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. Sounds like it could have been a glitch on Vdd so that momemtarily some pins were more than a diode drop above Vdd, which caused the chip to become a SCR. ******************************************************************** Embed Inc, Littleton Massachusetts, http://www.embedinc.com/products (978) 742-9014. Gold level PIC consultants since 2000. -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist