MICROCHIP TA100 24 Pad VQFN Socket Board User Guide

MICROCHIP TA100 24 Pad VQFN Socket Board

Introduction

The TA100 24-Pad VQFN mikroBUS™-compatible socket board was developed for use with any of Microchip’s microcontroller boards that support a MikroElektronika mikroBUS interface. The board’s dimensions match the medium-sized add-on board as defined in the mikroBUS specification. Through use of an adapter board, the socket board can also be used with Microchip microcontroller development boards that support an Xplained Pro Interface.
The TA100 secure elements are one-time-programmable devices. Having a socket board allows for a customer to reuse the board with multiple TA100 sample devices for a given application or for multiple different applications. The 24-Pad VQFN socket board and TA100 secure element support both an I2C and SPI Interface.

Figure 1. TA100 24-Pad VQFN Socket Board

Hardware Description

Schematic and Key Features

• One 24-Pad VQFN Socket (U1)
• One mikroBUS Connector (J1, J2)
• On-Board 4.7 kΩ I2C Resistors (R2, R3)
• On-Board LED Power Indicator (LD1)
• Power Jumper for selecting 3.3V or 5V power (J3)
• Jumper for selecting which mikroBUS pin is connected to GPIO1 (J5)
• Optional GPIO Header (J4) – Not Populated
• Optional SPI Pull-up resistors R4-R7 – Not Populated
• Optional GPIO Pull-up resistors R9-R11 – Not Populated

Board Configuration
TA100 24-Pad VQFN Socket Board Jumper Configurations

• 3.3V Power: J3 with shunt across 3V3 and PWR positions
• 5.0V Power: J3 with shunt across 5V and PWR positions
• GPIO1 Connected to IO1A: J5 with Shunt across GPIO1 and IO1A
• GPIO1 Connected to IO1B: J5 with Shunt across GPIO1 and IO1B

Supply Current Measurement
The current consumption of the TA100 device can be measured by using the EV39Y17A 24-Pad VQFN socket board. The only devices on the board that will consume power are the TA100 socketed device, the Power LED and the I2C pull-up resistors. Follow these steps to measure the current:

1. Modify the board to remove the resistor, R1, which is in series with the LED. This will remove the current through the LED from the total measured current.(1)
2. Install the TA100 device into the socket.
3. Install the socket board into the host system with the appropriate power settings.
4. Select either 3.3V or 5V power for the measurement.(2)
5. Connect the high side of the ammeter to the 3.3V or 5V supply.
6. Connect the low side of the ammeter to the common PWR signal of the header.
7. Current measurements can now be taken by running various TA100 commands and measuring the current. (3)

Notes:

1. For lower accuracy current measurements, this resistor may be kept in the circuit. It is recommended that a separate measurement of the current through just the LED path be made prior to measuring the TA100 device currents. This value can, then, be subtracted from the total current measured.
2. The host board provides power to the mikroBUS extension board, so whichever supply is selected must match the capabilities and setting used on the host board.
3. When measuring the current of I2C devices, the measurement will include the I2C pull-up currents used to pull up the bus. For SPI signals, the pull-ups are internal to the device and will also factor into the total current consumed.

Hardware Documentation
Additional documentation for the kit can be found on the Microchip website for the EV39Y17A.

This includes:

• Board Design Documentation including Schematics and 3D Views
• Gerber Files
• TA100 24-Pad VQFN Socket Board User Guide (EV39Y17A)

For other kits referenced in this document, check the website information associated with those kits. This includes:

• ATSAMV71-XULT SAMV71 Xplained Ultra Evaluation Kit
• ATMBUSADAPTER-XPRO XPRO to mikroBUS Adapter
• Explorer 16/32 Development Kit (DM240001-2)
• dsPIC33CK 16-Bit PIC® Microcontroller

Related Hardware Kits
Microchip also offers related socket kits for the other packages that the TA100 device is provided in. These include:

