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
6 d3 f/ g2 X! `3 H  n; k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
這個 step .....
請問各位前輩當你們遇到此問題時都是怎麼去解的呢?

aaaach

thanks for you
8 E( `- r' U7 e7 w) m' H, di have the some problem, the astro show me that more than 7000 violation
most of them are DRC error.
/ V9 E5 V  k0 `) C# C  i don't know why there are so much violation and how to fix them.
3 X  |& k& ]1 G  `! jafter sizing up the die size, they will disappear . but this is not my requirement.
i will try to modify routing option too, thanks

hgby2209

感謝版主大大提醒 ~~ 我改了一個 routing option 就 pass Detail route 了 ~~
2 t9 C1 V6 V' C- _! DOriginal :
# c! L0 K# V9 x2 K0 e  G' ]- maxgSetRouteOptions
setFormField "Route Common Options" "Timing Driven" "1"
setFormField "Route Common Options" "Track Assign Timing Driven" "1"
setFormField "Route Common Options" "Track Assign Timing Weight" "6"
setFormField "Route Common Options" "timing weight" "5"
setFormField "Route Common Options" "Track Assign Timing Weight" "5"
* W8 ^$ g3 D/ L% usetFormField "Route Common Options" "Skew Control" "1"
formOK "Route Common Options"

. O; y! h5 M/ ?/ Q- b3 ZNew :
axgSetRouteOptions
1 }2 ~4 R2 P9 m2 f) h$ n: ZsetFormField "Route Common Options" "Timing Driven" "1"
% \: f1 l% K2 O( U* u4 F0 F1 d/ esetFormField "Route Common Options" "Track Assign Timing Driven" "1"
& X7 {; B2 f7 d* S4 gsetFormField "Route Common Options" "Track Assign Timing Weight" "6"
7 K0 C, Y% ]; f7 @4 g7 q( m. MsetFormField "Route Common Options" "timing weight" "5"
5 ]$ Z% U" k& A' u& p+ @" \setFormField "Route Common Options" "Track Assign Timing Weight" "5"
% z8 F# ]4 q, u! S) |( XsetFormField "Route Common Options" "Skew Control" "1"
$ V/ t5 X! [* i* c  u+ AsetFormField "Route Common Options" "Single-row/column via array" "optimize"
setFormField "Route Common Options" "Incremental" "1"
5 v8 D8 k* U; Z" b" Q* jformOK "Route Common Options"

差別在於
setFormField "Route Common Options" "Single-row/column via array" "optimize"
0 O" B. }- V+ e/ o% H4 _" A+ [setFormField "Route Common Options" "Incremental" "1"
, ]: ]+ [: h2 q* i3 N. X: x0 n不知版主大大的 Route Common Options 設定為何?

hgby2209

感謝版主大大的回覆 ~~
  M- i) B) \) ?8 q8 U0 x* r) }6 ?# C$ _我目前還沒 run 到要修 notch & antenna , golbal rout --> track assigment 都 OK 了 ~~  但到 Detail route 就 ....
4 H2 N3 K5 H) p% V# N! R1 q我 show 一些 info. 給大家看看有沒解...
Congestion info. after global route:
5 |2 B; Y& [/ `. O/ S( a9 a---------------------------------------------------------------
' s) p; r' P/ F. r" p2 wInitial routing completed.
1 f& B3 o- u) c9 ~* J8 s; lInitial. Routing result:
' K  E- h  I$ O! R5 ^Initial. Both Dirs: Overflow = 2057 Max = 3 GRCs = 1828 (0.1%)
Initial. H routing: Overflow = 720 Max = 3 (3 GRCs) GRCs = 600 (0.0%)
# t; C' h2 v  TInitial. V routing: Overflow = 1337 Max = 3 (5 GRCs) GRCs = 1228 (0.1%)
8 m1 P4 v9 t( o$ l' y% {Initial. METAL1   : Overflow = 401 Max = 2 (1 GRCs) GRCs = 400 (0.0%)
Initial. METAL2   : Overflow = 1289 Max = 3 (3 GRCs) GRCs = 1183 (0.1%)
0 s/ C  @6 n0 d9 E2 }Initial. METAL3   : Overflow = 281 Max = 2 (12 GRCs) GRCs = 269 (0.0%)
$ ~- D& y* W" D! @; r' w" ~Initial. METAL4   : Overflow = 48 Max = 1 (48 GRCs) GRCs = 48 (0.0%)
Initial. METAL5   : Overflow = 38 Max = 2 (9 GRCs) GRCs = 29 (0.0%)
--------------------------------------------------------------------------------------------------
& O$ |, t6 B. J$ ^/ b* A4 o$ XBegin Phase 4 ...
phase4. 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%)
1 @1 K9 u+ q, tphase4. V routing: Overflow = 60 Max = 2 (2 GRCs) GRCs = 58 (0.0%)
phase4. METAL1   : Overflow = 57 Max = 2 (1 GRCs) GRCs = 56 (0.0%)
phase4. METAL2   : Overflow = 55 Max = 2 (2 GRCs) GRCs = 53 (0.0%)
phase4. 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%)
----------------------------------------------------------------------------------------------------

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 ~~ 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 ,
$ g# T( ]$ `8 E0 l3 \3 U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,
/ X+ i3 f6 `' R: g1 o0 w有哪位大大知道要如何 fix routing violation ?
1 }3 j- X2 C% o6 C* j, y
! P3 N2 _; E$ I7 g9 T[ 本帖最後由 hgby2209 於 2008-11-29 02:10 PM 編輯 ]

jianping

執行以下SCRIPT,下面CELL NAME我寫XXXX請換成你的CELL NAME
' e9 Y6 X- t, Z! L0 q; }$ m3 n5 t, S! zaxgSearchRepair
3 O4 ]* a3 k' ZsetFormField "Search & Repair" "Search & Repair Loop" "0"
  b/ x1 x9 E5 n0 o) tsetFormField "Search & Repair" "connect tie off" "0"
setFormField "Search & Repair" "connect open nets" "0"
setFormField "Search & Repair" "rerun DRC" "1"
7 G; z; o+ x; `: DformOK "Search & Repair"
geLoadErrorCell
setFormField "Load Error Cell" "Cell Name" "XXXXXXXXXX"
; `/ v" U0 Z  ^, R1 }formOK "Load Error Cell"
' M) J5 {2 e3 v# h4 \) D; GgeAllError
& c1 W0 J0 x8 P9 {4 |( }geQueryError
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

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?

wiwi111

P&R 時最重要要去看log,或在跑的過程就有show error, 但
$ \( s0 ^9 n0 U" K4 \. r5 x6 ilayout 的缺點都是只看結果有錯,卻不知log 中就有告訴你有
' S& U, ]5 Z& i6 D- e/ C問題,再檢查看看吧!!!