Datasheet

Table Of Contents
Figure 50-4. Self-Capacitance Sensor Arrangement
MCU
PTC
Module
Y
0
Y
1
Y
m
C
y0
C
y1
C
ym
Sensor Capacitance C
y
For more information about designing the touch sensor, refer to Buttons, Sliders and Wheels Touch
Sensor Design Guide.
50.5.2 Analog-Digital Converter (ADC)
The PTC is using the ADC for signal conversion and acquisition. The ADC must be enabled and
configured appropriately to allow correct behavior of the PTC.
Related Links
45. ADC – Analog-to-Digital Converter
50.6 Functional Description
In order to access the PTC, the user must use the Atmel|START QTouch
®
Configurator to configure and
link the QTouch Library firmware with the application software. QTouch Library can be used to implement
buttons, sliders, and wheels in a variety of combinations on a single interface.
Figure 50-5. QTouch Library Usage
Custom Code
Compiler
Link
Application
QTouch
Library
For more information about QTouch Library, refer to the QTouch Library Peripheral Touch Controller User
Guide.
SAM D5x/E5x Family Data Sheet
PTC - Peripheral Touch Controller
© 2019 Microchip Technology Inc.
Datasheet
DS60001507E-page 1887