By SV packages, we can group all related functions, tasks and classes at one place and import them any where in your environment and use them.
package CHK_PACK;
// Class declartions
// functions
function void check_pack ();
$display ("check_pack:: In CHK_PACK package\n");
endfunction
// Tasks
endpackage
Import this package in the $root space like.
import CHK_PACK::*;
The functions, tasks and classes in this package can be directly used like.
import CHK_PACK::*;
module tb();
initial begin
check_pack();
end
endmodule
NOTE:
1) New objects that are created in the Compilation unit scope cannot be created in these packages. If they are done, the simulator gives the following error.
> SV package not allowed to access items declared in Compilation unit scope
