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| 一个很简单的小程序,想将程序内部一个Verilog小模块封装为IP。目前已将该小模块按照网上资料封装为*.ngc和*.v(只含端口定义),添加到顶层工程文件中,这个顶层工程在Synthesize、Implement Design均能通过编译,而在Generate Programming File出错,已确认管脚分配正确,不知道哪里出了问题?请教!!!!! 错误提示为:
 ERROR:PhysDesignRules:368 - The signal <oData_1_OBUF> is incomplete. The signal
 is not driven by any source pin in the design.
 ERROR:PhysDesignRules:10 - The network <oData_1_OBUF> is completely unrouted.
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