NXP AN13027 Application note

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AN13027

EdgeLockTM SE05x Quick start guide with i.MX 8M

Rev. 1.1 — 7 December 2020 Application note

Document information

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Keywords EdgeLock SE05x, Plug & Trust middleware, i.MX 8M

Abstract This document explains how to get started with the EdgeLock SE05x Plug &

Trust middleware using the EdgeLock SE05x development boards and i.MX 8M board. It provides detailed instructions for connecting the boards, installing the software, running the EdgeLock SE05x Plug & Trust project examples and executing the ssscli tool

NXP Semiconductors

EdgeLockTM SE05x Quick start guide with i.MX 8M

Revision history

Revision number Date Description

1.0 2020-10-21 First document release.

1.1 2020-12-07 Updated to latest template and fixed broken links

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1 How to use this document

The Plug & Trust middleware includes a set of project examples that demonstrate the use of EdgeLock SE05x product family in the latest IoT security use cases. This document provides detailed instructions to run project examples for EdgeLock SE05x in i.MX 8M board. The main body of this document should be used in this sequence:

1. Order board samples. Section 2 contains the ordering details of the demo boards required in this document;

2. Prepare the hardware. Section 3 describes how to setup the OM-SE05xARD and i.MX 8M boards.

3. Flash the microSD card image. Section 4 describes how to create a micro-SD card with the Linux image with the pre-installed Plug & Trust middleware.

4. Run project examples. Section 5 describes how to run EdgeLock SE05x included in Plug & Trust middleware.

Supplementary material is provided in the appendices.

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2 Hardware required

The EdgeLock SE05x works as an auxiliary security device attached to a host controller, communicating with through an I²C interface. To follow the instructions provided in this document, you need an EdgeLock SE05x development board and a i.MX 8M MCU board, acting as a host controller.

EdgeLock SE05x development boards ordering details

The EdgeLock SE05x support package provides development boards for evaluating EdgeLock SE050 and EdgeLock SE051 features. Select the development board of the product you want to evaluate. Table 1 details the ordering details of the EdgeLock SE05x development boards.

Table 1. EdgeLock SE05x development boards.

Part number 12NC Description Picture

OM-SE050ARD 935383282598 SE050 Arduino

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EdgeLockTM SE05x Quick start guide with i.MX 8M

compatible development kit

OM-SE051ARD 935399187598 SE051 Arduino

compatible development kit

Note: The pictures in this guide will show OM-SE050ARD, but OM-SE051ARD can be used as well with the same configuration.

i.MX 8M MCU board ordering details

Table 2 details the ordering details for the i.MX 8M board.

Table 2. i.MX 8M development kit details

Part number 12NC Content Picture

MCIMX8M-EVK 935378743598 i.MX 8M evaluation kit

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3 Boards setup

This section explains how to prepare the OM-SE05xARD boards and i.MX 8M board to run the EdgeLock SE05x Plug & Trust middleware project examples. Follow these steps:

1. Connect the OM-SE05xARD to the i.MX 8M board. The i.MX 8M board does not

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come with an Arduino connector, so you have to connect the Arduino shield of the OM-SE05xARD board to the J801_I2C connector of the i.MX 8M board using wires.

Table 3 details the jumper connection

Table 3. Wire connection OM-SE05xARD - i.MX 8M

OM-SE05xARD (# jumper - # pin)

J2 - Pin 10 J801 - Pin 1 SCL

J2 - Pin 7 J801 - Pin 2 Ground

J2 - Pin 9 J801 - Pin 3 SDA

J8 - Pin 3 J801 - Pin 5 3.3 Volt supply

I.MX 8M (# jumper - # pin) Description

and Figure 1 illustrate the wiring between boards.

Figure 1. Connection between OM-SE05xARD and i.MX 8M boards

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2. Make sure the jumper settings in your OM-SE05xARD board are configured as shown

Note: For more information about the jumper settings, refer to AN12395 (OM- SE05xARD) and AN13016 (OM-SE051ARD) respectively.

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in Figure 2:

Figure 2. Jumper configuration for i.MX 8M board

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4 Software setup

The software setup consists of:

1. Preparing a micro-SD card with the pre-compiled Linux image with the preinstalled Plug & Trust middleware for i.MX 8M board, as described in Section 4.1.

2. Installing the USB to UART Bridge VCOM driver in your laptop, as described in

Section 4.2.

