Learn more about SimEvents

Signal-Based Function-Call Event Generator - Generate function-call events in response to signal-based events

Library

Generators / Event Generators

Description

This block generates an output function call corresponding to each signal-based event or input function call. You specify the type of event the block responds to. You can use the function call to invoke function-call subsystems, Stateflow blocks, or other blocks that accept function-call inputs.

This block is similar to the Signal-Based Event to Function-Call Event block, which offers more flexibility.

Ports

Signal Input Ports

Label	Description
ts	The block generates a function call when the application updates the signal at this port. You see this port only if you set Generate function call only upon to `Sample time hit from port ts`.
tr	The block generates a function call when the signal has a rising or falling edge, depending on the Trigger type parameter. You see this port only if you set Generate function call only upon to `Trigger from port tr`.
vc	The block generates a function call when the signal at this port increases or decreases, depending on the Type of change in signal value parameter. You see this port only if you set Generate function call only upon to `Change in signal from port vc`.
fcn	The block generates a function call when this input port detects a function call. You see this port only if you set Generate function call only upon to `Function call from port fcn`. Do not connect this port to an output port from the same instance of this block.

Signal Output Ports

Label	Description	Order of Update
f1	Function-call signal.	1
#f1	Number of function calls the block has generated during the simulation.	2

The initial output value for the numerical signals, which is in effect from the start of the simulation until the first update by the block, is 0.

Dialog Box

Function Call Tab

Generate function call only upon: The primary criterion for determining when the block generates a function call. Optional secondary criteria are established by the Suppress function call... parameters below.
Trigger type: Determines whether rising, falling, or either type of trigger edge causes the block to generate a function call. You see this field only if you set Generate function call only upon to Trigger from port tr.
Type of change in signal value: Determines whether rising, falling, or either type of value change causes the block to generate a function call. You see this field only if you set Generate function call only upon to Change in signal from port vc.
Resolve simultaneous signal updates according to event priority: Select this option to control the sequencing of the function-call event, relative to other simultaneous events in the simulation. If you do not select this option, the application issues the function call immediately upon detecting the signal-based event that causes it. For details, see Choosing How to Resolve Simultaneous Signal Updates.
Event priority: The priority of the function-call event, relative to other simultaneous events in the simulation. For details, see Specifying Event Priorities to Resolve Simultaneous Signal Updates. You see this field only if you select Resolve simultaneous signal updates according to event priority.