.

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Table of contents

About this document....................................................................................................................... 1

Important notice ............................................................................................................................ 2

Safety precautions.......................................................................................................................... 3

Table of contents............................................................................................................................ 4

1The board at a glance.............................................................................................................. 5

1.1 Scope of supply .......................................................................................................................................5

1.2 Main features...........................................................................................................................................5

1.3 Board parameters and technical data....................................................................................................5

2System and functional description........................................................................................... 7

2.1 Operating in active mode........................................................................................................................7

2.1.1 Steps to power up the board in active mode....................................................................................7

2.1.2 Jumper connections in active mode.................................................................................................7

2.1.3 Potential applications in active mode...............................................................................................7

2.2 Operation in passive mode.....................................................................................................................8

2.2.1 Steps to power up the board in passive mode..................................................................................8

2.2.2 Jumper connections in passive mode...............................................................................................8

2.2.3 Potential applications in passive mode ............................................................................................8

3System design ....................................................................................................................... 9

3.1 Schematics ..............................................................................................................................................9

3.2 Layout....................................................................................................................................................10

3.3 Bill of materials......................................................................................................................................11

3.4 Connector and switch details ...............................................................................................................12

4System in operation ..............................................................................................................13

4.1 Shield 2GO .............................................................................................................................................13

4.2 Firmware................................................................................................................................................13

4.2.1 Steps to measure CO2.......................................................................................................................14

4.2.2 Steps to measure temperature........................................................................................................16

4.2.2.1 Active mode temperature measurement...................................................................................16

4.2.2.2 Passive mode temperature measurement ................................................................................17

Appendices ...................................................................................................................................18

ADebugger connection............................................................................................................................18

BNFC antenna..........................................................................................................................................19

Glossary .......................................................................................................................................20

Revision history.............................................................................................................................21

Disclaimer.....................................................................................................................................22

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The board at a glance

1The board at a glance

This development kit is a tool for engineers who want to use NGC1081 as a solution for sensing the world via

NFC and energy harvesting. NGC1081 is an NFC tag-side controller, which combines in one device the functions

of energy harvesting, NFC, sensing unit and motor control. NGC1081 is based on a 32-bit Arm® Cortex®-M0

processor core operating at a CPU frequency of 28 MHz. Standard peripheral modules such as UART, I2C, SPI

and 32 kHz RTC are included. The user manual reference number is UM_2302_PL39_2304_090250.

1.1 Scope of supply

The development kit consists of the evaluation board EVAL_NGC1081, packages of firmware, demo cell phone

app, and a USB-A to micro-USB cable for power supply. With the QR code printed on the shipping box, it is

possible to register the board at http://www.infineon.com to get access to all related documents and code

examples. The following packages will be available after registration:

•Standalone temperature-sensing firmware (with additional sensing examples using Shield 2GO (S2GO)

sensors)

•Firmware development SDK (without source code)

•Mobile application demo for Android (without source code)

•Evaluation board schematic, PCB layout files, Gerber files, and bill of materials (BOM)

1.2 Main features

•Arm® Cortex®-M0 controller

•ISO14443-A NFC interface

•60 kB non-volatile memory (NVM), 16 kB RAM

•Boot ROM

•12-bit SAR ADC/10-bit DAC

•Integrated temperature sensor

•Integrated H-bridge

•Energy harvesting

•128-bit AES accelerator

•True random number generator

•Chip UID, I²C, SPI and UART

1.3 Board parameters and technical data

Table 2 Operational conditions and parameters

Parameter

Symbol

Min.

Typ.

Max.

Unit

Note

Board power supply

VCCboard

Through micro-USB

IC power supply

VCCIC

2.8

3.6[*]

Stepped down on the

board, or connected

externally

GPIOs as outputs, high level

GPIO0 to GPIO15

2.2

2.5

Load 2 mA

GPIOs as outputs, low level

GPIO0 to GPIO15

0.2

Load 2 mA

GPIOs as inputs, high level

GPIO0 to GPIO15

1.75

3.6

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The board at a glance

Parameter

Symbol

Min.

