This is a known issue to be fixed in a future release of the core.
To generate the core for VC709, select the correct part and package for VC709 and select VC707 board in the core customization GUI; this will generate the core for VC709. In a future release, the VC707 option will be replaced by VC709.
Note: "Version Found" refers to the version where the problem was first discovered. 该问题可能也出现于较早版本，但未对较早版本进行特定测试。