$display ("Full adder instantiation"); endmodule 顶层使用generate case来选调用半加器和全加器,通过参数为ADDER_TYPE 值进行区分: modulemy_adder(input a, b,cin, output sum,cout); parameter ADDER_TYPE =1; generatecase(ADDER_TYPE)0 :
generate case 允许模块、initial 和 always 块根据case表达式在另一个模块中实例化,以从多个选项中选择一个。 // Design #1: Half adder module ha (input a, b, output reg sum, cout); always @ (a or b) {cout, sum} = a + b; initial $display ("Half adder instantiation"); endmodule // ...
generate块生成用例允许基于case表达式在另一个模块中实例化模块、初始块和始终块,以从众多选项中选择一个。 // Design #1: Half addermoduleha(inputa,b,outputregsum,cout);always@(aorb){cout,sum}<=a+b;initial$display("Half adder instantiation");endmodule // Design #2: Full addermodulefa(inputa,...
genvari ; generate for(i=1; i<=M-1; i=i+1)begin always@(posedgeclk)begin mult1_ref[i] <= mult1_ref[i-1]; mult2_ref[i] <= mult2_ref[i-1]; end end endgenerate //自校验 regerror_flag ; always@(posedgeclk)begin # 1 ; if(mult1_ref[M-1] * mult2_ref[M-1] != re...
) return if not args.module: print("请指定要例化的模块名!") return modules = parse_verilog_file(args.file) if args.module not in modules: print(f"模块 '{args.module}' 不存在!") return module = modules[args.module] instantiation = generate_instantiation(args.module, module['params'], ...
一个组件用常见的模块(module)来表示。组件之间的连接由实例化(instantiation)声明实现。实例化声明规定一个组件在另外一个组件或电路中的实例,赋予标识符,并用关系列表设定信号与端口之间的联系。 除了自己设计的组件外,结构化Verilog还支持实例化预定义的原语:逻辑门、寄存器、Xilinx特定的原语(如CLKDLL、BUFG)。这些...
Verilog语言基本的描述单元---模块,模块是用来描述某个设计的功能或结构,以及它与其它外部模块进行通信的端口。 1modulemodule_name(port_list);2Declarations://声明3reg,wire,parameter,4input,output,inout,5function,task,...6Statements://语句7Initial statement8Always statement9Module instantiation10Gate instan...
This generate construct will select at most one of the generate blocks named u1. The hierarchical name of the gate instantiation in that block would be test.u1.g1. When nesting if-generate constructs, theelsealways belongs to the nearestifconstruct. Note the careful placement ofbegin/endwithin...
You can see the hierarchy of Subsystems that implement the Verilog code that uses module instantiation. Get open_system('top/top/NG1') Get open_system('top/top/rconst') Generate Simulink Model from Verilog Code That Infers RAMs Copy Code Copy Command This example shows how you can ...
module test #(parameter SIZE = 8) ( input clk, clken, input [SIZE-1:0] di, output [SIZE-1:0] do ); myreg #SIZE inst_reg (clk, clken, di, do); endmodule module parameter_generate_for_1 (clk, si, so); parameter SIZE = 8; ...