Step-by-step guide

This guide shows the single steps to perform an evaluation of the OPTIGA™ Authenticate NBT in the ADT use case. The scope is the evaluation of the OPTIGA™ Authenticate NBT Development Kit with an Android-based mobile phone.

Prerequisites

The following components have to be available to perform the evaluation:

Setting up the software

To set up the applications for the evaluation of the ADT use case, the following software is required:

In addition, the board needs to be programmed. To make sure everything runs smoothly, follow the provided installation guide below in order.

ModusToolbox™

Download and install ModusToolbox™ from the official website. Follow the installation wizard’s prompts to complete the installation.

Note

ModusToolbox™ 3.4 was used for this guide.

Open the ModusToolbox™ Setup and under Base Packages select ModusToolbox™ Tools Package and Eclipse IDE for ModusToolbox™ and under Additional Packages select ModusToolbox™ Programming tools. Click “Next” and follow the installation prompts.

Importing the example application

The OPTIGA™ Authenticate NBT ADT Application for ModusToolbox™ is directly available as a template application in ModusToolbox™. There is no need to manually clone the Git repository to your local hard drive, since this is implicitly handled by ModusToolbox™.

  1. Launch the Eclipse IDE for ModusToolbox™ (e.g., via the Windows Start Menu)

  2. (optional) Create a new workspace

  3. Create a new project:

    • File -> New -> ModusToolbox™ Application

    • In the Project Creator:

    • Choose Board Support Package (BSP): PSOC™ 6 BSPs -> CY8CPROTO-062S2-43439

      _images/nbt_xxx_user_guide_psoc.png

      Fig. 71 ModusToolbox board selection.

    • Select Application: Peripherals -> NBT Asynchronous Data Transfer

      _images/nbt_adt_user_guide_peripherals.png

      Fig. 72 ModusToolbox application selection.

Flashing the application to the board

_images/nbt_development_kit_label.png

Fig. 73 The OPTIGA™ Authenticate NBT Development Kit.

  1. Attach the shield to the host MCU board, as shown above (Fig. 73)

  2. Connect the board to your PC using the provided USB cable through the KitProg3 USB connector

  3. In the Eclipse IDE for ModusToolbox™, select the application project in the Project Explorer. Then in the Quick Panel, scroll down, and under Launches click NBT_Asynchronous_Data_Transfer Program (KitProg3_MiniProg4) and wait for it to build.

    _images/nbt_adt_eclipse.png

    Fig. 74 Flashing the application in ModusToolbox.

Note

If you are unsure about the assembly of the hardware components, please consult the Quick Start Guide included with the OPTIGA™ Authenticate NBT Development Kit

Android Studio

Set up the NBT Asynchronous Data Transfer mobile phone app using Android Studio and install it to the mobile phone (see installation instructions in NBT Personalization step-by-step guide). Be aware that the URL needs to be changed to https://github.com/Infineon/optiga-nbt-example-adt-android.git.

UART terminal

A UART terminal (or terminal emulator) needs to be installed. Go to the Tera Term website and look for the latest release under Download. It will redirect you to GitHub where you can download the executable under Assets. Follow the installation wizard’s prompts to complete the installation.

Note

Tera Term 5.3 was used for this guide.

Setting up the UART terminal

  • Connect the development kit’s host MCU board to the PC via USB (KitProg3 USB connector)

  • Start Tera Term, set the connection type to Serial and select the KitProg3 USB-UART

  • Under Setup -> Serial port change Speed to 115200 and press New setting

_images/nbt_xxx_tera_term.png

Fig. 75 Connecting Tera Term to the development kit.

After powering/resetting the development kit, the embedded application starts automatically and prints its logs to the UART terminal.

Evaluation of the use case

After following the above steps, the mobile phone and the development kit should be ready for evaluation.

Setup

The main configuration for this use case is the bridge tag setup (for personalization and operation). The NBT needs to be connected to a host MCU via I2C. So the shield has to be plugged into the development kit’s host MCU board.

_images/nbt_adt_system_hardware_arch_i2c_nfc.jpg

Fig. 76 Hardware setup for evaluation of this use case.

The mobile phone needs to have the NBT Asynchronous Data Transfer mobile phone app installed.

Personalization

The personalization of the OPTIGA™ Authenticate NBT is implicitly done during the startup of the embedded application via I2C. Thus, there are no additional steps required to personalize the NBT for the ADT use case.

Controlling the LED state

This section describes the operational part of the evaluation.

Prerequisites

  1. Power the development kit (eg. via PC connection or charger).

  2. (optional) Connect the UART terminal for debugging

  3. Launch the embedded application

    • The embedded application is automatically started directly after programming the board. If you want to restart it, you can do so by pressing the Reset button on the development kit (or power cycle it).

  4. Launch the NBT Asynchronous Data Transfer mobile phone app

    _images/nbt_adt_android_ui.png

    Fig. 77 Host parameterization via asynchronous data transfer mobile phone app user interface.

Writing the LED state

  1. Select Write to device in the app’s GUI

    • Use the light bulb to set the desired LED state (Enabled/Disabled)

    • Then physically tab the mobile phone to the development kit’s NFC antenna (eg. the attached shield), as described in the app’s GUI

  2. Press the PSoC™ host microcontroller’s user button (see Programming the board) to fetch the data previously fed to the OPTIGA™ Authenticate NBT

  3. Confirm that the LED state is updated accordingly on the board [*]

  4. Observe/Confirm the logged data on the UART terminal as seen in the screenshot below:

    _images/nbt_adt_tera_term_use_case.png

    Fig. 78 The UART terminal output when writing the LED state.

Reading the LED state

  1. Select Read from device in the app’s GUI

  2. Physically tap the mobile phone to the development kit’s NFC antenna

  3. Press the user button on the development kit and confirm that the read LED state in the app corresponds with the LED on the board

  4. Observe the logged data on the UART terminal