What is the function and implementation of a watchdog timer in an embedded controller environment?

The function of a watchdog timer in an embedded controller environment is to provide a safety mechanism that automatically resets the controller if the software malfunctions and fails to execute properly within a specified timeframe. An embedded controller is a specialized computer system designed to control specific functions within a larger system, like in automated machinery. The watchdog timer acts as an independent observer, constantly monitoring the main program's execution. The implementation involves configuring the watchdog timer wit....