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Home » NEWEST Products » New by Manufacturer » Freescale Semiconductor » CRTOUCH Touch-Sensing Platform - Freescale
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Freescale CRTOUCH Xtrinsic Touch-Sensing Platform

Freescale CRTOUCH Xtrinsic Touch-Sensing Platform

Freescale CRTOUCH Xtrinsic Touch-Sensing Platform

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Additional Resources

Datasheet Datasheet
Fact Sheet Fact Sheet
Download CRTouch GUI software Freescale Registration Required

Freescale CRTOUCH Xtrinsic Touch-Sensing Platform is the industry's first solution that combines 4- and 5-wire resistive screen controller with basic gesture recognition and up to four capacitive touch sensing electrodes, all encompassed in a single IC. This Freescale touch-sensing platform provides all the signal interfacing and processing to calculate X and Y coordinates as well as to detect and process two touch gestures for human-machine interface applications. CRTOUCH allows the implementation of technologies reducing space, software development cost, and time to market.


Features
  • Standard X, Y resistive touch screen detection with optional calibration and built-in filter for 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
  • UART and I2C communication available
  • 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
Applications
  • Control panels
  • Human-machine interface
  • Keyboard replacement
  • Point-of-sale terminals
  • Signature capture devices
  • Kiosks

Block Diagram
Block Diagram

Freescale EVBCRTOUCH Touch Sensing Platform Eval Board

Freescale EVBCRTOUCH Touch Sensing Platform Evaluation Board is a low cost development board that allows quick connection between any standard 4- and 5-wire resistive screen. This Freescale evaluation board also features four capacitive electrodes, enabling a quick ramp up. The EVBCRTOUCH board also provides a USB to Serial bridge to allow a connection to any host Processor or PC via USB. The integrated CRTOUCH resistive touch screen controller enables 4-wire resistive touch screens to handle basic gesture recognition. CRTOUCH also allows the addition of up to 4 capacitive electrodes to your system. It supports 4-wire and 5-wire touch screens and communicates over UART and IIC communication protocols.

Features
  • Standard X,Y resistive touch screen detection with optional calibration
  • Pressure detection on 4 and 5 wires
  • 16 samples FIFO with watermark
  • Gesture detection:
    • Slide
    • Two touch pinch and expand
    • Two touch rotate
  • 4 capacitive electrodes independent from touch screen:
    • Keypad
    • Rotary
    • Slider
  • I²C and UART communication
    • Two selectable I²C slave addresses
    • UART baud rate auto detection mechanism
  • Event and touch indicators for main host processor
  • Wake by single touch, double touch, gestures or capacitive electrodes activity
  • Low power consumption
  • Linux and Android integration example code available
Kit Contents
  • EVBCRTOUCH Board
    • 4-wire connector
    • 5-wire connector
    • 4 capacitive electrodes
  • Resistive screen
  • USB cable
  • Quick Start Guide document

Evaluation Board Block Diagram

Evaluation Board Block Diagram
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