[求助] xilinx: 普通IO能驱动MMCM吗?

h2o_freely

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.

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？

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。

谢谢