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AT97SC3205T SDK2-

AT97SC3205P SDK2-

Atmel ITPM 2C/SPI Development Kit

USER GUIDE

Atmel I2C/SPI Demonstration K it

Introduction

The Atmel® TPM™ Development Kit includes examples of how to use the Trusted Platform Module

(TPM) in an embedded and PC application. Source code is provided to enable an embedded designer to

make quick progress in understanding and utilizing the TPM.

The TPM Development Kits are based on the Atmel SAM4S ARM ® with an added I2C or SPI TPM

device. The TPM demonstration code and evaluation software uded on a USB flash drive which are incl

comes with the kits. The board includes a or ISPI 2C TPM, a SAMS4 processor, a board reset button, a

JTAG connector, and detachable segments to allow for engineering system integration as shown in

Figure 1.

Complete SAM4S ARM documentation can be found on the Atmel web site at the following link:

http://www.atmel.com/Images/Atmel_11100_32 Cortex M4 Microcontroller_SAM4S_Datasheet.pdf- -bit - -

This TPM Development Kit User Guide documents the features specific to the TPM and references the

SAM4S ARM documentation where appropriate.

Atmel- - - - - - -8528D TPM I2C SPI Development Kit UserGuide_0 20145

AT97SC3205T/3205P-SDK2 TPM I2C/SPI Development i [Kit USER GUIDE]

Atmel- - - - -8528D TPM I2C SPI Development UserGuide_0 2014- -Kit 5

Features

The TPM kit is a custom board containing an I2C TPM or SPI TPM and related circuitry connected to the

SAM4S ARM board. Interface signals on the board are:

• Power

• Ground

• PIRQ

• Chip Select (CS)

• MISO

• SDA

• SCL

• SCLK

• MOSI

• RST

• GND

• VCC

The following functional sections are provided on the Embedded TPM : kit

• AT97SC3205 I2C or SPI Atmel TPM

• TPM Reset Switch

• RC Reset Delay

• Decoupling Capacitors

• Pull- - Up and Pull Down Resistors

• Test Points

USB Drive

The included USB drive includes the following:

• User Guide

• Source Code Demoof the

• Hex Images for Reloading the Demo (If Necessary)

• Kit Schematics

Figure 1. Atmel I2C/SPI Demonstration Kit

JTAG ConnectorSAMS4 ARM Reset Button TPM

Mini JTAG Connector

Detachable Segments

AT97SC3205T/3205P-SDK2 TPM I2C/SPI Development i [Kit USER GUIDE]

Atmel- - - - -8528D TPM I2C SPI Development UserGuide_0 2014- -Kit 5

Table of Contents

TPM Overview ..................................................................................................................... 4

Power ............................................................................................................................................................. 4

Reset Button .................................................................................................................................................. 4

In ................................................................................................................................- System Programming 4

Debugging ...................................................................................................................................................... 4

Demonstration Software .................................................................................................... 5

Initial One Time Setup- ................................................................................................................................... 6

Demo Menu Commands ................................................................................................................................ 6

Selection 1 - TPM_Startup (ST_CLEAR) .............................................................................................. 6

Selection 2 - TPM_ContinueSelfTest .................................................................................................... 7

Selection 3 - reateEKPair TPM_C .......................................................................................................... 7

Selection 4 TPM_TakeOwnerShip (Sequence)- .................................................................................. 7

Selection 5 TPM_CreateWrapKey (Sequence)- ................................................................................... 8

Selection 6 TPM_Loadkey (Sequence)- 8..............................................................................................

Selection 7 TPM_Seal (Sequence)- ..................................................................................................... 9

Selection a TPM_UnSeal (Sequence)- .............................................................................................. 10

Selection b PM_Sign (Sequence)- T ................................................................................................... 10

Selection c TPM_VerifySign (Sequence)- .......................................................................................... 11

Selection d TPM_GetPubKey (Sequence)- ........................................................................................ 11

Selection t - getCapability_versionVal ................................................................................................. 12

Selection u TPM_Reset (Clears authSessions)- ................................................................................ 12

Selection v TPM_FlushSpecific (keyHandle)- .................................................................................... 12

Selection w TPM_ForceClear (Sequence)- ........................................................................................ 12

Selection x Enable/Activate TPM (Sequence)- .................................................................................. 13

Selection y Disable/Deactivate TPM (Sequence)- .............................................................................13

Selection z Display Known Keys- ....................................................................................................... 13

Technical Support ............................................................................................................ 13

Hardware Reference Design ............................................................................................ 13

Schematics ..................................................................................................................................................13