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How to set the size of data segment?

aidong qian

I want to use a larger data segment(not xdata), can I set it in uVision51?

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    I don't think so. Since Data segment have 128 bytes and only use direct address mode, the option is to use indirect address do reach 256 bytes ( Idata ) or use an external 256 bytes area ( Pdata ).

    This segments definitions are defined by the hardware and instructions set. So you won't be able to change it.

    - Alex

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  • 0

    I don't think so. Since Data segment have 128 bytes and only use direct address mode, the option is to use indirect address do reach 256 bytes ( Idata ) or use an external 256 bytes area ( Pdata ).

    This segments definitions are defined by the hardware and instructions set. So you won't be able to change it.

    - Alex

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