遭遇丢失信号--WARNING:Xst:2677 - Node of sequential type is unconnected in block .
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犯了一个低级错误,导致程序中的IR信号总是不能完整的从datapath中连接到controller中。尝试着改变代码结构,代码风格,两天下来还是不能解决问题。正当快要崩溃之际,突然想起顶层模块中,如果例化的模块信号,不用wire声明的话默认是1位的。结果两位的信号就这么被丢掉一位,查了那么久,真让人汗颜。偷懒不是件好事……
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