为了解决这个问题, System Verilog引入了virtual interface的概念。virtual interface是实际interface的指针。即virtual interface是一种可以在class中实例化的数据类型,使用virtual interface可与被测设计(DUT)进行间接地通信,而无需使用层次结构引用。 interface将测试平台与DUT分开。virtual interface在测试平台的不同位置操纵...
1. 接口 interface 接口可以用作设计,也可以用作验证 在验证环境中,接口可以使得链接编的简洁而不易出错 interface和module的使用性质很像,可以定义端口,也可以定义双相信号;它可使用initial和always,也可以定义func和task interface可以在硬件环境和软件环境中传递,例如作为module的端口列表,也可以作为软件方法的形式参数...
systemverilog// 定义一个包含信号的接口interfacemy_if(inputlogicclk);logicsig;// ...可能还有其他信号endinterface// 在顶层模块中实例化接口并连接到DUTmoduletop;bitclk=0;my_ifvif(clk);// ...实例化DUT并连接接口// 实例化UVM test并传递虚拟接口initialbeginuvm_config_db#(virtualmy_if)::set(null...
即virtual interface是一种可以在class中实例化的数据类型,使用virtual interface可与被测设计(DUT)进行间接地通信,而无需使用层次结构引用。 interface将测试平台与DUT分开。virtual interface在测试平台的不同位置操纵一组虚拟信号,而不是直接操纵实际的信号。 interface SBus; // A Simple bus interfacelogic [7:0]...
Published tutorial and methodology material on SystemVerilog has overwhelmingly recommended use of the virtual interface construct to achieve this interaction. A virtual interface is a reference to a static interface instance. The class-based test environment, constructed dynamically at the beginning of a...
关于systemverilog中virtual的使用以及class类和interface接口的区别 2018-09-04 17:34 −... 闫若川FPGA 0 1850 c++之结构体struct和类class的区别 2019-12-24 16:55 −权限的不同:class默认权限为private,struct默认权限为public。 #include<iostream> using namespace std; class Student { string name; ...
Verilog code : module vjiInterface( input out_data, output reg visual ); wire tck, tdi; reg tdo; wire ir_in; wire ir_out; wire v_cdr, v_sdr,v_udr,v_e1dr,v_pdr,v_e2dr,v_cir,v_uir; reg dr1_tmp_reg =0; assign ir_out = ir_out; reg cdr_delayed, sdr_delayed; myVJI...
In-System Memory Content Editor Displays and allows you to edit on-chip memory. In-System Sources and Probes Provides a way to drive and sample logic values to and from internal nodes using the JTAG interface. Virtual JTAG Interface Opens the JTAG interface so that you can develop your own ...
One of the most interesting concepts in SystemC TLM-2.0 is the concept of Direct Memory Interface (DMI). I remember when Mentor Graphics introduced Seamless back in the mid-1990's. Many users were impressed with how fast it could run embedded software. ...
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