Overview

  Real-Time Data Acquisition

  Example: The Data Acquisition Session

  Understanding Device Objects

  Creating an Array of Device Objects

  Where Do Device Objects Exist?

  Adding Channels and Lines

  Mapping Hardware Channel IDs to the MATLAB Indices

  Overview

  Property Types

  Returning Property Names and Property Values

  Configuring Property Values

  Specifying Property Names

  Default Property Values

  The Property Inspector

  Device Object States

  Starting the Device Object

  Logging or Sending Data

  Stopping the Device Object

  Channel Group

  Referencing Individual Hardware Channels

  Example: Adding Channels for a Sound Card

  Analog Input: Basic Properties

  The Sampling Rate

  Trigger Types

  The Samples to Acquire per Trigger

  Starting the Analog Input Object

  Logging Data

  Stopping the Analog Input Object

  Basic Steps for Acquiring Data

  Acquiring Data with a Sound Card

  Acquiring Data with a National Instruments Board

  Status Properties

  The Display Summary

  Properties Associated with Configuring and Sampling Input Channels

  Input Channel Configuration

  Sampling Rate

  Channel Skew

  Analog Input Data Management Properties

  Previewing Data

  Rules for Using peekdata

  Extracting Data from the Engine

  Returning Time Information

  Analog Input Trigger Properties

  Defining a Trigger: Trigger Types and Conditions

  Executing the Trigger

  Trigger Delays

  Repeating Triggers

  How Many Triggers Occurred?

  When Did the Trigger Occur?

  Device-Specific Hardware Triggers

  Understanding Events and Callbacks

  Event Types

  Recording and Retrieving Event Information

  Creating and Executing Callback Functions

  Examples: Using Callback Properties and Functions

  Analog Input Engineering Units Properties

  Example: Performing a Linear Conversion

  Linear Conversion with Asymmetric Data

  Creating an Analog Output Object

  Adding Channels to an Analog Output Object

  Configuring Analog Output Properties

  Outputting Data

  Analog Output Examples

  Evaluating the Analog Output Object Status

  The Analog Output Subsystem

  Queuing Data with putdata

  Example: Queuing Data with putdata

  Analog Output Trigger Properties

  Defining a Trigger: Trigger Types

  Executing the Trigger

  How Many Triggers Occurred?

  When Did the Trigger Occur?

  Device-Specific Hardware Triggers

  Understanding Events and Callbacks

  Event Types

  Recording and Retrieving Event Information

  Examples: Using Callback Properties and Callback Functions

  Engineering Units

  Example: Performing a Linear Conversion

  Creating a Digital I/O Object

  The Parallel Port

  Using the Addline Function

  Line and Port Characteristics

  Referencing Individual Hardware Lines

  Writing Digital Values

  Reading Digital Values

  Example: Writing and Reading Digital Values

  Overview

  Timer Events

  Starting and Stopping a Digital I/O Object

  Example: Generating Timer Events

  Running Property

  The Display Summary

  Saving Device Objects to an M-File

  Saving Device Objects to a MAT-File

  Analog Input Logging Properties

  Specifying a Filename

  Retrieving Logged Information

  Example: Logging and Retrieving Information

  Opening the Oscilloscope

  Hardware Configuration

  Creating a Display

  Creating Additional Displays

  Configuring Display Properties

  Math and Reference Channels

  Removing Channel Displays

  Scaling the Channel Data

  Configuring Channel Properties

  Acquisition Types

  Trigger Types

  Configuring Trigger Properties

  Predefined Measurement

  Defining a Measurement

  Defining a New Measurement Type

  Configuring Measurement Properties

  Channels

  Measurements

  Using the daqlib Command from the MATLAB Workspace

  Using the Simulink Library Browser

  Data Acquisition Toolbox Block Library

  Example: Bringing Analog Data into a Model

  Common Properties

  Channel Properties

  Common Properties

  Channel Properties

  Common Properties

  Line Properties

  Getting Command-Line Property Help

  Getting Command-Line Property Help

  What Driver Are You Using?

  Is Your Hardware Functioning Properly?

  What Driver Are You Using?

  Is Your Hardware Functioning Properly?

  NI-DAQmx Versus Traditional NI-DAQ Drivers

  What Driver Are You Using?

  Is Your Hardware Functioning Properly?

  Verify If Your Sound Card Is Functioning

  Microphone and Sound Card Types

  Testing with a Microphone

  Testing with a CD Player

  Running in Full-Duplex Mode

  Registering the Hardware Driver Adaptor

  Contacting The MathWorks