Open code generation example models from the documentation or command line

The example models included in Simulink^® Coder™ and Embedded Coder^® show you how to generate code for different use cases and meet different code generation goals. Use openExample to open example models from the command line. For example, to open the CodeBuildModel model, enter:

openExample('CodeBuildModel')

Before R2022b, the code generation example models were named rtwdemo_<model> and were available on the MATLAB^® path. From R2022b to R2023b, the example models were removed from the path and renamed according to these tables. To find models and open examples, you can use this list or use the functions modelfinder and openExample.

Models Renamed in R2022b

These models are available with Simulink Coder and were renamed in R2022b.

R2022a model name	R2022b and later model name	Example
`rtwdemo_col_dlut3d_selplane`	`ColumnDLUT3DSelectPlane`	Direct Lookup Table Algorithm for Row-Major Array Layout
`rtwdemo_col_dlut3d_selvector`	`ColumnDLUT3DSelectVector`
`rtwdemo_row_dlut3d_selplane`	`RowDLUT3DSelectPlane`
`rtwdemo_row_dlut3d_selvector`	`RowDLUT3DSelectVector`
`rtwdemo_condinput`	`ConditionalInput`	Use Conditional Input Branch Execution
`rtwdemo_deadpathElim`	`DeadPathElimination`	Eliminate Dead Code Paths in Generated Code
`rtwdemo_foreachreuse`	`ForEachReuse`	Generate Reusable Code from For Each Subsystems
`rtwdemo_row_interpalg`	`RowInterpolationAlgorithm`	Interpolation Algorithm for Row-Major Array Layout
`rtwdemo_row_lut2d`	`RowLUT2D`	Interpolation Algorithm for Row-Major Array Layout
`rtwdemo_mdlreftop`	`TopModelCode`	File Packaging for Models (Code and Data)
`rtwdemo_mdlrefbot`	`ReferenceModelCode`	File Packaging for Models (Code and Data)

These models are available with Embedded Coder and were renamed in R2022b.

R2022a model name	R2022b and later model name	Example
`rtwdemo_concurrent_execution`	`MulticoreConcurrentTasking`	Model Multicore Concurrent Tasking Application
`rtwdemo_cppclass`	`CppClassRateBased`	Configure C++ Class Interface for Rate-Based Models
`rtwdemo_cppclass_expfcn`	`CppClassExportFunction`	Configure C++ Class Interface for Export-Function Models
`rtwdemo_cppclass_workflow`	`CppClassWorkflowKeyIgnition`	Generate C++ Code from Simulink Models
`rtwdemo_explicitinvocation_atomicsubsys`	`AtomicSubsystem`	Generate Code for Atomic Subsystems
`rtwdemo_multirate_multitasking`	`MultirateMultitasking`	Model Single-Core, Rate-Monotonic Multitasking Application
`rtwdemo_multirate_singletasking`	`MultirateSingleTasking`	Model Single-Core, Single-Tasking Application
`rtwdemo_sil_block`	`SILBlock`	Test Generated Code with SIL and PIL Simulations
`rtwdemo_sil_modelblock`	`SILModelBlock`
`rtwdemo_sil_counter`	`SILCounter`
`rtwdemo_sil_topmodel`	`SILTopModel`
`rtwdemo_udt`	`UserDefinedDataTypes`	Define Abstract Numeric Types and Rename Types

Models Renamed in R2023a

These models are available with Simulink Coder and were renamed in R2023a.