3. Installing TeraTerm terminal application, as described in Section 4.3.

4. Booting the i.MX 8M board, as described in Section 4.4.

4.1 Micro-SD card preparation

To prepare the micro-sd card with the pre-compiled Linux image that includes the Plug & Trust middleware, you need to:

1. Download from NXP website the Plug & Trust middleware SD Card Image. This image contains the Plug & Trust middleware pre-installed with already some examples on a bootable SD Card Image.

Note: In case the image provided by NXP does not suit your use case, you can find the explanation of how to create an card image using Yocto in the Plug & Trust middleware documentation (simw-top/doc/dev-platforms/platform_imx8_linux.html) .

2. Download and install Win32 Disk Imager software. Win32 Disk Imager is a Windows open source program to format SD card images. Instead of Win 32 Disk Imager, you could also use any other software for this operation.

3. Plug your micro-SD card in your laptop.

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4. Open Win32 Disk Imager, (1) select from your file system the pre-compiled Linux

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image you downloaded from the website, and (2) click on the Write button as shown in Figure 3.

Note: the SD card image might come in a ZIP package. Make sure to unzip the package and change the extension to .img before selecting the image file in Win32 Disk Imager.

Figure 3. Micro-SD card preparation with Win32 Disk Imager software

4.2 Drivers

To install the i.MX 8M drivers, follow these steps:

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1. Plug the power supply and connect the USB cable to your laptop as shown in

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Figure 4.

Figure 4. Plug the power supply and connect the USB cable to your laptop

2. Download the USB to UART Bridge VCOM driver for your processor (either 32 or 64 bits). Install the driver by following the setup wizard until it is finished.

3. Unplug and plug your board.

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4. Go to your Device Manager, and check that your board is recognized and assigned

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to a port number (COMxx). Write down the assigned port number (COMxx) as it is needed in the next steps. Your Device Manager should look like Figure 5.

Note: if you see more than one COM port, use the one denoted as Enhanced COM port.

Figure 5. Check that i.MX 8M board is recognized in Device Manager

4.3 Terminal setup

We need to install a terminal application, for instance TeraTerm, to communicate and view the serial output of the i.MX 8M board from our laptop. To setup TeraTerm application:

1. Download TeraTerm and run the installer.

2. Launch TeraTerm, click the Serial option and select from the dropdown list the Enhanced COM port number assigned to your i.MX 8M board (In this case COM11) as shown in Figure 6. Click the OK button to confirm the setup. If you cannot see the

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serial port of the board, your i.MX 8M board might not be recognized. In that case, please repeat the driver installation process described in Section 4.2.

Note: if you can't see the serial port in TeraTerm, make sure that the board is plugged in with the USB cable to the PC and restart TeraTerm.

Figure 6. Open a TeraTerm serial connection

3. Go to Setup → Serial Port and configure the terminal to 115200 Speed, 8 data bits, no parity and 1 stop bit as shown in Figure 7. Click on New Setting to confirm the

configuration.

Figure 7. Configure TeraTerm serial port connection

4.4 Booting the i.MX 8M

To boot the i.MX 8M, follow the steps shown in Figure 8 and Figure 9:

1. Insert the micro-SD card with the pre-compiled Linux image into the i.MX 8M card slot.

2. Configure the board switches as follows:

• SW801 (Boot Device Select Switch): ON, ON, OFF, OFF (from 1-4 bit)

• SW802 (Boot Mode Select Switch): ON, OFF (from 1-2 bit)

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3. Connect the board tot he power supply

4. Connect the board to your laptop using a USB cable and make sure that TeraTerm

5. Turn on the power supply switch to boot up the board.

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serial port is configured (see Section 4.3).

Figure 8. Booting the i.MX 8M

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6. During the boot process, the operating system status information will be displayed in

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TeraTerm as shown in Figure 9. When the process is complete, the user can login with the following credentials:

• Account name: root

• Password: not required

Figure 9. Sign in in the OS

Note: In the case that the precompiled Plug & Trust middleware version does not suit

your use case and a different version is needed, it must be downloaded and build into the device. For more information refer to Appendix B.

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5 Run preinstalled Plug & Trust middleware test examples

The Plug & Trust middleware comes with several test examples used to verify atomic EdgeLock SE05x security IC features. This section explains how to run the Plug & Trust middleware test example called se05x_Minimal.

