map的时候总是报错 :ERROR : Place : 1155 - A clock IOB/MMCM clock component pair have been found MMCM site pair. The clock IOB component <xx>is placed at site <M22>. the corresponding MMCM component <XXX> is placed at site <MMCM_ADV_X0Y7>.The clock IO can use the fast path between the IOB and the clock manager if 3 s" m* Z$ }* A$ z s% e- Q1 c* Va) the IOB is placed on a local clock capable IOB site in the same horizontal clock region pair as the MMCM site (fastest dedicated path), {. i# h% y; X9 b: A/ J2 Zor b) the IOB is placed on a global clock capable IOB site which has a dedicated fast path to all MMCM sites. H% ^5 b3 ^; e3 n7 ~5 y! t# s; e
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ISE建议用 CLOCK_DEDICATED_ROUT = FALSE 来使error变为warning。 ! X3 ]) S4 u% B& p% P : A* P) J6 y+ P0 p7 @! W+ g请问,是否还有别的方法? j6 v' }; R# q6 z
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有的情况即时使用CLOCK_DEDICATED_ROUT = FALSE,还会出现: * g/ O$ E, { t1 Y) z+ t9 g! }+ XphysDesignRules:2053 - unsupported MMCM_ADV configuration. The signal xx on the CLKIN1 pin of MMCM_ADV comp xxx with COMPENSATION mode ZHOLD must be driven by a clock capable IOB. 7 v6 x" t5 n* ^/ M 5 F2 y9 u7 j- o3 d+ C. w请教,这个如何解决? 5 l- _7 g$ ^: ~4 |: l, b因为pcb已经做好,pin的位置都固定了,没法把时钟信号重新连dao clock capable IOB的pin上了。( b }! b1 J0 o
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谢谢