用于uvm_events的参数化uvm_sequence

Question

在我的验证环境中，我设置了一些可重用的公共序列：

    class common_sequence(type T = uvm_sequence) extends uvm_sequence#(uvm_sequence_item);

       `uvm_object_param_utils(common_sequence_t#(T))

       function new(string name="common_sequence");
          super.new(name);
       endfunction

       T sequence;

       virtual task body();
          `uvm_do(sequence);
       endtask
    endclass

我想创造一些类似的东西，我可以通过在一个事件。

    class common_sequence_with_event(type T = uvm_sequence, type E = uvm_event) extends uvm_sequence#(uvm_sequence_item);

       `uvm_object_param_utils(common_sequence_t#(T,E))

       function new(string name="common_sequence");
          super.new(name);
       endfunction

       T sequence;
       E event;

       virtual task body();
          event.wait_trigger();
          `uvm_do(sequence);
       endtask
    endclass

我将通过测试将此事件设置为：

class my_test extends uvm_test;
   `uvm_component_utils(my_test)
   uvm_event my_event;

   function new(string name = "my_test", uvm_component parent=null);
      super.new(name,parent);
   endfunction

   virtual function void build_phase(uvm_phase phase);
      super.build_phase(phase);

      uvm_event my_event = new ("my_event");
   endfunction

   virtual function void end_of_elaboration_phase(uvm_phase phase);
      super.end_of_elaboration_phase(phase);

      // Schedule sequences with sequencers
      uvm_config_db#(uvm_object_wrapper)::set(this,
                                              "env.my_agent.sequencer.reset_phase",
                                              "default_sequence",
                                              common_sequence#(reset_sequence)::get_type());

      uvm_config_db#(uvm_object_wrapper)::set(this,
                                              "env.my_agent.sequencer.main_phase",
                                              "default_sequence",
                                              common_sequence_with_event#(my_sequence, my_event )::get_type());

   endfunction

endclass

我得到了编译错误：类专门化参数必须是common_sequence_with_event#(my_sequence，my_event)行的常量。

我猜这意味着传递给类的参数必须是常量。因此，在这种情况下，为什么它接受作为参数传入的reset_sequence。

还有，有没有更好的方法来做我想要达到的目标？

Answer 1

类型参数必须传递类型。my_event是一个变量，而不是类型。您没有显示my_sequence或reset_sequence的声明，但我假设它们是类类型。您需要参数E吗？是不是永远都是uvm_event