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PWM

 
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Bilal



Joined: 24 Apr 2010
Posts: 75
Location: Islamabad

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PWM
PostPosted: Thu Oct 21, 2010 11:26 pm     Reply with quote
Hi. I am using PIC16F877A. I want to control a DC motor with PWM.
Can I generate a 50Hz of signal with a CCP channel???
I am using crystal of 4MHz.
Code:

setup_ccp2(CCP_PWM);
setup_timer_2(T2_DIV_BY_16, 208, 1);

This gives me frequency of approx 300Hz.
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John P



Joined: 17 Sep 2003
Posts: 331

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PostPosted: Fri Oct 22, 2010 8:52 am     Reply with quote
We hate the word "impossible", but you can't do what you are trying to do. However, with a low frequency like that, you could easily write a PWM routine in software.
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