Microchip Technology MCP401XEV Manual de usuario

MCP401XEV

Evaluation Board

User’s Guide

Information contained in this publication regarding device

applications and the like is provided only for your convenience

and may be superseded by updates. It is your responsibility to

ensure that your application meets with your specifications.

MICROCHIP MAKES NO REPRESENTATIONS OR

WARRANTIES OF ANY KIND WHETHER EXPRESS OR

IMPLIED, WRITTEN OR ORAL, STATUTORY OR

OTHERWISE, RELATED TO THE INFORMATION,

INCLUDING BUT NOT LIMITED TO ITS CONDITION,

QUALITY, PERFORMANCE, MERCHANTABILITY OR

FITNESS FOR PURPOSE. Microchip disclaims all liability

arising from this information and its use. Use of Microchip

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the buyer’s risk, and the buyer agrees to defend, indemnify and

hold harmless Microchip from any and all damages, claims,

suits, or expenses resulting from such use. No licenses are

conveyed, implicitly or otherwise, under any Microchip

intellectual property rights.

Trademarks

The Microchip name and logo, the Microchip logo, dsPIC,

KEELOQ, KEELOQ logo, MPLAB, PIC, PICmicro, PICSTART,

rfPIC and UNI/O are registered trademarks of Microchip

Technology Incorporated in the U.S.A. and other countries.

FilterLab, Hampshire, HI-TECH C, Linear Active Thermistor,

MXDEV, MXLAB, SEEVAL and The Embedded Control

Solutions Company are registered trademarks of Microchip

Technology Incorporated in the U.S.A.

Analog-for-the-Digital Age, Application Maestro, CodeGuard,

dsPICDEM, dsPICDEM.net, dsPICworks, dsSPEAK, ECAN,

ECONOMONITOR, FanSense, HI-TIDE, In-Circuit Serial

Programming, ICSP, Mindi, MiWi, MPASM, MPLAB Certified

logo, MPLIB, MPLINK, mTouch, Octopus, Omniscient Code

Generation, PICC, PICC-18, PICDEM, PICDEM.net, PICkit,

PICtail, PIC32 logo, REAL ICE, rfLAB, Select Mode, Total

Endurance, TSHARC, UniWinDriver, WiperLock and ZENA

are trademarks of Microchip Technology Incorporated in the

U.S.A. and other countries.

SQTPisaservicemark of Microchip Technology Incorporated

in the U.S.A.

All other trademarks mentioned herein are property of their

respective companies.

Printed on recycled paper.

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

• Microchip products meet the specification contained in their particular Microchip Data Sheet.

• Microchip believes that its family of products is one of the most secure families of its kind on the market today, when used in the

intended manner and under normal conditions.

• There are dishonest and possibly illegal methods used to breach the code protection feature. All of these methods, to our

knowledge, require using the Microchip products in a manner outside the operating specifications contained in Microchip’s Data

Sheets. Most likely, the person doing so is engaged in theft of intellectual property.

• Microchip is willing to work with the customer who is concerned about the integrity of their code.

• Neither Microchip nor any other semiconductor manufacturer can guarantee the security of their code. Code protection does not

mean that we are guaranteeing the product as “unbreakable.”

Code protection is constantly evolving. We at Microchip are committed to continuously improving the code protection features of our

products. Attempts to break Microchip’s code protection feature may be a violation of the Digital Millennium Copyright Act. If such acts

allow unauthorized access to your software or other copyrighted work, you may have a right to sue for relief under that Act.

Microchip received ISO/TS-16949:2002 certification for its worldwide

headquarters, design and wafer fabrication facilities in Chandler and

Tempe, Arizona; Gresham, Oregon and design centers in California

and India. The Company’s quality system processes and procedures

are for its PIC®MCUs and dsPIC®DSCs, KEELOQ®code hopping

devices, Serial EEPROMs, microperipherals, nonvolatile memory and

analog products. In addition, Microchip’s quality system for the design

and manufacture of development systems is ISO 9001:2000 certified.

MCP401XEV EVALUATION BOARD

USER’S GUIDE

Table of Contents

Preface ...........................................................................................................................1

Chapter 1. Product Overview

1.1 Introduction .....................................................................................................5

1.2 What is the MCP401XEV Evaluation Board? .................................................5

1.3 What the MCP401XEV Evaluation Board Kit Includes ...................................6

Chapter 2. Installation and Operation

2.1 Introduction .....................................................................................................7

2.2 Features .........................................................................................................8

2.3 Getting Started ...............................................................................................9

2.4 MCP401XEV Evaluation Board Description ...................................................9

2.5 Configuring The PICkit Serial Analyzer ........................................................13

2.6 MCP40D18EV Demo Steps .........................................................................23

Appendix A. Schematic and Layouts

A.1 Introduction ..................................................................................................27

A.2 Schematics and PCB Layout .......................................................................27

A.3 Board - Schematic .......................................................................................28

A.4 Board - Top Trace, Silk and Pads ...............................................................29

A.5 Board - Bottom Trace & Pads ......................................................................30

A.6 Board - Layer 2 Ground Plane ....................................................................31

A.7 Board - Layer 3 Power Plane .......................................................................32

A.8 Board - Bottom Silk, Trace and Pads .........................................................33

Appendix B. Bill of Materials (BOM)

Worldwide Sales and Service ....................................................................................36

MCP401XEV Evaluation Board User’s Guide

NOTES:

MCP401XEV EVALUATION BOARD

USER’S GUIDE

Preface

INTRODUCTION

This chapter contains general information that will be useful to know before using the

MCP401XEV Evaluation Board. Items discussed in this chapter include:

• Document Layout

• Conventions Used in this Guide

• The Microchip Web Site

• Customer Support

• Document Revision History

DOCUMENT LAYOUT

This document describes how to use the MCP401XEV Evaluation Board as a

development tool to emulate and debug firmware on a target board. The manual layout

is as follows:

•Chapter 1. “Product Overview” – Important information about the MCP401XEV

Evaluation Board.

