MATLAB: Does “rtwbuild” not generate the xpckrnl.rtb and .mldatx files when I build a Simulink Real-Time application for Standalone Mode in R2019b and later

slrtstandalonexpckrnl.rtb

We are using Simulink Real-Time in Standalone Mode , i.e., we run the real-time application on the target computer independent of the development computer.
In previous MATLAB releases, I selected Standalone Mode in Simulink Real-Time Explorer, and then used the command "rtwbuild" to created the real-time application (xpckrnl.rtb and *.mldatx).
Now we have upgraded to R2019b, but the "rtwbuild" command does not seem to generate these files anymore. It works if I click the "Build Application" button in the Simulink UI, but how can I create the .rtb and .mldatx files programmatically using R2019b or later?

Best Answer

This is a documented change in behavior. See the following R2019b release note on "Standalone boot mode process":
https://www.mathworks.com/help/releases/R2019b/xpc/release-notes.html?rntext=createStandAlone&s_tid=doc_srchtitle
To build a real-time application for Standalone boot mode in R2019b and later, use these commands:
rtwbuild('model_name');
tg = slrt('target_name');
createStandAlone(tg,'model_name');
This process generates a "model_name_slrt_emb" folder that contains the generated files for standalone boot. The generated files are the same as in previous releases.
For more information, see the "createStandAlone" function:
https://www.mathworks.com/help/releases/R2019b/xpc/api/createstandalone.html
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