coder opens the MATLAB^® Coder™ app. To create a project, on the Select Source Files page, provide the entry-point file names. The app creates a project with a default name that is the name of the first entry-point file. To open an existing project, on the app toolbar, click , and then click Open existing project.

If the Embedded Coder^® product is installed, when the app creates a project, it enables Embedded Coder features. When Embedded Coder features are enabled, code generation requires an Embedded Coder license. To disable Embedded Coder features, in the project build settings, on the All Settings tab, under Advanced, set Use Embedded Coder features to No.

coder projectname opens the MATLAB Coder app using the existing project named projectname.prj.

coder -open projectname opens the MATLAB Coder app using the existing project named projectname.prj.

coder -build projectname builds the existing project named projectname.prj.

coder -new projectname opens the MATLAB Coder app creating a project named projectname.prj. If the Embedded Coder product is installed, the app creates the project with Embedded Coder features enabled. To disable these features, in the project build settings, on the All Settings tab, under Advanced, set Use Embedded Coder features to No.

coder -ecoder false -new projectname opens the MATLAB Coder app creating a project named projectname.prj. The app creates the project with Embedded Coder features disabled even if the Embedded Coder product is installed.

coder -tocode projectname -script scriptname converts the existing project named projectname.prj to the equivalent script of MATLAB commands. The script is named scriptname.

• If scriptname exists, coder overwrites it.

• The script reproduces the project build configuration in a configuration object and builds the project. The script:

  • Creates a configuration object named cfg.

  • Defines the variable ARGS for function input types.

  • Defines the variable GLOBALS for global data initial values.

  • Runs the codegen command. When you run the script, the entry-point functions that are arguments to codegen must be on the search path.

• cfg, ARGS, and GLOBALS appear in the base workspace only after you run the script.

If the project includes automated fixed-point conversion, coder generates two scripts:

• A script scriptname that contains the MATLAB commands to:

  • Create a code configuration object that has the same settings as the project.

  • Run the codegen command to convert the fixed-point MATLAB function to a fixed-point C function.

• A script whose file name is a concatenation of the name specified by scriptname and the generated fixed-point file name suffix specified by the project file. If scriptname specifies a file extension, the script file name includes the file extension. For example, if scriptname is myscript.m and the suffix is the default value _fixpt, the script name is myscript_fixpt.m.

  This script contains the MATLAB commands to:

  • Create a floating-point to fixed-point conversion configuration object that has the same fixed-point conversion settings as the project.

  • Run the codegen command to convert the floating-point MATLAB function to a fixed-point MATLAB function.

For a project that includes fixed-point conversion, before converting the project to scripts, complete the Test Numerics step of the fixed-point conversion process.

coder -tocode projectname converts the existing project named projectname.prj to the equivalent script of MATLAB commands. It writes the script to the Command Window.