Unit Delay Initialization C Code Generation

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Jack
Jack on 14 Mar 2024
Moved: Fangjun Jiang on 28 Mar 2024 at 12:07
I have a model in which I am generating C code for. This model has a Unit Delay block in with an intial condition set to 0. When I generate the C code, where the intialization step would usually occur for a non zero Initial condition, No code is generated but I assume somewhere it must be intialising this variable. Where is this done instead and why does it change.
Thanks

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Fangjun Jiang
Fangjun Jiang on 18 Mar 2024
Moved: Fangjun Jiang on 28 Mar 2024 at 12:04
You could experiment. Set the initial value to be zero and non-zero to see where the code is located. Note that in C code, the initial value for a variable is zero by default. Or it can be initialized when the variable is declared, such as
int myNum = 15;
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Fangjun Jiang
Fangjun Jiang on 18 Mar 2024
Moved: Fangjun Jiang on 28 Mar 2024 at 12:06
no. There should be a generated C code variable that corresponds to the output of the Unit Delay block. Search the declaration of that variable in the C code. You can turn on traceability to help find it.
https://www.mathworks.com/help/releases/R2019b/rtw/ref/code-to-model.html
Jack
Jack on 18 Mar 2024
Moved: Fangjun Jiang on 28 Mar 2024 at 12:07
Okay my mistake. I have tried the tracebility tool but it doesn't seem to help.

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