Microchip Technology PICDEM Touch Sense 2 Bedienungsanleitung

PICDEM™ Touch Sense 2

Demo Board User’s Guide

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Programming, ICSP, ICEPIC, Mindi, MiWi, MPASM, MPLAB

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PICDEM™ TOUCH SENSE 2 DEMO

BOARD USER’S GUIDE

Table of Contents

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

Chapter 1. Introduction to the Demo Board

1.1 Overview ........................................................................................................ 7

1.2 Operational Requirements .............................................................................7

1.3 Initial Board Setup .......................................................................................... 8

Chapter 2. The Demonstration Application

2.1 Introduction to the Touch Interface ...............................................................11

2.2 Individual Touch Sense Demonstrations ......................................................12

Chapter 3. Using the mTouch™ Sensing Solution

3.1 About the mTouch Sensing Solution ............................................................ 13

3.2 Using the mTouch Sensing Solution ............................................................ 13

Chapter 4. Demo Board Hardware

4.1 Application Functional Overview ..................................................................19

4.2 Board Components ...................................................................................... 21

Chapter 5. Troubleshooting

5.1 Highlights ...................................................................................................... 23

5.2 Common Issues ........................................................................................... 23

Appendix A. Demo Board Schematics.......................................................................25

Index .............................................................................................................................29

Worldwide Sales and Service ....................................................................................30

PICDEM Touch Sense 2 Demo Board User’s Guide

NOTES:

PICDEM™ TOUCH SENSE 2 DEMO

BOARD USER’S GUIDE

Preface

INTRODUCTION

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

PICDEM Touch Sense 2 Demo Board. Items discussed in this chapter include:

• Document Layout

• Conventions Used in this Guide

• Warranty Registration

• Recommended Reading

• The Microchip Web Site

• Development Systems Customer Change Notification Service

• Customer Support

• Document Revision History

DOCUMENT LAYOUT

Thisdocumentdescribes howto use theTouch Sense 2 Demo Board as adevelopment

and demonstrative tool for PIC24F MCU device capabilities and features. The manual

layout is as follows:

• Chapter 1. Introduction to the Demo Board – This chapter introduces the

Touch Sense 2 Demo Board and provides an overview of its features.

•Chapter 2. The Demonstration Application – This chapter describes the

preprogrammed capacitive touch sense demo application.

•Chapter 3. Using the mTouch™ Sensing Solution – This chapter describes the

diagnostic software and how to use it with the Touch Sense 2 Demo Board.

•Chapter 4. Demo Board Hardware – This chapter provides a functional overview

of the Touch Sense 2 Demo Board and identifies the major hardware components.

•Chapter 5. Troubleshooting – This chapter provides troubleshooting tips for

commonly encountered issues.

•Appendix A. Demo Board Schematics – This appendix provides detailed

schematic diagrams of the demo 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 online help.

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

PICDEM Touch Sense 2 Demo Board User’s Guide

CONVENTIONS USED IN THIS GUIDE

This manual uses the following documentation conventions:

WARRANTY REGISTRATION

Please complete the enclosed Warranty Registration Card and mail it promptly.

Sending in the Warranty Registration Card entitles you to receive new product updates.

Interim software releases are available at the Microchip web site.

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

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

Courier New font:

Plain Courier New Sample source code #define START

Filenames autoexec.bat

File paths c:\mcc18\h

Keywords _asm, _endasm, static

Command-line options -Opa+, -Opa-

Bit values 0, 1

Constants 0xFF, ‘A’

Italic Courier New A variable argument file.o, where file can be

any valid filename

Square brackets [ ] Optional arguments mcc18 [options] file

[options]

Curly brackets and pipe

character: { | } Choice of mutually exclusive

arguments; an OR selection errorlevel {0|1}

Ellipses... Replaces repeated text var_name [, var_name...]

Represents code supplied by

user void main (void)

{ ...

}

Preface

RECOMMENDED READING

This user’s guide describes how to use the PICDEM Touch Sense 2 Demo Board.

Other useful documents are listed below. The following Microchip documents are avail-

able and recommended as supplemental reference resources.

