On Wed, Mar 17, 2010 at 09:49:15AM +0000, jrjr wrote: > > Because I want to use LED controlled by OR3 to debug the code,so I don't want to clear OR0. It's temporary; you can use bank 3 after BRn/ORn are set to their final values (confusingly named PRELIM) in cpu_init_f(). -Scott