256个输入全部打包为单个256位输入向量。sel = 0应该选择in [0],sel = 1选择in [1]中的位,sel = 2选择in [2]中的位,依此类推。 moduletop_module(input [255:0]in,input[7:0]sel,outputout);endmodule 看到这个题目,刚开始我的第一反应是用generate for例化,可惜这个路子
甚至报错// 2MUX1-Method1√(组合逻辑块一般使用阻塞赋值建模) Refer to 《Nonblocking Assignments in ...
`timescale1ns/1nsmoduletest;initialbegin: runoob//命名模块名字为runoob,分号不能少integeri ;//此变量可以通过test.runoob.i 被其他模块使用i =0;foreverbegin#10i = i +10;endendregstop_flag ;initialstop_flag =1'b0;alwaysbegin: detect_stopif( test.runoob.i==100)begin//i累加10次,即100ns时...
Mux_4_1_b4 Muxb4(.I0(I0),.I1(I1),.I2(I2),.I3(I3),.s(scan),.o(Hex));wire[3:0] M; decoder_2_4 d24_1(.s(scan),.outp(M));assignp = (M[0] & points[0]) | (M[1] & points[1]) | (M[2] & points[2]) | (M[3] & points[3]);assignLE = (M[0] & ...
up=1'b0; down = 1'b0;left=1'b0; right = 1'b0;case(scancode)...// Set to 1 as necessary.endcase end 除非case语句覆盖赋值,否则这种代码样式可确保在所有可能的情况下输出0。这也意味着case的default项变得不必要。 提醒:always@(*)综合器会生成一个组合电路,其行为与代码描述的相同。硬件不会...
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构建一个在a和b之间进行选择的2对1 mux。如果sel_b1和sel_b2都为true,则选择b。否则,选择a。重复两次,一次使用assign语句,另一次使用过程if语句。 二、Verilog code module top_module( input a, input b, input sel_b1, input sel_b2, output wire out_assign, ...
25. What does Verilog code Timeframe 1 Ns/ 1 Ps Mean? This refers to the time resolution used in the simulation. It means the simulation time advances in steps of 1 nanosecond for behavioral models and 1 picosecond for gate-level models. 26. Is it required to list every input in the ...
8、用户自定义原件(UDP元件)是不能被综合的。 一:基本 Verilog中的变量有线网类型和寄存器类型。线网型变量综合成wire,而寄存器可能综合成WIRE,锁存器和触发器,还有可能被优化掉。 二:verilog语句结构到门级的映射 1、连续性赋值:assign 连续性赋值语句逻辑结构上就是将等式右边的驱动左边的结点。因此连续性赋值...
基础知识:1:数字电路基础(知道与或非,MUX等数字逻辑,卡诺图化简,组合逻辑、数字逻辑,DFF,FSM等...