在 Astro 當 Detail Route 後出現 violation 如何解?

hgby2209

Detail Route 後出現 violation 如何解? 我試過 "Search & Repair" 很多次但也都解
不了 ....
外包的工程師用同樣的 Area 可作完 APR, 我自己作已經放大 size 卻一直卡在 Detail Route
2 w& c8 ?. s: {1 d這個 step .....
& e. e* u- j8 p# l! k請問各位前輩當你們遇到此問題時都是怎麼去解的呢?

wiwi111

P&R 時最重要要去看log,或在跑的過程就有show error, 但
layout 的缺點都是只看結果有錯,卻不知log 中就有告訴你有
問題,再檢查看看吧!!!

hgby2209

沒有 congestion 再加上 detail route 之前也都沒 violation 為何在 detail route 時會出現這麼多 violation 呢?

jianping

執行以下SCRIPT,下面CELL NAME我寫XXXX請換成你的CELL NAME
axgSearchRepair
( V; J, i, B' V2 S! {7 _setFormField "Search & Repair" "Search & Repair Loop" "0"
setFormField "Search & Repair" "connect tie off" "0"
! _% k8 y- q: `, a! P5 hsetFormField "Search & Repair" "connect open nets" "0"
( L, V# V; v; l" ~* o3 O, T$ asetFormField "Search & Repair" "rerun DRC" "1"
formOK "Search & Repair"
6 [4 M" F/ q4 f3 u8 PgeLoadErrorCell
setFormField "Load Error Cell" "Cell Name" "XXXXXXXXXX"
6 m( W) A% C& E' f5 s: J1 D0 vformOK "Load Error Cell"
geAllError
; J) h* \! f/ \& cgeQueryError
8 k& h1 s6 \6 `) ]) L然後去點選一閃一閃的錯誤地方,點選後看面板看它顯示是什麼錯誤

hgby2209

感謝版主大大的回覆 ~~ 版主大大所述我早知道... 且也做過了 ~~ 如此做是知道哪裡 violation & 得知 violation 的 status ,
3 q; i! u1 [. V" a) K我現在想知道的是如何 Fix violation, 由 QueryError 得知的 Infomation , 並無助於如何 fix violation,
/ C' ?5 q2 f- f+ }8 o有哪位大大知道要如何 fix routing violation ?

4 {1 [7 d% Y. {, _% s[ 本帖最後由 hgby2209 於 2008-11-29 02:10 PM 編輯 ]

jianping

其實我講的用意是在釐清你的VIOLATION是屬於哪類,比如說,如果是ANTENNA ERROR那我才能告訴你如何解 ,如果是DRC ERROR那就要去分析為啥ASTRO認為是DRC ERROR,也許也會是假錯,有時甚至只是NOTCH,那~~~應該只是你ROUTE COMMOM OPTION沒設好,所以你可能要分析一下你的VIOLATION是哪一類.

