Specifications

CHAPTER 2: DESIGN ENTRY
CREATING A DESIGN
ALTERA CORPORATION INTRODUCTION TO QUARTUS II ■ 45
The Quartus II software provides symbols for a variety of logic
functions—including primitives, library of parameterized modules
(LPM) functions, and other megafunctions—that you can use in the
Block Editor.
■ Create files from blocks or Block Design Files: To facilitate
hierarchical projects, you can use the Create/Update command (File
menu) in the Block Editor to create other Block Design Files, AHDL
Include Files, Verilog HDL and VHDL design files, and Quartus II
Block Symbol Files from blocks within a Block Design File. You can also
create Verilog Design Files, VHDL Design Files, and Block Symbol Files
from a Block Design File itself.
Using the Quartus II Text Editor
The Quartus II Text Editor is a flexible tool for entering text-based designs in
the AHDL, VHDL, and Verilog HDL languages, and the Tcl scripting
language. You can also use the Text Editor to enter, edit, and view other
ASCII text files, including those created for or by the Quartus II software.
The Text Editor also allows you to insert a template for any AHDL statement
or section, Tcl command, or supported VHDL or Verilog HDL construct into
the current file. AHDL, VHDL, and Verilog HDL templates provide an easy
way for you to enter HDL syntax, increasing the speed and accuracy of
design entry. You can also get context-sensitive help on all AHDL elements,
keywords, and statements, as well as on megafunctions and primitives.
Using the Quartus II Symbol Editor
The Symbol Editor allows you to view and edit predefined symbols that
represent macrofunctions, megafunctions, primitives, or design files. Each
Symbol Editor file represents one symbol. For each symbol file, you can
choose from libraries containing Altera megafunctions and LPM functions.
You can customize these Block Symbol Files and then add the symbols to
schematics created with the Block Editor. The Symbol Editor reads and edits
Block Symbol Files and MAX+PLUS II Symbol Files (.sym) and saves both
types of files as Block Symbol Files.