Whoa, your living about six mintues into the future (at least according to the "email sent" time stamps ;-). Well, I doubt that this could get the PWM to run anywhere near the khz range (with decent accuracy), even though it's written in ASM. Even if a 4mhz PIC does have the raw speed to do it, I'd need to do a major re-writing of the current code to do it (the program logic would need to be organized more efficiently I think). Can you confirm/enlighten me about the questions I had about the calibration byte (do even the OTP's need to have "individually compiled" code for each part to use the internal OSC?), and where pin1 on the windowed version of the C671 is? Thanks for your help. -----Original Message----- From: David VanHorn To: Bob ; PICLIST@MITVMA.MIT.EDU Date: Sunday, January 14, 2001 5:10 PM Subject: Re: [EE]: [PIC]: Motor PWM question & C671JW part question > >> >>As this circuit can also flow quite a bit of amps (power), another thing I >>should probably ask is: at what frequency (dependant on power) does the >>FCC step >>in and say "NOPE, you can't do that!, at least not without a lot of >>sheilding"? >>I can easily change my current code so that it would run at 5ms PWM cycles, or >>200hz. > >There's no such point. > >Anything with a clock over 9kHz has to be part 15 certed. >Wether you pass or not, depends on how well you design and construct. > >-- >Where's dave? http://www.findu.com/cgi-bin/find.cgi?kc6ete-9 > > > -- http://www.piclist.com hint: The PICList is archived three different ways. See http://www.piclist.com/#archives for details.