Emin_ucer asked . 2021-10-21

How can I call (a lot of) user-defined functions in Simulink?

Functions\fnc_1.m
Functions\fnc_2.m
....
Functions\fnc_416.m

I need to call all of these functions in a loop in a Matlab function block in Simulink, e.g.

for i=1:416
    out = fnc_i(some_arguments);
end

I tried using coder.extrinsic but it can only work if the function is located in the current folder and its name is explicity defined like

coder.extrinsic('Functions\fnc_52');
out = fnc_52(some_arguments);

for i=1:416
    filename = strcat(char(39),'Functions\fnc_',num2str(i),char(39));
    eval(strcat('coder.extrinsic(',filename,');'));
    out = eval(strcat('fnc_',num2str(i),'(some_arguments);'));
end

function y = MatlabFunctionBlock(x)
    % We need these two functions, so add them as extrinsic functions 
    coder.extrinsic('strcat');
    coder.extrinsic('eval');
    
    y = zeros(416,1);
    
    for i = 1:416
        f  = eval(strcat('@(x) fnc_',num2str(i),'(x)'));
        y(i) = f(x);
    end
end

function y = MatlabFunctionBlock(x)
    
    y = zeros(416,1);
    
    for i = 1:416
        f = sprintf('fnc_%d',i);
        y(i) = feval(f,X);;
    end
end

simulink , matlab function , code generation , coder , user-defined funct...