Class DigitalGlitchFilter

  • All Implemented Interfaces:
    Sendable, AutoCloseable

    public class DigitalGlitchFilter
    extends SendableBase
    Class to enable glitch filtering on a set of digital inputs. This class will manage adding and removing digital inputs from a FPGA glitch filter. The filter lets the user configure the time that an input must remain high or low before it is classified as high or low.
    • Constructor Detail

      • DigitalGlitchFilter

        public DigitalGlitchFilter()
        Configures the Digital Glitch Filter to its default settings.
    • Method Detail

      • add

        public void add​(DigitalSource input)
        Assigns the DigitalSource to this glitch filter.
        Parameters:
        input - The DigitalSource to add.
      • add

        public void add​(Encoder input)
        Assigns the Encoder to this glitch filter.
        Parameters:
        input - The Encoder to add.
      • add

        public void add​(Counter input)
        Assigns the Counter to this glitch filter.
        Parameters:
        input - The Counter to add.
      • remove

        public void remove​(DigitalSource input)
        Removes this filter from the given digital input.
        Parameters:
        input - The DigitalSource to stop filtering.
      • remove

        public void remove​(Encoder input)
        Removes this filter from the given Encoder.
        Parameters:
        input - the Encoder to stop filtering.
      • remove

        public void remove​(Counter input)
        Removes this filter from the given Counter.
        Parameters:
        input - The Counter to stop filtering.
      • setPeriodCycles

        public void setPeriodCycles​(int fpgaCycles)
        Sets the number of FPGA cycles that the input must hold steady to pass through this glitch filter.
        Parameters:
        fpgaCycles - The number of FPGA cycles.
      • setPeriodNanoSeconds

        public void setPeriodNanoSeconds​(long nanoseconds)
        Sets the number of nanoseconds that the input must hold steady to pass through this glitch filter.
        Parameters:
        nanoseconds - The number of nanoseconds.
      • getPeriodCycles

        public int getPeriodCycles()
        Gets the number of FPGA cycles that the input must hold steady to pass through this glitch filter.
        Returns:
        The number of cycles.
      • getPeriodNanoSeconds

        public long getPeriodNanoSeconds()
        Gets the number of nanoseconds that the input must hold steady to pass through this glitch filter.
        Returns:
        The number of nanoseconds.
      • initSendable

        public void initSendable​(SendableBuilder builder)
        Description copied from interface: Sendable
        Initializes this Sendable object.
        Parameters:
        builder - sendable builder