Hi again On a whim, I decided to add some stuff into the program to turn an led on and off whenever the program loops. The LED takes about 30 secs to toggle, when before it took about half a second. Shouldn't it be a lot faster, because now I'm (supposedly) using an 8mhz internal osc, instead of the external 3MHz osc? On 5/2/05, Olin Lathrop wrote: > Byron A Jeff wrote: > >> I doubt it. Check the datasheet, if it promises 1% accuracy it is OK. > >> But it will be much batter than an external RC oscillator. > > > > Not a chance. > > You simply can't do reliable serial at any resonable bit rate using RC. > > Why do you say that? 1% is 1% regardless of how it's derived, and 1% is > sufficient for reliable communcation with a PC. > > > ***************************************************************** > Embed Inc, embedded system specialists in Littleton Massachusetts > (978) 742-9014, http://www.embedinc.com > -- > http://www.piclist.com PIC/SX FAQ & list archive > View/change your membership options at > http://mailman.mit.edu/mailman/listinfo/piclist > -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist