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Interface com.arcsinc.hardwarehost.datamgmt.DataAcqMgr

public interface DataAcqMgr

extends AbsDataMgr

See Also:

AbsDataMgr, ExtVariableSpec

ACQ_COLLECTING

Data state: data is b

Data state: data is being acquired (ACQ_COLLECTING)

ACQ_COMPLETED

Data state: acquisition is completed (ACQ_COMPLETED)

ACQ_IDLE

Data state: default state (ACQ_IDLE)

ACQ_STOPPED

Data state: acquisition completed preleted prematurely (ACQ_STOPPED)

ACQ_WAITING

Data state: have valid spec, waiting for start (ACQ_WAITING)

autoStartDataAcq()

Starts the data acquisition process on the hardware implicitly.

getDataAcqState()

Returns the current data acquisition state.

resetDataAcq()

Resets the data acquisition process.

retrieveData()

Retrieves the acquired data from the hardware and returns it to the calling agent.

setAcquisitionSpec(int, int, int, Vector)

Set the data acquisition specification.

startDataAcq()

Starts the data acquisition process on the hardware explicitly.

stopDataAcq()

Stops the data acquisition process currently running on the hardware.

 public static final int ACQ_IDLE

Data state: default state (ACQ_IDLE)

 public static final int ACQ_WAITING

Data state: have valid spec, waiting for start (ACQ_WAITING)

 public static final int ACQ_COLLECTING

Data state: data is being acquired (ACQ_COLLECTING)

 public static final int ACQ_COMPLETED

Data state: acquisition is completed (ACQ_COMPLETED)

 public static final int ACQ_STOPPED

Data state: acquisition completed prematurely (ACQ_STOPPED)

 public abstract boolean setAcquisitionSpec(int period,
                                            int noPoints,
                                            int channel,
                                            Vector params)

Set the data acquisition specification.

Parameters:

period - sample period in milliseconds

noPoints - number of points to acquire

channel - the interrupt channel in which the data is acquired

params - Vector of ExtVariableSpec(s) to be acquired.

Returns:

returns true if the specification was accepted.

 public abstract Number[] retrieveData()lic abstract Number[] retrieveData()

Retrieves the acquired data from the hardware and returns it to the calling agent. The data is in the form of a single dimensional array. The array is filled data point by data point; the point consists of the hardware-based time index and then each requested channel.

Returns:

an array of Number with the data

 public abstract boolean startDataAcq()

Starts the data acquisition process on the hardware explicitly.

Returns:

true if successfully started, otherwise false.

 public abstract boolean autoStartDataAcq()

Starts the data acquisition process on the hardware implicitly. In this mode, the trigger event (start) is generated within the hardware application program.

Returns:

true if successfully started, otherwise false.

ataAcq">stopDataAcq
 public abstract boolean stopDataAcq()


  
 Stops the data acquisition process currently running on the
 hardware.

  

    
 Returns:
    
 true if successfully stopped.
  


resetDataAcq
 public abstract boolean resetDataAcq()


  
 Resets the data acquisition process.  This includes deleting
 any existing specification.

  

    
 Returns:
    
 true if successfully reset.
  


getDataAcqState
 public abstract int getDataAcqState()


  
 Returns the current data acquisition state.

  

    
 Returns:
    
 the current data acquisition state.
  


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