Functions don't work in declarations section

[davehigton]

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

 

[Tricky]

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 );

 

[davehigton]

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