SBOU283 June   2022

 

  1.   Abstract
  2.   Trademarks
  3. 1Overview
    1. 1.1 EVM Kit List
    2. 1.2 Main EVM Elements
    3. 1.3 Operational Modes
      1. 1.3.1 Operational Mode 1
      2. 1.3.2 Operational Mode 2
      3. 1.3.3 Operational Modes 3 and 4
  4. 2EVM GUI
    1. 2.1 System Requirements
    2. 2.2 Installation
    3. 2.3 GUI Home Page
    4. 2.4 SCB Firmware
    5. 2.5 Data Plot
  5. 3Schematic
  6. 4Layout
  7. 5Bill of Materials

Operational Mode 2

The second operational mode keeps the LDC3114's baseline tracking algorithm enabled, but looks at each channels data instead of the digital output. All eight of the button channels can report data to the main MCU through the I2C. From there, the buttons can report the maximum response through the button LEDs. With a higher response in data, more LEDs will light up. If a force on a button surface continues to increase after all LEDs have been turned on, the maximum force will be recorded and used as a new baseline to compare against when illuminating the LEDs. This will reset to the default value when the operational mode changes.