NXP Semiconductors A71CL Manual de usuario

AN11803

A71CL Quick start guide for A71CLARD-ALI and Kinetis

Rev. 1.0 — 11 December 2018 Application note

353410 COMPANY PUBLIC

Document information

Information Content

Keywords Security IC, A71CL, A71CLARD-ALI, FRDM-K64F

Abstract This document helps getting started with A71CL-ARDALI and the FRDM-

K64F development platforms for K64 MCUs.

NXP Semiconductors AN11803

A71CL Quick start guide for A71CLARD-ALI and Kinetis

Application note Rev. 1.0 — 11 December 2018

COMPANY PUBLIC 353410 2 / 31

Revision history

Rev Date Description

1.0 20181211 First release

NXP Semiconductors AN11803

A71CL Quick start guide for A71CLARD-ALI and Kinetis

Application note Rev. 1.0 — 11 December 2018

COMPANY PUBLIC 353410 3 / 31

1 Introduction

This document explains how to get started with the A71CLARD-ALI development kit and

the FRDM-K64F development platforms for K64 MCUs. This guide provides an overview

of the hardware used, followed by detailed instructions for setting up the software

development environment. Finally, it describes how to run ID2 testsuite using FRDM-

K64F acting as the platform host MCU

NXP Semiconductors AN11803

A71CL Quick start guide for A71CLARD-ALI and Kinetis

Application note Rev. 1.0 — 11 December 2018

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2 A71CL Overview

The A71CL-ALI is a ready-to-use solution, enabling ease-of-use security for ID2-IoT

device makers to connect to Alibaba Cloud. It is a secure element capable of securely

storing and provisioning credentials and is already pre-provisioned with Alibaba ID2

credentials. It is based on A71 secure element hardware which runs an ID2 application

which manages the ID2 credentials.

The A71CL-ALI solution provides basic security measures protecting the IC against

many physical and logical attacks. It can be integrated with various host platforms and

operating systems to secure a broad range of applications.

NXP Semiconductors AN11803

A71CL Quick start guide for A71CLARD-ALI and Kinetis

Application note Rev. 1.0 — 11 December 2018

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3 System description

The A71CL evaluation setup presented in this document consists of an A71CL security

IC connected to the FRDM-K64F, FRDM-K82F or FRDM-KW41Z development platforms

through the A71CLARD-ALI Arduino compatible kit.

Figure 1. System architecture diagram

This getting-started guide is divided in three parts:

• Hardware overview and setup: It describes the FRDM-K64F development platform

and the A71CL Arduino compatible kit (A71CLARD-ALI) as well as how to mount them

together.

• Software setup: It describes how to configure the development environment and how

to import the required software packages.

• A71CL application examples execution: It describes how to run the A71CL

application examples contained in the A71CL-Ali Host software package.

Note: From now on, the term ‘Kinetis board’ will be used in this guide to avoid

redundancy and to improve readability. ‘Kinetis board’ refers to the FRDM-K64F.

NXP Semiconductors AN11803

A71CL Quick start guide for A71CLARD-ALI and Kinetis

Application note Rev. 1.0 — 11 December 2018

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4 Hardware overview

This setup uses a Kinetis board as a host MCU while the A71CL security IC acts as the

secure element. The following two boards are needed:

Table 1. Needed Boards

Item Type / 12NC Content

Arduino

Development Kit

A71CLARD-ALI

9353 763 88598

(only available

through NXP

sales contact)

Arduino Adapter Board +

MiniPCB containing a A71CL

secure element IC pre-

provisioned for Alibaba Cloud:

A7101CLTK2/T0BC2WE, 12NC:

9353 687 39118

MCU-Board FRDM-K64F

9353 262 93598

K64F Freedom MCU-

Development board

4.1 A71CL Arduino compatible development kit (A71CLARD)

The A71CLARD is an Arduino development kit containing two items as well as:

1. An A71CL Mini PCB board

2. An Arduino interface board, allowing the user to connect the A71CL to any host

featuring an Arduino compatible header (e.g., many LPC, Kinetis and i.MX boards in

the industry).

