AW00089317000 Image Acquisition Control
Basler ace GigE 101
7.4.2.2 Setting the Parameters Related to Software Frame Start
Triggering and Applying a Software Trigger Signal
You can set all of the parameters needed to perform software frame start triggering from within your
application software by using the Basler pylon API. The following code snippet illustrates using the
API to set the parameter values and to execute the commands related to software frame start
triggering with the camera set for continuous frame acquisition mode. In this example, the trigger
mode for the acquisition start trigger will be set to off:
// Set the acquisition mode to continuous frame
Camera.AcquisitionMode.SetValue( AcquisitionMode_Continuous );
// Select the acquisition start trigger
Camera.TriggerSelector.SetValue( TriggerSelector_AcquisitionStart );
// Set the mode for the selected trigger
Camera.TriggerMode.SetValue( TriggerMode_Off );
// Disable the acquisition frame rate parameter (this will disable the
camera’s
// internal frame rate control and allow you to control the frame rate
with
// software frame start trigger signals)
Camera.AcquisitionFrameRateEnable.SetValue( false );
// Select the frame start trigger
Camera.TriggerSelector.SetValue( TriggerSelector_FrameStart );
// Set the mode for the selected trigger
Camera.TriggerMode.SetValue( TriggerMode_On );
// Set the source for the selected trigger
Camera.TriggerSource.SetValue ( TriggerSource_Software );
// Set for the timed exposure mode
Camera.ExposureMode.SetValue( ExposureMode_Timed );
// Set the exposure time
Camera.ExposureTimeAbs.SetValue( 3000 );
// Execute an acquisition start command to prepare for frame
acquisition
Camera.AcquisitionStart.Execute( );
while ( ! finished )
{
// Execute a Trigger Software command to apply a frame start
// trigger signal to the camera
Camera.TriggerSoftware.Execute( );
// Retrieve acquired frame here
}
Camera.AcquisitionStop.Execute( );
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