TIDUEM5 December   2018

 

  1.    Description
  2.    Resources
  3.    Features
  4.    Applications
  5.    Design Images
  6. 1System Description
    1. 1.1 Key System Specifications
    2. 1.2 Introduction
    3. 1.3 MSP430FR2633 CapTIvate MCU
  7. 2System Overview
    1. 2.1 Block Diagram
    2. 2.2 Design Considerations
    3. 2.3 Highlighted Products
      1. 2.3.1 MSP430FR2633 MCU Block Diagram
      2. 2.3.2 CapTIvate Technology Block Diagram
  8. 3Hardware, Software, Testing Requirements, and Test Results
    1. 3.1 System Design Theory
    2. 3.2 Capacitive Touch Sensors
      1. 3.2.1 Wheel Sensor
      2. 3.2.2 Slider Sensor
      3. 3.2.3 Button Sensor
    3. 3.3 Gesture and Key Mapping
      1. 3.3.1 Media Player
      2. 3.3.2 USB HID Keyboard Data
    4. 3.4 Capacitive Touch Gestures
      1. 3.4.1 How Gesture Detection Works
      2. 3.4.2 Tap Gesture
      3. 3.4.3 Double-Tap Gesture
      4. 3.4.4 Tap-and-Hold Gesture
      5. 3.4.5 Swipe Gesture
      6. 3.4.6 Slide Gesture
    5. 3.5 Getting Started With Hardware
    6. 3.6 Getting Started With Firmware
      1. 3.6.1 Programming Target MCU
      2. 3.6.2 MSP430FR2633 CapTIvate Gesture Firmware
      3. 3.6.3 Memory Footprint
      4. 3.6.4 MSP430F5529 HID Keyboard Device Firmware
    7. 3.7 Testing
      1. 3.7.1 Gesture
      2. 3.7.2 Power Measurements
      3. 3.7.3 Moisture Tolerance
  9. 4Demonstration
    1. 4.1 Wheel
      1. 4.1.1 Volume Control
      2. 4.1.2 Changing Music Tracks
        1. 4.1.2.1 Play/Pause
      3. 4.1.3 Mute
    2. 4.2 Slider
      1. 4.2.1 Volume Control
      2. 4.2.2 Changing Music Tracks
      3. 4.2.3 Play or Pause
      4. 4.2.4 Mute
    3. 4.3 Buttons
      1. 4.3.1 Volume Control
      2. 4.3.2 Changing Music Tracks
      3. 4.3.3 Play or Pause
      4. 4.3.4 Mute
  10. 5Design Files
    1. 5.1 Schematic
    2. 5.2 Bill of Materials
  11. 6Software Files
  12. 7Related Documentation
    1. 7.1 Trademarks
  13. 8Terminology
  14. 9About the Author

4 Demonstration

The following description assumes that the target MCUs have been programmed and the MSP430FR2633 and MSP430F5529 LaunchPad development kits have been connected together and connected to a Windows PC using a USB cable. The MSP430F5529 should enumerate as a HID interface device automatically. No drivers are required.

NOTE

During this demonstration, leave the mouse focus on the media player application. Failing to do so allows keyboard commands to be sent to other open applications and can result in undesired behavior.

When power is applied to the TIDM-02004 reference design hardware, LED1 and LED2 located on the MSP430FR2633 MCU board will turn on momentarily, then turn off. Touching the slider, wheel, or buttons causes LED1 to turn on and remain on as long as the finger remains touching. When a valid gesture is detected, LED2 toggles on and off, indicating the gesture is valid and the corresponding key value has been sent to the Windows application.

Launch the Windows Media Player application on the PC. Select a favorite song and mouse click to get the song started.