4.1.1 A71 Mini PCB board

The Mini PCB board is a small PCB containing the A71 solution and a set of jumpers for

the I2C host interface selection.

Figure 2 shows an image of the MiniPCB. It features two connectors that can be used

depending on the communication interface employed. The figure shows the jumpers

configuration that enables the use of the A71 I2C interface.

Figure 2. System architecture diagram

To enable the I2C communication protocol, it is necessary to configure JP5/6 according

to Table 2. JP2 connects the A71 to the on-board 3.3V voltage regulator on the MiniPCB

board. The jumpers JP3 and JP4 enable the I²C SDA/SCL pull-up resistors. JP7 can be

used to connect the A71 reset signal.

NXP Semiconductors AN11803

A71CL Quick start guide for A71CLARD-ALI and Kinetis

Application note Rev. 1.0 — 11 December 2018

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Table 2. Default MiniPCB Jumper settings

Jumper Setting Usage

JP1 Not set External VCC connection

JP2 3-4 Connect A71 to 3.3V regulator on MiniPCB

JP3 Set Connect I²C SDA pull-up resistor

JP4 Set Connect I²C SCL pull-up resistor

1-2 Use I²C address 0x92/0x93JP5

2-3 (Default) Use I²C address 0x90/0x91

JP6 1-2 Activate I²C interface

Not set (Default) A71 operatesJP7

Set A71 IC reset

The board schematic and layout are shown in Figure 3 and Figure 4

Figure 3. A71 Mini PCB board schematic

NXP Semiconductors AN11803

A71CL Quick start guide for A71CLARD-ALI and Kinetis

Application note Rev. 1.0 — 11 December 2018

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Figure 4. Mini PCB board silkscreen with default jumper positions marked black

4.1.2 Arduino interface board

The Arduino header board permits the user to interface the A71 Mini PCB with the Kinetis

board. Section 4.1.2 shows the board pinout.

Connection from the perspective of a matching Arduino Shield (top view)

Figure 5. A71 Arduino header

4.2 Freedom development platforms for Kinetis

The section details the Freedom development platforms for Kinetis supported by the

A71CL product support package.

4.2.1 FRDM-K64F

The Kinetis FRDM-K64F [6] development platform is a simple, yet sophisticated design,

featuring a Kinetis K64 series microcontroller, built on the ARM® Cortex®-M4 core. The

FRDM-K64F can be used to evaluate the K64, K63, and K24 Kinetis K series devices. It

features the MK64FN1M0VLL12 MCU, which boasts the maximum operation frequency

of 120 MHz, 1 MB of flash, 256 KB RAM, a full-speed USB controller, Ethernet controller,

secure digital host controller, and analog and digital peripherals.

The FRDM-K64F hardware is form-factor compatible with the Arduino R3 pin layout,

providing a broad range of expansion board options. The onboard interface includes

a six-axis digital accelerometer & magnetometer, RGB LED, SDHC, add-on Bluetooth

NXP Semiconductors AN11803

A71CL Quick start guide for A71CLARD-ALI and Kinetis

Application note Rev. 1.0 — 11 December 2018

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module, add-on RF module, Ethernet and OpenSDAv2, the NXP open-source hardware

embedded serial and debug adapter running an open-source bootloader.

Figure 6. FRDM-K64F Freedom development platform for Kinetis K64, K63 and K24 MCUs

NXP Semiconductors AN11803

A71CL Quick start guide for A71CLARD-ALI and Kinetis

Application note Rev. 1.0 — 11 December 2018

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5 Hardware setup

The hardware setup consists of mounting the different boards together.

First, plug the A71 Mini PCB board to the I2C plug of the Arduino interface board.

Figure 7. A71 Arduino kit mounted on Kinetis FRDM-K64F board

Second, plug the A71CL into the Kinetis board using the Arduino adaptors. The Arduino

shield board comes with male connectors below and female connectors on top.

Figure 8. Arduino interface board connected to the Kinetis board (FRDM-K64F)

Then, the A71 security IC is connected to the Kinetis board through the Arduino interface

board. See Figure 9

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