hgby2209

感謝版主大大的回覆 ~~
我目前還沒 run 到要修 notch & antenna , golbal rout --> track assigment 都 OK 了 ~~  但到 Detail route 就 ....
我 show 一些 info. 給大家看看有沒解...
Congestion info. after global route:
6 |! m' K; _3 \) X& X# y0 C6 X---------------------------------------------------------------
Initial routing completed.
Initial. Routing result:
/ |4 @5 U, n: B! xInitial. Both Dirs: Overflow = 2057 Max = 3 GRCs = 1828 (0.1%)
Initial. H routing: Overflow = 720 Max = 3 (3 GRCs) GRCs = 600 (0.0%)
5 Q$ N- ]& r. L# v% JInitial. V routing: Overflow = 1337 Max = 3 (5 GRCs) GRCs = 1228 (0.1%)
Initial. METAL1   : Overflow = 401 Max = 2 (1 GRCs) GRCs = 400 (0.0%)
Initial. METAL2   : Overflow = 1289 Max = 3 (3 GRCs) GRCs = 1183 (0.1%)
; q& t! h: h+ {+ n; Z# ^0 WInitial. METAL3   : Overflow = 281 Max = 2 (12 GRCs) GRCs = 269 (0.0%)
Initial. METAL4   : Overflow = 48 Max = 1 (48 GRCs) GRCs = 48 (0.0%)
' D( V' i9 O" G4 G! z: f7 c2 @+ [9 ^Initial. METAL5   : Overflow = 38 Max = 2 (9 GRCs) GRCs = 29 (0.0%)
--------------------------------------------------------------------------------------------------
Begin Phase 4 ...
- W. ?' _! f0 }1 t- e. u2 Fphase4. Routing result:
phase4. Both Dirs: Overflow = 120 Max = 2 GRCs = 117 (0.0%)
phase4. H routing: Overflow = 60 Max = 2 (1 GRCs) GRCs = 59 (0.0%)
. h( e; U/ s; @, v3 U, t" y* Qphase4. V routing: Overflow = 60 Max = 2 (2 GRCs) GRCs = 58 (0.0%)
phase4. METAL1   : Overflow = 57 Max = 2 (1 GRCs) GRCs = 56 (0.0%)
6 d' p' H4 ^$ H, c/ b  u' Mphase4. METAL2   : Overflow = 55 Max = 2 (2 GRCs) GRCs = 53 (0.0%)
1 o4 L- f+ c2 I0 cphase4. METAL3   : Overflow = 3 Max = 1 (3 GRCs) GRCs = 3 (0.0%)
phase4. METAL4   : Overflow = 5 Max = 1 (5 GRCs) GRCs = 5 (0.0%)
phase4. METAL5   : Overflow = 0 Max = 0 GRCs = 0 (0.0%)
----------------------------------------------------------------------------------------------------

hgby2209

感謝版主大大提醒 ~~ 我改了一個 routing option 就 pass Detail route 了 ~~
Original :
axgSetRouteOptions
. ^6 T: x4 f0 F" R0 F4 S: asetFormField "Route Common Options" "Timing Driven" "1"
: a. I. \" v7 E4 W& Q0 x* N( \setFormField "Route Common Options" "Track Assign Timing Driven" "1"
0 {1 t8 k, [+ I# u# IsetFormField "Route Common Options" "Track Assign Timing Weight" "6"
5 F% d+ q1 i5 w- [8 T7 w6 ^; wsetFormField "Route Common Options" "timing weight" "5"
setFormField "Route Common Options" "Track Assign Timing Weight" "5"
4 u0 h) k5 k8 B) G) u$ t$ c+ \7 UsetFormField "Route Common Options" "Skew Control" "1"
formOK "Route Common Options"

New :
. p2 g( j% n+ F% {& H8 ?1 xaxgSetRouteOptions
setFormField "Route Common Options" "Timing Driven" "1"
setFormField "Route Common Options" "Track Assign Timing Driven" "1"
- `) V& `" h  TsetFormField "Route Common Options" "Track Assign Timing Weight" "6"
setFormField "Route Common Options" "timing weight" "5"
4 y8 W" u/ f$ W( W: }6 l- @; x+ K4 OsetFormField "Route Common Options" "Track Assign Timing Weight" "5"
setFormField "Route Common Options" "Skew Control" "1"
6 i6 m0 P0 W* c+ e/ w' p' W9 EsetFormField "Route Common Options" "Single-row/column via array" "optimize"
setFormField "Route Common Options" "Incremental" "1"
0 C0 v' V) G% c1 U3 i: HformOK "Route Common Options"

! Z1 }+ |# s% W  E* S* ^& v6 R差別在於
setFormField "Route Common Options" "Single-row/column via array" "optimize"
setFormField "Route Common Options" "Incremental" "1"
# U, }+ L3 A  W) [( ]; s8 d  c不知版主大大的 Route Common Options 設定為何?

aaaach

thanks for you
i have the some problem, the astro show me that more than 7000 violation
3 F  ~* {: J% Lmost of them are DRC error.
  i don't know why there are so much violation and how to fix them.
after sizing up the die size, they will disappear . but this is not my requirement.
* {, K% e6 D1 ]  M! Z  ^+ ~i will try to modify routing option too, thanks