Hi Olin. Olin Lathrop wrote: > > > 16f877 running 10bit PWM. Output is tied to a 10K and .01uF cap. > > > > With the registers holding a static value, would you expect the output > > voltage to be stable? Its acting as if the lsb's are toggling. > > The filter rolloff is about 1.6KHz, so a little ripple should be expected > depending on what your PWM frequency is. How 1.6KHz was obtained from 10K and 0.01uF ? ( what the formula ) WBR Dmitry. -- http://www.piclist.com hint: To leave the PICList mailto:piclist-unsubscribe-request@mitvma.mit.edu