title: When to use windowed watchdog for embedded systems
body: <p>This post is not for asking how to use it, but when.</p>
  
  <p>There is a lot of documentation about windowed watchdogs (WW), and most microcontrollers already include it. Every vendor states that WW are meant for safety applications, but no one says more about this topic.</p>
  
  <p>I would like to be pointed to specific examples, but examples that could be a little more than "for a car's brakes system".</p>
  
  <p>We all know that a WW must be fed neither too early nor too late, but how will this scenario help to improve safeness?</p>
  
  <p>Thank you!!</p>