1. After booting the board, you will be in the /usr/local/bin directory of the file system. To see the list of examples that are available in this directory use the following command: Send > ls -l /usr/local/bin. The TeraTerm window should be similar to Figure 10:

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Figure 10. Go to the Plug & Trust middleware test example directory

2. Execute the se05x_Minimal test example. This test example outputs the memory left in EdgeLock SE05x security IC. Send > se05x_Minimal. The TeraTerm logs should indicate the available memory in EdgeLock SE05x security IC as can be seen in Figure 11 (in this case, 20820).

Figure 11. Run se05x_minimal test example

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6 Appendix A: Using the ssscli tool

In Section 3 and Section 4 we have prepared the hardware setup and the software setups respectively. To validate that the whole process was done correctly and that your setup is fully operational, we are going to run the ssscli tool. This tool can be used to interact with the EdgeLock SE05x security IC without having to write any code.

To start the ssscli tool, send the commands shown in Figure 12:

1. Open the connection: Send: >ssscli connect se05x t1oi2c none

2. Send the reset command: Send: >ssscli se05x reset

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Figure 12. Start the ssscli tool

Note: If you see the following message: WARNING:sss.connect:Session already

open, close current session first as shown in Figure 13, it means that you have a session open. To close it, send: (1) > ssscli disconnect and then send once again (2) >ssscli connect se05x t1oi2c none and later (3) >ssscli se05x reset:

Figure 13. Close an already openned session

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3. The SE05x ssscli tool supports several operations. To check which commands are

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supported by the ssscli tool: (Figure 14) Send: > ssscli --help

Figure 14. ssscli info

4. Once you are done using the ssscli tool, close the session with the EdgeLock SE05x security IC: (Figure 15) Send: > ssscli disconnect

Figure 15. ssscli disconnect

The ssscli tool uses the installed sss library (/usr/local/lib/libsssapisw.so) for communication with the secure element. In order to be able to connect with ssscli to a specific interface type (e.g. T1oI2C or JRCP) or secure element type (A71CH or SE05x) the ssslibrary needs to be compiled and installed with this specific interface/ secure element type selected in the compilation options. This can be done by recompiling the Plug & Trust middleware as shown in the third step of the Appendix B

(Section 7.2) .

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7 Appendix B: Update Plug & Trust middleware

In this section it will be described the process needed for downloading, compiling and building a different Plug & Trust middleware version from the one preinstalled in the SD card image seen at Section 5.

7.1 Obtain the latest Plug & Trust middleware version

We need to compile the Plug & Trust middleware into the Linux software image we flashed before. Follow these steps:

1. Download latest version of the Plug & Trust middleware using this link.

2. Connect to the board using a terminal application such as TeraTerm and run the ifconfig command to determine the IP address of your board as shown in

Figure 16. We will use the board IP address to transfer the Plug & Trust middleware

using the SCP protocol.

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Figure 16. Obtain board IP address

3. Download and install a file transfer software supporting SCP such as WinSCP in case you are using a Windows host machine.

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4. Windows host: open WinSCP and configure the SCP connection as shown in

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Figure 17. The Host name corresponds to the IP address of the board obtained

previously. Click on the Login button to establish the connection.

Figure 17. Connect to the board using SCP with WinSCP

5. Once the connection is established, you should see on the right pane the board file system and, on the left pane the file system of the host machine. It is recommended to delete the folder named se05x_mw_vxxx in order to avoid confusion. Navigate to the folder where you downloaded the Plug & Trust middleware package and then drag

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and drop the package to the right pane as shown in Figure 18. A copy of the Plug & Trust middleware file should now be in the /home/root folder of the board.

Figure 18. Copy the middleware to the board

7.2 Build the Plug & Trust middleware

To build the Plug & Trust middleware, open the TeraTerm and follow the steps listed below:

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1. Unzip the Plug & Trust middleware file that you have transferred to the board in

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Section 7.1.

Send unzip <middleware_file_name>.zip as shown in Figure 19.

Figure 19. Unzip the middleware

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2. A new folder called simw-top should have been created in the root directory. You can

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now create the middleware CMake projects for the board as shown in Figure 20 : (1) Navigate to the simw-top/scripts folder. Send cd simw-top/scripts/. (2) Send the command python3 create_cmake_projects.py and wait until the command is finished executing.

Note: This command may take a few seconds to complete.

Figure 20. Create CMake projects for the board

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3. Finally, compile and install the project as shown in Figure 21:

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(1) Navigate to the folder where the project has been generated. Send cd ../simw-top_build/imx_native_se050_t1oi2c (2) Build the project. This might take some time. Send cmake --build .

