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请教各位路过的大神三个问题:
第一个问题:输入输出的驱动能力跟负载的值要多大,在哪一步设置?还是说前端决定,后端是不用理会的?
第二个问题:导入设计,需要check_timing吗?我试着用这个命令,出现如下图的warning,不知道有什么作用?
第三个问题:corner这个警告是可以忽略的吧?
WARNING (IMPFP-7236): DIE's corner: (1032.245000 , 1028.160000) is NOT on PlacementGrid, Please use command fpiGetSnapRule to check current Grid settings. And use command fpiSetSnapRule to change which grid to snap to. Command floorplan can be used to fix this issue.
WARNING (IMPFP-7238): CORE's corner: (1032.245000 , 1028.160000) is NOT on PlacementGrid, Please use command fpiGetSnapRule to check current Grid settings. And use command fpiSetSnapRule to change which grid to snap to. Command floorplan can be used to fix this issue.
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