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Address space overflow

Tom wu

I have a Real-time c51 program, I need a large buffer(120 bytes).Now I use the data segment space, but when I link it an error will appear: "Address space overflow, Length: 001DH".
I do not want to use xdata space like: xdata BYTE buf[120], because this type data will affect the executive speed, can I set a large data space?
Now I use the uVision/51 for windows Version 1.32.
Thanks very much!
Tom wu

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    Data space is internal RAM within the chip; you can't change its size.
    How much DATA space does your particular chip have?
    Try moving everything else out from DATA.

    Could you use PDATA instead of XDATA?

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  • 0

    Data space is internal RAM within the chip; you can't change its size.
    How much DATA space does your particular chip have?
    Try moving everything else out from DATA.

    Could you use PDATA instead of XDATA?

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