MATLAB: Does the model, which contains a MinMax block, throw an error during code generation with Real-Time Workshop 5.1(R13SP1)

blockcodeerrorfailgen"minmaxsimulink coderwrong

For example, I receive the following error:

 Error using ==> make_rtw                                                   
 Error using ==> tlc_c (InvokeTLC)                                          
 Error:  "MATHLIB: Call to function max requires two nonempty inputs."

Best Answer

This bug has been fixed for Release 14 (R14). For previous releases, please read below for any possible workarounds:

This has been verified as a bug in Real-Time Workshop 5.1 (R13SP1). Code generation can fail under certain conditions for the Relational Operator and MinMax blocks when expression folding is enabled and input to the Relational Operator block comes from a MinMax block.

Currently, to work around this issue, disable 'expression folding'.

Related Solutions

MATLAB: Does having a comment with “%%” in a chart in Stateflow result in incorrect code generation using Real-Time Workshop

This bug has been fixed for Release 14 (R14). For previous releases, please read below for any possible workarounds:

This has been verified as a bug in Stateflow in the way that Stateflow handles generation of TLC files for Real-Time Workshop.

Currently, to work around this issue, try to avoid the following type of usage of the "%%" characters:

 /* user comment containing %%*/
 {
 strcpy(str,"a = %%");
 }

MATLAB: Am I unable to generate code for the Real-Time Workshop Embedded Coder (ERT Target) for some Communications Blockset blocks

This enhancement has been incorporated in Release 14 Service Pack 3 (R14SP3). For previous product releases, read below for any possible workarounds:

The ability to do generate embedded code for communications blocks that are implemented as S-functions is not available in the Communications Blockset. This is true for any blocks implemented as a subsystem that have an underlying S-function. You can look under the mask of these blocks to see how they are implemented.

Many of the blocks in the Communications Blockset are not intended to generate embedded code, and thus have not been inlined. This means that no TLC-file is available to generate the embedded code for those blocks. Blocks which are instead built from other Simulink blocks or S-functions that have been inlined can be used with the ERT target.

Currently, to work around this problem, you can use the Generic Real-Time Target (GRT).

You should also check the "Known Software and Documentation Problems" section of the release notes for the Communications Blockset. Some of the Communications Blockset blocks are not compatible with Real-Time Workshop at all, and thus can not be used to generate code for any targets.

Best Answer

Related Solutions

MATLAB: Does having a comment with “%%” in a chart in Stateflow result in incorrect code generation using Real-Time Workshop

MATLAB: Am I unable to generate code for the Real-Time Workshop Embedded Coder (ERT Target) for some Communications Blockset blocks

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