• State Not Answered
  • Locked Locked
  • Replies 6 replies
  • Subscribers 22 subscribers
  • Views 1467 views
  • Users 0 members are here
Options
Related
How was your experience today?
This discussion has been locked.
You can no longer post new replies to this discussion. If you have a question you can start a new discussion

bit corruption in Atmel AT89C51ED2 internal flash

guy lupescu

hi
working with AT89C51ED2 device from Atmel, has anyone encountered a situation in which a single or multiple bit of the internal flash image file get corrupted?
i need a few hints on this phenomena which prevent correct code execution, major suspicion is brown-out scenario?
Best regards

Parents
  • 0 in reply to Steve C

    i currently have a external POR device, one thing i think of is that it can get into contention with the internal POR/WDT/PFD circuits that drive reset out if asserted.
    when using "a external POR device"ith a chip that has "internal POR/WDT/PFD circuits that drive reset out" it is essential not to use a push-pul output supervisor.

    I'm having similar problems with an 89C51RC2. I occassionally get the first 128 bytes of flash set to FF. I have no power supply supervisor.
    then add one (see note above)

    Erik

Reply
  • 0 in reply to Steve C

    i currently have a external POR device, one thing i think of is that it can get into contention with the internal POR/WDT/PFD circuits that drive reset out if asserted.
    when using "a external POR device"ith a chip that has "internal POR/WDT/PFD circuits that drive reset out" it is essential not to use a push-pul output supervisor.

    I'm having similar problems with an 89C51RC2. I occassionally get the first 128 bytes of flash set to FF. I have no power supply supervisor.
    then add one (see note above)

    Erik

Children