Due to some special reason, I want to use calibre for extracting a small digital block which was placed and routed by Encounter. The flow I did as below:
1. Implementing the digital block as usual and write the design to an OA libarary.
2. Using Virtuoso to open the saved design. But calibre interface is disapear on the menu bar even thougth it was there when opening other layout cells. Is there any reason for this?
3. I streamout the design into gds by virtuoso and encounter as well. The gds exported by virtuoso can be extracted pex with calibre, but it did not recognize pin names properly. The gds from encounter cause an error that it refer to unknown cells.
I am wondering that if I adopted a correct flow for extracting pex of a post PnR block with calibre correctly?
Any suggest is strongly appreciated. Thanks.