i am using Encounter 13.1 and a STM 28FDSOI kit. Floorplanning and prePlace of the design run smoothly but when I try a timeDesign, trialrout exits with the following error:
**ERROR: (ENCTR-7108): Two adjacent routing layers M8 and M9 are in the same preferred direction.trialRoute does not support this design style and will exit.
Where is this problem located ? Is it a LEF isssue, do I need to add another lef file?
Hey Kary, thanks!
The upper layers (above M8) all had the same direction. Since this is a tech LEF provided by CMP I am wondering why one should do that ?!