R2022b model name	R2023a and later model name	Example
`rtwdemo_asap2`	`ASAP2Demo`	Create a Host-Based ASAM-ASAP2 Data Definition File for Data Measurement and Calibration
`rtwdemo_asap2_mdlref`	`ASAP2DemoModelRef`	Create a Host-Based ASAM-ASAP2 Data Definition File for Data Measurement and Calibration
`rtwdemo_col_interpselsubtable`	`SubtableInterpolationCol`	Interpolation with Subtable Selection Algorithm for Row-Major Array Layout
`rtwdemo_float_mul_for_net_slope_correction`	`FloatMultiplicationNetSlope`	Floating-Point Multiplication to Handle a Net Slope Correction
`rtwdemo_forloop`	`ForLoopConstruct`	Optimize Generated Code by Combining Multiple for Constructs
`rtwdemo_inline_invariant_signals`	`InvariantSignalsInline`	Optimize Generated Code Using Inline Invariant Signals
`rtwdemo_row_interpselsubtable`	`SubtableInterpolationRow`	Interpolation with Subtable Selection Algorithm for Row-Major Array Layout
`rtwdemo_row_lutcol2row_workflow`	`RowLUTColToRow`	Column-Major Layout to Row-Major Layout Conversion of Models with Lookup Table Blocks
`rtwdemo_row_lutcol2row_workflow_rowrow`	`RowLUTColToRowPreconfigured`	Column-Major Layout to Row-Major Layout Conversion of Models with Lookup Table Blocks
`rtwdemo_secondOrderSystem`	`SecondOrderSystem`	Generate C Code for a Model
`rtwdemo_slexprfold`	`FoldBlockComputations`	Fold Expressions

These models are available with Embedded Coder and were renamed in R2023a.

R2022b model name	R2023a and later model name	Example
`rtwdemo_accel_send`	`AccelerometerSendMessages`	Model Message-Based Communication Integrated with POSIX Message Queues
`rtwdemo_caller`	`SimulinkFunctionCaller`	Generate Code for Simulink Function and Function Caller
`rtwdemo_differentsizereuse`	`DifferentSizeReuse`	Reuse Buffers of Different Sizes and Dimensions
`rtwdemo_export_functions`	`SimulinkFunctionsTestHarness`	Generate Code for Simulink Function and Function Caller
`rtwdemo_functions`	`SimulinkFunctions`	Generate Code for Simulink Function and Function Caller
`rtwdemo_getset_matrix`	`GetSetMatrix`	Use GetSet with Matrix Data
`rtwdemo_getset_scalar`	`GetSetScalar`	Access Legacy Data Using Get and Set Functions
`rtwdemo_getset_struct`	`GetSetStruct`	Use GetSet with Structured Data
`rtwdemo_getset_vector`	`GetSetVector`	Use GetSet with Vector Data
`rtwdemo_gps_send`	`GPSSendMessages`	Model Message-Based Communication Integrated with POSIX Message Queues
`rtwdemo_internal_init`	`InternalZeroInitialization`	Remove Zero Initialization Code for Internal Data
`rtwdemo_label_guided_reuse`	`SignalLabelReuse`	Optimize Generated Code by Using Signal Labels to Guide Buffer Reuse
`rtwdemo_logicalAsBoolean`	`LogicalAsBoolean`	Optimize Generated Code Using Boolean Data for Logical Signals
`rtwdemo_minmax`	`MinMaxOptimization`	Optimize Generated Code Using Minimum and Maximum Values
`rtwdemo_optimize_global`	`MinimizeGlobalDataAccess`	Minimize Global Data Access
`rtwdemo_optimize_global_ebf`	`UseGlobalsForTemporaryResults`	Use Global to Hold Temporary Results
`rtwdemo_optionalDisableResetFunc_bot`	`DisableResetFunctionBottom`	Remove Reset and Disable Functions from the Generated Code
`rtwdemo_optionalDisableResetFunc_top`	`DisableResetFunctionTop`	Remove Reset and Disable Functions from the Generated Code
`rtwdemo_pack_boolean`	`PackBooleanData`	Optimize Generated Code by Packing Boolean Data into Bitfields
`rtwdemo_parentheses`	`ParenthesizationStyle`	Control Use of Parentheses
`rtwdemo_pos_estimate`	`PositionEstimateMessages`	Model Message-Based Communication Integrated with POSIX Message Queues
`rtwdemo_preservedimensions`	`PreserveArrayDims`	Preserve Dimensions of Multidimensional Arrays in Generated Code
`rtwdemo_preservedimensions_slbus`	`PreserveBusDims`	Preserve Dimensions of Bus Elements in Generated Code
`rtwdemo_reusable`	`Reusable`	Generate Reentrant Code from Top Models
`rtwdemo_reusable_csc`	`ReusableStorageClass`	Specify Buffer Reuse for Signals in a Path
`rtwdemo_reuse_global`	`GlobalReuse`	Reuse Global Block Outputs in the Generated Code
`rtwdemo_roll`	`RollAxisAutopilot`	Generate C Code from Simulink Models
`rtwdemo_roll_harness`	`RollAxisAutopilotHarness`	Generate C Code from Simulink Models
`rtwdemo_rootlevel_zero_initialization`	`RootZeroInitialization`	Remove Initialization Code from Root-Level Inports and Outports Set to Zero
`rtwdemo_rsim_param_tuning`	`RsimParamTuning`	Tune Parameters Interactively During Rapid Simulation
`rtwdemo_unicode`	`MixedLanguagesAndLocales`	Internationalization and Code Generation

