6.3 Functional Description

Acquisition modules are target specific, each having a hardware configuration structure depending on the touch sensing technology and method applied.

Features Implemented in this Acquisition Module

  • Hardware Calibration for Sensor Nodes
    • Calibration of Prescaler/Resistor/Charge share delay to compensate for a time constant of sensor electrodes
    • Calibration of internal compensation circuit to match sensor load
  • Self-Capacitance and Mutual Capacitance Sensor Touch Measurement with Normal Sequencing
  • Low-Power Mode of Automated Scanning Using Event System (Currently not Supported on Atmel Start Configurator)