Xst:2035 - Port <clk> has illegal connections. This port is connected to an input buffer and other components.
网上解决办法
具体做法选中synthesize,然后process->properties->Xilinx Specific Options,把add I/O buffer 的勾去掉。
去掉勾后,synthesize通过
但是又会出现新的错误
NgdBuild:924 - input pad net 'clk' is driving non-buffer primitives:
应该怎么彻底解决?