马上注册，结交更多好友，享用更多功能，让你轻松玩转社区。
您需要 登录 才可以下载或查看，没有账号？注册
x
本帖最后由 老阮 于 2014-11-11 22:15 编辑
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. | 
/2 
eetop公众号
创芯大讲堂
创芯人才网
发表于 2014-11-11 22:05:25
楼主
