MATLAB EMBEDDED IDE LINK 4 - FOR USE WITH TEXAS INSTRUMENTS CODE COMPOSER STUDIO Guide de l'utilisateur télécharger pdf (Page 411)

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Idle Task

For example, en t erin g [2,3, 1] in this ﬁeld indicates that there

arethreefunctionstobeexecuted,andthatthethirdfunction

is executed ﬁrst, the ﬁrst function is executed second, and the

second function is executed third. After all functions are executed,

the Idle Task block cycles back and repeats the execution of the

functions in the same order.

Preemption ﬂags

Higher-priority interrupts can preempt interrupts that have lower

priority. To allow you to control preemption, use the preemption

ﬂags to specify whether an interrupt can b e preempted.

Entering

1 indicates that the in terrupt can be preempted.

Entering

0 indicates the interrupt cannot be preempted. When

Task numbers contains more than one task, you can assign

different preemption ﬂags to each task by entering a vector of ﬂag

values, co rresponding to the order of the tas ks in Task numbers.

If Task numbers contains more than one task, and you enter

only one ﬂag value here, th a t status a pp lies to all tasks.

In the default settings

[0 1], the task with priority 1 in Task

numbers is not preemptible, and the priority

2 task can be

preempted.

Enable simulation input

When you select this o ption, Simulink software adds an input

port to the Idle Task block. Thisportisusedinsimulation

only. Connect one or more simulated interrupt sources to the

simulation input.

Note Select this check box to tes t asynchronous interrupt processing

behavior in Simulink software.

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MATLAB EMBEDDED IDE LINK 4 - FOR USE WITH TEXAS INSTRUMENTS CODE COMPOSER STUDIO Guide de l'utilisateur Page 411

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