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
這個 step .....
+ Y" u6 x/ q9 C0 m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
3 `, `8 {. S6 u& ^; H$ elayout 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
: E& J- K0 z. w0 Z& p: H+ r! naxgSearchRepair
setFormField "Search & Repair" "Search & Repair Loop" "0"
+ T& U' m/ `9 O/ ?1 S' a5 p& UsetFormField "Search & Repair" "connect tie off" "0"
setFormField "Search & Repair" "connect open nets" "0"
setFormField "Search & Repair" "rerun DRC" "1"
/ e& r, J9 ?3 c. x+ y, M7 SformOK "Search & Repair"
% [+ V/ L# z1 @* A# ^6 AgeLoadErrorCell
setFormField "Load Error Cell" "Cell Name" "XXXXXXXXXX"
formOK "Load Error Cell"
geAllError
+ O9 p2 z' Z( q- H/ n2 hgeQueryError
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 ,
5 m& z. N0 O. Z# S" H3 [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,
有哪位大大知道要如何 fix routing violation ?
3 D9 x3 k5 s3 D1 `6 ~* p4 U
[ 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:
---------------------------------------------------------------
Initial routing completed.
* C4 J, Z. C2 K$ O, h4 oInitial. Routing result:
Initial. Both Dirs: Overflow = 2057 Max = 3 GRCs = 1828 (0.1%)
/ j6 D7 {( {% Q% a" M, @0 {Initial. H routing: Overflow = 720 Max = 3 (3 GRCs) GRCs = 600 (0.0%)
4 `9 K7 h  E$ q" ZInitial. 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%)
Initial. METAL3   : Overflow = 281 Max = 2 (12 GRCs) GRCs = 269 (0.0%)
3 o1 k, A' G% `* h; U# SInitial. METAL4   : Overflow = 48 Max = 1 (48 GRCs) GRCs = 48 (0.0%)
0 [  \  b! e  m- n  FInitial. METAL5   : Overflow = 38 Max = 2 (9 GRCs) GRCs = 29 (0.0%)
--------------------------------------------------------------------------------------------------
Begin Phase 4 ...
& h' ~5 J  _* S7 ^$ Lphase4. 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%)
phase4. V routing: Overflow = 60 Max = 2 (2 GRCs) GRCs = 58 (0.0%)
4 w+ M1 \& _2 Lphase4. METAL1   : Overflow = 57 Max = 2 (1 GRCs) GRCs = 56 (0.0%)
8 L) G& R# D  [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%)
6 l/ {# \( L+ Z' I' {) ?. [phase4. METAL5   : Overflow = 0 Max = 0 GRCs = 0 (0.0%)
' k6 F/ A8 b: H  }! m----------------------------------------------------------------------------------------------------

hgby2209

感謝版主大大提醒 ~~ 我改了一個 routing option 就 pass Detail route 了 ~~
Original :
, M8 B# s: n# X$ ^axgSetRouteOptions
: U+ `4 o& K1 P0 n& e3 M0 B. {setFormField "Route Common Options" "Timing Driven" "1"
3 [* U/ F1 |. P, J; x$ `0 a$ j- R- lsetFormField "Route Common Options" "Track Assign Timing Driven" "1"
setFormField "Route Common Options" "Track Assign Timing Weight" "6"
8 N: Z) B4 z6 N* HsetFormField "Route Common Options" "timing weight" "5"
4 y' f$ N  W# y1 D+ e, i) I8 gsetFormField "Route Common Options" "Track Assign Timing Weight" "5"
setFormField "Route Common Options" "Skew Control" "1"
formOK "Route Common Options"
9 D2 l- n  P% `( K1 ~! H- z% T
New :
axgSetRouteOptions
* k  }# g. a% d1 N9 _/ o" msetFormField "Route Common Options" "Timing Driven" "1"
setFormField "Route Common Options" "Track Assign Timing Driven" "1"
setFormField "Route Common Options" "Track Assign Timing Weight" "6"
" U8 j" O3 P* A7 S( J2 nsetFormField "Route Common Options" "timing weight" "5"
0 `# d4 L& l7 i0 j8 O, @( A; m- vsetFormField "Route Common Options" "Track Assign Timing Weight" "5"
setFormField "Route Common Options" "Skew Control" "1"
" W- @; E6 u4 HsetFormField "Route Common Options" "Single-row/column via array" "optimize"
setFormField "Route Common Options" "Incremental" "1"
formOK "Route Common Options"
$ k6 L$ R( f8 Q
差別在於
setFormField "Route Common Options" "Single-row/column via array" "optimize"
* u; l, M4 M+ Q. T+ c: M! ?- f! OsetFormField "Route Common Options" "Incremental" "1"
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
- T' c) A5 L2 ^( X5 G, cmost of them are DRC error.
3 r4 f. ]+ y; S7 y5 U" r# U! g- F  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.
i will try to modify routing option too, thanks