Diagnosing Congestions

Hi Richard,

thank you for analyzing the design and providing strategies to address short and long wire routing congestion.

We have replaced the firmware blocks responsible for most of the short wire routing congestion with alternative implementations. As a result, the compilation now completes without congestion errors or timing violations.

However, we are surprised to see that the long wire routing hotspot map still displays large and intense hotspots (see below).

Based on the hotspot maps, we initially assumed that improving long wire utilization was necessary, but the successful compilation suggests otherwise. Could you clarify how we should interpret the long wire utilization hotspot map to make informed design improvements?

We are currently analyzing short wire utilization and will follow up with further questions next week.

Best regards,

Nick Fritzsche