I cannot hierarchically refer a function in scoreboard from sequence

[chip_maker]

In the following code, I cannot hierarchically refer a function in scoreboard from sequence. I have to first get the scoreboard handle and then call function using the handle.

The following does not work:

uvm_test_top.env.my_env0.my_sb0.disable_scoreboard(0);

The following works

handle_my_sb0.enable_scoreboard(1);

What am I missing something in the first case?

Thanks,

Kal

===========

class my_test2_vseq extends my_base_test_vseq;

uvm_component handle_sb;

my_scoreboard handle_my_sb0;

`uvm_object_utils(my_test2_vseq)

`uvm_declare_p_sequencer(my_virtual_sequencer)

function new(string name="my_test2_vseq");

super.new(name);

handle_sb = uvm_top.find("*my_sb0");

`uvm_info("",$psprintf("handle_sb %s", handle_sb.get_full_name()),UVM_LOW)

$cast(handle_my_sb0, handle_sb);

`uvm_info("",$psprintf("handle_my_sb0 %s", handle_my_sb0.get_full_name()),UVM_LOW)

endfunction : new

task body();

#200ns

//uvm_test_top.env.my_env0.my_sb0.disable_scoreboard(0); //<- Does not work

handle_my_sb0.enable_scoreboard(1); // Works

#10000ns ;

endtask:body

endclass:my_test2_vseq

[dave_59]

When you say "Does not work" you need to be more explicit. I'll assume you mean you are getting a compile error.

uvm_test_top.env.my_env0.my_sb0.disable_scoreboard(0);

is not a hierarchical reference in the LRM terminology, it is a class member select. I'm also going to assume my_sb0 is a handle to a class that is a base class to my_scoreboard, so you will need to cast that the same as you did with handle_sb.

In any case, using find is preferred over using what looks like a hierarchical reference because is is less re-usable as your testbench component hierarchy changes.