> -----Original Message----- > From: piclist-bounces@mit.edu [mailto:piclist-bounces@mit.edu] On Behalf > Of IB Peter Feucht > Sent: 22 February 2011 09:08 > To: 'Microcontroller discussion list - Public.' > Subject: AW: [PIC] Reliability of EEPROM content of 12F519 >=20 > Hello, everbody, >=20 > thanks for your comments and input to my problem, it was very helpful. At > the end I decided to simply not use the EEPROM, means there are two > software > codes. I think, this is the easiest way, especially for nearly nobody > needs > mode 2. > But I'll think very intensively before using EEPROM the next time. >=20 For set and forget applications where the EEPROM is written maybe only once or twice I have never had issues, as long as brownout reset is enabled. If you have EEPROM access code and the possibility of a non-clean reset then expect trouble. You can maybe reduce the chances of a problem a little by not using address 0 in the EEPROM (since EEADR defaults to this), and by resetting the EEADR to point to this address after every EEPROM access, but it's far from foolproof. Regards Mike =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D This e-mail is intended for the person it is addressed to only. The information contained in it may be confidential and/or protected by law. If you are not the intended recipient of this message, you must not make any use of this information, or copy or show it to any person. Please contact us immediately to tell us that you have received this e-mail, and return the original to us. Any use, forwarding, printing or copying of this message is strictly prohibited. No part of this message can be considered a request for goods or services. =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D --=20 http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .