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eeprom data initialization

andre moutinho

Hi,

Is there any way to initialize EEPROM data except during running time ?

Regards,

Andre

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  • 0 in reply to andre moutinho

    The latest examples included with the C51 installation show how to use the XDATA banking capabilities to enable you to locate 'C' variables in serial EEPROM.
    See also http://www.keil.com/forum/docs/thread1754.asp

    Having implemented that support, I don't see why you shouldn't then be able to use normal 'C' initialisers with those variables.

    However, note that the compiler would still have to store the initialisers in the CODE space (ROM) and would copy them into the EEPROM each time your application (re)booted.
    This doesn't sound like an appropriate approach for EEPROM - using a device programmer, or a special programming/initialisation mode sounds much more sensible. You could probably incorporate it as part of your unit's final test?

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  • 0 in reply to andre moutinho

    The latest examples included with the C51 installation show how to use the XDATA banking capabilities to enable you to locate 'C' variables in serial EEPROM.
    See also http://www.keil.com/forum/docs/thread1754.asp

    Having implemented that support, I don't see why you shouldn't then be able to use normal 'C' initialisers with those variables.

    However, note that the compiler would still have to store the initialisers in the CODE space (ROM) and would copy them into the EEPROM each time your application (re)booted.
    This doesn't sound like an appropriate approach for EEPROM - using a device programmer, or a special programming/initialisation mode sounds much more sensible. You could probably incorporate it as part of your unit's final test?

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