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PWM Question

 
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MexiCub125



Joined: 23 Oct 2011
Posts: 3

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PWM Question
PostPosted: Wed Nov 09, 2011 9:31 pm     Reply with quote
Hi,
I am using a PIC16F887 for PWM to a Standard Servo. I wanted to know with a clock of 20Mhz, if you can output a 50HZ output to the motors PWM input? The 50HZ is the needed input from the PIC.

thanks
PCM programmer



Joined: 06 Sep 2003
Posts: 21708

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PostPosted: Wed Nov 09, 2011 11:10 pm     Reply with quote
Quote:

I wanted to know with a clock of 20Mhz, if you can output a 50HZ output
to the motors PWM input.

This post has a link to a PWM frequency formula which will answer your
question. It also has other PWM links:
http://www.ccsinfo.com/forum/viewtopic.php?t=45968&start=1

Quote:

The 50HZ is the needed input from the PIC.

This thread discusses low speed PWM:
http://www.ccsinfo.com/forum/viewtopic.php?t=37807
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