open-source-silicon.dev

<https://github.com/The-OpenROAD-Project/OpenLane/issues/640|#640 Openroad Detail route fails with MetSpc DRC violation, where it works in Older version OpenRoad>
New issue created by <https://github.com/dineshannayya|dineshannayya>
*Description*

I have using the Efabless openlane for detail routing, which uses openroad version:

1 eca774ae4c0f2b383f859887d9e5ddd608b6d3b3

I see details route fails with MetSpc DRC violation around the SRAM memory generated by OpenPDK on Sky130 technology

Attached the setup at exp1.tar.gz, command: run_cmd

<https://github.com/The-OpenROAD-Project/OpenLane/files/7319821/exp1.tar.gz|exp1.tar.gz>

Attached one the MetSpec violating Pin (sram_addr1[0] screen shoot

<https://user-images.githubusercontent.com/8286294/136740794-1d2cbc2f-023f-481f-86e8-04147c613f74.png|MetSpec_Vio_sram_addr1_0>

*Working Case*

Same Database works Openroad version : OpenROAD 0.9.0 1415572a73 (This Openlane RC7 Version)  
<https://github.com/The-OpenROAD-Project/OpenLane/files/7319824/exp2.tar.gz|exp2.tar.gz>

working setup is available at exp2.tar.gz command: run_cmd

Attached the working sram_add1[0] screeshoot

<https://user-images.githubusercontent.com/8286294/136740848-6826ed6b-d1e3-49f1-a4be-ad62d9c1ebde.png|Working_sram_addr1_0>

Let me know any additional information needed
<https://github.com/The-OpenROAD-Project/OpenLane|The-OpenROAD-Project/OpenLane>