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as a test case I have a mixed design with 4 rows only. 3 standard core cell rows and 1 second row, that has a multiple of standard cell row height & pitch. Site definition is done properly. The design contains 2 cells only, one per each row. I created the floorplan, defined the globalNetConnect rules, routed the power. Placement and trialroute work fine. Everything is on grid.
Tech LEF is done properly
Phase 1l Overflow: 0.00% H + 0.00% V (0:00:00.0 420.7M)Congestion distribution:Remain cntH cntV---------------------------------------------------------------------------- 1: 0 0.00% 3 0.27% 2: 0 0.00% 3 0.27% 3: 0 0.00% 6 0.53% 4: 98 8.73% 4 0.36% 5: 1024 91.27% 1106 98.57%
When I start NanoRoute I got this last line and it hangs up ... for hours maybe days.
#NanoRoute Version v11.12-s011 NR121003-1304/11_10_USR2-UB#Start routing data preparation.
So I quit and try it again, The funny thing, I can route the nets manully without violations. If one cell is deleted before, NanoRoute routes. And further, I make a block of the multi height design, it can be routed properly. But both type of cells together in one design doesn't work.
Has anyone an idea, did I forgot something in the setup?
Thanks & regards,