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External data memory access

Roberto Uriarte

I'm trying to access to a non-volatile memory DS1330YP from C167CR-LM and I'm trying to save absolute variables making defines like this:
#define x MVAR (uword, 0x80000)

I've configured the start address in 0x80000 position and the size is 0x2000

If I write and read it does not work, could you help me?

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    Hi Roberto.

    Thing that can go wrong:

    1) The configuration of external bus interface can be incorrect.
    2) There can be a mistake in hardware (board routing etc.)
    3) Chip can be faulty (unlikely.)
    4) There can be a bug in your program.
    5) Lots of other things can go wrong.

    Do some research.

    - mike

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  • 0

    Hi Roberto.

    Thing that can go wrong:

    1) The configuration of external bus interface can be incorrect.
    2) There can be a mistake in hardware (board routing etc.)
    3) Chip can be faulty (unlikely.)
    4) There can be a bug in your program.
    5) Lots of other things can go wrong.

    Do some research.

    - mike

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