•Chapter 2. “Installation and Operation” – Includes instructions on how to get

started with this evaluation board.

•Appendix A. “Schematic and Layouts” – Shows the schematic and layout

diagrams for the MCP401XEV Evaluation Board.

•Appendix B. “Bill of Materials (BOM)” – Lists the parts used to build the

MCP401XEV Evaluation Board.

NOTICE TO CUSTOMERS

All documentation becomes dated, and this manual is no exception. Microchip tools and

documentation are constantly evolving to meet customer needs, so some actual dialogs

and/or tool descriptions may differ from those in this document. Please refer to our web site

(www.microchip.com) to obtain the latest documentation available.

Documents are identified with a “DS” number. This number is located on the bottom of each

page, in front of the page number. The numbering convention for the DS number is

“DSXXXXXA”, where “XXXXX” is the document number and “A” is the revision level of the

document.

For the most up-to-date information on development tools, see the MPLAB®IDE on-line help.

Select the Help menu, and then Topics to open a list of available on-line help files.

MCP401XEV Evaluation Board User’s Guide

CONVENTIONS USED IN THIS GUIDE

This manual uses the following documentation conventions:

DOCUMENTATION CONVENTIONS

Description Represents Examples

Arial font:

Italic characters Referenced books MPLAB®IDE User’s Guide

Emphasized text ...is the only compiler...

Initial caps A window the Output window

A dialog the Settings dialog

A menu selection select Enable Programmer

Quotes A field name in a window or

dialog “Save project before build”

Underlined, italic text with

right angle bracket A menu path File>Save

Bold characters A dialog button Click OK

A tab Click the Power tab

N‘Rnnnn A number in verilog format,

where N is the total number of

digits, R is the radix and n is a

digit.

4‘b0010, 2‘hF1

Text in angle brackets < > A key on the keyboard Press <Enter>, <F1>

Preface

RECOMMENDED READING

This user’s guide describes how to use the MCP401XEV Evaluation Board. Other

useful documents are listed below. The following Microchip documents are available

and recommended as supplemental reference resources.

AN1080 Application Note, “Understanding Digital Potentiometer Resistor

Variations”, DS01080

These data sheets provide detailed information regarding the MCP401X and

MCP40D1X product families:

MCP4017/18/19 Data Sheet, “7-bit Single I2C Digital POT with Volatile Memory in

SC70”, DS22147

MCP40D17/18/19 Data Sheet, “7-bit Single I2C (with Command Code) Digital POT

with Volatile Memory in SC70”, DS22152

THE MICROCHIP WEB SITE

Microchip provides online support via our web site at www.microchip.com. This web

site is used as a means to make files and information easily available to customers.

Accessible by using your favorite Internet browser, the web site contains the following

information:

•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

•General Technical Support – Frequently Asked Questions (FAQs), technical

support requests, online discussion groups, Microchip consultant program

member listing

•Business of Microchip – Product selector and ordering guides, latest Microchip

press releases, listing of seminars and events, listings of Microchip sales offices,

distributors and factory representatives

CUSTOMER SUPPORT

Users of Microchip products can receive assistance through several channels:

• Distributor or Representative

• Local Sales Office

• Field Application Engineer (FAE)

• Technical Support

• Development Systems Information Line

Customers should contact their distributor, representative or field application engineer

(FAE) for support. Local sales offices are also available to help customers. A listing of

sales offices and locations is included in the back of this document.

Technical support is available through the web site at: http://support.microchip.com

In addition, there is a Development Systems Information Line which lists the latest

versions of Microchip's development systems software products. This line also

provides information on how customers can receive currently available upgrade kits.

The Development Systems Information Line numbers are:

1-800-755-2345 – United States and most of Canada

1-480-792-7302 – Other International Locations

MCP401XEV Evaluation Board User’s Guide

DOCUMENT REVISION HISTORY

Revision A (January 2010)

• Initial Release of this Document.

MCP401XEV EVALUATION BOARD

USER’S GUIDE

Chapter 1. Product Overview

1.1 INTRODUCTION

This chapter provides an overview of the MCP401XEV Evaluation Board and covers

the following topics:

• What is the MCP401XEV Evaluation Board?

• What the MCP401XEV Evaluation Board kit includes

1.2 WHAT IS THE MCP401XEV EVALUATION BOARD?

The MCP401XEV Evaluation Board allows the system designer to quickly evaluate the

operation of Microchip Technology’s MCP40D18 Digital Potentiometer device. This

device is similar to the following devices:

•MCP40D17

•MCP40D19

• MCP4017

• MCP4018

• MCP4019

TheboardusestheSC70EVGenericPCBandhasbeenpopulatedfortheMCP40D18.

The 6-pin header (PICkit Serial) has been jumpered to the MCP40D18’s appropriate

pins. This allows the PICkit Serial to communicate with the device.

Additional blank PCBs may be ordered by using the order number: SC70EV. Each

SC70EV kit contains 5 PCBs.

Figure 1-1 shows the top view of the PCB.

MCP401XEV Evaluation Board User’s Guide

FIGURE 1-1: MCP401XEV Evaluation Board Using the SC70EV Evaluation Board (MCP40D18

installed in U1).

1.3 WHAT THE MCP401XEV EVALUATION BOARD KIT INCLUDES

This MCP401XEV Evaluation Board kit includes:

• MCP401XEV Evaluation Board

• One SC70EV Blank PCB, 102-00273.

Extra blank PCBs can be ordered (order #: SC70EV)

• Important Information Sheet

0 Ω

MCP

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