HDLs are indeed similar to programming languages but not exactly the same. We utilize a programming language to build or create software, whereas we use a hardware description language to describe or express the behavioral characteristics of digital logic circuits. It is utilized in electronic design automation to express mixed-signal and digital systems, such as ICs integrated circuits and FPGA field-programmable gate arrays.
We can also use VHDL as a general-purpose parallel programming language. We utilize VHDL to write text models that describe or express logic circuits.
If the text model is part of the logic design, the model is processed by a synthesis program. The next step in the process incorporates a simulation program to test the logic design. During this step, we utilize the simulation models to characterize the logic circuits that interface to the design. We refer to this collection of simulation models as a testbench. Typically, a VHDL simulator is an event-driven simulator which means that we add each transaction to an event queue for a particular scheduled time.
Although a zero delay is allowed, it still must be scheduled, and for these scenarios we utilize a Delta delay. Statement Execution: In this mode, the triggered statements are evaluated.
Event Processing: During this mode, the events in the queue are processed. Though there is an inherent similarity in hardware designs, VHDL has processes that can make the necessary accommodations.
However, these processes differ in syntax from the parallel processes in tasks Ada. Similarly to Ada, VHDL is a predefined part of the programming language, plus, it is not case sensitive. These additional features enable VHDL to precisely represent operations that are customary in hardware.
Another feature of VHDL is it has file output and input capabilities that you can utilize as a general-purpose language for text processing. Although, we typically see them in use by a simulation testbench for data verification or stimulus.
Specific VHDL compilers build executable binaries, which afford the option to use VHDL to write a testbench for functionality verification designs utilizing files on the host computer to compare expected results, user interaction, and define stimuli. Note: Ada is a statically typed, structured, object-oriented, and imperative high-level programming language; it is an extension that derives from Pascal and other programming languages.
Its name, Ada, refers to Ada Lovelace Ada King; — , the Countess of Lovelace, who we credit as being the first computer programmer. The critical advantage of VHDL, with regard to system design utilization, is that it permits the behavior of the essential system to be verified and modeled in advance of the synthesis tools translation of the design into actual gates and wires hardware.
VHDL projects are also portable, which means that you can generate a project for one element base and then port it on another element base, such as VLSI, with a variety of technologies. Using VHDL affords the user concurrent system descriptions. VHDL is a dataflow language, which means it can simultaneously consider every statement for execution. Each of these languages runs a sequence of statements, both sequentially and a single instruction at a time.
One of the more advantageous benefits of VHDL is that its projects are multipurpose; you create the project once and you can utilize the calculation block in various other projects. Please use our site search to look for more acronyms. What does SGSN mean? What is the full form of SGSN?
What does CGDA mean? What is the full form of CGDA? Leave a Reply Cancel reply You must be logged in to post a comment. What is the full form of LQFP? What does VNTR mean? What is the full form of VNTR? Don't keep it to yourself! Add it HERE! Still can't find the acronym definition you were looking for? Use our Power Search technology to look for more unique definitions from across the web!
Search the web. Citation Use the citation options below to add these abbreviations to your bibliography. Powered by CITE. Quiz The ultimate acronym test » FM A. Frequency Moderator. Frequency Modulation. Fly Morroco. Feel Magnificent. Browse Abbreviations.
0コメント