Click to expand Verilog is a more user-friendly language, allowing code to be simpler. However, with this simplicity comes a slighlty increased risk of bugs when compared to VHDL. VHDL is a strongly typed language, meaning that often you have to write a lot of code to do simple things. However, this also means a smaller probability of bugs in your design.
Personally I prefer Verilog because it is easier and the code is more readable. Simple tasks like incrementing a variable, perform math operations, etc. In Verilog is simpler, though not perfect. Similar threads R. Started by Bhuvana Eshwari Jul 25, Replies: 1. Started by ramagandhi Jan 27, Replies: 3.
Started by thuyet Feb 12, Replies: Part and Inventory Search. Welcome to EDABoard. This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register. A VHDL design can obtain many design entities with different architectures for one entity.
Configuration statements associate the exact design entity to a component instance in a design. When there is more than one architecture in an entity, configuration statements continue to specify the desired design architecture is assigned to the entity for synthesis or simulation.
This feature is very helpful when VHDL designers need to manage a large high-level design. Following is a VHDL example code for configuration statement:. Configuration blocks are also added to Verilog When looking at Verilog and VHDL code at the same time, the most obvious difference is Verilog does not have library management while VHDL does include design libraries on the top of the code.
VHDL libraries contain compiled architectures, entities, packages, and configurations. This feature is very useful when managing large design structures. Examples of packages and configurations in VHDL are already given above. It is worth mentioning that SystemVerilog was created to enhance the weakness of Verilog language in high-level modeling by adding high-level features and constructs like in VHDL to Verilog for verification.
SystemVerilog now is widely used for IC Verification. VHDL is a very strongly typed hardware description language so VHDL code must be correctly written with matched and defined data types.
It means that there will be a compiler error if you mix data types or mismatch signals when assigning in VHDL. On the other hand, Verilog is a loosely typed language. In Verilog, you can mix data types or mismatch signals when assigning. Below is a VHDL example code for mismatching signals:. Expected width 8, Actual width is 4 ". What if you assign a 4-bit signal to an 8-bit signal in Verilog?
In other words, to model the same circuit, VHDL code normally is more verbose and longer than Verilog code because we need to perform conversions between different complex data types in VHDL due to its strong typing. The difference between Verilog and VHDL is that Verilog is a comparatively newer language, which is used to model electronic systems and it is based on C language, on the other hand, VHDL is an older language than Verilog and it is based on Ada and Pascal languages.
Verilog is a hardware description language. It is used to define electronic circuits and systems like microprocessors and flip-flops. It is based on the C language hence it is easier to learn for the people knowing C. It is a compact language that does its function effectively. It is used to describe hardware and many more like integrated circuits. It is an older language and it is based on Ada and Pascal languages.
Its projects can be used as a multipurpose program as one program can be used again with some minor changes. Verilog is a hardware description language introduced in It is similar to the C language. It is used to model electronic circuits and systems. It is using many data types that are predefined. It is easier to learn and people with background knowledge of C do not find any difficulty in learning this language.
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