ZYNQ7000（xc7v045ffg900）使用XADC时Place阶段出错。

Question

Vivado提示如下:
[Place 30-99] Placer failed with error :' Unable to place al the instance of site type XADC
Please review al ERROR , CRITICAL WARNING , and WARNING messages during placement to understand the cause for failure .

目前在mig ip核中disable了XADC，然后在BD中单独例化了一个XADC ip核，还是报错。