[uvm]参数化类--例子

最新推荐文章于 2025-03-18 21:16:11 发布

原创

最新推荐文章于 2025-03-18 21:16:11 发布 · 907 阅读

4 ·

CC 4.0 BY-SA版权

文章标签：

#uvm

这篇博客探讨了UVM中的参数化类在继承和覆盖方面的应用，通过一个具体的例子展示了如何使用`base_scoreboard#(uvm_sequence_item) scb;`来创建参数化得分板。文章基于《uvm实战》第四章第三节的内容，详细解释了遇到的报错问题。

摘要生成于 C知道，由 DeepSeek-R1 满血版支持，前往体验 >

//基于【uvm实战】ch4.3.3 写的小测试

参数化类的继承
参数化类的override 覆盖

[uvm] 参数化类的继承


`ifndef MY_ENV__SV
`define MY_ENV__SV

class my_env extends uvm_env;

   `uvm_component_utils(my_env)
   my_agent   i_agt;
   my_agent   o_agt;
   my_model   mdl;
  // base_scoreboard scb;
   base_scoreboard#(my_transaction) scb;  //重点
 //  base_scoreboard#(uvm_sequence_item) scb;
   
   uvm_tlm_analysis_fifo #(my_transaction) agt_scb_fifo;
   uvm_tlm_analysis_fifo #(my_transaction) agt_mdl_fifo;
   uvm_tlm_analysis_fifo #(my_transaction) mdl_scb_fifo;
   
   function new(string name = "my_env", uvm_component parent);
      super.new(name, parent);
   endfunction

   virtual function void build_phase(uvm_phase phase);
      super.build_phase(phase);
      i_agt = my_agent::type_id::create("i_agt", this);
      o_agt = my_agent::type_id::create("o_agt", this);
      i_agt.is_active = UVM_ACTIVE;
      o_agt.is_active = UVM_PASSIVE;
      mdl = my_model::type_id::create("mdl", this);
      base_scoreboard#(my_transaction)::type_id::set_type_override(my_scoreboard#(my_transaction)::get_type());//重点
    // set_inst_override("scb","base_scoreboard#(my_transaction)","my_scoreboard$#(my_transaction)"); 
  //  factory.set_inst_override_by_type(base_scoreboard#(my_transaction)::get_type(),my_scoreboard#(my_transaction)::get_type(),"*");

      scb = base_scoreboard#(my_transaction)::type_id::create("scb",this); //重点
     `uvm_info("my_env",scb.get_type_name(),UVM_LOW)
      agt_scb_fifo = new("agt_scb_fifo", this);
      agt_mdl_fifo = new("agt_mdl_fifo"