At 01:14 AM 14/12/2012, you wrote: >Hi Dwayne, > I have an experience with 16f parts that some functions not >working. But when I reprogrammed the chip it becomes perfect working >condition. I had enabled Brown out reset. The question_ How the code >altered from program memory is still confusing me. But this condition is a >rare problem to me now. But I believe if it occurred once it will be a >problem soon or later. Is it used in a high-EMI environment? Do you take precautions to prevent flash from being written by code that goes haywire? --sp =20 --=20 http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .