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Precise Memory Error

Susan Davies
Note: This was originally posted on 3rd August 2010 at http://forums.arm.com

I am working with a Cortex-m3 using assembler and am getting "precise memory errors".  The manuals refer to this fault a lot, but don't actually explain what it IS and how to fix it.  does anybody know?
Parents
  • 0 in reply to 42Bastian Schick

    The address of the variable is 0x20000130 which is within valid address range of RAM. But the address pointed by BFAR is 0x28000130 which is out of the range. It appears that an extra bit is getting set. Also this fault does not occur every single time. In one board, the fault occurs within 15 mins after power on. While in another board, the fault occurs after more than 1 hour.

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  • 0 in reply to 42Bastian Schick

    The address of the variable is 0x20000130 which is within valid address range of RAM. But the address pointed by BFAR is 0x28000130 which is out of the range. It appears that an extra bit is getting set. Also this fault does not occur every single time. In one board, the fault occurs within 15 mins after power on. While in another board, the fault occurs after more than 1 hour.

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