Icarus verilog + GTKWave installing and running | Free software for verilog HDL

Iverilog is a free software where we can compile & check the waveform of our design , I have explained in the video , how to download and run it.
Steps -
1. Search for Icarus verilog , select the first link , then download the required file according to os and config of your pc .
2 .set the Environmental variables
3. Create your design file
4 . Use the below commands in your cmd
Compile it:
iverilog -o dsn counter_tb.v counter.v
Then run it:
vvp dsn
Then look at the test.vcd waveform:
gtkwave test.vcd &
Please do subscribe 👍

[@KarthikVippala]

Namaste 🙏, everyone if you are facing any issues try downloading the latest version 👍😊

[@YagnaSri-w5p]

while trying to get the gtk waveform it is showing "GTK Analyser v3.3.48 (w)1999-2013 BSI " can u please let me know what to do

[@mraravinda]

@@YagnaSri-w5p Complete Tutorial on How to Use Icarus Verilog - kzbin.info/www/bejne/aJaaZaCCr9uhbJYsi=l2mICxBuJe_DmqCr

[@Medha460]

'C:\iverilog\bin' is not recognized as an internal or external command, operable program or batch file. error

[@zymone5257]

It's not working on my pc, whenever I am trying to run the test file. it's telling me "no top-level module, and no -s option",

[@amolchoubey932]

I am getting same error

[@sahilraj690]

Save the test file in bin folder and rum command without writing .txt in enf

[@YagnaSri-w5p]

​@@sahilraj690while trying to get the gtk waveform it is showing "GTK Analyser v3.3.48 (w)1999-2013 BSI " can u please let me know what to do

[@lewnekoexperience1312]

put your text file with the code inside the same bin as the iverilog.exe and vvp.exe

[@DevendranathMaddula]

It was really helpful and thanks alot🥰

[@gerhenry7127]

Great content and good music also 👍

[@KarthikVippala]

Namaste 🙏 Henry, thanks for the support, good luck and great health 👍😊

[@z.o.e3023]

Thank you. Works perfectly

[@alanreyes28]

thank you for the tutorial, is there a way for you to execute the iverilog command outside the bin file? Or do I always have to save new projects into the bin folder? Thanks in advance

[@rubik8529]

Thanks for this tutorial. One doubt, is there anyway to get internal signals in gtkwave? I can only see the input/output ports in gtkwave

[@prateekchauhan189]

in command prompt it is showing iverilog not recognised, i already added it to environmental variables and downloaded same version as you,kindly help me out

[@amj7090]

If u found how to install let me help also same I am also getting like that

[@sree_r4g_]

How to solve it

[@pranavchauhan3549]

object file test.v.txt command is not running, but simply test.v runs fine

[@harikrishna9231]

Thank You So much

[@koushivesangi7956]

I have installed iverilog and the first iverilog command is also working but when I pass vvp test1 Its showing me "Unable to open input file" What should I do??

[@KarthikVippala]

Please check the name given in previous command

[@Shruti-dh2ic]

Hi, hear in the compilation and simulation command what is the meaning of "dsn"?

[@skyline-wd3gr]

if there are multiple modules interlinked to each other,then how do i run it on terminal

[@KarthikVippala]

Give all file names in the commmand, or u can create a filelist and source it

[@mohamedzahran3340]

how do I compile a file without having to put the file in the iverilog folder itself ? If my file is in another workspace how do I compile using iverilog ?

[@sakshigandhewar4489]

Same issue

[@mohamedzahran3340]

@@sakshigandhewar4489 I resolved the issue, someone told me to download the latest version available rather than the one mentioned in this video, after I installed the latest version I can use the iverilog command anywhere

[@mohamedzahran3340]

@@sakshigandhewar4489 kzbin.info/www/bejne/aYnQZ5mdgKaCb5Y this is the video that helped me

[@semiconductor9149]

Is there any software where we can directly write code and execute them without using cmd?

[@Pappu77775]

is your background Palani by any chance??

[@FemaMathew]

How to get the code for counter both design and testbench ??

[@vaibhavverma4732]

"no top-level module, and no -s option" Error can be resolved by entering into command prompt "cd \iverilog\bin" then "iverilog test.v" then "vvp a.out" to get the output as"Hello, World".

