AVR-Chat

Adding onto what Jim said...

What language/compiler are you using?

That ask, I learned a lot from using CodeVisionAVR Demo version. Its 
CodeWizard can do the setup initialization. Then in the ISR (Interrupt 
Service Routine), you always re-load the timer, then do the whatever it 
is that that subroutine needs to do. 

--- In AVR-Chat@yahoogroups.com, "klassasin" <klassasin@b...> wrote:
> I recently obtained a STK500 and two ATtiny13V's.  I've done basic I/O
> with them already, but I want to try something a little more advanced.
>  I've been researching interrupts, yet I fail to find any particularly
> large amount of information on ATtiny13 interrupts.  Specifically, I
> want to use 8-bit timer that it comes equipped with.  I've looked
> through it's datasheet, yet the section on interrupts is confusing me.
>  I am unable to understand how to initialize interrupts (or the
> timer).  I also am having trouble understanding how to respond to a
> timer overflow interrupt.  Simply put, I need to initialize the timer
> interrupt so I can do a certain action every time it overflows.
>  Can anybody please help me with sample code to utilize timer
> interrupts on tiny13's or with a site that could help me with them?
> 
> Thanks for any help,
> 
> Kevin