----- Original Message ----- From: Tom Messenger > Setup: pic chip controlling a motor in a typical h bridge. PIC just > happened to be an EPROM variety compleat with window. > > System was on and running, customer said "Looks cool, gotta get a photo for > the folks back home". He grabbed his camera, click, flash, bang, smoke jets > out, motor stops, shows over. > > Seems the flash latched up the photo sensitive pic and caused just the > right outputs to go on to fire top and bottom of the h bridge simultaneously. Um.... wow. I suppose no one thought to cover the window for proper testing? Jeff -- http://www.piclist.com#nomail Going offline? Don't AutoReply us! email listserv@mitvma.mit.edu with SET PICList DIGEST in the body