interrupt problem

handsprince · Joined: 12 Mar 2006 Posts: 20

how can i make the system interrupt for every 60 second? and how can i calculate the cycle if i'm using 4 MHz crystal ? newbie in interrupt, thanks

KU5D · Posted: Sun Apr 27, 2008 8:32 am

Can you be a bit more specific? What is it you're trying to do?
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handsprince · Joined: 12 Mar 2006 Posts: 20

means how can i make the timer to overflow for every 60 seconds

foodwatch · Joined: 18 Apr 2006 Posts: 66

Look in the Code Forum at the real time clock code. You should be able to get fairly decnt timing using tmr overflows...

foodwatch · Joined: 18 Apr 2006 Posts: 66

Look at this post in the code section:

Timer based Real Time Clock (RTC)