Verdi software steps

File preparation

Take a two-frequency module as an example to demonstrate the simplest way to use Verdi.

ClockDiv.v

`timescale 1ns / 1ps
//
// Company: 
// Engineer: 
// 
// Create Date: 10/13/2020
// Design Name: Sniper
// Module Name: ClockDiv
// Project Name: 
// Target Devices: 
// Tool Versions: 
// Description: 
// 
// Dependencies: 
// 
// Revision:
// Revision 0.01 - File Created
// Additional Comments:
// 
//

module ClockDiv(
    input clk,
    input rst_n,
	output reg clk_div
);

always@(posedge clk or negedge rst_n)
begin
	if(!rst_n)
		clk_div <= 1'b0;
	else
		clk_div <= ~clk_div;
end

endmodule

tb_ClockDiv.v (note the part where the .fsdb file is generated)

`timescale 1ns / 1ps
//
// Company:
// Engineer:
//
// Create Date: 10/13/2020
// Author Name: Sniper
// Module Name: tb_ClockDiv
// Project Name:
// Target Devices:
// Tool Versions:
// Description:
//
// Dependencies:
//
// Revision:
// Revision 0.01 - File Created
// Additional Comments:
//
//

module tb_ClockDiv;

//input
reg clk;
reg rst_n;

//output
wire clk_div;

initial
begin
    clk = 0;
    rst_n = 0;

	#100;
	rst_n = 1;

end

//clock
always #5 clk = ~clk;

//DUT
ClockDiv DUT
(
    .clk(clk),
    .rst_n(rst_n),
    .clk_div(clk_div)
);

initial
begin
  $fsdbDumpfile("curve.fsdb");
  $fsdbDumpvars;
  $fsdbDumpon;
end

initial #1000 $finish;

endmodule

Excuting an order

Enter the following command in Terminal to compile the file:
(It is recommended to write the command in a shell script and save it as a compile.sh file, and then use source compile.sh to run)

vcs -R ClockDiv.v tb_ClockDiv.v -P ${NOVAS_HOME}/share/PLI/VCS/linux64/novas.tab ${NOVAS_HOME}/share/PLI/VCS/linux64/pli.a -full64 -debug_all

If the following error appears:

it means that the environment variable is not set.

Enter gvim ~/.bashrc in the terminal to open the bashrc file and add the following

export NOVAS_HOME=$Synopsys_Dir/Verdi2015
export PATH=$NOVAS_HOME/bin:$PATH

Save and exit, terminal input source ~/.bashrc to apply the changes, re-source compile.sh

Successful operation is as follows:

View waveform

Enter verdi in Terminal to open the software

verdi #只打开verdi
verdi -f file_list.f -ssf curve.fsdb #这条命令可以在打开verdi软件的过程中直接打开项目文件和波形文件
#打开file后，在文件的代码中鼠标选中要观察的信号名字，再按Ctrl+w，可以直接观察选中信号的波形

First, minimize the welcome interface:

click to open the waveform:







select the waveform + drag with the left mouse button , and you can observe the waveform within the drag range.
Then, you can start debugging~~

If the code is updated later, you can click New Waveform under the menu view again to re-import the fsdb file and signal to view.