Passing cells array to inport in Simulink

Hi,

I want to pass vectors from a MAT-File, as input port in Simulink, using rapid simulation (rsim in simulink coder).

For exemple, if the dimension of Input1 is [2 1], I'd like to pass a [2 1] size vector at each time step.

I thought to use this kind of code with cell structure

if true
t= [1;2];
Input1.time = t;
Input1.signals.values(:,1) = {[1;1];[2;2]}
end

but there is a Data Type error when building, probably because cells are not accepted.

Does anybody have any idea to deal with it ?

Thanks