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PWM 16F877A

 
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Bilal



Joined: 24 Apr 2010
Posts: 75
Location: Islamabad

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PWM 16F877A
PostPosted: Fri Jan 28, 2011 3:29 am     Reply with quote

Hi.. PIC16F877A has 2 CCP channels.. can i use both thes channels to geneate two different PWM frequencies simultaneously???
is it possible??
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Ttelmah



Joined: 11 Mar 2010
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PostPosted: Fri Jan 28, 2011 5:01 am     Reply with quote

No.
Two different pulse widths, but the same frequency.
This is down to the available timing sources. Both the channels, on the 877, feed their clock from the same timer (timer 2). In the data sheet, table 8-2, fourth line.
Some atter PWM's (18 family chips), allow two different clocks to be selected.

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