Note: in the default CMake configuration the SCP03 protocol is not active. If you want to activate SCP, send cmake -DSE05X_Auth=PlatfSCP03 -DSCP=SCP03_SSS . before building the project with cmake --build .

(3) Install the project. Send make install

Figure 21. Build and install the project

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8 Legal information

8.1 Definitions

Draft — A draft status on a document indicates that the content is still

under internal review and subject to formal approval, which may result in modifications or additions. NXP Semiconductors does not give any representations or warranties as to the accuracy or completeness of information included in a draft version of a document and shall have no liability for the consequences of use of such information.

8.2 Disclaimers

Limited warranty and liability — Information in this document is believed

to be accurate and reliable. However, NXP Semiconductors does not give any representations or warranties, expressed or implied, as to the accuracy or completeness of such information and shall have no liability for the consequences of use of such information. NXP Semiconductors takes no responsibility for the content in this document if provided by an information source outside of NXP Semiconductors. In no event shall NXP Semiconductors be liable for any indirect, incidental, punitive, special or consequential damages (including - without limitation - lost profits, lost savings, business interruption, costs related to the removal or replacement of any products or rework charges) whether or not such damages are based on tort (including negligence), warranty, breach of contract or any other legal theory. Notwithstanding any damages that customer might incur for any reason whatsoever, NXP Semiconductors’ aggregate and cumulative liability towards customer for the products described herein shall be limited in accordance with the Terms and conditions of commercial sale of NXP Semiconductors.

Right to make changes — NXP Semiconductors reserves the right to make changes to information published in this document, including without limitation specifications and product descriptions, at any time and without notice. This document supersedes and replaces all information supplied prior to the publication hereof.

Suitability for use — NXP Semiconductors products are not designed, authorized or warranted to be suitable for use in life support, life-critical or safety-critical systems or equipment, nor in applications where failure or malfunction of an NXP Semiconductors product can reasonably be expected to result in personal injury, death or severe property or environmental damage. NXP Semiconductors and its suppliers accept no liability for inclusion and/or use of NXP Semiconductors products in such equipment or applications and therefore such inclusion and/or use is at the customer’s own risk.

Applications — Applications that are described herein for any of these products are for illustrative purposes only. NXP Semiconductors makes no representation or warranty that such applications will be suitable for the specified use without further testing or modification. Customers are responsible for the design and operation of their applications and products using NXP Semiconductors products, and NXP Semiconductors accepts no liability for any assistance with applications or customer product design. It is customer’s sole responsibility to determine whether the NXP Semiconductors product is suitable and fit for the customer’s applications and products planned, as well as for the planned application and use of customer’s third party customer(s). Customers should provide appropriate design and operating safeguards to minimize the risks associated with their applications and products. NXP Semiconductors does not accept any liability related to any default, damage, costs or problem which is based

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EdgeLockTM SE05x Quick start guide with i.MX 8M

on any weakness or default in the customer’s applications or products, or the application or use by customer’s third party customer(s). Customer is responsible for doing all necessary testing for the customer’s applications and products using NXP Semiconductors products in order to avoid a default of the applications and the products or of the application or use by customer’s third party customer(s). NXP does not accept any liability in this respect.

Export control — This document as well as the item(s) described herein may be subject to export control regulations. Export might require a prior authorization from competent authorities.

Evaluation products — This product is provided on an “as is” and “with all faults” basis for evaluation purposes only. NXP Semiconductors, its affiliates and their suppliers expressly disclaim all warranties, whether express, implied or statutory, including but not limited to the implied warranties of non-infringement, merchantability and fitness for a particular purpose. The entire risk as to the quality, or arising out of the use or performance, of this product remains with customer. In no event shall NXP Semiconductors, its affiliates or their suppliers be liable to customer for any special, indirect, consequential, punitive or incidental damages (including without limitation damages for loss of business, business interruption, loss of use, loss of data or information, and the like) arising out the use of or inability to use the product, whether or not based on tort (including negligence), strict liability, breach of contract, breach of warranty or any other theory, even if advised of the possibility of such damages. Notwithstanding any damages that customer might incur for any reason whatsoever (including without limitation, all damages referenced above and all direct or general damages), the entire liability of NXP Semiconductors, its affiliates and their suppliers and customer’s exclusive remedy for all of the foregoing shall be limited to actual damages incurred by customer based on reasonable reliance up to the greater of the amount actually paid by customer for the product or five dollars (US$5.00). The foregoing limitations, exclusions and disclaimers shall apply to the maximum extent permitted by applicable law, even if any remedy fails of its essential purpose.

