The osc setting isn't set under normal program control. So W-reg has nothing to do with this. This config setting should be set by the programmer at the same time as your program is downloaded. I don't know your setup, but check that there isn't some setting that disables the download of the config bits. Jan-Erik Soderholm. CaptMasterX@CS.COM wrote: >Does anyone know exactly how to enable the internal clock? I read how to do >it in the data sheet...the register is in PCON, but I obviously can't load w >with the right bits and save it in PCON b/c in order to execute the >instruction I'd need the clock I don't have. -- http://www.piclist.com hint: To leave the PICList mailto:piclist-unsubscribe-request@mitvma.mit.edu