Models Renamed in R2023b

These models are available with Simulink Coder and were renamed in R2023b.

R2023a model name	R2023b and later model name	Example
`rtwdemo_atomic`	`SubsystemAtomic`	Generate Subsystem Code as Separate Function and Files
`rtwdemo_codebuild`	`CodeBuildModel`	Compile Code in Another Development Environment
`rtwdemo_codebuild_ref`	`CodeBuildRefModel`	Compile Code in Another Development Environment
`rtwdemo_comments`	`CustomCodeComments`	Get Code Description of Generated Code
`rtwdemo_configrpinterface`	`ConfigurationRapidPrototypingInterface`	Access Signal, State, and Parameter Data During Execution
`rtwdemo_counter`	`CounterModel`	Register Custom Toolchain and Build Executable
`rtwdemo_dynamicio`	`DynamicIO`	Share Data Between Code Generated from Simulink, Stateflow, and MATLAB
`rtwdemo_fixpt1`	`FixedPointCodeGeneration`	Optimize Generated Code Using Fixed-Point Data with Simulink, Stateflow, and MATLAB
`rtwdemo_irtshared`	`StartupResetShutdownShared`	Startup, Reset, and Shutdown Function Interfaces
`rtwdemo_memset`	`MemsetOptimization`	Optimize Generated Code Using memset Function
`rtwdemo_mrmtbb`	`MultirateMultitaskingBareBoard`	Analyze Generated Data Code Interface Report
`rtwdemo_mrstbb`	`MultirateSingletaskingBareBoard`	Time-Based Scheduling Example Models
`rtwdemo_parabuild_a_1`	`ParallelBuildA1`	Reduce Build Time for Referenced Models by Using Parallel Builds
`rtwdemo_parabuild_b_1`	`ParallelBuildB1`
`rtwdemo_parabuild_b_2`	`ParallelBuildB2`
`rtwdemo_parabuild_b_3`	`ParallelBuildB3`
`rtwdemo_paraminline`	`InlineBlockParameters`	Inline Numeric Values of Block Parameters
`rtwdemo_ratetrans`	`MultirateMultitaskingRateTransitions`	Separate Rate Transition Block Code and Data from Algorithm Code and Data
`rtwdemo_sfcn_rls`	`SFunctionForCodeReuse`	S-Functions for Code Reuse
`rtwdemo_sfcn_rls_lib`	`SFunctionForCodeReuseLibrary`	S-Functions for Code Reuse
`rtwdemo_srbb`	`SingleRateBareBoard`	Single-Rate Modeling (Bare Board, No OS)
`rtwdemo_ssreuse`	`GeneratedCodeFunctionReuse`	Function Reuse in Generated Code
`rtwdemo_targetsettings`	`TargetSettings`	Configure Run-Time Environment Options
`rtwdemo_throttlecntrl`	`ThrottleControl`	Configure Model, Generate Code, and Simulate
`rtwdemo_throttlecntrl_testharness`	`ThrottleControlTestHarness`	Configure Model, Generate Code, and Simulate
`rtwdemo_throttlecntrl_datainterface`	`ThrottleControlDataInterface`	Configure Data Interface
`rtwdemo_throttlecntrl_extfunccall`	`ThrottleControlExtFuncCall`	Call External C Functions
`rtwdemo_underspecified_datatype`	`UnderspecifiedDataType`	Use single Data Type as Default for Underspecified Types

These models are available with Embedded Coder and were renamed in R2023b.

