CTS怎么给驱动强度

jcc_h

**WARN: (IMPCCOPT-4313):        Innovus cannot determine the drive strength of clk_pad, which drives the root of clock_tree clk_main. To time this clock tree, Innovus will assume that it is driven by a driver cell with a fixed output slew of 0.000 and a maximum driven capacitance of 0.000. It is recommended that you set the source_driver property on this clock tree appropriately in order to correct this assumption.

dingyisuper1

看这说明，你set source_driver试试呢

jcc_h

   

dingyisuper1 发表于 2025-11-10 10:27
看这说明，你set source_driver试试呢

怎么用呢

aqiqiqiqi

约束是不是没设driving cell