Intel® Quartus® Prime Pro Edition User Guide: Power Analysis and Optimization

ID 683174
Date 10/04/2021

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1.5.5. Partial Design Simulation Power Analysis Flow

You can perform a simulation in which the entire simulation time is not applicable to signal activity calculation. For example, if you run a simulation for 10,000 clock cycles and reset the chip for the first 2,000 clock cycles. If the Power Analyzer performs the signal activity calculation over all 10,000 cycles, the toggle rates are only 80% of their steady state value (because the chip is in reset for the first 20% of the simulation). In this case, you must specify the useful parts of the .vcd for power analysis. The Limit VCD Period option enables you to specify a start and end time when performing signal activity calculations.

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