• The AC164166 14-Pin SOIC Socket Kit for the TA100 – This developer’s kit supports a 14-pin SOIC TA100 device with both an SPI and I2C Interface
• The AC164167 8-Pin SOIC Socket Kit for the TA100 – This developer’s kit supports an 8-pin SOIC TA100 device with either an SPI or I2C Interface

Connecting the Board

The form factor of the EV39Y17A development board was chosen because Microchip has heavily adopted the use of the mikroBUS connector on host boards. Many of Microchip’s development platforms will support one or more mikroBUS interfaces. These include:

• Microchip Explorer 16/32 Development Board
• MPLAB® Xpress Evaluation Board
• Automotive Networking Development Board
• PIC® Curiosity Boards
• PIC Curiosity Nano Boards
• AVR® Curiosity Nano Boards
• SAM Xplained-Pro microcontroller development boards when used with an ATMBusAdapter

Xplained Pro Connections
By using an adapter board, the EV39Y17A development board can still be used with Microchip development boards that only support the Xplained Pro interface. Figure 2-1 shows the full assembly of the , the ATMBUSADAPTER-XPRO and an ATSAMV71-XULT Development Board.

Figure 2-1. Connections to an Xplained Pro Development Platform

1. EV39Y17A 24-Pad VQFN Socket Board
2. ATMBUSADAPTER-XPRO
3. ATSAMV71-XULT Development Board
4. TARGET USB Port
5. DEBUG USB Port
6. External Power Jack Input

Powering the SAMV71-XULT Board
Multiple options exist for powering the SAMV71-XULT Development Board. Depending on the total current requirements, different options are allowed. See the SAMV71-XULT User Guide for more information.

• External Power Jack Input
  • 2.1 mm barrel connector
  • 5-14V input supply Maximum current of 2.0A
  • 12V 18W Power Adapter Option: Triad Magnetics WSU120-1500
• Embedded Debugger USB Connection; max. of 500 mA
• Target USB Connection; max. of 500 mA
• External Power Header
  • 2-pin 100 mil Header
  • Direct 5V Supply
  • Max. 2A of current

ATMBUSAdapter Power Settings
The ATMBUSAdapter allows power to be connected to the MikroBus Host adapter either directly through the XPRO interface or by providing external power through the EXT header. It is important that all jumpers are connected correctly before connecting to the SAMV71-XULT or other boards with an XPRO interface to prevent possible damage to the system.

1. Option 1: Direct Power from the XPRO Extension
   • Determine if the XPRO Board outputs a 3.3V or 5.0V supply voltage.
   • Connect the J3 shunt “C”of the EV39Y17A to the appropriate 3.3V or 5.0V supply.
   • Connect the ATMBUSAdapter power shunt “A” to the same voltage as the XPRO supply.
2. Option 2: External Power Connected to the ATMBUSAdapter.
   • Remove the Power Shunt “A” from the ATMBUSAdapter. This disconnects power from the XPRO Header.
   • Connect either 3.3V or 5.0V external power to the Ext Header “B” on the ATMBUSAdapter
   • Make sure the J3 shunt on the EV39Y17A is placed across the correct connections for the External Power Supply chosen.

Additional Resources

• SAMV71 Kit Information
• SAMV71 Xplained Ultra User Guide
• SAMV71 Microcontroller
• Additional Tools available via myMicrochip

Microchip Explorer 16/32 Connections
The EV39Y17A extension board can be connected to any microcontroller board that contains a mikroBUS Host Header. The 24-Pad VQFN socket board contains both the I2C and the SPI interface as shown in 1.2 Board Configuration. The diagram below shows a configuration using the Microchip Explorer 16/32 Development Board and the dsPIC33CK 16-bit microcontroller. Note that the Explorer 16/32 board allows for a variety of 100-pin Microchip microcontrollers to be used.

Figure 2-3. Connections to a Microchip Explorer 16/32 Development Board

1. EV39Y17A 24-Pad VQFN Socket Board
2. dsPIC33CK 16-Bit Microcontroller
3. Microchip Explorer 16/32 Bit development Board
4. External Power Connection
5. Micro-USB Connection
6. Type-A USB Connection
7. USB Type-C™ Connection
8. PICkit™ On-Board debugger micro-USB Connection

Powering the Board
Multiple options exist for powering the Explorer 16/32 Development board. Depending on the total current requirements, different options are allowed.

