Hi,
I have a design with two identical 16 taps filters runing in parallel on the same inputs. A switch allow to disable one of the two filters.
I also have two test bench runing on the same inputs : - one has the two filters enabled. - one has only one filter enabled.
I used post-synthesis files (.vho) to simulate the two test bench and record all signals into .vcd files (values changed dump files)
I use these .vcd files to perform Power consumption estimation for the two test bench.
In the case where only one filter is running, I only have 45% of the nodes toggled during simulation. In the case where the two filters are running, I get 85% of the nodes toggled during simulation.
In the first case, the powerplay power analyser inidcates a low power estimation confidence. In the second case, the powerplay power analyser indicates a medium power estimation confidence.
Can I consider the power estimation confidence in the first case medium as in the second case, knowing that if the estimation is low, it's just because I have intentionally not used half (1 filter out of 2) of the design ?