调度模型组件

创建导出函数、基于速率的模型和分区，以便为代码生成调度模型

调度模型组件进行仿真或与外部调度器集成需要将算法存在于原子 Subsystem 或 Model 模块中。将执行速率指定为周期（调度子系统）或非周期（函数调用子系统）。

分区是作为原子任务独立执行的模型组件。在多任务模型中，分区是从模型组件创建的。使用分区，您可以分离模型中可在调度编辑器工具中显式控制的各部分。

调度编辑器是一个调度工具，它表示模型中称为分区的组件、它们之间的数据连接以及这些分区的顺序。调度编辑器只能用于现有组件，如原子子系统、导出函数和模型模块。调度编辑器是一个交互式工具，通过它可以轻松查看和编辑模型组件的调度情况。

模块

函数调用子系统

Function-Call Subsystem	由外部函数调用输入控制执行的子系统
Function-Call Generator	提供函数调用事件来控制子系统或模型的执行
Function-Call Split	提供联接点以用于拆分函数调用信号线
Function-Call Feedback Latch	Break feedback loop involving data signals between function-call blocks
Trigger	向子系统或模型添加触发器或函数端口

调度的子系统

Subsystem	对各模块进行分组以创建模型层次结构
Inport	为子系统或外部输入创建输入端口

工具

调度编辑器

View and edit the schedule of model components (partitions) （自 R2019a 起）

对象

`simulink.schedule.OrderedSchedule`	Creates an `OrderedSchedule` object containing priority order of the partitions of a model （自 R2020a 起）
`simulink.event.InputWrite`	Trigger event when input port value updates （自 R2022b 起）
`simulink.event.InputWriteTimeout`	Trigger event when input port value does not update within specified time （自 R2022b 起）
`simulink.event.InputWriteLost`	Trigger event when input port value update overwrites unprocessed data （自 R2022b 起）

函数

`Simulink.BlockDiagram.getExecutionOrder`	Open Execution Order pane （自 R2022b 起）
`simulink.schedule.createSchedule`	Create a new schedule using provided schedule and ordering （自 R2020a 起）

主题

导出函数模型

导出函数模型概述
导出函数模型概述和模型编译要求。
Create Export-Function Model
Take the first step for creating independent functions in the generated code.
Test Export-Function Model Simulation Using Input Matrix
Use an input matrix to specify and test function-call event scheduling.
Test Export-Function Model Simulation Using Function-Call Generators
Use multiple Function-Call Generator blocks to test function-call event scheduling.
Test Export-Function Model Simulation Using Stateflow Chart
Use a Stateflow chart to test function-call event scheduling.
Test Export-Function Model Simulation Using Schedule Editor
Use the Schedule Editor to test function-call event scheduling.
Generate Code for Export-Function Model
Generate code for functions that can be integrated with an external scheduler.
Generate Code for Export-Function Model with Rate-Based Model
Generate code from models with function-call and scheduled subsystems.

基于速率的模型

Create Rate-Based Model
Explicitly schedule rates for models and subsystems.
Test Rate-Based Model Simulation Using Function-Call Generators
Simulate rate-based model using test harness and function-call generators.
Generate Code from Rate-Based Model
Generate code from rate-based model, view report, and examine entry points.

执行顺序

控制和显示执行顺序
确定任务中模块之间的执行顺序。
Sorting Rules for Explicitly Scheduled Model Components
Simulink^® determines the execution order for model components, that is, subsystems and referenced models.

使用调度编辑器进行分区操作

Create Partitions
Learn the concept of partitions and how to create them from a model.
Schedule the Partitions
Learn about the order of the partitions and how to edit the schedule.
Generate Code from a Partitioned Model
Learn about the impact of partitioning and editing the schedule on code generation.
Events in Schedule Editor
An event is a construct that represents an action, transition, or condition.

精选示例

Resettable Subsystems

Use two resettable subsystems to implement a ramp signal.

打开模型

Set Priority in Execution Order of Blocks

What happens when blocks are assigned different execution order priorities. The block priority affects the order in which the blocks are executed. You can set the block priority through the Block Properties dialog. The Priority property is available only when the Execution Order property is set to Based on priority. A smaller number indicates a higher priority.

打开模型

Create and Analyze Random Schedules for a Model Using the Schedule Editor API

Uses the Schedule Editor API to perform operations on the schedule. Then it uses a function to generate random schedules and analyze them in Simulation Data Inspector

打开脚本