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How I can check memory for read or write access?

Vladimir Romanov
Intellectual 940 points

If I read from nonexistent address of memory or flash I will get interrupt. How can check ability to read or write to memory to avoid errors?

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    TI__Mastermind 49120 points
    Yes, you will get a data abort (for data fetch) or a prefetch abort (for instruction fetch) if you read from a memory location that does not exist or has been blocked from reading by the MPU. You need to write a prefetch abort handler and a data abort handler to address these cases.

    Regards,
    Sunil