| # While the code below looks messy, it was taken directly from a vivado example |
| # See here (https://www.xilinx.com/support/answers/66386.html) |
| # See also this link (https://github.com/lowRISC/opentitan/pull/8138#issuecomment-916696830) |
| # for a thorough explanation of why such a custom placement helps. |
| # Note the placement location was not chosen through any systematic means, but through trial |
| # and error, it may become necessary in the future to tweak this if other congestion |
| # issues arise. |
| |
| ## Delete placement constraint for now since it helps timing closure, but will keep the file for now. |