Is the Quartus system compatible with VHDL design?
The Quartus II system includes full support for all of the popular methods of entering a description of the desired circuit into a CAD system. This tutorial makes use of the VHDL design entry method, in which the user specifies the desired circuit in the VHDL hardware descripti on language.
How are compiler directives used in VHDL source code?
11 VHDL Compiler Directives. Synopsys has defined several methods of providing circuit design information directly in your VHDL source code. Using VHDL Compiler directives, you can direct the translation from VHDL to components with special VHDL comments.
What are the VHDL synthesis attributes and directives?
A VHDL synthesis directive that directs Analysis & Synthesis to perform logic synthesis on portions of the design code that are in comments. A VHDL synthesis attribute that specifies encodings for the states modeled by an enumeration type.
What can I do with the Quartus 2 software?
The design process is illustrated by giving step-by-step instructions for using the Quartus II software to implement a very simple circuit in an Altera FPGA device. The Quartus II system includes full support for all of the popular methods of entering a description of the desired circuit into a CAD system.
How to compile VHDL files into a library?
You can also modify the Quartus II settings (“.qsf”) file for the project, and add the lines: However, you may want to determine if compiling into the “ieee_proposed” library is required, and otherwise you can just compile them into the “work” library with other files.
How is a logic circuit designed in Quartus 2?
Each logic circuit, or subcircuit, being designed with Quartus II software is called a project. The software works on one project at a time and keeps all information for that project in a single directory (folder) in the file system. To begin a new logic circuit design, the first step is to create a directory to hold its files.