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Need help with timer (prescaler)

 
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Pouette



Joined: 21 May 2004
Posts: 1

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Need help with timer (prescaler)
PostPosted: Fri May 21, 2004 12:25 pm     Reply with quote
I'm a newbie with PIC. I need to know how to set a conter, if example i want an event every seconde.

Juste an explanation on how to calculate the prescaler will help. Because i ave no idea how to set it!

What this mean
setup_counters( RTCC_INTERNAL, RTCC_DIV_256)
What is RTCC_INTERNAL and the divisor


Tanks in advance for your help and support
Haplo



Joined: 06 Sep 2003
Posts: 659
Location: Sydney, Australia

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PostPosted: Fri May 21, 2004 4:33 pm     Reply with quote
RTCC_INTERNAL defines the source of Timer0 and RTCC_DIV_256 sets the prescaler. You look at the device datasheet under Timer0, it explains everything very clearly.
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