Multiple Timer interrupt

[Anonymous]

hi,

   

How to implement interrupts at regular interval of 1msec,5msec and 7msec using a single timer?

[Bob_Marlowe · Accepted solution]

or

   

Use a 1ms interrupt, Increment a counter and check for (Counter % 5) == 0

   

Call your interrupt handler when zero, same for %7

       

Bob

[Anonymous]

thanks bob,

   

But what i need is to have seperate ISRs. And 5msec interrupt will have more priority than 1 msec one.

   

Do i have to use control registers or is there any other option?.

[Bob_Marlowe]

Under that premises you will need 3 individual timers, although I (personally) would do that in software.

       

Bob

[HeLi_263931]

The priority can be handled in software too (just check for timestamp%7 first).

   

Having separate timers makes it more difficult to have them synchronized.