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  3. Refer to another output equation in ADE

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Refer to another output equation in ADE

Grover
Grover over 16 years ago

If I set up the output signals and expressions in Analog Design Environment, is it possible to refer to other expressions in an expression? For example, if I have the expressions

pin3 = (power from the 3.3 V supply)
pin12 = (power from the 12V supply)

can I then define

ptot = pin3 + pin12

in some way?

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  • Andrew Beckett
    Andrew Beckett over 16 years ago

    You didn't say which version you're using - so I'm assuming this is ADE in IC5141 or ADE L in IC613.

    You can't just refer to an output by name (support for that is added in IC614). If you make the expressions:

    pin3:  pin3=(power from the 3.3V supply)
    pin12:  pin12=(power from the 12V supply)
    ptot:  pin3+pin12

    In other words, put a varName= before each expression - it will then evaluate the expression which will include an assignment to a SKILL global variable. The expressions are evaluated top to bottom, and so you need to ensure that you don't refer to a variable before defining it.

    In IC614 variables will automatically get created for each output (they won't be global though, but available within the scope of the expression evaluation).

    If you're using IC61X and ADE XL, then you can use the calcVal() function. This can easily be set up by dragging an output from the ADE XL outputs pane into the calculator buffer - and it will automatically set up the calcVal expression for you.

    Regards,

    Andrew.

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  • Andrew Beckett
    Andrew Beckett over 16 years ago

    You didn't say which version you're using - so I'm assuming this is ADE in IC5141 or ADE L in IC613.

    You can't just refer to an output by name (support for that is added in IC614). If you make the expressions:

    pin3:  pin3=(power from the 3.3V supply)
    pin12:  pin12=(power from the 12V supply)
    ptot:  pin3+pin12

    In other words, put a varName= before each expression - it will then evaluate the expression which will include an assignment to a SKILL global variable. The expressions are evaluated top to bottom, and so you need to ensure that you don't refer to a variable before defining it.

    In IC614 variables will automatically get created for each output (they won't be global though, but available within the scope of the expression evaluation).

    If you're using IC61X and ADE XL, then you can use the calcVal() function. This can easily be set up by dragging an output from the ADE XL outputs pane into the calculator buffer - and it will automatically set up the calcVal expression for you.

    Regards,

    Andrew.

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