HC210 datasheet(170/228 Pages) ALTERA

170 / 228 page

7–6

Altera Corporation

September 2008

HardCopy Series Handbook, Volume 1

Altera recommends you use the TimeQuest timing analyzer. You can

specify that the TimeQuest timing analyzer be used by the Quartus II

software rather than the default Classic Timing Analyzer.

The TimeQuest timing analyzer validates the timing performance of all

logic in your design using an industry-standard constraint, analysis, and

reporting methodology. It provides powerful timing analysis features

that enable thorough timing analysis of high-performance designs. The

benefits of using TimeQuest for timing analysis include these features:

■

Native SDC support

—You can leverage this powerful

industry-standard timing constraint format to achieve a higher

degree of productivity by using and reusing SDC- and Tcl-based

scripts.

■

Fast on-demand and interactive data reporting

—This feature saves

time by allowing you to request more detailed timing analysis on

critical paths only. A powerful GUI reports the timing analysis data

in an intuitive graphical format that complements the fast,

on-demand data reporting, further enhancing productivity.

Classic Timing Analyzer supports HardCopy II timing analysis.

However, TimeQuest provides more powerful timing analysis features.

Some Classic Timing Analyzer timing constraints may not be translated

from the Quartus Setting file to SDC format constraints when the design

is transferred to the HCDC, because translating these constraints is

difficult and error-prone and often requires detailed analysis of the

particular context in which the constraint is used.

The timing closure methodology used in the Quartus II software for a

HardCopy II design is shown in Figure 7–1. This diagram shows the

FPGA-first static timing analysis flow for either the TimeQuest timing

analyzer or the Classic Timing Analyzer. For the HardCopy II first flow,

the methodology is the same except that the HardCopy II compilation is

performed before the Stratix II compilation.

HC210 Datasheet(PDF) 170 Page - Altera Corporation