Hi Moshe, Have you considered your device's operating environment? From what I collected from your email, I am assuming that your device is operating in an industrial type of environment. If this is correct, then has this device of yours been designed to and evaluated for immunity against an industrial environment immunity standard, such as IEC/EN61000-6-2? If not, you may have to consider it. I do not believe that the immunity requirements found in EN55024 are adequate for the industrial environment, assuming of course that your device is ITE.
These are just some of my thoughts for you to consider. Best regards, Ron Pickard [email protected] From: [email protected] [mailto:[email protected]] On Behalf Of Moshe Valdman Sent: Wednesday, March 15, 2006 10:38 AM To: '[email protected]' Subject: Microcontroller memory erased by noise 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? How can I minimize such an effect? 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
