标题: TimeQuest_User_Guide [打印本页] 作者: lc1234 时间: 2015-1-6 10:07 标题: TimeQuest_User_Guide ction 1: Getting Started 8 ~: I3 Y8 n4 F* l: s ! w, D6 \! p- U3 p This first section is meant to get a user up and running as quickly as possible. It touches & r6 m. h1 o8 c8 `
on multiple topics that are detailed later, and is meant for application and a quick understanding. 7 c9 a8 h/ z! h, ]That being said, I think all users should look through this section and make sure they understand 8 E0 n' @# ?; Wit. % R6 `2 u; j: Z* n0 M0 \7 E4 p
The last portion of Getting Started covers analyzing results, which is an integral part of + ^5 F* `0 F7 r2 {, E$ ^2 aentering constraints. One can't enter core timing or I/O constraints without being able to read the ( L* ?* G0 b( w3 B2 ^
analysis reports, so it is recommended to read that section in conjunction with the information at 2 X' O3 |, K2 v: E% d
the beginning. $ w& y5 j' ^7 j( _0 G9 I9 {$ t- Z4 i3 P. \% S# R
Quartus Setup 6 z7 i) l8 [* ~* a+ I Within Quartus, there are a number of quick steps for setting up your design with 0 f! p$ v& G* A6 ~TimeQuest. These are accessed through the pull-down menu Assignments -> Settings: ' i7 ~9 X1 {$ j3 k- e5 W+ S+ {6 d1 h9 [/ K1 r$ Z/ H
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1) Along the left panel, select Timing Analysis Settings and select the "Use TimeQuest…" radio [0 d' N9 Q( y5 L5 h/ b# S
button. The Classic Timing Analyzer is the old timing analysis engine, which is not ! O( z& O, f" x0 o' P
recommended for any new designs or architectures, and will eventually become obsolete. ; b" g& Z; G6 P5 m! c0 ]. Z
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2) Select TimeQuest Timing Analyzer in the left panel. The screenshot should look like below, ' g+ i" A5 s& G% e1 Q
whereby the user can add a new SDC file. SDC stands for Synopsys Design Constraint, which is 2 S, z( j/ w3 J& P7 X' Cthe format TimeQuest uses, along with many other tools. If no .sdc file exists, we will create it 2 w$ H# P, ~) Z. a) q
in the next section. Note that SDC files are analyzed in the order listed, top to bottom. * k8 q @! N0 \; B 7 M) w2 Z( W9 W% P A% R4 a" l5 @* g' s
