标题: ISE MAP的时候出错 [打印本页] 作者: 117454615 时间: 2012-6-8 17:35 标题: ISE MAP的时候出错 错误如下$ R$ F7 }' `0 ]/ F' W
ERRORack:679 - Unable to obey design constraints (LOC=CLB_R38C1.S0) which 2 z6 j* K- R& f require the combination of the following symbols into a single SLICE+ N7 h% q0 q# ]2 y
component:7 E. m, `+ u9 p9 h
FLOP symbol "Chain[37].uChain/Node[0].uNode0/uFdce" (Output Signal =. Y6 m+ \; Z" Q. }: f) u. M6 X) y
Chain[37].uChain/wOutA0<0>) ! i8 t, V" ?' u0 d9 m FLOP symbol "Chain[37].uChain/Node[0].uNode1/uFdce" (Output Signal = ! [+ @6 B. d0 R5 [, R Chain[37].uChain/wOutA1<0>)9 f" x0 w) A% {# O: Q
The set/reset signal Reset_IBUF_1 of register , ~" [9 Z" F9 m# M: u Chain[37].uChain/Node[0].uNode1/uFdce doesn't match the existing usage of the% F. Y5 x* ?! {5 q6 [- `
SR MUX. The signal Reset_IBUF_2 already uses SR. Please correct the design . G! f I/ F2 O constraints accordingly. $ t* K2 K) O$ Z请大侠帮忙