OpenSource_verilog

A brief go through for writing and simulating verilog codes using open source softwares- iverilog and GTKwave

iverilog & GTKwave:

These can be downloaded and installed from the source below: http://bleyer.org/icarus/

1. select your suitable version and install using "Complete Installation(Installs GTKwave also)" option.
2. Also check 'add to path' option while installing.

commands to run:

A) Verilog on iverilog:

In here I have used vscode powershell/terminal only to run the commands below directly.

1) iverilog -o output_filename.vvp input_filename.v

2) vvp output_filename.vvp

B) Simulation on GTKwave:

1) gtkwave output_filename.vcd

After the UI open select the module, and then select and put the available signals to view window.