Debugging simulation results

The NetlistViewer tool is useful for debugging your netlist when simulation results are complex or conflicting with design constraints.

In most cases, this occurs when the output of a flip-flop is being fed back into the input without a reset, preset, or clear input. NetlistViewer can help you verify that such a flip-flop configuration exists in the design.

To locate and view the flip-flops:

1. Click NetlistViewer in the Design Flow window.

2. Zoom to locate the flip-flops.