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Periodic test needed for external RAM?????

Ram kumar

Hi frnds,

while POWER ON the system i am checking External RAM memory.... but i am not checking the external RAM periodically.....whether the periodic test is needed are not???? Please clarify my doubt....

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  • 0 in reply to Ram kumar

    ... is to a large extent a residual from the olden magnetic core days. Today the likelyhood of a RAM failure is extremely small.

    I have to check the memory if any location corrupted or not
    the only way to do that is to have 3 copies of the data. If, however, you mean I have to check the memory if any location bad or not then several algorithms are available. However to make such a test relevant, you need to be able to change Vcc to min and max for the test.

    Erik

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  • 0 in reply to Ram kumar

    ... is to a large extent a residual from the olden magnetic core days. Today the likelyhood of a RAM failure is extremely small.

    I have to check the memory if any location corrupted or not
    the only way to do that is to have 3 copies of the data. If, however, you mean I have to check the memory if any location bad or not then several algorithms are available. However to make such a test relevant, you need to be able to change Vcc to min and max for the test.

    Erik

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