• External Power Supply Connection
  • 8-15V Power Supply maximum current 1.3A
  • Universal 9V Supply Adapter: AC002014
• USB Connections allow up to 400 mA

Additional Resources

• Microchip Explorer 16/32 Kit Information
• Microchip Explore16/32 User Guide
• dsPIC33CK
• Additional software tools available via myMICROCHIP

Automotive Networking Development Board Connections
The EV39Y17A extension board can be connected to any microcontroller board that contains a mikroBUS Host Header. The 24-Pad VQFN socket board contains both the I2C and the SPI interface as shown in 1.2 Board Configuration. The diagram below shows the Automotive Networking Development Board. This board is a low-cost modular development system for Microchip’s 8-bit, 16-bit and 32-bit microcontrollers targeting CAN and LIN network-related applications.

Due to the modular nature of the Automotive Networking Development Board, only a generic photo of the board is shown below. There are multiple LIN and CAN Controllers that can be connected through the mikroBUS connectors along with the EV39Y17A socket security board. Each of these devices can be connected via any of the mikroBUS headers. A 100-pin plug-in microcontroller module (PIM) is also required for complete system operation. Microchip has a variety of PIM modules that can be used with this development board. Examples of mikroBUS click boards and PIM modules are shown in the Additional Resources section.

Figure 2-4. Connections to the Automotive Networking Development Board

1. Automotive Networking Development Board
2. mikroBUS™ Host headers
3. Microcontroller PIM Socket
4. External Power Connection
5. Micro-USB Power/Signal Connection

Powering the Board
Multiple options exist for powering the Automotive Networking Development Board.

• External Power Supply Connection (7-30V)
  • 9V external power supply adapter: (AC002014) 1.3A current
  • 5 mm output jack with center-positive connection
  • Place jumper across pins 2-3 of header J28 to enable
• USB Connections
  • Micro-USB connection
  • Place jumper across pins 1-2 of header J28 to enable

Additional Resources
The following list provides examples of different resources available and is not exhaustive. To identify additional PIM or mikroBUS modules that may work with the Automotive Networking Development Board, go to www.microchip.com.

• Automotive Networking Development Board Kit Information
• Automotive Networking Development Board User’s Guide
• MCP2003B click for LIN systems
• MCP25625 click with Microchip CAN controller
• ATA6563 click with Microchip CAN controller
• PIC18F66K80 100-pin PIM
• Additional software tools available via myMicrochip

Software Tools

The TA100 is supported by a suite of software tools. These tools are only available under NDA. Contact Microchip to obtain an NDA and request access to the tools. Once an NDA is signed, these tools are made available in the My Secure Software section of the customer’s myMicrochip account. Enhancements, upgrades and additional tools are automatically made available to any customer that is enabled for the TA100 support.

Table 3-1. TA100 Software Tools

1

| TA100 Configurator GUI and TA100

Library

| The TA100 Configurator GUI provides the ability to configure and pseudo- provision TA100 devices, and to illustrate how the TA100 can be used for various applications such as Secure Boot, Device Authentication and CAN-MAC. These applications perform many cryptographic operations using the TA100 library.

2

| ****

CryptoAuthLib

| A flexible library implemented with a Hardware Abstraction Layer (HAL) that allows the TA100 to be readily ported to other microcontrollers. The library provides commands support for the TA100 and other Microchip CryptoAuthentication™ devices significantly speeding up application development.

3

| ****

AUTOSAR™ 4.3.1

CRYPTO driver(1)

| CRYPTO driver specifications provide an abstraction layer to integrate an external cryptographic device, such as the TA100, into the AUTOSAR™ stack. This

allows for code to be portable between various applications that use different microcontrollers.

