MATLAB IMAGE ACQUISITION TOOLBOX - RELEASE NOTES Guide de l'utilisateur télécharger pdf (Page 150)

7 Storing Adaptor Information in an IMDF File

7-18

Specifying Hardware Trigger Information

To specify hardware trigger information in an IMDF file, use the TriggerInfo node.

A TriggerInfo node can be the child of the ImageAcquisitionInfo, Device,

VideoFormat, and Section nodes.

You specify the source of the hardware trigger in a TriggerSource node that is the

child of the TriggerInfo node. You specify the conditions under which trigger fires in

one or more TriggerCondition nodes, which are children of the TriggerSource node.

The following example outlines how to use these elements to specify trigger information.

The words in italics represent text you define.

</TriggerInfo>

</Device>

</ImageAcquisitionInfo>

The following table lists the elements used to specify hardware trigger information.

Element Description Attributes

<TriggerInfo> Defines information about a

hardware trigger.

None

<TriggerSource> Defines the source of

the hardware trigger.

A Triggerinfo node

must contain or more

TriggerSource nodes.

See “Specifying Trigger

Sources” on page 7-19.

<TriggerCondition> Defines a condition that

must be met before a

hardware trigger fires.

A TriggerSource node

See “Specifying Trigger

Conditions” on page 7-19.

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MATLAB IMAGE ACQUISITION TOOLBOX - RELEASE NOTES Guide de l'utilisateur Page 150