[@anirbansarkar3104]

hi same error, cant resolved can you please help me

[@vaibhavverma4732]

@@anirbansarkar3104 For me, entering the command: "cd \iverilog\bin" followed by "vvp a.out" worked, got the output, hopefully it should work in your case too

[@aathil7465]

Thanks alot

[@zaidakhtar3093]

Would you please provide the test codes of counter.v in the description. This would help viewers to verify their system

[@KarthikVippala]

Sure I will add

[@ambujsrivastava2067]

@@KarthikVippala please share code so that we can verify

[@luckywood1826]

I love that you have riot games pile

[@430ashamandadi3]

In cmd I didn't get bin folder what can I do sir plz suggest me

[@anushamg2488]

The bin has different files.There is ntg called test.v 😭😭😭

[@skyline-wd3gr]

after i entered vvp dsn,its not displaying anything

[@ahmedfarooqkhan8541]

counter_tb is giving syntax error, please help module test; /* MAKE A RESET THAT PULSES ONCE. */ reg reset = 0; initial begin $dumpfile("test.vcd"); $dumpvars(0,test); # 17 reset = 1; # 11 reset = 0; # 29 reset = 1; # 5 reset =0; # 513 $finish; end /* make a regular pulsing clock. */ reg clk = 0 always #1 clk = !clk; wire [7:0] value; counter c1 (value, clk, reset); initial $monitor("At time %t, value = %h (%0d)", $time, value, value); endmodule // test

[@nichelos1]

If I want to use iverilog, vvp and gtkwave cmd to compile and view waveform, should I separate "design.v" and "testbench.v" as two files ? Is it ok that I combine "design.v" and "testbench.v" in one .v file then go compile and follow-up process ? Thanks.

[@OlDinesh]

no u cant have them in same file

[@AdityaSharma-ug3ip]

hey can u please share the code ? is there any other way to excute this?

[@PRIYANKADAS-kl2cq]

When I am running the first cmd as iverilog.exe -o test test.v.txt then I'm getting error as syntax error and Missing close quote of string.

[@noicenoise8718]

You can remove the ".txt" extension if your file is renamed to "test.v" only. Works for me.

[@VishalSingh-el7rx]

Love ❤

[@alainniganze2305]

can please provide to us that code

[@matambasavaraju3430]

Thank you

[@KarthikVippala]

Thanks for the support good luck,& great health 👍😊

[@matambasavaraju3430]

@@KarthikVippala sir I want to enter into vlsi field what I have to learn before doing mtech in VLSI design? Now I am studying final year btech (ece) We have verilog in this semester

[@matambasavaraju3430]

@@KarthikVippala thanks for replying sir

[@KarthikVippala]

Namaste BasavaRaju 🙏 , please ask all your questions , I will be interviewing a 30year vlsi expert to answer them for you.

[@sardharvankunavath1988]

Am not able to find test.v in my system

[@sardharvankunavath1988]

I need how to do bro am not getting i need it urgently i have project submission

[@KarthikVippala]

Namaste sardhar, we need create test.v manually,thanks for asking ,good luck & great health:)

[@sardharvankunavath1988]

@@KarthikVippala where we have to create

[@sardharvankunavath1988]

@@KarthikVippala when am going to create it was like new folder

[@KarthikVippala]

Create a text doc

[@tejab8352]

any simulator for system verilog?

[@KarthikVippala]

Namaskaram 🙏 Venkat , I will update you, if I find any free software. Good luck & great health 👍😊

[@princepathak9521]

i cant find test.v file in bin

[@KarthikVippala]

Need to create it.

[@sampatharaojyotsana7412]

I am trying to install iverilog but during the cmd step my pc is replying i give up. syntax error again and again

[@KarthikVippala]

Please try again it will work, Good luck & Great Health :)

[@ecestories8816]

facing the same issue!

[@beaconbin465]

Mine was showing the same issue but it was resolved after I saved the test.v file as All File and not as text docs

[@prakashipl1703]

@@beaconbin465 please help it's showing no such file or directory exists when I was creating object file

[@malcolmfernandes6122]

Valoo

[@KarthikVippala]

Namaskaram _/\_ Fernandes , What does valoo mean? good luck & great health, Take care :)

[@malcolmfernandes6122]

@@KarthikVippala Valorant :)

[@sakshigandhewar4489]

I am not getting that test.v file concept exact where we have to save that file as i am getting no such file directory error plzz reply it's urgent

[@panchanathanpanchanathan5996]

I too

[@fridah640]

How did you solve it

[@mohamedahmed1258]

plisse give me link!

[@KarthikVippala]

Namaskaram Ahmed 🙏,There is no link , you can find it on google , good luck & great health 👍😊