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奇怪的warning

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发表于 2009-8-12 13:40:30 | 显示全部楼层 |阅读模式

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请问如下的warning是什么意思呀,???

Warning: Converted TRI buffer or tri-state bus to logic, or removed OPNDRN

Warning: Converting TRI node "RXD:inst18|data[0]" that feeds logic to a wire
Warning: Converting TRI node "RXD:inst18|data[1]" that feeds logic to a wire
Warning: Converting TRI node "RXD:inst18|data[2]" that feeds logic to a wire
Warning: Converting TRI node "RXD:inst18|data[3]" that feeds logic to a wire
Warning: Converting TRI node "RXD:inst18|data[4]" that feeds logic to a wire
Warning: Converting TRI node "RXD:inst18|data[5]" that feeds logic to a wire
Warning: Converting TRI node "RXD:inst18|data[6]" that feeds logic to a wire
Warning: Converting TRI node "RXD:inst18|data[7]" that feeds logic to a wire
Warning: Converting TRI node "RXD:inst18|data[8]" that feeds logic to a wire
Warning: Converting TRI node "RXD:inst18|data[9]" that feeds logic to a wire
Warning: Converting TRI node "RXD:inst18|data[10]" that feeds logic to a wire
Warning: Converting TRI node "RXD:inst18|addr[0]" that feeds logic to a wire
Warning: Converting TRI node "RXD:inst18|addr[1]" that feeds logic to a wire
Warning: Converting TRI node "RXD:inst18|addr[2]" that feeds logic to a wire
Warning: Converting TRI node "fifo_control:inst19|data_a[0]" that feeds logic to a wire
Warning: Converting TRI node "fifo_control:inst19|data_a[1]" that feeds logic to a wire
Warning: Converting TRI node "fifo_control:inst19|data_a[2]" that feeds logic to a wire
Warning: Converting TRI node "fifo_control:inst19|data_a[3]" that feeds logic to a wire
Warning: Converting TRI node "fifo_control:inst19|data_a[4]" that feeds logic to a wire
Warning: Converting TRI node "fifo_control:inst19|data_a[5]" that feeds logic to a wire
Warning: Converting TRI node "fifo_control:inst19|data_a[6]" that feeds logic to a wire
Warning: Converting TRI node "fifo_control:inst19|data_a[7]" that feeds logic to a wire
Warning: Converting TRI node "fifo_control:inst19|data_a[8]" that feeds logic to a wire
Warning: Converting TRI node "fifo_control:inst19|data_a[9]" that feeds logic to a wire
Warning: Converting TRI node "fifo_control:inst19|data_a[10]" that feeds logic to a wire
Warning: Converting TRI node "fifo_control:inst19|data_a[11]" that feeds logic to a wire
发表于 2009-8-12 14:18:24 | 显示全部楼层

组合逻辑环

组合逻辑环
发表于 2009-8-13 09:29:45 | 显示全部楼层
把代码贴出来看一下
发表于 2009-8-13 11:13:30 | 显示全部楼层
好怪异
发表于 2009-8-13 12:57:31 | 显示全部楼层
1.你是在什么代码情况下产生的这些警告,最好能先讲情况,然后贴出相关的代码;
2.主观一点分析,大概应该是你在内部逻辑中做了三态变量的设计。但是综合工具取消了这些三态,而是采用了组合逻辑并且反馈给wire变量的方式实现了你设计的逻辑。并且给你警告信息,便于你修改或者了解综合工具做了什么。
  这只是主观的想象你那边发生的问题,还是要你自己看看到底是怎么回事。
发表于 2009-8-13 14:46:09 | 显示全部楼层
很怪异!!
发表于 2009-8-22 22:29:48 | 显示全部楼层
的確是蠻奇怪的
发表于 2009-8-24 22:07:02 | 显示全部楼层

怎么样多赚信元啊?

怎么样多赚信元啊?
发表于 2010-4-6 19:05:04 | 显示全部楼层
我也遇到同样的问题,到底怎么解决呀
发表于 2010-4-6 20:46:55 | 显示全部楼层
友情帮顶 没遇到过
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