Select a System Object Template

Step 3 of 7 in Create a Digital Write Block

System objects are used to define the behavior of device driver blocks. Follow these steps to create your own System object™ by modifying the template System object.

1. In the MATLAB^® Editor, open the template system object class file, Sink.m.

2. Save a copy of the class file and rename it DigitalWrite.m.

3. Open DigitalWrite.m and change the class name to DigitalWrite.

   classdef DigitalWrite < matlab.System ...
           & coder.ExternalDependency ...
           & matlab.system.mixin.Propagates ...
           & matlab.system.mixin.CustomIcon
       
       ...
       end

4. Change the name of the constructor method to DigitalWrite.

   methods
           % Constructor
           function obj = DigitalWrite(varargin)
               % Support name-value pair arguments when constructing the object.
               setProperties(obj,nargin,varargin{:});
           end
       end
   

   Note

   A MATLAB class requires the class name, constructor, and file to be identical.

5. Save the changes to DigitalWrite.m.

In the next section, you will Specify the Initialization, Output, and Termination Behavior of the System object.