【笔记】error 引脚冲突 ~LVDS150p/nCEO~ （digital logic) (DE2)

如下：
Error: Can't place multiple pins assigned to pin location Pin_W20 (IOC_X65_Y2_N2)
Info: Pin EA[7] is assigned to pin location Pin_W20 (IOC_X65_Y2_N2)
Info: Pin ~LVDS150p/nCEO~ is assigned to pin location Pin_W20 (IOC_X65_Y2_N2)
这个问题以前也碰到过，但时间一久又忘记了如何处理了，
我在这里把处理的方法写上：
在QII中的Assignments----Device----Device and pin option-----(选项卡)Dual purpose pin
将nCE0　的设置改为：　use as regular IO