Best way to pass parameters trough modules

[João Paulo]

I'm creating a parametrized Network on Chip on SystemC, and i need to pass the position of each router by parameters, so i tried templates but they don't accept variables, only const values, for now, i'm using the sc_in port, but i'm trying to not use this, anyone now's other ways?

[Eyck]

Why not use constructor prameters? Another option would be cci_params. Via the broker they can be given a value before they are created. So you can use them in contructor bodies....

[maehne]

As @Eyck suggested, constructor parameters should fit best your needs. You can even give them default values if it is sensible. If the number of parameters grows, grouping them in a struct may become handy. Its members can be default-initialised and you can override them with assignments before passing the whole struct to the module constructor. Personally, I like to first check for consistency and legal range for these parameters in the constructor / member function to which I pass this struct, e.g., by using assertions before actually using them for describing any behaviour/internal structure.