dcf.c:
- removed inline definition of dcf variable, which is not allowed on many c compilers.
- removed SaveNode() call using ifdef, because not all canopen devices support this feature.
Later on it should be possible to enable this for each dcf entry using objdictedit.
- fixed bug when dereferencing an dcf entry from the object dictionary.

Ici, on met ce qui est spécifique à la carte et au type de processeur :
l'organisation de la mémoire