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OT Corrupted internal flash on AT89C51ED2

Gyoergy Dozsa

Sorry for OT, but I in big trouble!

From time to time my devices with above mentioned processors corrupt content of internal program memory.
Does anyone see this behavior od 80C51ED2?

Dozsa Gyoergy

P.S.
Keil C51 user since '91

Parents
  • 0 in reply to erik malund

    I can't reproduce this error in lab, testing with more than 10,000 power on/off cycles.
    [...]
    it seems nobody can.

    Well, at least the usual laboratory power-supply on/off cycle often can't. It can take rather more "creative" power-cycles (bouncing switches, strange loads in parallel to the board, nearly dead batteries, ...) to hit the vulnerable spot of the system.

Reply
  • 0 in reply to erik malund

    I can't reproduce this error in lab, testing with more than 10,000 power on/off cycles.
    [...]
    it seems nobody can.

    Well, at least the usual laboratory power-supply on/off cycle often can't. It can take rather more "creative" power-cycles (bouncing switches, strange loads in parallel to the board, nearly dead batteries, ...) to hit the vulnerable spot of the system.

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