Microchip QT60326 Manual de Usario

Microchip No categorizado QT60326

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APPLICATION NOTE

AT08801: Single Key Configurator - User Guide

Atmel QTouch

Features

• Single QTouch® key configuration

• QTouch and QTouchADC acquisition methods

• Operating modes (ON/OFF, Toggle, Debug)

• Discrete output pin configuration

• Configure sensor specific and global p arameters

• Support for touch data streaming

Description

Atmel® offers single key QTouch solutions the form of application specific devices

such as AT42QT1010, AT42QT1011 . These devices are , and AT42QT1012

configured for fixed settings and can meet the requirements of most applications

for single touch key.

The Single Key Configurator Tool has been designed to support user configurable

settings. The tool is capable of generating a binary file (Hex format) based on the

selected configuration. The user can program the generated .hex file into the Atmel

ATtiny10 device to have a customized single QTouch key solution suited for their

end application. This document describes the different features, operating modes,

and configurable parameters supported by Single Key Configurator Tool. The the

tool is designed to support ATtiny10 device only. The Single Key Configurator s

Tool is available in Atmel QTouch Library 5.0 release.

Atmel- A-42326 Single- - - -Key Configurator User Guide_AT08801_0 2012 5

AT08801: Single Key Configurator User Guide [APPLICATION NOTE]

Atmel- A-42326 Single- -Key Configurator Guide_AT08801_0- -User 22015

Contents

1 Single Key Configurator Tool ..................................................................................................3

1.1 On/Off Mode ......................................................................................................................................................... 4

1.1.2 QTouch Key Configuration ...................................................................................................................... 6

1.1.3 QTouchADC Key Configuration ............................................................................................................... 7

1.2 Toggle Mode ........................................................................................................................................................ 8

1.3 Debug Mode ......................................................................................................................................................... 9

1.3.2 Description of the Debug Interface ........................................................................................................ 10

2 QTouch Parameters ...............................................................................................................12

2.1 Detect Integration Filter ...................................................................................................................................... 12

2.2 Negative Threshold ............................................................................................................................................ 12

2.3 Positive Threshold .............................................................................................................................................. 12

2.4 Positive Drift Rate............................................................................................................................................... 13

2.5 Negative Drift Rate ............................................................................................................................................. 13

2.6 Dwell Time ......................................................................................................................................................... 13

2.7 Anti-Touch Recalibration Threshold ................................................................................................................... 13

3 Product Features .................................................................................................................... 14

3.1 Max On Duration ................................................................................................................................................ 14

3.1.1 Infinite Max On Duration without Battery Tracking Feature ................................................................... 14

3.2 Sleep Period ....................................................................................................................................................... 14

3.3 HeartBeat ........................................................................................................................................................... 15

3.4 Output Pin Polarity ............................................................................................................................................. 15

3.5 Oversample ........................................................................................................................................................ 15

3.6 Scaling ............................................................................................................................................................. 16

4 Output .hex File Generation................................................................................................... 17

5 Device Programming.............................................................................................................. 19

Appendix A DEBUG Output ...................................................................................................... 22

A.1 Hawkeye PC Software ....................................................................................................................................... 22

A.2 Debug Mode Hardware Configuration ................................................................................................................ 22

Appendix B Revision History .................................................................................................... 24