How do I get rid of MISRA 6.3 violations during static code analysis of code generated by Embedded Coder in MATLAB R2016b?

The code generated with Embedded Coder is not MISRA Compliant, and that the code analysis tool you use warns you about the typedefs that are not compliant with MISRA 6.3. 

The MISRA 6.3 rule on the following documentation page suggests that 'typedefs' indicating size and signedness should be used in place of the basic types.

Run the following command to get the documentation page in MATLAB R2018b.

web(fullfile(docroot, 'codeprover/ug/misra-c-coding-rules.html'))

However, generated code contains "real_T", "uint_T", instead of "real64_T".

How do I get rid of MISRA 6.3 violations during static code analysis of code generated by Embedded Coder?

Answer 1

[MathWorks Support Team]

This is a known limitation with Embedded Coder. To work around the issue, you can use Data Type Replacement to replace the violating built-in data types with compatible ones. Please see more on replacing built-in data types on the following documentation page:

This is a known limitation with Embedded Coder. To work around the issue, you can use Data Type Replacement to replace the non-compliant built-in data types with compatible ones. For more information on replacing built-in data types, run the following command in the command window of MATLAB R2016b.

web(fullfile(docroot, 'ecoder/ug/data-type-replacement.html'))

For latest release documentation refer to the following link.

https://www.mathworks.com/help/ecoder/ref/datatypereplacement.html?searchHighlight=data%20type%20replacement&s_tid=srchtitle_data%20type%20replacement_2

Note that you may need to use a "Simulink.NumericType" object to re-define replacement names for some of these data types. To know more, run the following command in the command window of MATLAB R2018b and refer the documentation page.

web(fullfile(docroot, 'simulink/slref/simulink.numerictype.html'))

Please follow the below link to search for the required information regarding the current release:

https://www.mathworks.com/help/