`timescale 1ns/1ns module tb_test(); reg clk; reg signed [19:0] xn; wire SD_OUT; //***************************** Main Code ****************************// initial clk <=1'b0; parameter ClockPeriod = 20; always #(ClockPeriod/2) clk=~clk; //初始化输入信号 reg signed [19:0]mem[0:4095]; initial $readmemh("C:/Users/Administrator.DESKTOP-JTU13P3/Desktop/TEST/M.txt",mem); reg [7:0]cnt; reg ready; initial cnt = 8'd0; initial ready =1'd0; always @(posedge clk) begin if (cnt == 8'd4) begin cnt <= 0; ready <= 1'd1; end else begin cnt <= cnt + 8'd1; ready <= 1'd0; end end reg [11:0]data_address; initial data_address = 12'd0; always @ (posedge clk) if(ready) data_address <= data_address + 12'd1; else data_address <= data_address; wire signed [19:0]input_data; assign input_data = mem[data_address]; reg [7:0] i =0; always @ (posedge clk) begin if (i<255) i <= i+1; else i<= 255; end integer w_file; initial w_file = $fopen("data_out_1.txt"); always @(i) begin $fdisplay(w_file,"%d",SD_OUT); //十进制的输出 if(i == 8'd255) ; //共写入2500个数据 end //initial xn <= 20'd1000; //------------- orinum_inst ------------- test test_inst ( .clk(clk), .SD_OUT(SD_OUT), //output aftnum_out .test_in(input_data) ); endmodule
时间: 2024-01-17 10:15:44 浏览: 147
这是一个Verilog HDL的模块,包含了一个简单的测试台架和一个名为test_inst的模块实例。其中,test_inst模块的输入是input_data,输出是SD_OUT。在模块实例化之前,程序会先读取一个M.txt文件,将其中的内容存入名为mem的数组中。模块实例化之后,程序会周期性地将mem数组中的数据输入到test_inst模块中,并将输出SD_OUT以十进制的形式写入到一个名为data_out_1.txt的文件中。这个模块的功能目前不清楚,如果您有关于这个模块的问题,欢迎继续提问。
相关问题
`timescale 1ns / 1ps module test_tb; // Inputs reg clk; reg reset; // Outputs wire [7:0] led; // Instantiate the Unit Under Test (UUT) led uut ( .clk(clk), .reset(reset), .led(led) ); always #10 clk =~clk; initial begin // Initialize Inputs clk = 0; reset = 1; // Wait 100 ns for global reset to finish #100; reset = 0; // Add stimulus here end endmodule 解释这段代码,并每一行都添加注释
这段代码是一个 Verilog 语言的测试模块,用于测试一个名为 "led" 的模块。以下是每一行的解释:
```
`timescale 1ns / 1ps // 定义时间单位为1纳秒/1皮秒
module test_tb; // 定义模块名为 test_tb
// Inputs
reg clk; // 定义输入信号 clk 为寄存器类型
reg reset; // 定义输入信号 reset 为寄存器类型
// Outputs
wire [7:0] led; // 定义输出信号 led 为线网类型,宽度为8位
// Instantiate the Unit Under Test (UUT)
led uut ( // 实例化被测模块 led,并将其命名为 uut
.clk(clk), // 连接输入信号 clk
.reset(reset), // 连接输入信号 reset
.led(led) // 连接输出信号 led
);
always #10 clk =~clk; // 定义时钟信号 clk 为周期为20ns的反转信号
initial begin // 初始化模块
// Initialize Inputs
clk = 0; // 初始化时钟信号 clk 为 0
reset = 1; // 初始化复位信号 reset 为 1
// Wait 100 ns for global reset to finish
#100; // 等待100ns,使全局复位完成
reset = 0; // 将复位信号 reset 置为 0
// Add stimulus here // 在此处添加刺激信号
end
endmodule // 结束模块定义
```
`timescale 1ns / 1ps module test; reg [63:0] state; reg [79:0] keys; wire [63:0] res; wire clk; // Instantiate a module with a clock and res signal PRESENT inst ( .clk(clk), .res(res) ); initial begin state = 64'h0000000000000000; keys = 80'h00000000000000000000; clk = 0; end always #10 clk = ~clk; initial begin #600 $finish(); end endmodule请在模块中添加相应的输入端口声明
timescale 1ns / 1ps
module test(
input [79:0] keys,
input clk,
output reg [63:0] state,
output wire [63:0] res
);
// Instantiate a module with a clock and res signal
PRESENT inst (
.clk(clk),
.res(res)
);
always @ (posedge clk) begin
// Your code here
end
endmodule
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