Moshe Valdman wrote: > Hi all, > > I have a 8051 compatible microcontroller (Silicon labs) on a board > I had cases at customer sites where the internal RAM and even (more > rarely) internal flash was "erased". Seems like this was caused by > noise in those sites (e.g. other machines switched on\off) > Any idea how noise could be coupled into the microcontroller?
Yes. 10^6 ideas. Way too many to go into here. > How can I minimize such an effect? Whenever I see gross errors of this kind I go back to the basics. When you hear hoof beats think of horses before zebras. I would examine my power and grounding very carefully. Fred Townsend > > thanks in advance, > Moshe Valdman > Reliability Manager > Orbotech > - > ---------------------------------------------------------------- > This message is from the IEEE Product Safety Engineering Society > emc-pstc discussion list. Website: http://www.ieee-pses.org/ > > To post a message to the list, send your e-mail to [email protected] > > Instructions: http://listserv.ieee.org/request/user-guide.html > > List rules: http://www.ieee-pses.org/listrules.html > > For help, send mail to the list administrators: > > Scott Douglas [email protected] > Mike Cantwell [email protected] > > For policy questions, send mail to: > > Jim Bacher: [email protected] > David Heald: [email protected] > > All emc-pstc postings are archived and searchable on the web at: > > http://www.ieeecommunities.org/emc-pstc > > - This message is from the IEEE Product Safety Engineering Society emc-pstc discussion list. Website: http://www.ieee-pses.org/ To post a message to the list, send your e-mail to [email protected] Instructions: http://listserv.ieee.org/request/user-guide.html List rules: http://www.ieee-pses.org/listrules.html For help, send mail to the list administrators: Scott Douglas [email protected] Mike Cantwell [email protected] For policy questions, send mail to: Jim Bacher: [email protected] David Heald: [email protected] All emc-pstc postings are archived and searchable on the web at: http://www.ieeecommunities.org/emc-pstc
