hi Zuki, Yes the hello-world works fine. I'm quite sure that something goes wrong within the Control_SystemStart. In particular, removing the Int_Init() the Control_SystemStart() ends correctly, the following Fmt_print()s are not truncated and the strongARM doesn't hang. Yes, I think it's an interrupt issue we have to address. The jumpers setting is correct, according to the README.jumpers.txt. Unfortunately our lab is not skilled enough in advanced cs-issues since we are telecom engineers. I don't know howto fix this matter. Again if could give me further advices I would really appreciate your effort. Thanks, Nicola --- Bonelli Nicola bonelli@netserv.iet.unipi.it