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how to use timer2

 
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asimraufawan



Joined: 04 Jul 2008
Posts: 12
Location: Karachi Pakistan

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how to use timer2
PostPosted: Mon Nov 17, 2008 1:48 am     Reply with quote
hi everyone

I m using Timer2 with PWM for IR transmitter

the format we use is like.
Code:

{
setup_timer_2(mode,period,postscale);
set_pwm2_duty(value);
}


In MODE we use divide by 1 or 4 or 16 what difference does it make.

Now there are two things to select frequency & duty cycle
1.n IR we generally use 38KHZ & 50% duty cycle
2. it is necessary to put 50% duty cycle while transmitting.

What is post scale value range 0 to 16 , what happenes on every digit select.

THANKS.
sanddune008



Joined: 23 Oct 2008
Posts: 38

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PostPosted: Mon Nov 17, 2008 1:56 am     Reply with quote
There is a very good explanation on timers in code library......

following is the link
http://www.ccsinfo.com/forum/viewtopic.php?t=22467

Best regards,
Sanny
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