Hi folks,

First things first, I'm new to all this! So I'm apologizing ahead of time if my question is simple.

I'm having a hard time finding timer interrupt examples for the SAM3U. I want a simple timer that goes off every 20ms and executes some code. I figure it's similar to most other microcontrollers where you attach a function to an interrupt. I'm not exactly sure where to start. Does anyone know where I can find a simple example?

I have a SAM3U and I'm programming it with the SAM-ICE. My environment is the latest Atmel Studio 6.

For a regular timing interrupt on a Cortex-M3 the SysTick interrupt is the way to go.

Joseph Yiu's book on the Cortex-M3 might be helpful to understand the interrupts and core functions of the processor.