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DAC (Digital-to-Analog Conversion)

LibXR::DAC provides a platform-independent abstract interface for digital-to-analog conversion (DAC), used to output an analog quantity represented by a floating-point value.

Interface Definition​

class DAC {
public:
  DAC() = default;

  // Outputs the DAC floating-point value
  virtual ErrorCode Write(float voltage) = 0;
};
  • Write(voltage) is a pure virtual function, and must be implemented by derived classes;
  • the base interface only guarantees that the argument type is float, and does not define one universal physical unit, reference voltage, or calibration rule;
  • in many concrete implementations this value is interpreted as a voltage target, but the actual unit and output range still depend on the backend;
  • Returns ErrorCode, indicating success or failure of the operation;

Example Usage​

// Example: output one floating-point target value to the DAC
dac->Write(1.23f);