Warning: The Reserve All Unused Pins setting has not been specified, and will default to 'As output driving ground'.

Warning: Found pins functioning as undefined clocks and/or memory enables
 Info: Assuming node "clk" is an undefined clock

虽然warning不影响下载,但看了实在想弄清楚到底为什么出这些问题.所以贴出来,请高手指教啊

谢谢了

“Info: Assuming node "clk" is an undefined clock”

因为clk是时钟资源，所以需要你定义。

方法如下：

quartus

assignment->timing analysis setting...->individual clocks...

弹出individual clocks对话框，点new添加，然后输入你的clk信息就可以了

具体说明点help。