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set_input_delay的选项-source_latency_included
如果指定该选项是代表输入延迟已经加上了源延迟还是没有加上源延迟？
altera的帮助手册中有下面的这句话：
Input delays can already include clock source latency. By defaultthe clock source latency of the related clock is added to the input delay value,but when the -source_latency_included option is specified, the clock sourcelatency is not added because it was factored into the input delay value.
再补充一个，下面这段话是啥意思来着？
By default, set_input_delay removes any other input delays to theport except for those with the same -clock, -clock_fall, and -reference_pin combination.Multiple input delays relative to different clocks, clock edges, or referencepins can be specified using the -add_delay option. |
阿莫论坛20周年了！感谢大家的支持与爱护！！
知道什么是神吗？其实神本来也是人，只不过神做了人做不到的事情 所以才成了神。 （头文字D, 杜汶泽）
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发表于 2014-11-12 14:19:00
楼主