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digital clock count

 
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wakaka



Joined: 11 Sep 2006
Posts: 27

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digital clock count
PostPosted: Sun Mar 11, 2007 7:40 am     Reply with quote
Hi all, i would like to use PIC16F876a to build a simple digital clock.

Below is partial of the code :

Code:
for(i=0; i <= X; i++) {
   
         delay_ms(1000)
         clock = clock +1;
                                         }
                               


The problem is what is the maximum value for X that CCS are supported. If according to calculation, 1 day consist of 86400 seconds. If i divide the Should i put X = 86400? or should i break in to for loops?
Plz guide, thanks.
jecottrell



Joined: 16 Jan 2005
Posts: 559
Location: Tucson, AZ

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PostPosted: Sun Mar 11, 2007 8:56 am     Reply with quote
Look at the following link:

http://www.ccsinfo.com/forum/viewtopic.php?t=26177

I use this code whenever I need an RTC and I haven't included an RTC IC.

Look at the compiler manual and read about the data types. You will see what the largest is.

Good luck,

John
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