设备驱动模块

创建设备驱动模块以访问硬件板的特定功能

设备驱动模块是一种特殊形式的 MATLAB System 模块，当部署到 Raspberry Pi^® 硬件板时，它会生成自定义 C/C++ 设备驱动代码。通过设备驱动模块可轻松访问硬件板功能，例如访问默认情况下 Simulink^® Support Package for Raspberry Pi Hardware 中不包含的通信协议或硬件库。

您可以从 System object™ 模板开发设备驱动模块，然后与其他用户共享完成的模块。

主题

Prerequisites for Developing Device Driver Blocks
Learn the system requirements and recommended skills to develop device driver blocks for Raspberry Pi hardware boards.
Structure of Device Driver System Object
Understand the concepts and operation of device driver blocks implemented using a System object.
使用设备驱动模块进行仿真
为设备驱动模块选择并实现数据仿真模式。
Sharing Device Driver Blocks with Other Users
Package and distribute your device driver blocks.

创建 Digital Write 模块

Create a Digital Write Block

Create a Digital Write block using a System object.

步骤 1: Create a Project Folder
步骤 2: Write the Hardware Specific C/C++ Code
步骤 3: Select a System Object Template
步骤 4: Specify the Initialization, Output, and Termination Behavior
步骤 5: Test System Object on MATLAB Command Line
步骤 6: Create the MATLAB System Block
步骤 7: Generate Code and Deploy the Model to the Hardware

创建 Digital Read 模块

Create a Digital Read Block

Create a Digital Read block using a System object.

步骤 1: Create a Project Folder
步骤 2: Write the Hardware Specific C/C++ Code
步骤 3: Select System Object Template
步骤 4: Specify the Initialization, Output, and Termination
步骤 5: Set Output Port Properties
步骤 6: Test System Object

为设备驱动模块创建模块封装

模块封装

为设备驱动模块创建模块封装。

步骤 1: Add Description for Users
步骤 2: Add Pin Number Property
步骤 3: Add Push Button to View Pin Map