Preserve the hierarchy during the scan chain reodreing

Dear guys,

I am using the Astro place and route tool.
I need your help to complete the scan chain optimization process.

Before the placement process I delete the chains, and that’s ok.

But before the optimizations of the chains I need to run this command "astintHierPreservation" to preserve the hierarchy. (I attached Astro help for the reasons to save the hierarchy and the "astintHierPreservation" command)

I don’t really know what to fill in the preservation form, I tried to fill in it what the name of the project and etc but Astro said that this is not the right "input" for it.

I tried to optimize the chains without to preserve the hierarchy (a time before) and I encountered with problems in the next stage in Astro flow.

Try to help, please.

Freddie.

Hi!
when you are binding the netlist, you might have entered the cell which needs to be expanded, give the same name here, it might solve the problem

rgds
__sree