PRBS input to an ODE system

Hi,I've generated a PRBS for an inlet flowrate with this code:

ns = 110; %s
ts = 30;  %s
F = idinput(round(ns),'prbs',[0 1],[9 11]);
FinPRBS = iddata ([],F,ts);

Now, I want to pass this input to an ODE system like this:

function dXdt = systemresponse(~,X)   
  global A res F 

      Fo1   = (X(1)-X(2))/res(1);
      Fi2   = Fo1;
      Fo2   = X(2)/res(2);

      % The differential system is set up:
      dXdt(1) = 1/A(1)*(F - Fo1);    
      dXdt(2) = 1/A(2)*(Fi2 - Fo2);    
      dXdt = dXdt';    
  end

How can I do this? Thank you!