decalaring many constant in 1 name...

[energy_baz]

hi,

I have question on how to use array to declare my constant values. I want to use all the constant value in generic map. So, should I declare all the constant in generic..? As example :

constant ( z : integer := 3);
type a is array (0 to z-1) of integer;
constant b : a := (3,5,7)

I need to use all these value in generic map..thanks in advance...

 

[TrickyDicky]

you need to declare the type in a package if you want to use that type as a generic.

 

[energy_baz]

can we use generic in package..? I read from this....https://www.edaboard.com/threads/23546/
we can't use generic in package....it only accept constant....

 

[TrickyDicky]

No you cant, which is one of the problems - you need to then declare the constant in the package.
But the code you posted you dont need the constant.

package type_pkg is
  type a_t is array(integer range <>) of integer;
end package type_pkg.


entity some_ent is
  generic (
    a : a_t(0 to 2); --you dont need Z anymore, because you can declare the size of the array here
  );

 

[lucbra]

true, but the type can be defined

sorry posts crossed each other

 

[energy_baz]

how about the constant value 5,6,7? Do i have to declare it in the package as well? I need to include all these value later in generate statement..which it will be call in my generic map..

 

[TrickyDicky]

no, you can just declare the constant when you need it, or just define it on the generic map:

generic map (
a => (3,5,7),
....