Important:

For projects that use the AUTOSAR Driver, the AUTOSAR™ Reference Stack is also needed.
AUTOSAR™ is an open and standardized automotive software architecture. The TA100 is integrated into 3rd party AUTOSAR™ software stacks to aid customers in the implementation of automotive applications. Contact Microchip for a list of 3rd Party AUTOSAR™ stack vendors that support the TA100.

Use Case Examples
Use Case examples use the TA100 Configurator GUI to demonstrate various sample applications that can be implemented using the TA100 and SAM V71 microcontroller. These sample applications come with the necessary microcontroller firmware, detailed application user guide and other documentation describing the use case in more detail. Table 3-2 provides some of the use case examples that are available from the myMicrochip website. Upgrades to these use case examples and additional use case examples will be provided over time via the same path.

Table 3-2. Use Case Examples

1

| ****

Device Authentication

| Provides device authentication by verifying the chain of trust using Signer and Device Certificates and a Random Challenge. Upon successful authentication, a known string is encrypted and written to a data element or read and decrypted from a data element inside the TA100.
2| Full Stored Secure Boot with Pre-Boot| Secure Boot use case that, upon initial boot, calculates the digest of the firmware code and, then, stores it for faster subsequent secure boots.
3| CAN Bootloader| Secure Boot use case that allows for a secure firmware upgrade via the CAN Bus using the SAMV71 microcontroller, K2L MOCCA-FD tool and PC-based GUI.

4

| ****

CAN-MAC

Authentication

| This use case demonstrates a mechanism to add an AES C-MAC to authenticate CAN-FD messages. This mechanism can be used to ensure data integrity and authenticity of the transmit node. TA-configurator GUI will import a CAN- database file to populate the CAN-MAC tab of the GUI. The user can use the TA- configurator GUI to select which messages need authentication, assign C-MAC keys and to configure message payload structure.
---|---|---

Note:

1. The listed use case examples are based on the TA100Lib and TA Configurator GUI.

myMicrochip
Microchip provides the ability to customize your user experience and keep you up to date on key topics that are of the most relevance and importance to you by registering for a myMicrochip account. To have access to many of the TA100 software tools, you must have an account. These tools are accessed by enabling Secure Document Access. Having access will automatically give you access to tool updates and new tools as they are added.

Accessing myMicrochip

1. Go to the myMicrochip website: www.microchip.com/mymicrochip.
2. If you do not have an account, click the “Register for an account” link, fill out the information, then save your profile.
3. Once you are fully registered, you can log in through the access page in step 1.
4. After you log in, go to My Preferences and enable Secure Documents Access. You can also set other preferences at this time.
5. After you set your preferences, go to the bottom of the page and make sure you click Save Preferences.
6. To gain access to these files, you will need an NDA. If you do not yet have an NDA, work with your Microchip sales representative to obtain an NDA.
7. Once you have the NDA, follow the directions on the website or send an email with the signed version of the NDA along with a request to access the software packages to securefiles@microchip.com. This document will be forwarded to the appropriate administrators of the group. Once your name is added, you will receive an email notifying you of the availability of the software.

Personal myMicrochip Page
Once you log in to your myMicrochip account, your dashboard page will display similar to Figure 3-2. Under the Products tab is a listing of all your secure documents, software, etc. Clicking on the various links and setting up your preferences provides you with customized access to everything within Microchip that is relevant to you.

Figure 3-2. myMicrochip Dashboard

Revision History

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• Product Support – Data sheets and errata, application notes and sample programs, design resources, user’s guides and hardware support documents, latest software releases and archived software
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To register, go to www.microchip.com/pcn and follow the registration instructions.

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Users of Microchip products can receive assistance through several channels:

• Distributor or Representative
• Local Sales Office
• Embedded Solutions Engineer (ESE)
• Technical Support

Customers should contact their distributor, representative or ESE for support. Local sales offices are also available to help customers. A listing of sales offices and locations is included in this document.
Technical support is available through the website at: www.microchip.com/support

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Note the following details of the code protection feature on Microchip products:

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