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TimeQuest_User_Guide

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发表于 2015-1-6 10:07 | 只看该作者 回帖奖励 |倒序浏览 |阅读模式

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x
ction 1: Getting Started  
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          This first section is meant to get a user up and running as quickly as possible.  It touches  2 y# b7 o  G! J, i& c  k& E
on multiple topics that are detailed later, and is meant for application and a quick understanding.   
- q/ M0 @5 \4 a3 ZThat being said, I think all users should look through this section and make sure they understand  4 }2 }- d/ T! S
it.  ; a. d. h1 I5 E8 b/ w8 R/ u
          The last portion of Getting Started covers analyzing results, which is an integral part of  
( z. r3 j0 {+ E3 v) Fentering constraints.  One can't enter core timing or I/O constraints without being able to read the  
" E9 X8 ^2 L( R+ v* ^% c4 j" Ganalysis reports, so it is recommended to read that section in conjunction with the information at  
3 }4 q9 y3 d5 @& Kthe beginning.    2 k, N; r& B; u( u! e! T, W
  e: _- f6 U( x+ z" @7 _
Quartus Setup  
" l: O. ?+ W6 v6 k+ g1 B- U" t          Within Quartus, there are a number of quick steps for setting up your design with  ( _- H' }' [8 N1 @: S6 ^* _
TimeQuest.  These are accessed through the pull-down menu Assignments -> Settings:  3 h) y* ~" o  y! y( n
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1)  Along the left panel, select Timing Analysis Settings and select the "Use TimeQuest…" radio  
9 B$ M; n' x# ^9 t/ N$ g- O8 x; w; qbutton.  The Classic Timing Analyzer is the old timing analysis engine, which is not  5 C$ a' b& ]( ]1 r# R( z
recommended for any new designs or architectures, and will eventually become obsolete.   
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* a/ }/ ^; V8 X, x% f6 n1 b# n5 [2)  Select TimeQuest Timing Analyzer in the left panel.  The screenshot should look like below,  , q! O/ R2 x' g" C( y3 Y1 x
whereby the user can add a new SDC file.  SDC stands for Synopsys Design Constraint, which is  
9 ?$ r' Y1 r& s3 q7 I0 u- m8 u) o9 sthe format TimeQuest uses, along with many other tools.  If no .sdc file exists, we will create it  8 B  S0 q0 d' g+ [
in the next section.  Note that SDC files are analyzed in the order listed, top to bottom.  7 ?5 H! Y  `6 M+ H. j  G2 V3 w
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TimeQuest_User_Guide.pdf

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