YhLu <YhLu at tyan.com> writes: > in reset16.lds > > _ROMTOP = (_start >= 0xffff0000) ? 0xfffffff0 : 0xffffffff8; > > > 0xffffffff8 ????? And from the line above. /* Trigger an error if I have an unuseable start address */ That is exactly what happens correct? 0xfffffff8 does not work does it? Show me a less confusing way and I will use it. Eric