How to initialize static variable in C caller blocks during simulation
显示 更早的评论
float func_1(void)
{
static float a = 0;
a = a +1;
return a;
}
Simulation setting Fixed step size = 0.1s. Run simulation for 1 second:
- First simulation: a = 10
- Second simulation: a = 20
- Third simulation: a = 30
It seems that re-run simulation after ending one simulation, the "a" wil stay same as the value of the last simulation.
I understnad for global variables we can write a initilization function to initialize it. How about the static variable within the function?
采纳的回答
Angelo Yeo
2022-12-5
编辑：Angelo Yeo
2023-12-22
The "C Caller" block creates temporal C and header files, compiles these and creates .dll files under the slprj folder. These .dll files hold values of static variables between simulations.
Can you go to the Model Explorer and open "Callbacks" for the model? And, in "InitFcn", please type in
clear mex
This will solve the issue with initializing static variables in C Caller blocks.
Please check attached file for a specific example.
2 个评论
Aitor Juanicorena
2023-5-9
Hi!
It worked for me also. Thanks a lot!
Lucian
2024-1-22
Thanks a lot Angelo, worked for me too
更多回答（0 个）
类别
在 帮助中心 和 File Exchange 中查找有关 Simulink Functions 的更多信息
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!
Translated by 
