sim command problem, the model not run for desired time

hi all,

i have problem using sim command,

[Tout,X,Y1,Y2]=sim('mymodel',[realT,[],[realT[u;u]])

Ts=4sec N=2000sec realT=Ts*(1:N)'

the problem here Tout and Y1 Y2 just run for 55 sec and it should be 8000sec if i am right? so something prevent my model to run till the real time,

by the way i change the ode but no clue

any help please thanks

[Azzi Abdelmalek]

What is

RealT[u;u]