Support variable size arrays with embedded coder

Hi, is there a way in which a calibratable arrays can be supported in Simulink. For example, we want to develop a generic model that can work with a different number of sensor inputs depending on the hardware configuration without having to change the model. I tried using selector block and a port to specify which index to use, this works in simulation but fails during code generation as variable size signals are not supported. Thank you.

Answer 1

[dpb]

I don't know Simulink, but a search indicated that it is possible to use a variable sized signal <Variable Size Signal Basics> and set a maximum allowable number. The code is then generated based on memory allocation to that max model size but the unused signals in a given simulation have zer length.

Apparently there is a configuration parameter for the code generator to handle it...

• The signals carry a maximum dimension but pass a runtime signal containing the actual size being used.
• How to configure: Open your Model Configuration Parameters → Code Generation → Interface, and set Support: variable-size signals (Embedded Coder) to On.