if[infoexistsAT91C_MAINOSC_FREQ]{# user set this... let it be.}{# 18.432mhz is a common thing...setAT91C_MAINOSC_FREQ18432000}globalAT91C_MAINOSC_FREQ
if[infoexistsAT91C_SLOWOSC_FREQ]{# user set this... let it be.}{# 32khz is the normsetAT91C_SLOWOSC_FREQ32768}globalAT91C_SLOWOSC_FREQ