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Custom triggers with Data Acquisition Toolbox (TM)

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07 May 2009 (Updated )

Example of a data acquisition GUI with custom triggers

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File Information
Description

This m-file implements a simple data acquisition gui with multiple channels and custom triggering
  
It demonstrates how to:
 
1) Use nested functions to simplify data acquisition programs
 
2) Use a simple GUI (a couple of pushbuttons) to start and stop data acquisition.
 
3) Wait for an event/trigger (like a button press) and log pre-event or pre-trigger data from multiple synchronized channels.
 
4) Record pretrigger data based on custom criteria. In this m-file the triggering event is a button click. However, the event could be any custom criterion (e.g., the data amplitude is greater than a threshold *and* a toggle button is enabled).

Requires: the Data Acquisition Toolbox (TM) and the Winsound adapter. It does not depend on any hardware-specific capabilities.

Acknowledgements

This file inspired Pre Trigger Data Capture And Custom Triggering.

Required Products Data Acquisition Toolbox
MATLAB release MATLAB 7 (R14)
Other requirements Windows platform
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Updates
02 Jul 2009

Added copyright notice to MATLAB code file.

15 Jul 2009

Added trademark symbols as appropriate.

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