HW1Part2

system requirment

OS: Window -> install Ubuntu 20.04 Windows Subsystem for Linux (WSL).

Install all related prerequistics

Pls leave at least 20 GB for the WSL in your Disk C, (20GB is a safe value).

Install WSL in Windows

1. Open “Microsoft Store” -> Search “ubuntu 20.04.5 LTS” -> “install”
2. Download the update patch for WSL for Windows 11 link.
3. Install the downloaded “wsl_update_x64.msi” to patch the WSL system
4. Launch Window Powershell and Update WSL

   $ wsl --update
   

5. launch “ubuntu 20.04.5 LTS”.
6. “Enter new UNIX username:” Choose whatever name for the WSL u like XD.
7. “New password:” whatever u like
8. install GUI Follow the microsoft suggestion installation flow

   sudo apt update
   sudo apt install gedit -y
   sudo apt install gimp -y
   sudo apt install nautilus -y
   sudo apt install vlc -y
   sudo apt install x11-apps -y
   

9. Relaunch WSL through powershell

   $ Open Windows Powershell
   $ wsl
   

Install the verilator

Note that “all prerequistics need to be installed”

Go to link Follow the steps to install the prerequistics

#sudo apt-get install git perl python3 make autoconf g++ flex bison ccache
#sudo apt-get install libgoogle-perftools-dev numactl perl-doc
#sudo apt-get install libfl2  # Ubuntu only (ignore if gives error)
#sudo apt-get install libfl-dev  # Ubuntu only (ignore if gives error)
#sudo apt-get install zlibc zlib1g zlib1g-dev  # Ubuntu only (ignore if gives error)

git clone https://github.com/verilator/verilator   # Only first time

unsetenv VERILATOR_ROOT  # For csh; ignore error if on bash
unset VERILATOR_ROOT  # For bash
cd verilator

autoconf         # Create ./configure script
./configure      # Configure and create Makefile
make -j `nproc`  # Build Verilator itself (if error, try just 'make'), which takes 5 minutes on Intel 10-gen i7 (12 threadings)
sudo make install

Install the GTKwave

Follow installation guide from Microsoft

sudo apt install gtkwave

Ready to run?

Step 0: go back to parent directory and then download the testing file from repo

cd ~
git clone https://github.com/gt-cs3220/gt-cs3220.github.io

Step 1: Change to the path of tested hw1part2 and compile the verilog module of adder_var_seq.

cd gt-cs3220.github.io/Spring_2023/hw1part2/
verilator --cc adder_var_seq.v --top-module adder_var_seq

Step 2: Create the Cpp simulation file for Verilator. Pls take a look at the adder_var_seq.cpp in the current folder. The detail explainations are listed inside the adder_var_seq.cpp.

Step 3: Compile the executable file

verilator -Wall --trace --exe --build -cc adder_var_seq.cpp adder_var_seq.v

Step 4: Run the exectuable file and obtain the waveform file (.vcd)

./obj_dir/Vadder_var_seq

Step 5: Open the GTKWaver to open the generated trace open “GTKWaver” -> “Open New Tab” -> “Select the generated waveform.vcd” -> “click on Top” -> “Right click the signals below” -> “Recurse Import” -> “Append” Then all waveforms will show up in the Waves window.