1.除了uvm_do 产生transaction,还可以使用uvm_create 与uvm_send 产生: 1)uvm_create 作用是例化transaction。可以做更灵活的处理。 2.可以不用uvm_create 宏,直接调用new 进行例化: 3.uvm_send_pri:
The uvm_transaction::begin_tr has a flag called record_enable, which is never turned on by any code in the UVM. Furthermore, the uvm_component begin_tr calls the uvm_transaction begin_tr to create “link” transactions, which appear to never be ended, or free’d, resulting in a large...
1. create trans_seq_item //declared handle using factory mechanism 2. start_item(trans_seq_item) 3. trans_seq_item.**randomize**() //***Randomizing the transaction ,***ready to used 4. finish_item(trans_seq_item) -note: use response if move to next item D**river side operation:...
2. UVM TLM通信机制 TLM是Transaction Level Modeling(事务级建模)的缩写起源于SystemC的一种通信标准。 所谓transaction level是DUT中各个模块之间信号线级别的通信来说的。 2.1. TLM 原理 2.2. 常用的UVM端口 2.2.1. 端对端模式 2.2.1.1. port try_ 常用来是否成功为function, can_ 常用来是否可传输,为funct...
(uvm_phase phase); // 需要将接口数据传递出去,所以定义transaction对象 my_data data_object = my_data::type_id::create("data_object",this); forever begin // 数据有效的时候,采样 @[Some event when data at DUT port is valid]; // 将接口信号给到transaction data_object.data = vif.data; ...
(transaction);`uvm_object_utils(bus_seq)transactiontxn;bus_configbus_cfg;randintlimit=25;functionnew(stringname);super.new(name);endfunction:newtaskbody;inti=5;txn=transaction::type_id::create("txn",this);/// Get the Configuration objectif(!uvm_config_db#(bus_config)::get(null,get_full_...
my_env.sv的主要是agent scoreboard reference_model模块的实例化,和三个tlm_analysis_fifo,然后build_phase中type_id::create()模块,配置i/oagent,scoreboard model和new三个FIFO,之后connect_phase中,connect analysis_export和blocking_get_export。 4、my_transaction.sv 要传送的transaction import uvm_pkg::*;...
首先，sv是门工具语言，我们之所以学习它，根本目的要使用它构建一个能够和“硬件设计部分”进行交互的...
How to write a UVM transaction class? There has been a split in UVM – how to create a sequence item class? Having worked for the big 3 EDA companies and supported many customers, I’ve seen both sides. Let’s explore the two leading flavors, chocolate and vanilla, and have a look ...
uvm_analysis_port是一个参数化的类,其参数就是这个analysis_port需要传递的数据的类型,在本节中是my_transaction。 声明了ap后,需要在monitor的build_phase中将其实例化: 代码清单 2-44 文件:src/ch2/section2.3/2.3.5/my_monitor.sv 14 virtual function void build_phase(uvm_phase phase); … 18 ap...