Specifications

CHAPTER 3: CONSTRAINT ENTRY
INTRODUCTION
56 ■ INTRODUCTION TO QUARTUS II ALTERA CORPORATION
Introduction
Once you have created a project and your design, you can use the
Quartus
®
II Settings dialog box (Assignments menu), Assignment Editor,
Pin Planner, Design Partitions window, and Timing Closure floorplan to
specify initial design constraints, such as pin assignments, device options,
logic options, and timing constraints. You can import assignments using the
Import Assignments command (Assignments menu) or export assignments
using the Export command (File menu). You can also import assignments
from other EDA synthesis tools using Tcl commands or scripts. The
Quartus II software also provides the Timing wizard (Assignments menu)
to assist in specifying initial timing constraints. Many of the settings
available from the Assign command in the MAX+PLUS
®
II quick menu can
be made in the Assignment Editor and Settings dialog box. Figure 1 shows
the constraint and assignment entry flow.
Figure 1. Constraint & Assignment Entry Flow
Quartus II
Project File (.qpf)
Quartus II
Assignment Editor
Quartus II
Settings Dialog Box
Verilog Quartus Mapping
Files (.vqm) & Quartus
Settings File (.qsf)
Quartus II
Settings File (.qsf)
from Block-Based
Design
to Quartus II
Analysis & Synthesis
Quartus II
design files
Quartus II
Pin Planner
Quartus II
Design Partitions
Window
Quartus II
Timing Closure
Floorplan