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Checking for Invalid References) `1 U  @* F6 T" `: Y  W7 K, G. y 
ERROR [DRC0026]   This reference has already been assigned to a different package type. U2:  SCHEMATIC1, EP2C20 BANK1 AND BANK2  (4.00, 2.10)  
9 `& ~$ `) E9 j% V0 Z" wERROR [DRC0026]   This reference has already been assigned to a different package type. U2:  SCHEMATIC1, EP2C20 BANK1 AND BANK2  (9.70, 2.00)  
9 R- j) ]  s8 S! BERROR [DRC0026]   This reference has already been assigned to a different package type. U2:  SCHEMATIC1, EP2C20 BANK3 AND BANK4  (9.80, 2.10) 3 B8 D4 \& |6 h) Y 
ERROR [DRC0026]   This reference has already been assigned to a different package type. U2:  SCHEMATIC1, EP2C20 BANK3 AND BANK4  (4.40, 2.10)  
7 g$ l. d1 H7 \ERROR [DRC0026]   This reference has already been assigned to a different package type. U2:  SCHEMATIC1, EP2C20 BANK5 AND BANK6  (2.60, 2.30)  
( t! o! B/ O( P9 Z& LERROR [DRC0026]   This reference has already been assigned to a different package type. U2:  SCHEMATIC1, EP2C20 BANK5 AND BANK6  (8.00, 2.30)  
2 r4 J' P" N7 s0 R3 hERROR [DRC0026]   This reference has already been assigned to a different package type. U2:  SCHEMATIC1, EP2C20 POWER AND CONFIG  (2.30, 1.40) " P  @) Y1 E8 [8 }) }& l 
ERROR [DRC0026]   This reference has already been assigned to a different package type. U2:  SCHEMATIC1, EP2C20 POWER AND CONFIG  (4.40, 6.40)  
" [, Z  O' m: J" l) `, {我调用元件的时候操作方法一样,但只有BANK7 AND BANK8 没有报错,其余几个都报错了. 
8 O% V' O/ d7 t6 {& x还有就是我在多页原理图中使用分层端口符号,结果报错: 
1 r1 K) C" e; m: ~ERROR [DRC0003]   Port has a type which is inconsistent with other ports on the net DRAM_CKE:  SCHEMATIC1, EP2C20 BANK1 AND BANK2  (2.70, 4.80)  
! C7 s( v1 L, V( P我是在一个电路图上设置端口为output,另一个图上则为input,结果就产生上面的错误,改成一致的就没问题了,但我不明白的是,从原理上说不是一个input,一个output才连接正常吗?为什么都是input或output才可以?我看网上下载的原理图也是一个input,一个output? 
8 c8 Q; d& `: j- W1 w& I不知道怎么办了; A' A, m  `, a. L. b  I! S/ j 
请教大家怎么修改啊.谢谢了7 R9 f; r: G# u* A# V/ H 
1 }& K$ ~; p9 U+ U 
[ 本帖最后由 elmma 于 2008-3-2 13:36 编辑 ] |   
 
 
 
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