Coyote 2500 RTI Interrupt


I am working on a program on the Rabbit Coyote board that requires a periodic interrupt of 1 second, accurate to 1/3600th of a second. The only thing important is that the interrupt must occur at that frequency, while the actual load at the ISR does not matter. I’ve tried using costate and waitfor statements but tests shown that it does not reach the accuracy of the requirment.

I am new to programming Rabbit controllers, and I do not know how to create ISR for this processor. Could anybody kindly give me some pointers or show me where to find example codes that do this?