UVM实战CH2:10 验证平台加入reference model

最新推荐文章于 2024-10-15 10:23:11 发布

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最新推荐文章于 2024-10-15 10:23:11 发布 · 5.9k 阅读

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验证平台加入reference model

reference model用于完成和DUT相同的功能，输出被scoreboard接受，用于和DUT的输出比较

代码分析

my_model 代码

`ifndef MY_MODEL__SV
`define MY_MODEL__SV

class my_model extends uvm_component;
   
   //声明两个接口，用以和monitor和scoreboard传输数据
   uvm_blocking_get_port #(my_transaction)  port;
   uvm_analysis_port #(my_transaction)  ap;

   extern function new(string name, uvm_component parent);
   extern function void build_phase(uvm_phase phase);
   extern virtual  task main_phase(uvm_phase phase);

   `uvm_component_utils(my_model)
endclass 

function my_model::new(string name, uvm_component parent);
   super.new(name, parent);
endfunction 

function void my_model::build_phase(uvm_phase phase);
   super.build_phase(phase);
   //创建两个接口实例
   port = new("port", this);
   ap = new("ap", this);
endfunction

task my_model::main_phase(uvm_phase phase);
   my_transaction tr;
   my_transaction new_tr;
   super.main_phase(phase);
   while(1) begin
      port.get(tr);
      new_tr = new("new_tr");
      //调用my_transaction的my_copy函数，连续复制DUT传输的TR，并发送出去
      new_tr.my_copy