Readme Files

For the latest information on using other tools, read the tool-specific Readme files in

the Readmes subdirectory of the MPLAB®IDE installation directory. The Readme files

contain update information and known issues that may not be included in this user’s

guide.

PIC24F Family Reference Manual

This reference manual explains the operation of the PIC24F microcontroller family

architecture and peripheral modules. The specifics of each device family are discussed

in the individual family’s device data sheet. Users are specifically directed to

Section 11. “Charge Time Measurement Unit (CTMU)” (available individually as

DS39724) for a detailed discussion of this module, which is at the heart of the

capacitive touch sense demonstration.

This useful manual is on-line in sections at the Technical Documentation section of the

Microchip web site. Refer to these for detailed information on PIC24F device operation.

Device Data Sheets and Flash Programming Specifications

Refer to the appropriate device data sheet for device-specific information and

specifications. Also, refer to the appropriate device Flash Programming Specification

for information on instruction sets and firmware development. These files may be found

on the Microchip web site or from your local sales office.

Usermaywantto specificallyreferto the“PIC24FJ256GB110FamilyDeviceDataSheet”

(DS39897) for information on the PIC24F microcontroller used in this application.

MPLAB®ASM30, MPLAB®LINK30 and Utilities User’s Guide (DS51317)

This document helps you use Microchip Technology’s language tools for PIC24F

devices based on GNU technology. The language tools discussed are the MPLAB

ASM30 Assembler, MPLAB LINK30 Linker, MPLAB LIB30 Archiver/Librarian and other

16-bit device utilities.

MPLAB®C30 C Compiler User’s Guide and Libraries (DS51284)

This document helps you use Microchip’s MPLAB C30 C compiler to develop your

application. MPLAB C30 is a GNU-based language tool, based on source code from

the Free Software Foundation (FSF). For more information about FSF, see

www.fsf.org.

MPLAB®IDE User’s Guide (DS51519)

This document describes how to use the MPLAB IDE integrated development

environment, as well as the MPLAB project manager, MPLAB editor and MPLAB SIM

simulator. Use these development tools to help you develop and debug application

code.

PICDEM Touch Sense 2 Demo Board User’s Guide

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

DEVELOPMENT SYSTEMS CUSTOMER CHANGE NOTIFICATION SERVICE

Microchip’s customer notification service helps keep customers current on Microchip

products. Subscribers will receive e-mail notification whenever there are changes,

updates, revisions or errata related to a specified product family or development tool of

interest.

To register, access the Microchip web site at www.microchip.com, click on Customer

Change Notification and follow the registration instructions.

The Development Systems product group categories are:

•Compilers – The latest information on Microchip C compilers and other language

tools. These include the MPLAB C18 and MPLAB C30 C compilers; MPASM™

and MPLAB ASM30 assemblers; MPLINK™ and MPLAB LINK30 object linkers;

and MPLIB™ and MPLAB LIB30 object librarians.

•In-Circuit Emulators – The latest information on Microchip in-circuit

emulators.These include the MPLAB REAL ICE™ and MPLAB ICE 2000 in-circuit

emulators.

•In-Circuit Debuggers – The latest information on Microchip in-circuit debuggers.

These include MPLAB ICD 2 and PICkit™ 2.

•MPLAB IDE – The latest information on Microchip MPLAB IDE, the Windows®

Integrated Development Environment for development systems tools. This list is

focused on the MPLAB IDE, MPLAB IDE project manager, MPLAB editor and

MPLAB SIM simulator, as well as general editing and debugging features.

•Programmers – The latest information on Microchip programmers. These include

the MPLAB PM3 device programmer and the PICSTART®Plus and PICkit 1 and 2

development programmers.

Preface

CUSTOMER SUPPORT

Users of Microchip products can receive assistance through several channels:

• Distributor or Representative

• Local Sales Office

• Field Application Engineer (FAE)

• Technical Support

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

DOCUMENT REVISION HISTORY

Revision A (June 2008)

• Initial Release of this Document

PICDEM Touch Sense 2 Demo Board User’s Guide

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