On Mon, May 10, 2010 at 8:03 AM, Isaac Marino Bavaresco wrote: > I had an event where the WDT didn't help. After a surge, something > latched-up inside the PIC and not even the WDT could fix. The chip > heated a little, but after power down and some time to cool, it worked > OK. Of course we replaced the chip anyway. > For Output modules, we always use an external watchdog if the control is done by an MCU. The external watchdog also needs to clear the output in case the MCU hangs. -- Xiaofan http://mcuee.blogspot.com -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist