Cypress Semiconductor FX2LP Datový list stáhnout pdf

www.cypress.com Document No. 001-76348 Rev. ** 1

AN76348

Migrating from EZ-USB

FX2LP™ Based Design to EZ-USB FX3 Based

Design

Author: Rama Sai Krishna V

Associated Project: No

Associated Part Family: CYUSB3014

Software Version: None

Related Application Notes: For a complete list of the application notes, click here.

If you have a question, or need help with this application note, contact the author at

rskv@cypress.com

Abstract

AN76348 tells you how to modify the top-level application to migrate an EZ-USB

design based on FX2LP™ to one

based on FX3™. This application note highlights the differences between FX3 and FX2LP in architecture, hardware

level, and firmware framework using a bulkloop example.

Contents

Introduction ....................................................................... 2

Architectural Differences ................................................... 2

Serial Interfaces ................................................................ 2

GPIF versus GPIF II .......................................................... 2

Differences in Hardware Level .......................................... 3

Booting Options ............................................................ 3

Crystal / Clock .............................................................. 3

Power Supply Configurations and Decoupling

Capacitance ................................................................. 3

Differences in Software Level ............................................ 4

Development Tools ...................................................... 4

Applications in PC ........................................................ 4

FX2LP and FX3 Firmware Framework .............................. 4

BulkLoop Example on FX2LP ........................................... 4

Programmer’s View of FX3 ............................................... 5

FX3 Firmware Stack .......................................................... 6

Firmware Framework.................................................... 6

Firmware API Library .................................................... 6

Embedded Real Time OS............................................. 6

BulkLoop Example on FX3 ................................................ 6

Tool Chain Initialization ................................................ 7

Device Initialization ....................................................... 7

Application Definition .................................................... 8

Application Code .......................................................... 8

Application Thread ....................................................... 9

Debug Initialization ....................................................... 9

Application Initialization .............................................. 10

Available Collateral ......................................................... 11

1 2 3 4 5 6 ... 12 13

Shrnutí obsahu

Strany 1 - Migrating from EZ-USB

www.cypress.com Document No. 001-76348 Rev. ** 1 AN76348 Migrating from EZ-USB® FX2LP™ Based Design to EZ-USB FX3 Based Design Author: Rama Sai K

Strany 2 - Introduction

Migrating from EZ-USB® FX2LP™ Based Design to EZ-USB FX3 Based Design www.cypress.com Document No. 001-76348 Rev. ** 10 Application Initiali

Strany 3 - Decoupling Capacitance

Migrating from EZ-USB® FX2LP™ Based Design to EZ-USB FX3 Based Design www.cypress.com Document No. 001-76348 Rev. ** 11 CyFx

Strany 4 - BulkLoop Example on FX2LP

Migrating from EZ-USB® FX2LP™ Based Design to EZ-USB FX3 Based Design www.cypress.com Document No. 001-76348 Rev. ** 12 Document History Do

Strany 5 - Programmer’s View of FX3

Migrating from EZ-USB® FX2LP™ Based Design to EZ-USB FX3 Based Design www.cypress.com Document No. 001-76348 Rev. ** 13 Products Automotive

Strany 6 - BulkLoop Example on FX3

Migrating from EZ-USB® FX2LP™ Based Design to EZ-USB FX3 Based Design www.cypress.com Document No. 001-76348 Rev. ** 2 Introduction Cypress

Strany 7 - Device Initialization

Migrating from EZ-USB® FX2LP™ Based Design to EZ-USB FX3 Based Design www.cypress.com Document No. 001-76348 Rev. ** 3 Differences in Hardwa

Strany 8 - Application Code

Migrating from EZ-USB® FX2LP™ Based Design to EZ-USB FX3 Based Design www.cypress.com Document No. 001-76348 Rev. ** 4 In the case of FX2LP,

Strany 9 - Debug Initialization

Migrating from EZ-USB® FX2LP™ Based Design to EZ-USB FX3 Based Design www.cypress.com Document No. 001-76348 Rev. ** 5 and you can read the

Strany 10 - Application Initialization

Migrating from EZ-USB® FX2LP™ Based Design to EZ-USB FX3 Based Design www.cypress.com Document No. 001-76348 Rev. ** 6 FX3 Firmware Stack Po

Strany 11 - About the Author

Migrating from EZ-USB® FX2LP™ Based Design to EZ-USB FX3 Based Design www.cypress.com Document No. 001-76348 Rev. ** 7 The firmware entry fu

Strany 12 - Document History

Migrating from EZ-USB® FX2LP™ Based Design to EZ-USB FX3 Based Design www.cypress.com Document No. 001-76348 Rev. ** 8 CyU3PDeviceConfigureI

Strany 13 - Solutions

Migrating from EZ-USB® FX2LP™ Based Design to EZ-USB FX3 Based Design www.cypress.com Document No. 001-76348 Rev. ** 9 /* Consumer endpo

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