Model configuration for code generation in Simulink - Practice Problems & Coding Challenges

Challenge - 5 Problems

❓ Predict Output

intermediate

Output of code generation configuration command

What is the output of the following MATLAB command configuring code generation in Simulink?

cfg = coder.config('exe');
cfg.GenerateReport = true;
cfg.TargetLang = 'C';
disp(cfg.GenerateReport)

Simulink

cfg = coder.config('exe');
cfg.GenerateReport = true;
cfg.TargetLang = 'C';
disp(cfg.GenerateReport)

A 0

B false

C 1

D true

💡 Hint

Check the property type of GenerateReport in coder configuration objects.

The GenerateReport property is a logical (boolean) value. Setting it to true and displaying it prints 'true'.

❓ data_output

intermediate

Number of code generation targets available

Using MATLAB's coder API, how many code generation target languages are available by default?

Simulink

langs = coder.targetLangs();
numLangs = numel(langs);
disp(numLangs)

A 4

B 3

C 5

D 6

💡 Hint

Common target languages include C, C++, and others.

MATLAB coder supports 4 main target languages by default: 'C', 'C++', 'CUDA', and 'HDL'.

🔧 Debug

advanced

Identify the error in code generation configuration

What error will occur when running this code snippet configuring Simulink code generation?

cfg = coder.config('dll');
cfg.TargetLang = 'Python';

Simulink

cfg = coder.config('dll');
cfg.TargetLang = 'Python';

A Error: Invalid target language specified

B No error, configuration accepted

C SyntaxError: invalid syntax

D TypeError: unsupported operand type

💡 Hint

Check the allowed values for TargetLang property.

The TargetLang property only accepts specific strings like 'C' or 'C++'. 'Python' is not a valid target language and causes an error.

🧠 Conceptual

advanced

Effect of setting 'GenerateReport' to false

What is the effect of setting the 'GenerateReport' property to false in a Simulink code generation configuration?

A The generated code will be optimized for speed

B No code generation report will be created after build

C Code generation will fail due to missing report

D The build process will run in debug mode

💡 Hint

Think about what a report is used for after code generation.

Setting GenerateReport to false disables creation of the code generation report, but does not affect code generation itself.

🚀 Application

expert

Choosing the correct configuration for embedded C code generation

You want to generate optimized embedded C code from a Simulink model for deployment on a microcontroller. Which configuration object should you use and what key property must be set to ensure the code is suitable for embedded deployment?

A Use cfg = coder.config('lib'); set cfg.TargetLang = 'C'; set cfg.EnableCustomCode = true;

B Use cfg = coder.config('exe'); set cfg.TargetLang = 'C'; set cfg.EnableVariableSizing = false;

C Use cfg = coder.config('dll'); set cfg.TargetLang = 'C'; set cfg.EnableVariableSizing = false;

D Use cfg = coder.config('lib'); set cfg.TargetLang = 'C++'; set cfg.GenerateReport = true;

💡 Hint

Embedded code often requires fixed-size variables and a dynamic library format.

For embedded deployment, generating a DLL with fixed-size variables (EnableVariableSizing = false) ensures predictable memory usage and compatibility.