code generation about Simulink function

hello, when generated code from the simulink function, the name of Model Step Funciton seems strange, how can i change it to fun1 in this case. refer to following picture for details.

Answer 1

[Animesh]

Hi @wenchao zhang,

The following threads might be of help:

https://www.mathworks.com/matlabcentral/answers/403916

https://www.mathworks.com/matlabcentral/answers/452570

[wenchao zhang]

hi,Animesh,seems i cant set this simulink function to atomic unit, strange.

[wenchao zhang]

i find the solution: