What PWM frequency are you working at? What freq. is acceptable to drive
such a motor?
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From: David W. Duley <DREITEK@AOL.COM>
To: PICLIST@MITVMA.MIT.EDU
Date: 2 May 1997 5:44 AM
Subject: Re: Control a Motor

>I am not sure that I agree.  I use PWM on the 16C84 all the time.  It was
>quite easy.  I use a simple interupt routine.  On one version I even
handle
>RS232 and control the PWM using a simple serial command set.
>I am controlling airflow, pumps and even an H bridge to give me a
>bi-directional Dc motor.
>What else do you want to use the RTC for?  Could you also handle this
>function inside the interupt routine?
>
>Dave Duley
>V.P. DreiTek Inc.
>