Typ.

Max.

Unit

Note

GPIOs as inputs, low level

GPIO0 to GPIO15

0.7

Wake-up threshold, high level

WAKEUP

2.3

Wake-up threshold, low level

WAKEUP

0.8

Voltage at VCC_HB

VCC_HB

3.3

Avoid low-ohmic load on

VCC_HB over extended

period of time (several

seconds)

Current between MA and MB

I_HB

250

Analog input

AN_IN0 to AN_IN3

1.8

Analog outputs

AN_OUT

1.7

[*] The maximum external voltage should not exceed the selected clamping voltage of NGC1081 –see the

datasheet for the possible values of the clamping voltage.

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System and functional description

2System and functional description

The EVAL_NGC1081 has been developed to operate in two different modes. It can operate either in active mode

(by external wired power supply) or passive mode (by harvesting energy from the NFC antenna and without any

external wired power supply). Additionally, there is debugging mode, which is slightly different from active

mode.

2.1 Operating in active mode

As already mentioned, the EVAL_NGC1081 needs external power supply in active mode, between 3.0 V and

3.6 V, precisely.

2.1.1 Steps to power up the board in active mode

First, remove any reader device in the NFC antenna field, to avoid two conflicting power sources, then use one

of the two options below.

•Option 1: plug in a micro-USB and switch the S1 switch on.

The voltage from the micro-USB will then get stepped down internally to the recommended 3.3 V operating

voltage (additionally, please check the jumper connections in Table 3).

•Option 2: switch off the S1 switch, connect a direct 3.3 V to the pins marked with the 3.3 V label, and also

connect the ground to the pins marked with the GND label (additionally, please check the jumper

connections in Table 3).

2.1.2 Jumper connections in active mode

Table 3 Jumper connections in active mode

Jumper

Connection

Condition

JP8

Connected

–

JP10

Connected

When wake-up pin is not in use

JP5

Connect pins 2 to 3

When using half-bridge

All other jumpers may be connected or not depending on the application.

2.1.3 Potential applications in active mode

Active mode is an option in applications that require long time sensing. In that case, the board will be

programmed via NFC and supplied by an external wired power supply. Data sensed by the board can be read

via NFC at the end.

Potential applications:

•Temperature logger

•Smart thermostat

•CO2logger

•General environment parameter logging

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System and functional description

2.2 Operation in passive mode

In passive mode, the EVAL_NGC1081 not only communicates with the reader device (e.g., smartphone), but also

harvests energy from it.

2.2.1 Steps to power up the board in passive mode

•Check jumper connections in Table 4.

•Make sure the capacitor on VCC_CB is soldered (C9 = 1 µF (recommended value)).

•When planning to use the half-bridge, solder C2, C11, or C12 if needed for harvesting energy (as shown in

Figure 2).

Figure 2 Capacitors for storing harvested energy to use the MA pin as an output power source

2.2.2 Jumper connections in passive mode

Table 4 Jumper connections in passive mode

Jumper

Connection

Condition

JP8

Disconnected

–

JP10

Connected

When wake-up pin is not in use

JP5

Connect pins 1 to 2

When using half-bridge

All other jumpers may be connected or not depending on the application.

2.2.3 Potential applications in passive mode

Sensing the world in passive mode is practical, as it doesn’t require batteries. All you need is a reader device

(e.g., smartphone), which most people have.

Potential applications are usually those that require one-time sensing or one-time motor movement, such as:

•Temperature and humidity sensing

•Tire pressure sensing

•CO2sensingSmart lock applications

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System design

3System design

3.1 Schematics

Figure 3 EVAL_ NGC1081 schematics

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System design

3.2 Layout

Figure 4 EVAL_NGC1081 layout (top layer)

Figure 5 EVAL_NGC1081 layout (bottom layer)

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