Freescale Semiconductor Evaluation Board for Touch Sensing Platform EVBCRTOUCH EVBCRTOUCH Informationshandbuch
Produktcode
EVBCRTOUCH
Ready Play Solutions
Xtrinsic Capacitive and Resistive
Touch-Sensing Platform
Touch-Sensing Platform
Overview
Freescale Ready Play solutions integrate functionality in different applications, allowing
customers to add features while reducing development cost—simplifying design cycles
and enabling scalability in applications and systems.
customers to add features while reducing development cost—simplifying design cycles
and enabling scalability in applications and systems.
The Xtrinsic capacitive and resistive touch-sensing platform (CRTouch) enables resistive
touch screens to handle basic gesture recognition and allows the addition of up to four
capacitive electrodes to your system, all packaged on a 5 x 5 mm lead-free 32-pin
QFN. It supports four- and five-wire touch screens and communicates over UART and
I2C communication protocols. The implementation of these technologies enables the
CRTouch to help reduce space, cut software development costs and speed time
to market.
touch screens to handle basic gesture recognition and allows the addition of up to four
capacitive electrodes to your system, all packaged on a 5 x 5 mm lead-free 32-pin
QFN. It supports four- and five-wire touch screens and communicates over UART and
I2C communication protocols. The implementation of these technologies enables the
CRTouch to help reduce space, cut software development costs and speed time
to market.
Key Features
• Standard X, Y resistive touch screen detection
with optional calibration and built-in filter for
improved stability
improved stability
• Four- and five-wire pressure detection
• Two touch gesture detection on a four wire
screen
• Zoom in/out
• Rotate direction indication and angle
measurement
• Four capacitive electrodes independent from
touch screen may be configured as keypad,
rotary or slider
rotary or slider
• UART and I
2
C communication available
Two selectable I
2
C addresses
UART baud rate auto detection
mechanism
• Event indicator signal for host processor
• Configurable sample rate with up to 200
points per second
• Linux
®
, Android
®
and PEG integration
example code available
• 1.8- to 3.6-volt operation
• 32-pin QFN package
• –40°C to +105°C operating temperature
• Normal run, sleep and shutdown modes for
reduced power consumption