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how preserve ports when use delete_unloaded_undriven command

daijin

Hi All,

I want use "delete_unloaded_undriven" command to remove un-used pins in subdesign. But when I used this command, it also removed my top-level ports. I've some constant output ports in design that I don't want to remove them. How let RC only remove sub-module un-used pins, but keep the top-level ports?

Thanks.

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