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I've created a package file with some constants and some functions.
I've
referenced this package with the usual "library" and "use" statements.
The functions are available in the architecture bodies just fine; but
I'd like
to use one of the functions in a declarations section, to help define
some
constants. However, I can't do this; the scope of functions appears
to be
limited to architecture bodies.

Why is this?

Dave

On 24 Dec, 08:17, davehigton <davehig...@dsl.pipex.com> wrote:
> I've created a package file with some constants and some functions.
> I've
> referenced this package with the usual "library" and "use" statements.
> The functions are available in the architecture bodies just fine; but
> I'd like
> to use one of the functions in a declarations section, to help define
> some
> constants. *However, I can't do this; the scope of functions appears
> to be
> limited to architecture bodies.
>
> Why is this?
>
> Dave

Functions can set up constants just fine. make sure you're setting up
the constants below where you said use my_lib.my_package.all;

Are you declaring the constants like this?:

constant MY_CONSTANT : integer := my_functions( vars );

On 24 Dec, 08:38, Tricky <Trickyh...@gmail.com> wrote:
> On 24 Dec, 08:17, davehigton <davehig...@dsl.pipex.com> wrote:
>
> > I've created a package file with some constants and some functions.
> > I've
> > referenced this package with the usual "library" and "use" statements.
> > The functions are available in the architecture bodies just fine; but
> > I'd like
> > to use one of the functions in a declarations section, to help define
> > some
> > constants. *However, I can't do this; the scope of functions appears
> > to be
> > limited to architecture bodies.
>
> > Why is this?
>
> > Dave
>
> Functions can set up constants just fine. make sure you're setting up
> the constants below where you said use my_lib.my_package.all;
>
> Are you declaring the constants like this?:
>
> constant MY_CONSTANT : integer := my_functions( vars );

Thanks for your reply. In fact I'd just realised what I'd failed to
do: I hadn't written a function declaration. Now I have, everything
works fine, of course!

Dave