VxWorks Task

Spawn task function as separate VxWorks thread

Add-On Required: This feature requires the Embedded Coder Support Package for Xilinx Zynq Platform add-on.

Description

Use this block to create a task function that spawns as a separate VxWorks^® thread. The task function runs the code of the downstream function-call subsystem.

The VxWorks Task block uses a First In, First Out (FIFO) scheduling algorithm, which executes real-time processes without time slicing. With FIFO scheduling, a higher-priority process preempts a lower-priority process. While the higher-priority process runs, the lower-priority process remains at the top of the list for its priority. When the scheduler blocks the higher-priority processes, the lower-priority process resumes.

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Ports

Output

Port_1 — Function-call control signal

scalar

A function-call control signal that triggers a Function-Call Subsystem block.

Parameters

Task function name — Name of thread on VxWorks

Task0 (default) | character vector

Assign a name to this task. You can enter up to 32 letters and numbers. Do not use standard C reserved characters, such as the / and : characters.

Thread priority (0 to 255) — Linux thread priority

1 (default) | integer in the range [1,99]

When you set Thread scheduling policy to SCHED_FIFO, you can set the priority of the thread from 0 to 255 (low-to-high). Higher-priority tasks can preempt lower-priority tasks.