12 Keysight M9036A PXIe Embedded Controller User Guide
Introduction M9036A Functional Description
Software generated trigger to selected backplane trigger bus
Trigger Source:
Software Generated
Trigger Destination:
One of the eight PXI backplane trigger lines
IVI Driver Syntax (C#):
TriggerRouting.SetRoute (
____AgM9036TriggerRouteEnum.AgM9036TriggerRouteSoftwareToTriggerBus,
____AgM9036PxiTrigEnum.AgM9036PxiTrig[0:7]
);
To set the software trigger level use the property:
____TriggerRouting.SoftwareRouteTriggerState
For example, to create a negative-going edge ( ):
____TriggerRouting.SoftwareRouteTriggerState = true;
____TriggerRouting.SetRoute (
________AgM9036TriggerRouteEnum.AgM9036TriggerRouteSoftwareToTriggerBus,
________AgM9036PxiTrigEnum.AgM9036PxiTrig[0:7]
____);
____TriggerRouting.SoftwareRouteTriggerState = false;
Notes:
• A “software trigger” does not generate a trigger pulse. The SoftwareRouteTriggerState property in the IVI driver
defines a voltage level: True = 3.3V (asserted) and False = 0.0V (not asserted). To generate a pulse, you must toggle
the state of the
SoftwareRouteTriggerState property; that is, set the property to one state, wait for the desired
length of pulse, and then set the property to the opposite state.
• You must select only one of the eight PXI backplane trigger bus lines (PXI_TRIG[0:7]) as a destination.
• TriggerRouting.Enabled returns “true” if and only if the trigger routing subsystem is enabled.
• Use TriggerRouting.RouteConfiguration to determine the current routing configuration.
• TriggerRouting.ResetRoute opens all trigger routing paths and disables the trigger routing subsystem. ResetRoute
does not alter the state of the SoftwareRouteTriggerState property. However, the Reset method of the IVI driver resets
the state to the power-on default of True (3.3V).
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