What is Verilog?
- Verilog is a hardware descriptive language that is used for modeling digital systems at many levels of abstraction ranging from algorithmic-level to gate-level to the switch-model. The complexity of a digital system could vary from that of a simple gate to a complete electronic system or anything in between. The digital system can be expressed hierarchically and the timing can be modeled within the same description for the whole system.
- The Verilog HDL is an IEEE standard – number 1364. The first version of the IEEE standard for Verilog was published in 1995. A revised version was published in 2001; this is the version used by most Verilog users. A further revision of the Verilog standard was published in 2005, though it has little extra compared to the 2001 standard. SystemVerilog is a huge set of extensions to Verilog and was first published as an IEEE standard in 2005.
Importance of Verilog
- Verilog is preferred by 99% of the industries and is especially prominent in RTL. It is easier to upgrade your skillset to include SystemVerilog and SystemC if you are working in Verilog HDL.
- To model a digital circuit, Verilog is necessary to write the codes after the design specification is fully understood and before the netlist is generated before synthesis. If you are associated with RTL coding and building module-level test benches, then Verilog is the right language to proceed with.
Difference between Verilog over VHDL
- VHDL is strongly typed, deterministic and more verbose whereas Verilog is weakly typed, more concise and only deterministic if you follow some rules carefully, with predefined data types.
- VHDL syntax is non-C like whereas Verilog is more C like.
- VHDL has a lot of programming constructs but lacks low-level modeling capabilities for accurately representing hardware. Whereas Verilog is good at hardware programming but lacks in having higher-level programming constructs.
You’ll be able to understand the basic syntax and different modeling styles in Verilog HDL programming. You’ll also apply this knowledge to coding basic digital electronic circuits. You’ll be able to write the testbench, generate the RTL schematic and observe the behavior of your module using wave diagrams.
Our courses are free and will always be.
- Gate level modeling
- Dataflow modeling
- Behavioral modeling
- Verilog coding of digital circuits (With testbench)
- Logic gates