Translations — A non-English (translated) version of a document is for reference only. The English version shall prevail in case of any discrepancy between the translated and English versions.

Security — Customer understands that all NXP products may be subject to unidentified or documented vulnerabilities. Customer is responsible for the design and operation of its applications and products throughout their lifecycles to reduce the effect of these vulnerabilities on customer’s applications and products. Customer’s responsibility also extends to other open and/or proprietary technologies supported by NXP products for use in customer’s applications. NXP accepts no liability for any vulnerability. Customer should regularly check security updates from NXP and follow up appropriately. Customer shall select products with security features that best meet rules, regulations, and standards of the intended application and make the ultimate design decisions regarding its products and is solely responsible for compliance with all legal, regulatory, and security related requirements concerning its products, regardless of any information or support that may be provided by NXP. NXP has a Product Security Incident Response Team (PSIRT) (reachable at PSIRT@nxp.com) that manages the investigation, reporting, and solution release to security vulnerabilities of NXP products.

8.3 Trademarks

Notice: All referenced brands, product names, service names and trademarks are the property of their respective owners.

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Tables

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Tab. 1. EdgeLock SE05x development boards. ............ 4

Tab. 2. i.MX 8M development kit details ....................... 4

Tab. 3. Wire connection OM-SE05xARD - i.MX 8M ...... 5

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Figures

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Fig. 1. Connection between OM-SE05xARD and

i.MX 8M boards .................................................5

Fig. 2. Jumper configuration for i.MX 8M board ........... 6

Fig. 3. Micro-SD card preparation with Win32 Disk

Imager software ................................................ 8

Fig. 4. Plug the power supply and connect the

USB cable to your laptop .................................. 9

Fig. 5. Check that i.MX 8M board is recognized in

Device Manager .............................................. 10

Fig. 6. Open a TeraTerm serial connection .................11

Fig. 7. Configure TeraTerm serial port connection ......11

Fig. 8. Booting the i.MX 8M ....................................... 12

Fig. 9. Sign in in the OS ............................................ 13

Fig. 10. Go to the Plug & Trust middleware test

example directory ............................................14

Fig. 11. Run se05x_minimal test example ................... 14

Fig. 12. Start the ssscli tool ..........................................15

Fig. 13. Close an already openned session ................. 15

Fig. 14. ssscli info .........................................................16

Fig. 15. ssscli disconnect ............................................. 16

Fig. 16. Obtain board IP address ................................. 17

Fig. 17. Connect to the board using SCP with

WinSCP ........................................................... 18

Fig. 18. Copy the middleware to the board .................. 19

Fig. 19. Unzip the middleware ......................................20

Fig. 20. Create CMake projects for the board .............. 21

Fig. 21. Build and install the project .............................22

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1 How to use this document ................................. 3

2 Hardware required .............................................. 4

3 Boards setup ....................................................... 5

4 Software setup .................................................... 7

4.1 Micro-SD card preparation ................................ 7

4.2 Drivers ................................................................8

4.3 Terminal setup ................................................. 10

4.4 Booting the i.MX 8M ........................................11

5 Run preinstalled Plug & Trust middleware

test examples .................................................... 14

6 Appendix A: Using the ssscli tool ...................15

7 Appendix B: Update Plug & Trust

middleware .........................................................17

7.1 Obtain the latest Plug & Trust middleware

version ............................................................. 17

7.2 Build the Plug & Trust middleware ...................19

8 Legal information ..............................................23

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Please be aware that important notices concerning this document and the product(s) described herein, have been included in section 'Legal information'.

For more information, please visit: http://www.nxp.com For sales office addresses, please send an email to: salesaddresses@nxp.com

Date of release: 7 December 2020

NXP AN13027 Application note

Specifications and Main Features

Frequently Asked Questions

User Manual

1 How to use this document

2 Hardware required

3 Boards setup

4 Software setup

4.1 Micro-SD card preparation

4.2 Drivers

4.3 Terminal setup

4.4 Booting the i.MX 8M

5 Run preinstalled Plug & Trust middleware test examples

6 Appendix A: Using the ssscli tool

7 Appendix B: Update Plug & Trust middleware

7.1 Obtain the latest Plug & Trust middleware version

7.2 Build the Plug & Trust middleware

8 Legal information

Tables

Figures

Contents