Hi !! For the moment the GCC use is the GCC 2.95.2 with the ecos-patch !! So i will try GCC 3 for the eCos toolchain but i need to apply a patch too or not ? if it's yes i need to apply wich patch ? I will have some problems with GCC 3 !? with your opinions it's better to use GCC 2.95.2 or GCC 3 ? Thx a lot for your quicly answer !! best regards, Sébastien.