Learn VERILOG with Real Code Examples

Install Icarus Verilog (iverilog)

Install GTKWave for waveform analysis

Use vendor tools (Vivado/Quartus/Riviera/ModelSim)

Set PATH for simulation tools

Create and run a simple Verilog testbench

Install Verilog simulator

Install FPGA vendor tools

Set environment paths

Configure waveform viewer

Create simulation + build scripts

Xilinx constraints (.xdc)

Quartus QSF files

Simulation scripts (.do)

Memory initialization (.hex/.mif)

Vendor IP Core configuration files

iverilog -o output.vvp file.v

vvp output.vvp

gtkwave waveform.vcd

vivado -mode tcl

quartus_sh --flow compile

Used globally across semiconductor industry

Supports binary/hex/octal numeric formats

Vendor tools support localized UI

Common across US, EU, and Asia

Open-source adoption worldwide

C-like syntax easy for beginners

Large amount of educational material

Lightweight coding style

Supported by virtually all EDA tools

Open-source simulator support

No GUI - hardware-level coding

Waveforms analyzed via GTKWave

FPGA I/O mapped via constraints

Testbench simulation drives input/output

UART/LED/debug signals for feedback

Regs store state in sequential logic

Wires connect combinational logic

Non-blocking assignments update registers

Parameters configure design

Testbenches manage simulation-only state

Bit vectors (e.g., [7:0])

Memories via reg arrays

Parameters for constants

Continuous assignments

Bus signals for complex systems