You can define a TRIGGER condition. When the hardware detects this condition, it will 'TRIGGER' the logic analyzer. When the sample buffer fills (or you manually STOP it), the data is transferred to the PC. The software on the PC then displays the data to you.
The trigger point is centered on the screen and is always TIME 0. All data prior to the trigger is negative time and all data after the trigger is positive time. If you stop the analyzer before a trigger condition is detected, the approximate center of the collected sample buffer is considered the trigger and the end of the data is the point where the hardware sampling was manually stopped.
In our DigiView Software, triggers are specified in terms of SIGNALS. After assigning channels to signal names, you can configure the trigger condition based on the defined signals (see: Signals). Most engineers will find it easier to reference the condition as it relates to the circuit's function rather than remembering which channels of the analyzer were used to connect to specific signals in the circuit.
DigiView's new trigger configuration screen centers the user's focus on function; making it much easier to quickly analyze and modify a very complex trigger condition. The following graphic is an example of an advanced trigger condition for the DV3 series.
To access Trigger configuration options, click the Project Settings button on the tool bar, then select the Hardware Triggers tab.
Example of an Advanced Trigger Configuration for Model DV3500: