A clock circuit that keeps counting from a set number down to zero. If the event it is monitoring occurs before it reaches zero, it resets to the starting number and starts counting down again.

A watchdog is used in systems to prevent system lockup due to software or hardware failures. For normal operation, the timeout counter has to be reset by the CPU in a regular interval. Depending on ...

Jack explains how to keep an eye on your dog. Since watchdog timers (WDTs) are our last line of defense when the code collapses, they had better be foolproof. Let's take a look at how they work in ...

The Watchdog Timer is a fail/safe function used to reset a system in case the microprocessor gets lost due to address or data errors. The Watchdog Timer module is a 16 bit down counter with a ...