奇怪的warning

haha04358 · 发表于 2009-8-12 13:40:30

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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

bjtu_glh · 发表于 2009-8-12 14:18:24

组合逻辑环

warmheard · 发表于 2009-8-13 09:29:45

把代码贴出来看一下

疯狂的蜗牛 · 发表于 2009-8-13 11:13:30

好怪异

kuangshunlan · 发表于 2009-8-13 12:57:31

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。