R2023a model name	R2023b and later model name	Example
`rtwdemo_comp`	`ClientServerCommunication`	Generate Reentrant Code from Simulink Function Blocks
`rtwdemo_comp_cpp`	`CppComponent`	Generate Reentrant Code from Simulink Function Blocks
`rtwdemo_configinterface`	`ConfigurationInterface`	Create Data Interface Configuration Programmatically
`rtwdemo_controlflow_opt`	`ControlFlowOptimization`	Optimize Generated Code by Consolidating Redundant If-Else Statements
`rtwdemo_cpp`	`CppSFunctionExternalCode`	Integrate External C++ Code into a Model Using S-Functions
`rtwdemo_cppclass_export_functions`	`CppClassFunctionsHarness`	Generate C++ Function and Class Code for Export-Function Model
`rtwdemo_cppclass_functions`	`CppClassFunctions`	Generate C++ Function and Class Code for Export-Function Model
`rtwdemo_crossrelease_counter`	`CrossReleaseCounter`	Generate Component Source Code for Export to External Code Base
`rtwdemo_crossrelease_integration`	`CrossReleaseIntegration`
`rtwdemo_crossrelease_protected_model`	`CrossReleaseProtectedModel`	Use Protected Models from Previous Releases to Perform SIL Testing and Generate Code
`rtwdemo_crossrelease_unprotected_counter`	`CrossReleaseUnprotectedCounter`
`rtwdemo_cscpredef`	`CustomStorageClasses`	Create Storage Classes by Using the Custom Storage Class Designer
`rtwdemo_dimension_variants`	`DimensionVariants`	Implement Symbolic Dimensions for Array Sizes in Generated Code
`rtwdemo_fileprocess`	`CustomFileProcess`	Custom File Processing (CFP) Templates
`rtwdemo_fixptdiv`	`FixedPointOperations`	Optimize Generated Code for Fixed-Point Data Operations
`rtwdemo_func_dinteg`	`DiscreteIntegratorFunction`	Generate Reentrant Code from Simulink Function Blocks
`rtwdemo_func_dinteg_cpp`	`FuncDintegCPP`	Generate Reentrant Code from Simulink Function Blocks
`rtwdemo_libcodegen_lib`	`LibraryCodeGenerationLibrary`	Library-Based Code Generation for Reusable Library Subsystems
`rtwdemo_libcodegen_mdl`	`LibraryCodeGeneration`
`rtwdemo_localizable_csc`	`LocalizableStorageClass`	Generate Local Variables with Localizable Storage Class
`rtwdemo_mrmtos`	`MultirateMultitaskingOS`	Time-Based Scheduling Example Models
`rtwdemo_namerules`	`NameRules`	Apply Custom Naming Conventions to Identifiers
`rtwdemo_nzcheck`	`DivisionExceptions`	Remove Code That Guards Against Division Exceptions for Integers and Fixed-Point Data
`rtwdemo_pmsmfoc`	`PMSMController`	Field-Oriented Control of Permanent Magnet Synchronous Machine
`rtwdemo_pmsmfoc_system`	`PMSMSystem`
`rtwdemo_preprocessor`	`PreprocessorConditionalsUsingVariantModel`	Generate Code for Model References Connected to Variant Blocks
`rtwdemo_linl`	`Variants_linl`
`rtwdemo_linr`	`Variants_linr`
`rtwdemo_nlinl`	`Variants_nlinl`
`rtwdemo_nlinr`	`Variants_nlinr`
`rtwdemo_preprocessor_subsys`	`PreprocessorConditionalsUsingVariantSubsystem`	Compile Code Conditionally for Variations of Component Represented Using Variant Block
`rtwdemo_rtwecintro`	`EmbeddedCoderIntro`	Generate Code Using Embedded Coder
`rtwdemo_sfcpp`	`CppStateflowExternalCode`	Insert External C++ Code into Stateflow Charts for Code Generation
`rtwdemo_shrlib`	`SharedLibraryCode`	Interface to a Development Computer Simulator by Using a Shared Library
`rtwdemo_symbols`	`IdentifierFormatting`	Control Formatting of Identifiers
`rtwdemo_vxworks`	`OSIntegration`	Deploy Generated Component Software to Application Target Platforms