Hello guys
 thanks for responding to this mail. i am trying to control 8 sevro with
pic. The position of the sevro will depend on the pause signal.nornmally the
range is between 10ms to 800ms. it is possible to update all the pins with
min error?

thanks
regards
soon lee
----- Original Message -----
From: Russell McMahon <apptech@CLEAR.NET.NZ>
To: <PICLIST@MITVMA.MIT.EDU>
Sent: Monday, February 14, 2000 3:52 AM
Subject: Re: PWM on F84


> >is it possible to use a F84 to program 8 different frequency and duty
cycle
> >PWM wave?? and each of then should be able to be change on the fly
>
>
> More information needed :-)
>
> The answer is Yes, BUT ...
> Answers to the following questions will assist in qualifying the BUT.
>
> - What range of frequencies needed (max and minimum freq)
> - What are max and min duty cycle requirements.
> - What "jitter" can you tolerate
> - What PWM resolution do you want.
> - What sort of user input is required to change the PWM (or is it based on
> other processes)?
> - What else, if anything,  will the PIC be doing.
>
> Basically, the slower you go, the easier it is.
> There will be an upper PWM frequency above which it is essentially
> impossible.
>
>
>
> regards,
>
>
>
>
>
>       Russell McMahon
> _____________________________
>
> From other worlds - www.easttimor.com
>                                 www.sudan.com
>
> What can one man* do?
> Help the hungry at no cost to yourself!
> at  http://www.thehungersite.com/
>
> (* - or woman, child or internet enabled intelligent entity :-))
>
>
> -----Original Message-----
> From: Soon Lee <psln@CYBERWAY.COM.SG>
> To: PICLIST@MITVMA.MIT.EDU <PICLIST@MITVMA.MIT.EDU>
> Date: Monday, 14 February 2000 05:23
> Subject: PWM on F84
>
>
> >Hello people
> >
> >Got a question here hope you can help me
> >
> >is it possible to use a F84 to program 8 different frequency and duty
cycle
> >PWM wave?? and each of then should be able to be change on the fly
> >thanks
> >
> >regards
> >